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Diffstat (limited to '')
| -rw-r--r-- | collectors/apps.plugin/apps_plugin.c | 5422 |
1 files changed, 5422 insertions, 0 deletions
diff --git a/collectors/apps.plugin/apps_plugin.c b/collectors/apps.plugin/apps_plugin.c new file mode 100644 index 00000000..5bcda84f --- /dev/null +++ b/collectors/apps.plugin/apps_plugin.c @@ -0,0 +1,5422 @@ +// SPDX-License-Identifier: GPL-3.0-or-later + +/* + * netdata apps.plugin + * (C) Copyright 2023 Netdata Inc. + * Released under GPL v3+ + */ + +#include "collectors/all.h" +#include "libnetdata/libnetdata.h" +#include "libnetdata/required_dummies.h" + +#define APPS_PLUGIN_PROCESSES_FUNCTION_DESCRIPTION "Detailed information on the currently running processes." + +#define APPS_PLUGIN_FUNCTIONS() do { \ + fprintf(stdout, PLUGINSD_KEYWORD_FUNCTION " \"processes\" %d \"%s\"\n", PLUGINS_FUNCTIONS_TIMEOUT_DEFAULT, APPS_PLUGIN_PROCESSES_FUNCTION_DESCRIPTION); \ + } while(0) + +#define APPS_PLUGIN_GLOBAL_FUNCTIONS() do { \ + fprintf(stdout, PLUGINSD_KEYWORD_FUNCTION " GLOBAL \"processes\" %d \"%s\"\n", PLUGINS_FUNCTIONS_TIMEOUT_DEFAULT, APPS_PLUGIN_PROCESSES_FUNCTION_DESCRIPTION); \ + } while(0) + +// ---------------------------------------------------------------------------- +// debugging + +static int debug_enabled = 0; +static inline void debug_log_int(const char *fmt, ... ) { + va_list args; + + fprintf( stderr, "apps.plugin: "); + va_start( args, fmt ); + vfprintf( stderr, fmt, args ); + va_end( args ); + + fputc('\n', stderr); +} + +#ifdef NETDATA_INTERNAL_CHECKS + +#define debug_log(fmt, args...) do { if(unlikely(debug_enabled)) debug_log_int(fmt, ##args); } while(0) + +#else + +static inline void debug_log_dummy(void) {} +#define debug_log(fmt, args...) debug_log_dummy() + +#endif + + +// ---------------------------------------------------------------------------- + +#ifdef __FreeBSD__ +#include <sys/user.h> +#endif + +// ---------------------------------------------------------------------------- +// per O/S configuration + +// the minimum PID of the system +// this is also the pid of the init process +#define INIT_PID 1 + +// if the way apps.plugin will work, will read the entire process list, +// including the resource utilization of each process, instantly +// set this to 1 +// when set to 0, apps.plugin builds a sort list of processes, in order +// to process children processes, before parent processes +#ifdef __FreeBSD__ +#define ALL_PIDS_ARE_READ_INSTANTLY 1 +#else +#define ALL_PIDS_ARE_READ_INSTANTLY 0 +#endif + +// ---------------------------------------------------------------------------- +// string lengths + +#define MAX_COMPARE_NAME 100 +#define MAX_NAME 100 +#define MAX_CMDLINE 16384 + +// ---------------------------------------------------------------------------- +// the rates we are going to send to netdata will have this detail a value of: +// - 1 will send just integer parts to netdata +// - 100 will send 2 decimal points +// - 1000 will send 3 decimal points +// etc. +#define RATES_DETAIL 10000ULL + +// ---------------------------------------------------------------------------- +// factor for calculating correct CPU time values depending on units of raw data +static unsigned int time_factor = 0; + +// ---------------------------------------------------------------------------- +// to avoid reallocating too frequently, we can increase the number of spare +// file descriptors used by processes. +// IMPORTANT: +// having a lot of spares, increases the CPU utilization of the plugin. +#define MAX_SPARE_FDS 1 + +// ---------------------------------------------------------------------------- +// command line options + +static int + update_every = 1, + enable_guest_charts = 0, +#ifdef __FreeBSD__ + enable_file_charts = 0, +#else + enable_file_charts = 1, + max_fds_cache_seconds = 60, +#endif + enable_function_cmdline = 0, + enable_detailed_uptime_charts = 0, + enable_users_charts = 1, + enable_groups_charts = 1, + include_exited_childs = 1; + +// will be changed to getenv(NETDATA_USER_CONFIG_DIR) if it exists +static char *user_config_dir = CONFIG_DIR; +static char *stock_config_dir = LIBCONFIG_DIR; + +// some variables for keeping track of processes count by states +typedef enum { + PROC_STATUS_RUNNING = 0, + PROC_STATUS_SLEEPING_D, // uninterruptible sleep + PROC_STATUS_SLEEPING, // interruptible sleep + PROC_STATUS_ZOMBIE, + PROC_STATUS_STOPPED, + PROC_STATUS_END, //place holder for ending enum fields +} proc_state; + +#ifndef __FreeBSD__ +static proc_state proc_state_count[PROC_STATUS_END]; +static const char *proc_states[] = { + [PROC_STATUS_RUNNING] = "running", + [PROC_STATUS_SLEEPING] = "sleeping_interruptible", + [PROC_STATUS_SLEEPING_D] = "sleeping_uninterruptible", + [PROC_STATUS_ZOMBIE] = "zombie", + [PROC_STATUS_STOPPED] = "stopped", + }; +#endif + +// ---------------------------------------------------------------------------- +// internal flags +// handled in code (automatically set) + +// log each problem once per process +// log flood protection flags (log_thrown) +typedef enum __attribute__((packed)) { + PID_LOG_IO = (1 << 0), + PID_LOG_STATUS = (1 << 1), + PID_LOG_CMDLINE = (1 << 2), + PID_LOG_FDS = (1 << 3), + PID_LOG_STAT = (1 << 4), + PID_LOG_LIMITS = (1 << 5), + PID_LOG_LIMITS_DETAIL = (1 << 6), +} PID_LOG; + +static int + show_guest_time = 0, // 1 when guest values are collected + show_guest_time_old = 0, + proc_pid_cmdline_is_needed = 0; // 1 when we need to read /proc/cmdline + + +// ---------------------------------------------------------------------------- +// internal counters + +static size_t + global_iterations_counter = 1, + calls_counter = 0, + file_counter = 0, + filenames_allocated_counter = 0, + inodes_changed_counter = 0, + links_changed_counter = 0, + targets_assignment_counter = 0; + + +// ---------------------------------------------------------------------------- +// Normalization +// +// With normalization we lower the collected metrics by a factor to make them +// match the total utilization of the system. +// The discrepancy exists because apps.plugin needs some time to collect all +// the metrics. This results in utilization that exceeds the total utilization +// of the system. +// +// During normalization, we align the per-process utilization, to the total of +// the system. We first consume the exited children utilization and it the +// collected values is above the total, we proportionally scale each reported +// metric. + +// the total system time, as reported by /proc/stat +static kernel_uint_t + global_utime = 0, + global_stime = 0, + global_gtime = 0; + +// the normalization ratios, as calculated by normalize_utilization() +NETDATA_DOUBLE + utime_fix_ratio = 1.0, + stime_fix_ratio = 1.0, + gtime_fix_ratio = 1.0, + minflt_fix_ratio = 1.0, + majflt_fix_ratio = 1.0, + cutime_fix_ratio = 1.0, + cstime_fix_ratio = 1.0, + cgtime_fix_ratio = 1.0, + cminflt_fix_ratio = 1.0, + cmajflt_fix_ratio = 1.0; + + +struct pid_on_target { + int32_t pid; + struct pid_on_target *next; +}; + +struct openfds { + kernel_uint_t files; + kernel_uint_t pipes; + kernel_uint_t sockets; + kernel_uint_t inotifies; + kernel_uint_t eventfds; + kernel_uint_t timerfds; + kernel_uint_t signalfds; + kernel_uint_t eventpolls; + kernel_uint_t other; +}; + +#define pid_openfds_sum(p) ((p)->openfds.files + (p)->openfds.pipes + (p)->openfds.sockets + (p)->openfds.inotifies + (p)->openfds.eventfds + (p)->openfds.timerfds + (p)->openfds.signalfds + (p)->openfds.eventpolls + (p)->openfds.other) + +struct pid_limits { +// kernel_uint_t max_cpu_time; +// kernel_uint_t max_file_size; +// kernel_uint_t max_data_size; +// kernel_uint_t max_stack_size; +// kernel_uint_t max_core_file_size; +// kernel_uint_t max_resident_set; +// kernel_uint_t max_processes; + kernel_uint_t max_open_files; +// kernel_uint_t max_locked_memory; +// kernel_uint_t max_address_space; +// kernel_uint_t max_file_locks; +// kernel_uint_t max_pending_signals; +// kernel_uint_t max_msgqueue_size; +// kernel_uint_t max_nice_priority; +// kernel_uint_t max_realtime_priority; +// kernel_uint_t max_realtime_timeout; +}; + +// ---------------------------------------------------------------------------- +// target +// +// target is the structure that processes are aggregated to be reported +// to netdata. +// +// - Each entry in /etc/apps_groups.conf creates a target. +// - Each user and group used by a process in the system, creates a target. + +struct target { + char compare[MAX_COMPARE_NAME + 1]; + uint32_t comparehash; + size_t comparelen; + + char id[MAX_NAME + 1]; + uint32_t idhash; + + char name[MAX_NAME + 1]; + char clean_name[MAX_NAME + 1]; // sanitized name used in chart id (need to replace at least dots) + uid_t uid; + gid_t gid; + + bool is_other; + + kernel_uint_t minflt; + kernel_uint_t cminflt; + kernel_uint_t majflt; + kernel_uint_t cmajflt; + kernel_uint_t utime; + kernel_uint_t stime; + kernel_uint_t gtime; + kernel_uint_t cutime; + kernel_uint_t cstime; + kernel_uint_t cgtime; + kernel_uint_t num_threads; + // kernel_uint_t rss; + + kernel_uint_t status_vmsize; + kernel_uint_t status_vmrss; + kernel_uint_t status_vmshared; + kernel_uint_t status_rssfile; + kernel_uint_t status_rssshmem; + kernel_uint_t status_vmswap; + kernel_uint_t status_voluntary_ctxt_switches; + kernel_uint_t status_nonvoluntary_ctxt_switches; + + kernel_uint_t io_logical_bytes_read; + kernel_uint_t io_logical_bytes_written; + kernel_uint_t io_read_calls; + kernel_uint_t io_write_calls; + kernel_uint_t io_storage_bytes_read; + kernel_uint_t io_storage_bytes_written; + kernel_uint_t io_cancelled_write_bytes; + + int *target_fds; + int target_fds_size; + + struct openfds openfds; + + NETDATA_DOUBLE max_open_files_percent; + + kernel_uint_t starttime; + kernel_uint_t collected_starttime; + kernel_uint_t uptime_min; + kernel_uint_t uptime_sum; + kernel_uint_t uptime_max; + + unsigned int processes; // how many processes have been merged to this + int exposed; // if set, we have sent this to netdata + int hidden; // if set, we set the hidden flag on the dimension + int debug_enabled; + int ends_with; + int starts_with; // if set, the compare string matches only the + // beginning of the command + + struct pid_on_target *root_pid; // list of aggregated pids for target debugging + + struct target *target; // the one that will be reported to netdata + struct target *next; +}; + +struct target + *apps_groups_default_target = NULL, // the default target + *apps_groups_root_target = NULL, // apps_groups.conf defined + *users_root_target = NULL, // users + *groups_root_target = NULL; // user groups + +size_t + apps_groups_targets_count = 0; // # of apps_groups.conf targets + + +// ---------------------------------------------------------------------------- +// pid_stat +// +// structure to store data for each process running +// see: man proc for the description of the fields + +struct pid_fd { + int fd; + +#ifndef __FreeBSD__ + ino_t inode; + char *filename; + uint32_t link_hash; + size_t cache_iterations_counter; + size_t cache_iterations_reset; +#endif +}; + +struct pid_stat { + int32_t pid; + int32_t ppid; + // int32_t pgrp; + // int32_t session; + // int32_t tty_nr; + // int32_t tpgid; + // uint64_t flags; + + char state; + + char comm[MAX_COMPARE_NAME + 1]; + char *cmdline; + + // these are raw values collected + kernel_uint_t minflt_raw; + kernel_uint_t cminflt_raw; + kernel_uint_t majflt_raw; + kernel_uint_t cmajflt_raw; + kernel_uint_t utime_raw; + kernel_uint_t stime_raw; + kernel_uint_t gtime_raw; // guest_time + kernel_uint_t cutime_raw; + kernel_uint_t cstime_raw; + kernel_uint_t cgtime_raw; // cguest_time + + // these are rates + kernel_uint_t minflt; + kernel_uint_t cminflt; + kernel_uint_t majflt; + kernel_uint_t cmajflt; + kernel_uint_t utime; + kernel_uint_t stime; + kernel_uint_t gtime; + kernel_uint_t cutime; + kernel_uint_t cstime; + kernel_uint_t cgtime; + + // int64_t priority; + // int64_t nice; + int32_t num_threads; + // int64_t itrealvalue; + kernel_uint_t collected_starttime; + // kernel_uint_t vsize; + // kernel_uint_t rss; + // kernel_uint_t rsslim; + // kernel_uint_t starcode; + // kernel_uint_t endcode; + // kernel_uint_t startstack; + // kernel_uint_t kstkesp; + // kernel_uint_t kstkeip; + // uint64_t signal; + // uint64_t blocked; + // uint64_t sigignore; + // uint64_t sigcatch; + // uint64_t wchan; + // uint64_t nswap; + // uint64_t cnswap; + // int32_t exit_signal; + // int32_t processor; + // uint32_t rt_priority; + // uint32_t policy; + // kernel_uint_t delayacct_blkio_ticks; + + uid_t uid; + gid_t gid; + + kernel_uint_t status_voluntary_ctxt_switches_raw; + kernel_uint_t status_nonvoluntary_ctxt_switches_raw; + + kernel_uint_t status_vmsize; + kernel_uint_t status_vmrss; + kernel_uint_t status_vmshared; + kernel_uint_t status_rssfile; + kernel_uint_t status_rssshmem; + kernel_uint_t status_vmswap; + kernel_uint_t status_voluntary_ctxt_switches; + kernel_uint_t status_nonvoluntary_ctxt_switches; +#ifndef __FreeBSD__ + ARL_BASE *status_arl; +#endif + + kernel_uint_t io_logical_bytes_read_raw; + kernel_uint_t io_logical_bytes_written_raw; + kernel_uint_t io_read_calls_raw; + kernel_uint_t io_write_calls_raw; + kernel_uint_t io_storage_bytes_read_raw; + kernel_uint_t io_storage_bytes_written_raw; + kernel_uint_t io_cancelled_write_bytes_raw; + + kernel_uint_t io_logical_bytes_read; + kernel_uint_t io_logical_bytes_written; + kernel_uint_t io_read_calls; + kernel_uint_t io_write_calls; + kernel_uint_t io_storage_bytes_read; + kernel_uint_t io_storage_bytes_written; + kernel_uint_t io_cancelled_write_bytes; + + kernel_uint_t uptime; + + struct pid_fd *fds; // array of fds it uses + size_t fds_size; // the size of the fds array + + struct openfds openfds; + struct pid_limits limits; + + NETDATA_DOUBLE openfds_limits_percent; + + int sortlist; // higher numbers = top on the process tree + // each process gets a unique number + + int children_count; // number of processes directly referencing this + int keeploops; // increases by 1 every time keep is 1 and updated 0 + + PID_LOG log_thrown; + + bool keep; // true when we need to keep this process in memory even after it exited + bool updated; // true when the process is currently running + bool merged; // true when it has been merged to its parent + bool read; // true when we have already read this process for this iteration + bool matched_by_config; + + struct target *target; // app_groups.conf targets + struct target *user_target; // uid based targets + struct target *group_target; // gid based targets + + usec_t stat_collected_usec; + usec_t last_stat_collected_usec; + + usec_t io_collected_usec; + usec_t last_io_collected_usec; + usec_t last_limits_collected_usec; + + char *fds_dirname; // the full directory name in /proc/PID/fd + + char *stat_filename; + char *status_filename; + char *io_filename; + char *cmdline_filename; + char *limits_filename; + + struct pid_stat *parent; + struct pid_stat *prev; + struct pid_stat *next; +}; + +size_t pagesize; + +kernel_uint_t global_uptime; + +static struct pid_stat + *root_of_pids = NULL, // global list of all processes running + **all_pids = NULL; // to avoid allocations, we pre-allocate + // a pointer for each pid in the entire pid space. + +static size_t + all_pids_count = 0; // the number of processes running + +#if (ALL_PIDS_ARE_READ_INSTANTLY == 0) +// Another pre-allocated list of all possible pids. +// We need it to pids and assign them a unique sortlist id, so that we +// read parents before children. This is needed to prevent a situation where +// a child is found running, but until we read its parent, it has exited and +// its parent has accumulated its resources. +static pid_t + *all_pids_sortlist = NULL; +#endif + +// ---------------------------------------------------------------------------- +// file descriptor +// +// this is used to keep a global list of all open files of the system. +// it is needed in order to calculate the unique files processes have open. + +#define FILE_DESCRIPTORS_INCREASE_STEP 100 + +// types for struct file_descriptor->type +typedef enum fd_filetype { + FILETYPE_OTHER, + FILETYPE_FILE, + FILETYPE_PIPE, + FILETYPE_SOCKET, + FILETYPE_INOTIFY, + FILETYPE_EVENTFD, + FILETYPE_EVENTPOLL, + FILETYPE_TIMERFD, + FILETYPE_SIGNALFD +} FD_FILETYPE; + +struct file_descriptor { + avl_t avl; + +#ifdef NETDATA_INTERNAL_CHECKS + uint32_t magic; +#endif /* NETDATA_INTERNAL_CHECKS */ + + const char *name; + uint32_t hash; + + FD_FILETYPE type; + int count; + int pos; +} *all_files = NULL; + +static int + all_files_len = 0, + all_files_size = 0; + +// ---------------------------------------------------------------------------- +// read users and groups from files + +struct user_or_group_id { + avl_t avl; + + union { + uid_t uid; + gid_t gid; + } id; + + char *name; + + int updated; + + struct user_or_group_id * next; +}; + +enum user_or_group_id_type { + USER_ID, + GROUP_ID +}; + +struct user_or_group_ids{ + enum user_or_group_id_type type; + + avl_tree_type index; + struct user_or_group_id *root; + + char filename[FILENAME_MAX + 1]; +}; + +int user_id_compare(void* a, void* b) { + if(((struct user_or_group_id *)a)->id.uid < ((struct user_or_group_id *)b)->id.uid) + return -1; + + else if(((struct user_or_group_id *)a)->id.uid > ((struct user_or_group_id *)b)->id.uid) + return 1; + + else + return 0; +} + +struct user_or_group_ids all_user_ids = { + .type = USER_ID, + + .index = { + NULL, + user_id_compare + }, + + .root = NULL, + + .filename = "", +}; + +int group_id_compare(void* a, void* b) { + if(((struct user_or_group_id *)a)->id.gid < ((struct user_or_group_id *)b)->id.gid) + return -1; + + else if(((struct user_or_group_id *)a)->id.gid > ((struct user_or_group_id *)b)->id.gid) + return 1; + + else + return 0; +} + +struct user_or_group_ids all_group_ids = { + .type = GROUP_ID, + + .index = { + NULL, + group_id_compare + }, + + .root = NULL, + + .filename = "", +}; + +int file_changed(const struct stat *statbuf, struct timespec *last_modification_time) { + if(likely(statbuf->st_mtim.tv_sec == last_modification_time->tv_sec && + statbuf->st_mtim.tv_nsec == last_modification_time->tv_nsec)) return 0; + + last_modification_time->tv_sec = statbuf->st_mtim.tv_sec; + last_modification_time->tv_nsec = statbuf->st_mtim.tv_nsec; + + return 1; +} + +int read_user_or_group_ids(struct user_or_group_ids *ids, struct timespec *last_modification_time) { + struct stat statbuf; + if(unlikely(stat(ids->filename, &statbuf))) + return 1; + else + if(likely(!file_changed(&statbuf, last_modification_time))) return 0; + + procfile *ff = procfile_open(ids->filename, " :\t", PROCFILE_FLAG_DEFAULT); + if(unlikely(!ff)) return 1; + + ff = procfile_readall(ff); + if(unlikely(!ff)) return 1; + + size_t line, lines = procfile_lines(ff); + + for(line = 0; line < lines ;line++) { + size_t words = procfile_linewords(ff, line); + if(unlikely(words < 3)) continue; + + char *name = procfile_lineword(ff, line, 0); + if(unlikely(!name || !*name)) continue; + + char *id_string = procfile_lineword(ff, line, 2); + if(unlikely(!id_string || !*id_string)) continue; + + + struct user_or_group_id *user_or_group_id = callocz(1, sizeof(struct user_or_group_id)); + + if(ids->type == USER_ID) + user_or_group_id->id.uid = (uid_t) str2ull(id_string, NULL); + else + user_or_group_id->id.gid = (uid_t) str2ull(id_string, NULL); + + user_or_group_id->name = strdupz(name); + user_or_group_id->updated = 1; + + struct user_or_group_id *existing_user_id = NULL; + + if(likely(ids->root)) + existing_user_id = (struct user_or_group_id *)avl_search(&ids->index, (avl_t *) user_or_group_id); + + if(unlikely(existing_user_id)) { + freez(existing_user_id->name); + existing_user_id->name = user_or_group_id->name; + existing_user_id->updated = 1; + freez(user_or_group_id); + } + else { + if(unlikely(avl_insert(&ids->index, (avl_t *) user_or_group_id) != (void *) user_or_group_id)) { + netdata_log_error("INTERNAL ERROR: duplicate indexing of id during realloc"); + }; + + user_or_group_id->next = ids->root; + ids->root = user_or_group_id; + } + } + + procfile_close(ff); + + // remove unused ids + struct user_or_group_id *user_or_group_id = ids->root, *prev_user_id = NULL; + + while(user_or_group_id) { + if(unlikely(!user_or_group_id->updated)) { + if(unlikely((struct user_or_group_id *)avl_remove(&ids->index, (avl_t *) user_or_group_id) != user_or_group_id)) + netdata_log_error("INTERNAL ERROR: removal of unused id from index, removed a different id"); + + if(prev_user_id) + prev_user_id->next = user_or_group_id->next; + else + ids->root = user_or_group_id->next; + + freez(user_or_group_id->name); + freez(user_or_group_id); + + if(prev_user_id) + user_or_group_id = prev_user_id->next; + else + user_or_group_id = ids->root; + } + else { + user_or_group_id->updated = 0; + + prev_user_id = user_or_group_id; + user_or_group_id = user_or_group_id->next; + } + } + + return 0; +} + +// ---------------------------------------------------------------------------- +// apps_groups.conf +// aggregate all processes in groups, to have a limited number of dimensions + +static struct target *get_users_target(uid_t uid) { + struct target *w; + for(w = users_root_target ; w ; w = w->next) + if(w->uid == uid) return w; + + w = callocz(sizeof(struct target), 1); + snprintfz(w->compare, MAX_COMPARE_NAME, "%u", uid); + w->comparehash = simple_hash(w->compare); + w->comparelen = strlen(w->compare); + + snprintfz(w->id, MAX_NAME, "%u", uid); + w->idhash = simple_hash(w->id); + + struct user_or_group_id user_id_to_find, *user_or_group_id = NULL; + user_id_to_find.id.uid = uid; + + if(*netdata_configured_host_prefix) { + static struct timespec last_passwd_modification_time; + int ret = read_user_or_group_ids(&all_user_ids, &last_passwd_modification_time); + + if(likely(!ret && all_user_ids.index.root)) + user_or_group_id = (struct user_or_group_id *)avl_search(&all_user_ids.index, (avl_t *) &user_id_to_find); + } + + if(user_or_group_id && user_or_group_id->name && *user_or_group_id->name) { + snprintfz(w->name, MAX_NAME, "%s", user_or_group_id->name); + } + else { + struct passwd *pw = getpwuid(uid); + if(!pw || !pw->pw_name || !*pw->pw_name) + snprintfz(w->name, MAX_NAME, "%u", uid); + else + snprintfz(w->name, MAX_NAME, "%s", pw->pw_name); + } + + strncpyz(w->clean_name, w->name, MAX_NAME); + netdata_fix_chart_name(w->clean_name); + + w->uid = uid; + + w->next = users_root_target; + users_root_target = w; + + debug_log("added uid %u ('%s') target", w->uid, w->name); + + return w; +} + +struct target *get_groups_target(gid_t gid) +{ + struct target *w; + for(w = groups_root_target ; w ; w = w->next) + if(w->gid == gid) return w; + + w = callocz(sizeof(struct target), 1); + snprintfz(w->compare, MAX_COMPARE_NAME, "%u", gid); + w->comparehash = simple_hash(w->compare); + w->comparelen = strlen(w->compare); + + snprintfz(w->id, MAX_NAME, "%u", gid); + w->idhash = simple_hash(w->id); + + struct user_or_group_id group_id_to_find, *group_id = NULL; + group_id_to_find.id.gid = gid; + + if(*netdata_configured_host_prefix) { + static struct timespec last_group_modification_time; + int ret = read_user_or_group_ids(&all_group_ids, &last_group_modification_time); + + if(likely(!ret && all_group_ids.index.root)) + group_id = (struct user_or_group_id *)avl_search(&all_group_ids.index, (avl_t *) &group_id_to_find); + } + + if(group_id && group_id->name && *group_id->name) { + snprintfz(w->name, MAX_NAME, "%s", group_id->name); + } + else { + struct group *gr = getgrgid(gid); + if(!gr || !gr->gr_name || !*gr->gr_name) + snprintfz(w->name, MAX_NAME, "%u", gid); + else + snprintfz(w->name, MAX_NAME, "%s", gr->gr_name); + } + + strncpyz(w->clean_name, w->name, MAX_NAME); + netdata_fix_chart_name(w->clean_name); + + w->gid = gid; + + w->next = groups_root_target; + groups_root_target = w; + + debug_log("added gid %u ('%s') target", w->gid, w->name); + + return w; +} + +// find or create a new target +// there are targets that are just aggregated to other target (the second argument) +static struct target *get_apps_groups_target(const char *id, struct target *target, const char *name) { + int tdebug = 0, thidden = target?target->hidden:0, ends_with = 0; + const char *nid = id; + + // extract the options + while(nid[0] == '-' || nid[0] == '+' || nid[0] == '*') { + if(nid[0] == '-') thidden = 1; + if(nid[0] == '+') tdebug = 1; + if(nid[0] == '*') ends_with = 1; + nid++; + } + uint32_t hash = simple_hash(id); + + // find if it already exists + struct target *w, *last = apps_groups_root_target; + for(w = apps_groups_root_target ; w ; w = w->next) { + if(w->idhash == hash && strncmp(nid, w->id, MAX_NAME) == 0) + return w; + + last = w; + } + + // find an existing target + if(unlikely(!target)) { + while(*name == '-') { + if(*name == '-') thidden = 1; + name++; + } + + for(target = apps_groups_root_target ; target != NULL ; target = target->next) { + if(!target->target && strcmp(name, target->name) == 0) + break; + } + + if(unlikely(debug_enabled)) { + if(unlikely(target)) + debug_log("REUSING TARGET NAME '%s' on ID '%s'", target->name, target->id); + else + debug_log("NEW TARGET NAME '%s' on ID '%s'", name, id); + } + } + + if(target && target->target) + fatal("Internal Error: request to link process '%s' to target '%s' which is linked to target '%s'", id, target->id, target->target->id); + + w = callocz(sizeof(struct target), 1); + strncpyz(w->id, nid, MAX_NAME); + w->idhash = simple_hash(w->id); + + if(unlikely(!target)) + // copy the name + strncpyz(w->name, name, MAX_NAME); + else + // copy the id + strncpyz(w->name, nid, MAX_NAME); + + // dots are used to distinguish chart type and id in streaming, so we should replace them + strncpyz(w->clean_name, w->name, MAX_NAME); + netdata_fix_chart_name(w->clean_name); + for (char *d = w->clean_name; *d; d++) { + if (*d == '.') + *d = '_'; + } + + strncpyz(w->compare, nid, MAX_COMPARE_NAME); + size_t len = strlen(w->compare); + if(w->compare[len - 1] == '*') { + w->compare[len - 1] = '\0'; + w->starts_with = 1; + } + w->ends_with = ends_with; + + if(w->starts_with && w->ends_with) + proc_pid_cmdline_is_needed = 1; + + w->comparehash = simple_hash(w->compare); + w->comparelen = strlen(w->compare); + + w->hidden = thidden; +#ifdef NETDATA_INTERNAL_CHECKS + w->debug_enabled = tdebug; +#else + if(tdebug) + fprintf(stderr, "apps.plugin has been compiled without debugging\n"); +#endif + w->target = target; + + // append it, to maintain the order in apps_groups.conf + if(last) last->next = w; + else apps_groups_root_target = w; + + debug_log("ADDING TARGET ID '%s', process name '%s' (%s), aggregated on target '%s', options: %s %s" + , w->id + , w->compare, (w->starts_with && w->ends_with)?"substring":((w->starts_with)?"prefix":((w->ends_with)?"suffix":"exact")) + , w->target?w->target->name:w->name + , (w->hidden)?"hidden":"-" + , (w->debug_enabled)?"debug":"-" + ); + + return w; +} + +// read the apps_groups.conf file +static int read_apps_groups_conf(const char *path, const char *file) +{ + char filename[FILENAME_MAX + 1]; + + snprintfz(filename, FILENAME_MAX, "%s/apps_%s.conf", path, file); + + debug_log("process groups file: '%s'", filename); + + // ---------------------------------------- + + procfile *ff = procfile_open(filename, " :\t", PROCFILE_FLAG_DEFAULT); + if(!ff) return 1; + + procfile_set_quotes(ff, "'\""); + + ff = procfile_readall(ff); + if(!ff) + return 1; + + size_t line, lines = procfile_lines(ff); + + for(line = 0; line < lines ;line++) { + size_t word, words = procfile_linewords(ff, line); + if(!words) continue; + + char *name = procfile_lineword(ff, line, 0); + if(!name || !*name) continue; + + // find a possibly existing target + struct target *w = NULL; + + // loop through all words, skipping the first one (the name) + for(word = 0; word < words ;word++) { + char *s = procfile_lineword(ff, line, word); + if(!s || !*s) continue; + if(*s == '#') break; + + // is this the first word? skip it + if(s == name) continue; + + // add this target + struct target *n = get_apps_groups_target(s, w, name); + if(!n) { + netdata_log_error("Cannot create target '%s' (line %zu, word %zu)", s, line, word); + continue; + } + + // just some optimization + // to avoid searching for a target for each process + if(!w) w = n->target?n->target:n; + } + } + + procfile_close(ff); + + apps_groups_default_target = get_apps_groups_target("p+!o@w#e$i^r&7*5(-i)l-o_", NULL, "other"); // match nothing + if(!apps_groups_default_target) + fatal("Cannot create default target"); + apps_groups_default_target->is_other = true; + + // allow the user to override group 'other' + if(apps_groups_default_target->target) + apps_groups_default_target = apps_groups_default_target->target; + + return 0; +} + + +// ---------------------------------------------------------------------------- +// struct pid_stat management +static inline void init_pid_fds(struct pid_stat *p, size_t first, size_t size); + +static inline struct pid_stat *get_pid_entry(pid_t pid) { + if(unlikely(all_pids[pid])) + return all_pids[pid]; + + struct pid_stat *p = callocz(sizeof(struct pid_stat), 1); + p->fds = mallocz(sizeof(struct pid_fd) * MAX_SPARE_FDS); + p->fds_size = MAX_SPARE_FDS; + init_pid_fds(p, 0, p->fds_size); + p->pid = pid; + + DOUBLE_LINKED_LIST_APPEND_ITEM_UNSAFE(root_of_pids, p, prev, next); + + all_pids[pid] = p; + all_pids_count++; + + return p; +} + +static inline void del_pid_entry(pid_t pid) { + struct pid_stat *p = all_pids[pid]; + + if(unlikely(!p)) { + netdata_log_error("attempted to free pid %d that is not allocated.", pid); + return; + } + + debug_log("process %d %s exited, deleting it.", pid, p->comm); + + DOUBLE_LINKED_LIST_REMOVE_ITEM_UNSAFE(root_of_pids, p, prev, next); + + // free the filename +#ifndef __FreeBSD__ + { + size_t i; + for(i = 0; i < p->fds_size; i++) + if(p->fds[i].filename) + freez(p->fds[i].filename); + } +#endif + freez(p->fds); + + freez(p->fds_dirname); + freez(p->stat_filename); + freez(p->status_filename); + freez(p->limits_filename); +#ifndef __FreeBSD__ + arl_free(p->status_arl); +#endif + freez(p->io_filename); + freez(p->cmdline_filename); + freez(p->cmdline); + freez(p); + + all_pids[pid] = NULL; + all_pids_count--; +} + +// ---------------------------------------------------------------------------- + +static inline int managed_log(struct pid_stat *p, PID_LOG log, int status) { + if(unlikely(!status)) { + // netdata_log_error("command failed log %u, errno %d", log, errno); + + if(unlikely(debug_enabled || errno != ENOENT)) { + if(unlikely(debug_enabled || !(p->log_thrown & log))) { + p->log_thrown |= log; + switch(log) { + case PID_LOG_IO: + #ifdef __FreeBSD__ + netdata_log_error("Cannot fetch process %d I/O info (command '%s')", p->pid, p->comm); + #else + netdata_log_error("Cannot process %s/proc/%d/io (command '%s')", netdata_configured_host_prefix, p->pid, p->comm); + #endif + break; + + case PID_LOG_STATUS: + #ifdef __FreeBSD__ + netdata_log_error("Cannot fetch process %d status info (command '%s')", p->pid, p->comm); + #else + netdata_log_error("Cannot process %s/proc/%d/status (command '%s')", netdata_configured_host_prefix, p->pid, p->comm); + #endif + break; + + case PID_LOG_CMDLINE: + #ifdef __FreeBSD__ + netdata_log_error("Cannot fetch process %d command line (command '%s')", p->pid, p->comm); + #else + netdata_log_error("Cannot process %s/proc/%d/cmdline (command '%s')", netdata_configured_host_prefix, p->pid, p->comm); + #endif + break; + + case PID_LOG_FDS: + #ifdef __FreeBSD__ + netdata_log_error("Cannot fetch process %d files (command '%s')", p->pid, p->comm); + #else + netdata_log_error("Cannot process entries in %s/proc/%d/fd (command '%s')", netdata_configured_host_prefix, p->pid, p->comm); + #endif + break; + + case PID_LOG_LIMITS: + #ifdef __FreeBSD__ + ; + #else + netdata_log_error("Cannot process %s/proc/%d/limits (command '%s')", netdata_configured_host_prefix, p->pid, p->comm); + #endif + + case PID_LOG_STAT: + break; + + default: + netdata_log_error("unhandled error for pid %d, command '%s'", p->pid, p->comm); + break; + } + } + } + errno = 0; + } + else if(unlikely(p->log_thrown & log)) { + // netdata_log_error("unsetting log %u on pid %d", log, p->pid); + p->log_thrown &= ~log; + } + + return status; +} + +static inline void assign_target_to_pid(struct pid_stat *p) { + targets_assignment_counter++; + + uint32_t hash = simple_hash(p->comm); + size_t pclen = strlen(p->comm); + + struct target *w; + for(w = apps_groups_root_target; w ; w = w->next) { + // if(debug_enabled || (p->target && p->target->debug_enabled)) debug_log_int("\t\tcomparing '%s' with '%s'", w->compare, p->comm); + + // find it - 4 cases: + // 1. the target is not a pattern + // 2. the target has the prefix + // 3. the target has the suffix + // 4. the target is something inside cmdline + + if(unlikely(( (!w->starts_with && !w->ends_with && w->comparehash == hash && !strcmp(w->compare, p->comm)) + || (w->starts_with && !w->ends_with && !strncmp(w->compare, p->comm, w->comparelen)) + || (!w->starts_with && w->ends_with && pclen >= w->comparelen && !strcmp(w->compare, &p->comm[pclen - w->comparelen])) + || (proc_pid_cmdline_is_needed && w->starts_with && w->ends_with && p->cmdline && strstr(p->cmdline, w->compare)) + ))) { + + p->matched_by_config = true; + if(w->target) p->target = w->target; + else p->target = w; + + if(debug_enabled || (p->target && p->target->debug_enabled)) + debug_log_int("%s linked to target %s", p->comm, p->target->name); + + break; + } + } +} + + +// ---------------------------------------------------------------------------- +// update pids from proc + +static inline int read_proc_pid_cmdline(struct pid_stat *p) { + static char cmdline[MAX_CMDLINE + 1]; + +#ifdef __FreeBSD__ + size_t i, bytes = MAX_CMDLINE; + int mib[4]; + + mib[0] = CTL_KERN; + mib[1] = KERN_PROC; + mib[2] = KERN_PROC_ARGS; + mib[3] = p->pid; + if (unlikely(sysctl(mib, 4, cmdline, &bytes, NULL, 0))) + goto cleanup; +#else + if(unlikely(!p->cmdline_filename)) { + char filename[FILENAME_MAX + 1]; + snprintfz(filename, FILENAME_MAX, "%s/proc/%d/cmdline", netdata_configured_host_prefix, p->pid); + p->cmdline_filename = strdupz(filename); + } + + int fd = open(p->cmdline_filename, procfile_open_flags, 0666); + if(unlikely(fd == -1)) goto cleanup; + + ssize_t i, bytes = read(fd, cmdline, MAX_CMDLINE); + close(fd); + + if(unlikely(bytes < 0)) goto cleanup; +#endif + + cmdline[bytes] = '\0'; + for(i = 0; i < bytes ; i++) { + if(unlikely(!cmdline[i])) cmdline[i] = ' '; + } + + if(p->cmdline) freez(p->cmdline); + p->cmdline = strdupz(cmdline); + + debug_log("Read file '%s' contents: %s", p->cmdline_filename, p->cmdline); + + return 1; + +cleanup: + // copy the command to the command line + if(p->cmdline) freez(p->cmdline); + p->cmdline = strdupz(p->comm); + return 0; +} + +// ---------------------------------------------------------------------------- +// macro to calculate the incremental rate of a value +// each parameter is accessed only ONCE - so it is safe to pass function calls +// or other macros as parameters + +#define incremental_rate(rate_variable, last_kernel_variable, new_kernel_value, collected_usec, last_collected_usec) { \ + kernel_uint_t _new_tmp = new_kernel_value; \ + (rate_variable) = (_new_tmp - (last_kernel_variable)) * (USEC_PER_SEC * RATES_DETAIL) / ((collected_usec) - (last_collected_usec)); \ + (last_kernel_variable) = _new_tmp; \ + } + +// the same macro for struct pid members +#define pid_incremental_rate(type, var, value) \ + incremental_rate(var, var##_raw, value, p->type##_collected_usec, p->last_##type##_collected_usec) + + +// ---------------------------------------------------------------------------- + +#ifndef __FreeBSD__ +struct arl_callback_ptr { + struct pid_stat *p; + procfile *ff; + size_t line; +}; + +void arl_callback_status_uid(const char *name, uint32_t hash, const char *value, void *dst) { + (void)name; (void)hash; (void)value; + struct arl_callback_ptr *aptr = (struct arl_callback_ptr *)dst; + if(unlikely(procfile_linewords(aptr->ff, aptr->line) < 5)) return; + + //const char *real_uid = procfile_lineword(aptr->ff, aptr->line, 1); + const char *effective_uid = procfile_lineword(aptr->ff, aptr->line, 2); + //const char *saved_uid = procfile_lineword(aptr->ff, aptr->line, 3); + //const char *filesystem_uid = procfile_lineword(aptr->ff, aptr->line, 4); + + if(likely(effective_uid && *effective_uid)) + aptr->p->uid = (uid_t)str2l(effective_uid); +} + +void arl_callback_status_gid(const char *name, uint32_t hash, const char *value, void *dst) { + (void)name; (void)hash; (void)value; + struct arl_callback_ptr *aptr = (struct arl_callback_ptr *)dst; + if(unlikely(procfile_linewords(aptr->ff, aptr->line) < 5)) return; + + //const char *real_gid = procfile_lineword(aptr->ff, aptr->line, 1); + const char *effective_gid = procfile_lineword(aptr->ff, aptr->line, 2); + //const char *saved_gid = procfile_lineword(aptr->ff, aptr->line, 3); + //const char *filesystem_gid = procfile_lineword(aptr->ff, aptr->line, 4); + + if(likely(effective_gid && *effective_gid)) + aptr->p->gid = (uid_t)str2l(effective_gid); +} + +void arl_callback_status_vmsize(const char *name, uint32_t hash, const char *value, void *dst) { + (void)name; (void)hash; (void)value; + struct arl_callback_ptr *aptr = (struct arl_callback_ptr *)dst; + if(unlikely(procfile_linewords(aptr->ff, aptr->line) < 3)) return; + + aptr->p->status_vmsize = str2kernel_uint_t(procfile_lineword(aptr->ff, aptr->line, 1)); +} + +void arl_callback_status_vmswap(const char *name, uint32_t hash, const char *value, void *dst) { + (void)name; (void)hash; (void)value; + struct arl_callback_ptr *aptr = (struct arl_callback_ptr *)dst; + if(unlikely(procfile_linewords(aptr->ff, aptr->line) < 3)) return; + + aptr->p->status_vmswap = str2kernel_uint_t(procfile_lineword(aptr->ff, aptr->line, 1)); +} + +void arl_callback_status_vmrss(const char *name, uint32_t hash, const char *value, void *dst) { + (void)name; (void)hash; (void)value; + struct arl_callback_ptr *aptr = (struct arl_callback_ptr *)dst; + if(unlikely(procfile_linewords(aptr->ff, aptr->line) < 3)) return; + + aptr->p->status_vmrss = str2kernel_uint_t(procfile_lineword(aptr->ff, aptr->line, 1)); +} + +void arl_callback_status_rssfile(const char *name, uint32_t hash, const char *value, void *dst) { + (void)name; (void)hash; (void)value; + struct arl_callback_ptr *aptr = (struct arl_callback_ptr *)dst; + if(unlikely(procfile_linewords(aptr->ff, aptr->line) < 3)) return; + + aptr->p->status_rssfile = str2kernel_uint_t(procfile_lineword(aptr->ff, aptr->line, 1)); +} + +void arl_callback_status_rssshmem(const char *name, uint32_t hash, const char *value, void *dst) { + (void)name; (void)hash; (void)value; + struct arl_callback_ptr *aptr = (struct arl_callback_ptr *)dst; + if(unlikely(procfile_linewords(aptr->ff, aptr->line) < 3)) return; + + aptr->p->status_rssshmem = str2kernel_uint_t(procfile_lineword(aptr->ff, aptr->line, 1)); +} + +void arl_callback_status_voluntary_ctxt_switches(const char *name, uint32_t hash, const char *value, void *dst) { + (void)name; (void)hash; (void)value; + struct arl_callback_ptr *aptr = (struct arl_callback_ptr *)dst; + if(unlikely(procfile_linewords(aptr->ff, aptr->line) < 2)) return; + + struct pid_stat *p = aptr->p; + pid_incremental_rate(stat, p->status_voluntary_ctxt_switches, str2kernel_uint_t(procfile_lineword(aptr->ff, aptr->line, 1))); +} + +void arl_callback_status_nonvoluntary_ctxt_switches(const char *name, uint32_t hash, const char *value, void *dst) { + (void)name; (void)hash; (void)value; + struct arl_callback_ptr *aptr = (struct arl_callback_ptr *)dst; + if(unlikely(procfile_linewords(aptr->ff, aptr->line) < 2)) return; + + struct pid_stat *p = aptr->p; + pid_incremental_rate(stat, p->status_nonvoluntary_ctxt_switches, str2kernel_uint_t(procfile_lineword(aptr->ff, aptr->line, 1))); +} + +static void update_proc_state_count(char proc_state) { + switch (proc_state) { + case 'S': + proc_state_count[PROC_STATUS_SLEEPING] += 1; + break; + case 'R': + proc_state_count[PROC_STATUS_RUNNING] += 1; + break; + case 'D': + proc_state_count[PROC_STATUS_SLEEPING_D] += 1; + break; + case 'Z': + proc_state_count[PROC_STATUS_ZOMBIE] += 1; + break; + case 'T': + proc_state_count[PROC_STATUS_STOPPED] += 1; + break; + default: + break; + } +} +#endif // !__FreeBSD__ + +#define MAX_PROC_PID_LIMITS 8192 +#define PROC_PID_LIMITS_MAX_OPEN_FILES_KEY "\nMax open files " + +static inline kernel_uint_t get_proc_pid_limits_limit(char *buf, const char *key, size_t key_len, kernel_uint_t def) { + char *line = strstr(buf, key); + if(!line) + return def; + + char *v = &line[key_len]; + while(isspace(*v)) v++; + + if(strcmp(v, "unlimited") == 0) + return 0; + + return str2ull(v, NULL); +} + +static inline int read_proc_pid_limits(struct pid_stat *p, void *ptr) { + (void)ptr; + +#ifdef __FreeBSD__ + return 0; +#else + static char proc_pid_limits_buffer[MAX_PROC_PID_LIMITS + 1]; + int ret = 0; + bool read_limits = false; + + errno = 0; + proc_pid_limits_buffer[0] = '\0'; + + kernel_uint_t all_fds = pid_openfds_sum(p); + if(all_fds < p->limits.max_open_files / 2 && p->io_collected_usec > p->last_limits_collected_usec && p->io_collected_usec - p->last_limits_collected_usec <= 60 * USEC_PER_SEC) { + // too frequent, we want to collect limits once per minute + ret = 1; + goto cleanup; + } + + if(unlikely(!p->limits_filename)) { + char filename[FILENAME_MAX + 1]; + snprintfz(filename, FILENAME_MAX, "%s/proc/%d/limits", netdata_configured_host_prefix, p->pid); + p->limits_filename = strdupz(filename); + } + + int fd = open(p->limits_filename, procfile_open_flags, 0666); + if(unlikely(fd == -1)) goto cleanup; + + ssize_t bytes = read(fd, proc_pid_limits_buffer, MAX_PROC_PID_LIMITS); + close(fd); + + if(bytes <= 0) + goto cleanup; + + // make it '\0' terminated + if(bytes < MAX_PROC_PID_LIMITS) + proc_pid_limits_buffer[bytes] = '\0'; + else + proc_pid_limits_buffer[MAX_PROC_PID_LIMITS - 1] = '\0'; + + p->limits.max_open_files = get_proc_pid_limits_limit(proc_pid_limits_buffer, PROC_PID_LIMITS_MAX_OPEN_FILES_KEY, sizeof(PROC_PID_LIMITS_MAX_OPEN_FILES_KEY) - 1, 0); + if(p->limits.max_open_files == 1) { + // it seems a bug in the kernel or something similar + // it sets max open files to 1 but the number of files + // the process has open are more than 1... + // https://github.com/netdata/netdata/issues/15443 + p->limits.max_open_files = 0; + ret = 1; + goto cleanup; + } + + p->last_limits_collected_usec = p->io_collected_usec; + read_limits = true; + + ret = 1; + +cleanup: + if(p->limits.max_open_files) + p->openfds_limits_percent = (NETDATA_DOUBLE)all_fds * 100.0 / (NETDATA_DOUBLE)p->limits.max_open_files; + else + p->openfds_limits_percent = 0.0; + + if(p->openfds_limits_percent > 100.0) { + if(!(p->log_thrown & PID_LOG_LIMITS_DETAIL)) { + char *line; + + if(!read_limits) { + proc_pid_limits_buffer[0] = '\0'; + line = "NOT READ"; + } + else { + line = strstr(proc_pid_limits_buffer, PROC_PID_LIMITS_MAX_OPEN_FILES_KEY); + if (line) { + line++; // skip the initial newline + + char *end = strchr(line, '\n'); + if (end) + *end = '\0'; + } + } + + netdata_log_info( + "FDS_LIMITS: PID %d (%s) is using " + "%0.2f %% of its fds limits, " + "open fds = %"PRIu64 "(" + "files = %"PRIu64 ", " + "pipes = %"PRIu64 ", " + "sockets = %"PRIu64", " + "inotifies = %"PRIu64", " + "eventfds = %"PRIu64", " + "timerfds = %"PRIu64", " + "signalfds = %"PRIu64", " + "eventpolls = %"PRIu64" " + "other = %"PRIu64" " + "), open fds limit = %"PRIu64", " + "%s, " + "original line [%s]", + p->pid, p->comm, p->openfds_limits_percent, all_fds, + p->openfds.files, + p->openfds.pipes, + p->openfds.sockets, + p->openfds.inotifies, + p->openfds.eventfds, + p->openfds.timerfds, + p->openfds.signalfds, + p->openfds.eventpolls, + p->openfds.other, + p->limits.max_open_files, + read_limits ? "and we have read the limits AFTER counting the fds" + : "but we have read the limits BEFORE counting the fds", + line); + + p->log_thrown |= PID_LOG_LIMITS_DETAIL; + } + } + else + p->log_thrown &= ~PID_LOG_LIMITS_DETAIL; + + return ret; +#endif +} + +static inline int read_proc_pid_status(struct pid_stat *p, void *ptr) { + p->status_vmsize = 0; + p->status_vmrss = 0; + p->status_vmshared = 0; + p->status_rssfile = 0; + p->status_rssshmem = 0; + p->status_vmswap = 0; + p->status_voluntary_ctxt_switches = 0; + p->status_nonvoluntary_ctxt_switches = 0; + +#ifdef __FreeBSD__ + struct kinfo_proc *proc_info = (struct kinfo_proc *)ptr; + + p->uid = proc_info->ki_uid; + p->gid = proc_info->ki_groups[0]; + p->status_vmsize = proc_info->ki_size / 1024; // in KiB + p->status_vmrss = proc_info->ki_rssize * pagesize / 1024; // in KiB + // TODO: what about shared and swap memory on FreeBSD? + return 1; +#else + (void)ptr; + + static struct arl_callback_ptr arl_ptr; + static procfile *ff = NULL; + + if(unlikely(!p->status_arl)) { + p->status_arl = arl_create("/proc/pid/status", NULL, 60); + arl_expect_custom(p->status_arl, "Uid", arl_callback_status_uid, &arl_ptr); + arl_expect_custom(p->status_arl, "Gid", arl_callback_status_gid, &arl_ptr); + arl_expect_custom(p->status_arl, "VmSize", arl_callback_status_vmsize, &arl_ptr); + arl_expect_custom(p->status_arl, "VmRSS", arl_callback_status_vmrss, &arl_ptr); + arl_expect_custom(p->status_arl, "RssFile", arl_callback_status_rssfile, &arl_ptr); + arl_expect_custom(p->status_arl, "RssShmem", arl_callback_status_rssshmem, &arl_ptr); + arl_expect_custom(p->status_arl, "VmSwap", arl_callback_status_vmswap, &arl_ptr); + arl_expect_custom(p->status_arl, "voluntary_ctxt_switches", arl_callback_status_voluntary_ctxt_switches, &arl_ptr); + arl_expect_custom(p->status_arl, "nonvoluntary_ctxt_switches", arl_callback_status_nonvoluntary_ctxt_switches, &arl_ptr); + } + + + if(unlikely(!p->status_filename)) { + char filename[FILENAME_MAX + 1]; + snprintfz(filename, FILENAME_MAX, "%s/proc/%d/status", netdata_configured_host_prefix, p->pid); + p->status_filename = strdupz(filename); + } + + ff = procfile_reopen(ff, p->status_filename, (!ff)?" \t:,-()/":NULL, PROCFILE_FLAG_NO_ERROR_ON_FILE_IO); + if(unlikely(!ff)) return 0; + + ff = procfile_readall(ff); + if(unlikely(!ff)) return 0; + + calls_counter++; + + // let ARL use this pid + arl_ptr.p = p; + arl_ptr.ff = ff; + + size_t lines = procfile_lines(ff), l; + arl_begin(p->status_arl); + + for(l = 0; l < lines ;l++) { + // debug_log("CHECK: line %zu of %zu, key '%s' = '%s'", l, lines, procfile_lineword(ff, l, 0), procfile_lineword(ff, l, 1)); + arl_ptr.line = l; + if(unlikely(arl_check(p->status_arl, + procfile_lineword(ff, l, 0), + procfile_lineword(ff, l, 1)))) break; + } + + p->status_vmshared = p->status_rssfile + p->status_rssshmem; + + // debug_log("%s uid %d, gid %d, VmSize %zu, VmRSS %zu, RssFile %zu, RssShmem %zu, shared %zu", p->comm, (int)p->uid, (int)p->gid, p->status_vmsize, p->status_vmrss, p->status_rssfile, p->status_rssshmem, p->status_vmshared); + + return 1; +#endif +} + + +// ---------------------------------------------------------------------------- + +static inline int read_proc_pid_stat(struct pid_stat *p, void *ptr) { + (void)ptr; + +#ifdef __FreeBSD__ + struct kinfo_proc *proc_info = (struct kinfo_proc *)ptr; + if (unlikely(proc_info->ki_tdflags & TDF_IDLETD)) + goto cleanup; +#else + static procfile *ff = NULL; + + if(unlikely(!p->stat_filename)) { + char filename[FILENAME_MAX + 1]; + snprintfz(filename, FILENAME_MAX, "%s/proc/%d/stat", netdata_configured_host_prefix, p->pid); + p->stat_filename = strdupz(filename); + } + + int set_quotes = (!ff)?1:0; + + ff = procfile_reopen(ff, p->stat_filename, NULL, PROCFILE_FLAG_NO_ERROR_ON_FILE_IO); + if(unlikely(!ff)) goto cleanup; + + // if(set_quotes) procfile_set_quotes(ff, "()"); + if(unlikely(set_quotes)) + procfile_set_open_close(ff, "(", ")"); + + ff = procfile_readall(ff); + if(unlikely(!ff)) goto cleanup; +#endif + + p->last_stat_collected_usec = p->stat_collected_usec; + p->stat_collected_usec = now_monotonic_usec(); + calls_counter++; + +#ifdef __FreeBSD__ + char *comm = proc_info->ki_comm; + p->ppid = proc_info->ki_ppid; +#else + // p->pid = str2pid_t(procfile_lineword(ff, 0, 0)); + char *comm = procfile_lineword(ff, 0, 1); + p->state = *(procfile_lineword(ff, 0, 2)); + p->ppid = (int32_t)str2pid_t(procfile_lineword(ff, 0, 3)); + // p->pgrp = (int32_t)str2pid_t(procfile_lineword(ff, 0, 4)); + // p->session = (int32_t)str2pid_t(procfile_lineword(ff, 0, 5)); + // p->tty_nr = (int32_t)str2pid_t(procfile_lineword(ff, 0, 6)); + // p->tpgid = (int32_t)str2pid_t(procfile_lineword(ff, 0, 7)); + // p->flags = str2uint64_t(procfile_lineword(ff, 0, 8)); +#endif + if(strcmp(p->comm, comm) != 0) { + if(unlikely(debug_enabled)) { + if(p->comm[0]) + debug_log("\tpid %d (%s) changed name to '%s'", p->pid, p->comm, comm); + else + debug_log("\tJust added %d (%s)", p->pid, comm); + } + + strncpyz(p->comm, comm, MAX_COMPARE_NAME); + + // /proc/<pid>/cmdline + if(likely(proc_pid_cmdline_is_needed)) + managed_log(p, PID_LOG_CMDLINE, read_proc_pid_cmdline(p)); + + assign_target_to_pid(p); + } + +#ifdef __FreeBSD__ + pid_incremental_rate(stat, p->minflt, (kernel_uint_t)proc_info->ki_rusage.ru_minflt); + pid_incremental_rate(stat, p->cminflt, (kernel_uint_t)proc_info->ki_rusage_ch.ru_minflt); + pid_incremental_rate(stat, p->majflt, (kernel_uint_t)proc_info->ki_rusage.ru_majflt); + pid_incremental_rate(stat, p->cmajflt, (kernel_uint_t)proc_info->ki_rusage_ch.ru_majflt); + pid_incremental_rate(stat, p->utime, (kernel_uint_t)proc_info->ki_rusage.ru_utime.tv_sec * 100 + proc_info->ki_rusage.ru_utime.tv_usec / 10000); + pid_incremental_rate(stat, p->stime, (kernel_uint_t)proc_info->ki_rusage.ru_stime.tv_sec * 100 + proc_info->ki_rusage.ru_stime.tv_usec / 10000); + pid_incremental_rate(stat, p->cutime, (kernel_uint_t)proc_info->ki_rusage_ch.ru_utime.tv_sec * 100 + proc_info->ki_rusage_ch.ru_utime.tv_usec / 10000); + pid_incremental_rate(stat, p->cstime, (kernel_uint_t)proc_info->ki_rusage_ch.ru_stime.tv_sec * 100 + proc_info->ki_rusage_ch.ru_stime.tv_usec / 10000); + + p->num_threads = proc_info->ki_numthreads; + + if(enable_guest_charts) { + enable_guest_charts = 0; + netdata_log_info("Guest charts aren't supported by FreeBSD"); + } +#else + pid_incremental_rate(stat, p->minflt, str2kernel_uint_t(procfile_lineword(ff, 0, 9))); + pid_incremental_rate(stat, p->cminflt, str2kernel_uint_t(procfile_lineword(ff, 0, 10))); + pid_incremental_rate(stat, p->majflt, str2kernel_uint_t(procfile_lineword(ff, 0, 11))); + pid_incremental_rate(stat, p->cmajflt, str2kernel_uint_t(procfile_lineword(ff, 0, 12))); + pid_incremental_rate(stat, p->utime, str2kernel_uint_t(procfile_lineword(ff, 0, 13))); + pid_incremental_rate(stat, p->stime, str2kernel_uint_t(procfile_lineword(ff, 0, 14))); + pid_incremental_rate(stat, p->cutime, str2kernel_uint_t(procfile_lineword(ff, 0, 15))); + pid_incremental_rate(stat, p->cstime, str2kernel_uint_t(procfile_lineword(ff, 0, 16))); + // p->priority = str2kernel_uint_t(procfile_lineword(ff, 0, 17)); + // p->nice = str2kernel_uint_t(procfile_lineword(ff, 0, 18)); + p->num_threads = (int32_t) str2uint32_t(procfile_lineword(ff, 0, 19), NULL); + // p->itrealvalue = str2kernel_uint_t(procfile_lineword(ff, 0, 20)); + p->collected_starttime = str2kernel_uint_t(procfile_lineword(ff, 0, 21)) / system_hz; + p->uptime = (global_uptime > p->collected_starttime)?(global_uptime - p->collected_starttime):0; + // p->vsize = str2kernel_uint_t(procfile_lineword(ff, 0, 22)); + // p->rss = str2kernel_uint_t(procfile_lineword(ff, 0, 23)); + // p->rsslim = str2kernel_uint_t(procfile_lineword(ff, 0, 24)); + // p->starcode = str2kernel_uint_t(procfile_lineword(ff, 0, 25)); + // p->endcode = str2kernel_uint_t(procfile_lineword(ff, 0, 26)); + // p->startstack = str2kernel_uint_t(procfile_lineword(ff, 0, 27)); + // p->kstkesp = str2kernel_uint_t(procfile_lineword(ff, 0, 28)); + // p->kstkeip = str2kernel_uint_t(procfile_lineword(ff, 0, 29)); + // p->signal = str2kernel_uint_t(procfile_lineword(ff, 0, 30)); + // p->blocked = str2kernel_uint_t(procfile_lineword(ff, 0, 31)); + // p->sigignore = str2kernel_uint_t(procfile_lineword(ff, 0, 32)); + // p->sigcatch = str2kernel_uint_t(procfile_lineword(ff, 0, 33)); + // p->wchan = str2kernel_uint_t(procfile_lineword(ff, 0, 34)); + // p->nswap = str2kernel_uint_t(procfile_lineword(ff, 0, 35)); + // p->cnswap = str2kernel_uint_t(procfile_lineword(ff, 0, 36)); + // p->exit_signal = str2kernel_uint_t(procfile_lineword(ff, 0, 37)); + // p->processor = str2kernel_uint_t(procfile_lineword(ff, 0, 38)); + // p->rt_priority = str2kernel_uint_t(procfile_lineword(ff, 0, 39)); + // p->policy = str2kernel_uint_t(procfile_lineword(ff, 0, 40)); + // p->delayacct_blkio_ticks = str2kernel_uint_t(procfile_lineword(ff, 0, 41)); + + if(enable_guest_charts) { + + pid_incremental_rate(stat, p->gtime, str2kernel_uint_t(procfile_lineword(ff, 0, 42))); + pid_incremental_rate(stat, p->cgtime, str2kernel_uint_t(procfile_lineword(ff, 0, 43))); + + if (show_guest_time || p->gtime || p->cgtime) { + p->utime -= (p->utime >= p->gtime) ? p->gtime : p->utime; + p->cutime -= (p->cutime >= p->cgtime) ? p->cgtime : p->cutime; + show_guest_time = 1; + } + } +#endif + + if(unlikely(debug_enabled || (p->target && p->target->debug_enabled))) + debug_log_int("READ PROC/PID/STAT: %s/proc/%d/stat, process: '%s' on target '%s' (dt=%llu) VALUES: utime=" KERNEL_UINT_FORMAT ", stime=" KERNEL_UINT_FORMAT ", cutime=" KERNEL_UINT_FORMAT ", cstime=" KERNEL_UINT_FORMAT ", minflt=" KERNEL_UINT_FORMAT ", majflt=" KERNEL_UINT_FORMAT ", cminflt=" KERNEL_UINT_FORMAT ", cmajflt=" KERNEL_UINT_FORMAT ", threads=%d", netdata_configured_host_prefix, p->pid, p->comm, (p->target)?p->target->name:"UNSET", p->stat_collected_usec - p->last_stat_collected_usec, p->utime, p->stime, p->cutime, p->cstime, p->minflt, p->majflt, p->cminflt, p->cmajflt, p->num_threads); + + if(unlikely(global_iterations_counter == 1)) { + p->minflt = 0; + p->cminflt = 0; + p->majflt = 0; + p->cmajflt = 0; + p->utime = 0; + p->stime = 0; + p->gtime = 0; + p->cutime = 0; + p->cstime = 0; + p->cgtime = 0; + } +#ifndef __FreeBSD__ + update_proc_state_count(p->state); +#endif + return 1; + +cleanup: + p->minflt = 0; + p->cminflt = 0; + p->majflt = 0; + p->cmajflt = 0; + p->utime = 0; + p->stime = 0; + p->gtime = 0; + p->cutime = 0; + p->cstime = 0; + p->cgtime = 0; + p->num_threads = 0; + // p->rss = 0; + return 0; +} + +// ---------------------------------------------------------------------------- + +static inline int read_proc_pid_io(struct pid_stat *p, void *ptr) { + (void)ptr; +#ifdef __FreeBSD__ + struct kinfo_proc *proc_info = (struct kinfo_proc *)ptr; +#else + static procfile *ff = NULL; + + if(unlikely(!p->io_filename)) { + char filename[FILENAME_MAX + 1]; + snprintfz(filename, FILENAME_MAX, "%s/proc/%d/io", netdata_configured_host_prefix, p->pid); + p->io_filename = strdupz(filename); + } + + // open the file + ff = procfile_reopen(ff, p->io_filename, NULL, PROCFILE_FLAG_NO_ERROR_ON_FILE_IO); + if(unlikely(!ff)) goto cleanup; + + ff = procfile_readall(ff); + if(unlikely(!ff)) goto cleanup; +#endif + + calls_counter++; + + p->last_io_collected_usec = p->io_collected_usec; + p->io_collected_usec = now_monotonic_usec(); + +#ifdef __FreeBSD__ + pid_incremental_rate(io, p->io_storage_bytes_read, proc_info->ki_rusage.ru_inblock); + pid_incremental_rate(io, p->io_storage_bytes_written, proc_info->ki_rusage.ru_oublock); +#else + pid_incremental_rate(io, p->io_logical_bytes_read, str2kernel_uint_t(procfile_lineword(ff, 0, 1))); + pid_incremental_rate(io, p->io_logical_bytes_written, str2kernel_uint_t(procfile_lineword(ff, 1, 1))); + pid_incremental_rate(io, p->io_read_calls, str2kernel_uint_t(procfile_lineword(ff, 2, 1))); + pid_incremental_rate(io, p->io_write_calls, str2kernel_uint_t(procfile_lineword(ff, 3, 1))); + pid_incremental_rate(io, p->io_storage_bytes_read, str2kernel_uint_t(procfile_lineword(ff, 4, 1))); + pid_incremental_rate(io, p->io_storage_bytes_written, str2kernel_uint_t(procfile_lineword(ff, 5, 1))); + pid_incremental_rate(io, p->io_cancelled_write_bytes, str2kernel_uint_t(procfile_lineword(ff, 6, 1))); +#endif + + if(unlikely(global_iterations_counter == 1)) { + p->io_logical_bytes_read = 0; + p->io_logical_bytes_written = 0; + p->io_read_calls = 0; + p->io_write_calls = 0; + p->io_storage_bytes_read = 0; + p->io_storage_bytes_written = 0; + p->io_cancelled_write_bytes = 0; + } + + return 1; + +#ifndef __FreeBSD__ +cleanup: + p->io_logical_bytes_read = 0; + p->io_logical_bytes_written = 0; + p->io_read_calls = 0; + p->io_write_calls = 0; + p->io_storage_bytes_read = 0; + p->io_storage_bytes_written = 0; + p->io_cancelled_write_bytes = 0; + return 0; +#endif +} + +#ifndef __FreeBSD__ +static inline int read_global_time() { + static char filename[FILENAME_MAX + 1] = ""; + static procfile *ff = NULL; + static kernel_uint_t utime_raw = 0, stime_raw = 0, gtime_raw = 0, gntime_raw = 0, ntime_raw = 0; + static usec_t collected_usec = 0, last_collected_usec = 0; + + if(unlikely(!ff)) { + snprintfz(filename, FILENAME_MAX, "%s/proc/stat", netdata_configured_host_prefix); + ff = procfile_open(filename, " \t:", PROCFILE_FLAG_DEFAULT); + if(unlikely(!ff)) goto cleanup; + } + + ff = procfile_readall(ff); + if(unlikely(!ff)) goto cleanup; + + last_collected_usec = collected_usec; + collected_usec = now_monotonic_usec(); + + calls_counter++; + + // temporary - it is added global_ntime; + kernel_uint_t global_ntime = 0; + + incremental_rate(global_utime, utime_raw, str2kernel_uint_t(procfile_lineword(ff, 0, 1)), collected_usec, last_collected_usec); + incremental_rate(global_ntime, ntime_raw, str2kernel_uint_t(procfile_lineword(ff, 0, 2)), collected_usec, last_collected_usec); + incremental_rate(global_stime, stime_raw, str2kernel_uint_t(procfile_lineword(ff, 0, 3)), collected_usec, last_collected_usec); + incremental_rate(global_gtime, gtime_raw, str2kernel_uint_t(procfile_lineword(ff, 0, 10)), collected_usec, last_collected_usec); + + global_utime += global_ntime; + + if(enable_guest_charts) { + // temporary - it is added global_ntime; + kernel_uint_t global_gntime = 0; + + // guest nice time, on guest time + incremental_rate(global_gntime, gntime_raw, str2kernel_uint_t(procfile_lineword(ff, 0, 11)), collected_usec, last_collected_usec); + + global_gtime += global_gntime; + + // remove guest time from user time + global_utime -= (global_utime > global_gtime) ? global_gtime : global_utime; + } + + if(unlikely(global_iterations_counter == 1)) { + global_utime = 0; + global_stime = 0; + global_gtime = 0; + } + + return 1; + +cleanup: + global_utime = 0; + global_stime = 0; + global_gtime = 0; + return 0; +} +#else +static inline int read_global_time() { + static kernel_uint_t utime_raw = 0, stime_raw = 0, ntime_raw = 0; + static usec_t collected_usec = 0, last_collected_usec = 0; + long cp_time[CPUSTATES]; + + if (unlikely(CPUSTATES != 5)) { + goto cleanup; + } else { + static int mib[2] = {0, 0}; + + if (unlikely(GETSYSCTL_SIMPLE("kern.cp_time", mib, cp_time))) { + goto cleanup; + } + } + + last_collected_usec = collected_usec; + collected_usec = now_monotonic_usec(); + + calls_counter++; + + // temporary - it is added global_ntime; + kernel_uint_t global_ntime = 0; + + incremental_rate(global_utime, utime_raw, cp_time[0] * 100LLU / system_hz, collected_usec, last_collected_usec); + incremental_rate(global_ntime, ntime_raw, cp_time[1] * 100LLU / system_hz, collected_usec, last_collected_usec); + incremental_rate(global_stime, stime_raw, cp_time[2] * 100LLU / system_hz, collected_usec, last_collected_usec); + + global_utime += global_ntime; + + if(unlikely(global_iterations_counter == 1)) { + global_utime = 0; + global_stime = 0; + global_gtime = 0; + } + + return 1; + +cleanup: + global_utime = 0; + global_stime = 0; + global_gtime = 0; + return 0; +} +#endif /* !__FreeBSD__ */ + +// ---------------------------------------------------------------------------- + +int file_descriptor_compare(void* a, void* b) { +#ifdef NETDATA_INTERNAL_CHECKS + if(((struct file_descriptor *)a)->magic != 0x0BADCAFE || ((struct file_descriptor *)b)->magic != 0x0BADCAFE) + netdata_log_error("Corrupted index data detected. Please report this."); +#endif /* NETDATA_INTERNAL_CHECKS */ + + if(((struct file_descriptor *)a)->hash < ((struct file_descriptor *)b)->hash) + return -1; + + else if(((struct file_descriptor *)a)->hash > ((struct file_descriptor *)b)->hash) + return 1; + + else + return strcmp(((struct file_descriptor *)a)->name, ((struct file_descriptor *)b)->name); +} + +// int file_descriptor_iterator(avl_t *a) { if(a) {}; return 0; } + +avl_tree_type all_files_index = { + NULL, + file_descriptor_compare +}; + +static struct file_descriptor *file_descriptor_find(const char *name, uint32_t hash) { + struct file_descriptor tmp; + tmp.hash = (hash)?hash:simple_hash(name); + tmp.name = name; + tmp.count = 0; + tmp.pos = 0; +#ifdef NETDATA_INTERNAL_CHECKS + tmp.magic = 0x0BADCAFE; +#endif /* NETDATA_INTERNAL_CHECKS */ + + return (struct file_descriptor *)avl_search(&all_files_index, (avl_t *) &tmp); +} + +#define file_descriptor_add(fd) avl_insert(&all_files_index, (avl_t *)(fd)) +#define file_descriptor_remove(fd) avl_remove(&all_files_index, (avl_t *)(fd)) + +// ---------------------------------------------------------------------------- + +static inline void file_descriptor_not_used(int id) +{ + if(id > 0 && id < all_files_size) { + +#ifdef NETDATA_INTERNAL_CHECKS + if(all_files[id].magic != 0x0BADCAFE) { + netdata_log_error("Ignoring request to remove empty file id %d.", id); + return; + } +#endif /* NETDATA_INTERNAL_CHECKS */ + + debug_log("decreasing slot %d (count = %d).", id, all_files[id].count); + + if(all_files[id].count > 0) { + all_files[id].count--; + + if(!all_files[id].count) { + debug_log(" >> slot %d is empty.", id); + + if(unlikely(file_descriptor_remove(&all_files[id]) != (void *)&all_files[id])) + netdata_log_error("INTERNAL ERROR: removal of unused fd from index, removed a different fd"); + +#ifdef NETDATA_INTERNAL_CHECKS + all_files[id].magic = 0x00000000; +#endif /* NETDATA_INTERNAL_CHECKS */ + all_files_len--; + } + } + else + netdata_log_error("Request to decrease counter of fd %d (%s), while the use counter is 0", + id, + all_files[id].name); + } + else + netdata_log_error("Request to decrease counter of fd %d, which is outside the array size (1 to %d)", + id, + all_files_size); +} + +static inline void all_files_grow() { + void *old = all_files; + int i; + + // there is no empty slot + debug_log("extending fd array to %d entries", all_files_size + FILE_DESCRIPTORS_INCREASE_STEP); + + all_files = reallocz(all_files, (all_files_size + FILE_DESCRIPTORS_INCREASE_STEP) * sizeof(struct file_descriptor)); + + // if the address changed, we have to rebuild the index + // since all pointers are now invalid + + if(unlikely(old && old != (void *)all_files)) { + debug_log(" >> re-indexing."); + + all_files_index.root = NULL; + for(i = 0; i < all_files_size; i++) { + if(!all_files[i].count) continue; + if(unlikely(file_descriptor_add(&all_files[i]) != (void *)&all_files[i])) + netdata_log_error("INTERNAL ERROR: duplicate indexing of fd during realloc."); + } + + debug_log(" >> re-indexing done."); + } + + // initialize the newly added entries + + for(i = all_files_size; i < (all_files_size + FILE_DESCRIPTORS_INCREASE_STEP); i++) { + all_files[i].count = 0; + all_files[i].name = NULL; +#ifdef NETDATA_INTERNAL_CHECKS + all_files[i].magic = 0x00000000; +#endif /* NETDATA_INTERNAL_CHECKS */ + all_files[i].pos = i; + } + + if(unlikely(!all_files_size)) all_files_len = 1; + all_files_size += FILE_DESCRIPTORS_INCREASE_STEP; +} + +static inline int file_descriptor_set_on_empty_slot(const char *name, uint32_t hash, FD_FILETYPE type) { + // check we have enough memory to add it + if(!all_files || all_files_len == all_files_size) + all_files_grow(); + + debug_log(" >> searching for empty slot."); + + // search for an empty slot + + static int last_pos = 0; + int i, c; + for(i = 0, c = last_pos ; i < all_files_size ; i++, c++) { + if(c >= all_files_size) c = 0; + if(c == 0) continue; + + if(!all_files[c].count) { + debug_log(" >> Examining slot %d.", c); + +#ifdef NETDATA_INTERNAL_CHECKS + if(all_files[c].magic == 0x0BADCAFE && all_files[c].name && file_descriptor_find(all_files[c].name, all_files[c].hash)) + netdata_log_error("fd on position %d is not cleared properly. It still has %s in it.", c, all_files[c].name); +#endif /* NETDATA_INTERNAL_CHECKS */ + + debug_log(" >> %s fd position %d for %s (last name: %s)", all_files[c].name?"re-using":"using", c, name, all_files[c].name); + + freez((void *)all_files[c].name); + all_files[c].name = NULL; + last_pos = c; + break; + } + } + + all_files_len++; + + if(i == all_files_size) { + fatal("We should find an empty slot, but there isn't any"); + exit(1); + } + // else we have an empty slot in 'c' + + debug_log(" >> updating slot %d.", c); + + all_files[c].name = strdupz(name); + all_files[c].hash = hash; + all_files[c].type = type; + all_files[c].pos = c; + all_files[c].count = 1; +#ifdef NETDATA_INTERNAL_CHECKS + all_files[c].magic = 0x0BADCAFE; +#endif /* NETDATA_INTERNAL_CHECKS */ + if(unlikely(file_descriptor_add(&all_files[c]) != (void *)&all_files[c])) + netdata_log_error("INTERNAL ERROR: duplicate indexing of fd."); + + debug_log("using fd position %d (name: %s)", c, all_files[c].name); + + return c; +} + +static inline int file_descriptor_find_or_add(const char *name, uint32_t hash) { + if(unlikely(!hash)) + hash = simple_hash(name); + + debug_log("adding or finding name '%s' with hash %u", name, hash); + + struct file_descriptor *fd = file_descriptor_find(name, hash); + if(fd) { + // found + debug_log(" >> found on slot %d", fd->pos); + + fd->count++; + return fd->pos; + } + // not found + + FD_FILETYPE type; + if(likely(name[0] == '/')) type = FILETYPE_FILE; + else if(likely(strncmp(name, "pipe:", 5) == 0)) type = FILETYPE_PIPE; + else if(likely(strncmp(name, "socket:", 7) == 0)) type = FILETYPE_SOCKET; + else if(likely(strncmp(name, "anon_inode:", 11) == 0)) { + const char *t = &name[11]; + + if(strcmp(t, "inotify") == 0) type = FILETYPE_INOTIFY; + else if(strcmp(t, "[eventfd]") == 0) type = FILETYPE_EVENTFD; + else if(strcmp(t, "[eventpoll]") == 0) type = FILETYPE_EVENTPOLL; + else if(strcmp(t, "[timerfd]") == 0) type = FILETYPE_TIMERFD; + else if(strcmp(t, "[signalfd]") == 0) type = FILETYPE_SIGNALFD; + else { + debug_log("UNKNOWN anonymous inode: %s", name); + type = FILETYPE_OTHER; + } + } + else if(likely(strcmp(name, "inotify") == 0)) type = FILETYPE_INOTIFY; + else { + debug_log("UNKNOWN linkname: %s", name); + type = FILETYPE_OTHER; + } + + return file_descriptor_set_on_empty_slot(name, hash, type); +} + +static inline void clear_pid_fd(struct pid_fd *pfd) { + pfd->fd = 0; + + #ifndef __FreeBSD__ + pfd->link_hash = 0; + pfd->inode = 0; + pfd->cache_iterations_counter = 0; + pfd->cache_iterations_reset = 0; +#endif +} + +static inline void make_all_pid_fds_negative(struct pid_stat *p) { + struct pid_fd *pfd = p->fds, *pfdend = &p->fds[p->fds_size]; + while(pfd < pfdend) { + pfd->fd = -(pfd->fd); + pfd++; + } +} + +static inline void cleanup_negative_pid_fds(struct pid_stat *p) { + struct pid_fd *pfd = p->fds, *pfdend = &p->fds[p->fds_size]; + + while(pfd < pfdend) { + int fd = pfd->fd; + + if(unlikely(fd < 0)) { + file_descriptor_not_used(-(fd)); + clear_pid_fd(pfd); + } + + pfd++; + } +} + +static inline void init_pid_fds(struct pid_stat *p, size_t first, size_t size) { + struct pid_fd *pfd = &p->fds[first], *pfdend = &p->fds[first + size]; + + while(pfd < pfdend) { +#ifndef __FreeBSD__ + pfd->filename = NULL; +#endif + clear_pid_fd(pfd); + pfd++; + } +} + +static inline int read_pid_file_descriptors(struct pid_stat *p, void *ptr) { + (void)ptr; +#ifdef __FreeBSD__ + int mib[4]; + size_t size; + struct kinfo_file *fds; + static char *fdsbuf; + char *bfdsbuf, *efdsbuf; + char fdsname[FILENAME_MAX + 1]; +#define SHM_FORMAT_LEN 31 // format: 21 + size: 10 + char shm_name[FILENAME_MAX - SHM_FORMAT_LEN + 1]; + + // we make all pid fds negative, so that + // we can detect unused file descriptors + // at the end, to free them + make_all_pid_fds_negative(p); + + mib[0] = CTL_KERN; + mib[1] = KERN_PROC; + mib[2] = KERN_PROC_FILEDESC; + mib[3] = p->pid; + + if (unlikely(sysctl(mib, 4, NULL, &size, NULL, 0))) { + netdata_log_error("sysctl error: Can't get file descriptors data size for pid %d", p->pid); + return 0; + } + if (likely(size > 0)) + fdsbuf = reallocz(fdsbuf, size); + if (unlikely(sysctl(mib, 4, fdsbuf, &size, NULL, 0))) { + netdata_log_error("sysctl error: Can't get file descriptors data for pid %d", p->pid); + return 0; + } + + bfdsbuf = fdsbuf; + efdsbuf = fdsbuf + size; + while (bfdsbuf < efdsbuf) { + fds = (struct kinfo_file *)(uintptr_t)bfdsbuf; + if (unlikely(fds->kf_structsize == 0)) + break; + + // do not process file descriptors for current working directory, root directory, + // jail directory, ktrace vnode, text vnode and controlling terminal + if (unlikely(fds->kf_fd < 0)) { + bfdsbuf += fds->kf_structsize; + continue; + } + + // get file descriptors array index + size_t fdid = fds->kf_fd; + + // check if the fds array is small + if (unlikely(fdid >= p->fds_size)) { + // it is small, extend it + + debug_log("extending fd memory slots for %s from %d to %d", p->comm, p->fds_size, fdid + MAX_SPARE_FDS); + + p->fds = reallocz(p->fds, (fdid + MAX_SPARE_FDS) * sizeof(struct pid_fd)); + + // and initialize it + init_pid_fds(p, p->fds_size, (fdid + MAX_SPARE_FDS) - p->fds_size); + p->fds_size = fdid + MAX_SPARE_FDS; + } + + if (unlikely(p->fds[fdid].fd == 0)) { + // we don't know this fd, get it + + switch (fds->kf_type) { + case KF_TYPE_FIFO: + case KF_TYPE_VNODE: + if (unlikely(!fds->kf_path[0])) { + sprintf(fdsname, "other: inode: %lu", fds->kf_un.kf_file.kf_file_fileid); + break; + } + sprintf(fdsname, "%s", fds->kf_path); + break; + case KF_TYPE_SOCKET: + switch (fds->kf_sock_domain) { + case AF_INET: + case AF_INET6: + if (fds->kf_sock_protocol == IPPROTO_TCP) + sprintf(fdsname, "socket: %d %lx", fds->kf_sock_protocol, fds->kf_un.kf_sock.kf_sock_inpcb); + else + sprintf(fdsname, "socket: %d %lx", fds->kf_sock_protocol, fds->kf_un.kf_sock.kf_sock_pcb); + break; + case AF_UNIX: + /* print address of pcb and connected pcb */ + sprintf(fdsname, "socket: %lx %lx", fds->kf_un.kf_sock.kf_sock_pcb, fds->kf_un.kf_sock.kf_sock_unpconn); + break; + default: + /* print protocol number and socket address */ +#if __FreeBSD_version < 1200031 + sprintf(fdsname, "socket: other: %d %s %s", fds->kf_sock_protocol, fds->kf_sa_local.__ss_pad1, fds->kf_sa_local.__ss_pad2); +#else + sprintf(fdsname, "socket: other: %d %s %s", fds->kf_sock_protocol, fds->kf_un.kf_sock.kf_sa_local.__ss_pad1, fds->kf_un.kf_sock.kf_sa_local.__ss_pad2); +#endif + } + break; + case KF_TYPE_PIPE: + sprintf(fdsname, "pipe: %lu %lu", fds->kf_un.kf_pipe.kf_pipe_addr, fds->kf_un.kf_pipe.kf_pipe_peer); + break; + case KF_TYPE_PTS: +#if __FreeBSD_version < 1200031 + sprintf(fdsname, "other: pts: %u", fds->kf_un.kf_pts.kf_pts_dev); +#else + sprintf(fdsname, "other: pts: %lu", fds->kf_un.kf_pts.kf_pts_dev); +#endif + break; + case KF_TYPE_SHM: + strncpyz(shm_name, fds->kf_path, FILENAME_MAX - SHM_FORMAT_LEN); + sprintf(fdsname, "other: shm: %s size: %lu", shm_name, fds->kf_un.kf_file.kf_file_size); + break; + case KF_TYPE_SEM: + sprintf(fdsname, "other: sem: %u", fds->kf_un.kf_sem.kf_sem_value); + break; + default: + sprintf(fdsname, "other: pid: %d fd: %d", fds->kf_un.kf_proc.kf_pid, fds->kf_fd); + } + + // if another process already has this, we will get + // the same id + p->fds[fdid].fd = file_descriptor_find_or_add(fdsname, 0); + } + + // else make it positive again, we need it + // of course, the actual file may have changed + + else + p->fds[fdid].fd = -p->fds[fdid].fd; + + bfdsbuf += fds->kf_structsize; + } +#else + if(unlikely(!p->fds_dirname)) { + char dirname[FILENAME_MAX+1]; + snprintfz(dirname, FILENAME_MAX, "%s/proc/%d/fd", netdata_configured_host_prefix, p->pid); + p->fds_dirname = strdupz(dirname); + } + + DIR *fds = opendir(p->fds_dirname); + if(unlikely(!fds)) return 0; + + struct dirent *de; + char linkname[FILENAME_MAX + 1]; + + // we make all pid fds negative, so that + // we can detect unused file descriptors + // at the end, to free them + make_all_pid_fds_negative(p); + + while((de = readdir(fds))) { + // we need only files with numeric names + + if(unlikely(de->d_name[0] < '0' || de->d_name[0] > '9')) + continue; + + // get its number + int fdid = (int) str2l(de->d_name); + if(unlikely(fdid < 0)) continue; + + // check if the fds array is small + if(unlikely((size_t)fdid >= p->fds_size)) { + // it is small, extend it + + debug_log("extending fd memory slots for %s from %d to %d" + , p->comm + , p->fds_size + , fdid + MAX_SPARE_FDS + ); + + p->fds = reallocz(p->fds, (fdid + MAX_SPARE_FDS) * sizeof(struct pid_fd)); + + // and initialize it + init_pid_fds(p, p->fds_size, (fdid + MAX_SPARE_FDS) - p->fds_size); + p->fds_size = (size_t)fdid + MAX_SPARE_FDS; + } + + if(unlikely(p->fds[fdid].fd < 0 && de->d_ino != p->fds[fdid].inode)) { + // inodes do not match, clear the previous entry + inodes_changed_counter++; + file_descriptor_not_used(-p->fds[fdid].fd); + clear_pid_fd(&p->fds[fdid]); + } + + if(p->fds[fdid].fd < 0 && p->fds[fdid].cache_iterations_counter > 0) { + p->fds[fdid].fd = -p->fds[fdid].fd; + p->fds[fdid].cache_iterations_counter--; + continue; + } + + if(unlikely(!p->fds[fdid].filename)) { + filenames_allocated_counter++; + char fdname[FILENAME_MAX + 1]; + snprintfz(fdname, FILENAME_MAX, "%s/proc/%d/fd/%s", netdata_configured_host_prefix, p->pid, de->d_name); + p->fds[fdid].filename = strdupz(fdname); + } + + file_counter++; + ssize_t l = readlink(p->fds[fdid].filename, linkname, FILENAME_MAX); + if(unlikely(l == -1)) { + // cannot read the link + + if(debug_enabled || (p->target && p->target->debug_enabled)) + netdata_log_error("Cannot read link %s", p->fds[fdid].filename); + + if(unlikely(p->fds[fdid].fd < 0)) { + file_descriptor_not_used(-p->fds[fdid].fd); + clear_pid_fd(&p->fds[fdid]); + } + + continue; + } + else + linkname[l] = '\0'; + + uint32_t link_hash = simple_hash(linkname); + + if(unlikely(p->fds[fdid].fd < 0 && p->fds[fdid].link_hash != link_hash)) { + // the link changed + links_changed_counter++; + file_descriptor_not_used(-p->fds[fdid].fd); + clear_pid_fd(&p->fds[fdid]); + } + + if(unlikely(p->fds[fdid].fd == 0)) { + // we don't know this fd, get it + + // if another process already has this, we will get + // the same id + p->fds[fdid].fd = file_descriptor_find_or_add(linkname, link_hash); + p->fds[fdid].inode = de->d_ino; + p->fds[fdid].link_hash = link_hash; + } + else { + // else make it positive again, we need it + p->fds[fdid].fd = -p->fds[fdid].fd; + } + + // caching control + // without this we read all the files on every iteration + if(max_fds_cache_seconds > 0) { + size_t spread = ((size_t)max_fds_cache_seconds > 10) ? 10 : (size_t)max_fds_cache_seconds; + + // cache it for a few iterations + size_t max = ((size_t) max_fds_cache_seconds + (fdid % spread)) / (size_t) update_every; + p->fds[fdid].cache_iterations_reset++; + + if(unlikely(p->fds[fdid].cache_iterations_reset % spread == (size_t) fdid % spread)) + p->fds[fdid].cache_iterations_reset++; + + if(unlikely((fdid <= 2 && p->fds[fdid].cache_iterations_reset > 5) || + p->fds[fdid].cache_iterations_reset > max)) { + // for stdin, stdout, stderr (fdid <= 2) we have checked a few times, or if it goes above the max, goto max + p->fds[fdid].cache_iterations_reset = max; + } + + p->fds[fdid].cache_iterations_counter = p->fds[fdid].cache_iterations_reset; + } + } + + closedir(fds); +#endif + cleanup_negative_pid_fds(p); + + return 1; +} + +// ---------------------------------------------------------------------------- + +static inline int debug_print_process_and_parents(struct pid_stat *p, usec_t time) { + char *prefix = "\\_ "; + int indent = 0; + + if(p->parent) + indent = debug_print_process_and_parents(p->parent, p->stat_collected_usec); + else + prefix = " > "; + + char buffer[indent + 1]; + int i; + + for(i = 0; i < indent ;i++) buffer[i] = ' '; + buffer[i] = '\0'; + + fprintf(stderr, " %s %s%s (%d %s %"PRIu64"" + , buffer + , prefix + , p->comm + , p->pid + , p->updated?"running":"exited" + , p->stat_collected_usec - time + ); + + if(p->utime) fprintf(stderr, " utime=" KERNEL_UINT_FORMAT, p->utime); + if(p->stime) fprintf(stderr, " stime=" KERNEL_UINT_FORMAT, p->stime); + if(p->gtime) fprintf(stderr, " gtime=" KERNEL_UINT_FORMAT, p->gtime); + if(p->cutime) fprintf(stderr, " cutime=" KERNEL_UINT_FORMAT, p->cutime); + if(p->cstime) fprintf(stderr, " cstime=" KERNEL_UINT_FORMAT, p->cstime); + if(p->cgtime) fprintf(stderr, " cgtime=" KERNEL_UINT_FORMAT, p->cgtime); + if(p->minflt) fprintf(stderr, " minflt=" KERNEL_UINT_FORMAT, p->minflt); + if(p->cminflt) fprintf(stderr, " cminflt=" KERNEL_UINT_FORMAT, p->cminflt); + if(p->majflt) fprintf(stderr, " majflt=" KERNEL_UINT_FORMAT, p->majflt); + if(p->cmajflt) fprintf(stderr, " cmajflt=" KERNEL_UINT_FORMAT, p->cmajflt); + fprintf(stderr, ")\n"); + + return indent + 1; +} + +static inline void debug_print_process_tree(struct pid_stat *p, char *msg __maybe_unused) { + debug_log("%s: process %s (%d, %s) with parents:", msg, p->comm, p->pid, p->updated?"running":"exited"); + debug_print_process_and_parents(p, p->stat_collected_usec); +} + +static inline void debug_find_lost_child(struct pid_stat *pe, kernel_uint_t lost, int type) { + int found = 0; + struct pid_stat *p = NULL; + + for(p = root_of_pids; p ; p = p->next) { + if(p == pe) continue; + + switch(type) { + case 1: + if(p->cminflt > lost) { + fprintf(stderr, " > process %d (%s) could use the lost exited child minflt " KERNEL_UINT_FORMAT " of process %d (%s)\n", p->pid, p->comm, lost, pe->pid, pe->comm); + found++; + } + break; + + case 2: + if(p->cmajflt > lost) { + fprintf(stderr, " > process %d (%s) could use the lost exited child majflt " KERNEL_UINT_FORMAT " of process %d (%s)\n", p->pid, p->comm, lost, pe->pid, pe->comm); + found++; + } + break; + + case 3: + if(p->cutime > lost) { + fprintf(stderr, " > process %d (%s) could use the lost exited child utime " KERNEL_UINT_FORMAT " of process %d (%s)\n", p->pid, p->comm, lost, pe->pid, pe->comm); + found++; + } + break; + + case 4: + if(p->cstime > lost) { + fprintf(stderr, " > process %d (%s) could use the lost exited child stime " KERNEL_UINT_FORMAT " of process %d (%s)\n", p->pid, p->comm, lost, pe->pid, pe->comm); + found++; + } + break; + + case 5: + if(p->cgtime > lost) { + fprintf(stderr, " > process %d (%s) could use the lost exited child gtime " KERNEL_UINT_FORMAT " of process %d (%s)\n", p->pid, p->comm, lost, pe->pid, pe->comm); + found++; + } + break; + } + } + + if(!found) { + switch(type) { + case 1: + fprintf(stderr, " > cannot find any process to use the lost exited child minflt " KERNEL_UINT_FORMAT " of process %d (%s)\n", lost, pe->pid, pe->comm); + break; + + case 2: + fprintf(stderr, " > cannot find any process to use the lost exited child majflt " KERNEL_UINT_FORMAT " of process %d (%s)\n", lost, pe->pid, pe->comm); + break; + + case 3: + fprintf(stderr, " > cannot find any process to use the lost exited child utime " KERNEL_UINT_FORMAT " of process %d (%s)\n", lost, pe->pid, pe->comm); + break; + + case 4: + fprintf(stderr, " > cannot find any process to use the lost exited child stime " KERNEL_UINT_FORMAT " of process %d (%s)\n", lost, pe->pid, pe->comm); + break; + + case 5: + fprintf(stderr, " > cannot find any process to use the lost exited child gtime " KERNEL_UINT_FORMAT " of process %d (%s)\n", lost, pe->pid, pe->comm); + break; + } + } +} + +static inline kernel_uint_t remove_exited_child_from_parent(kernel_uint_t *field, kernel_uint_t *pfield) { + kernel_uint_t absorbed = 0; + + if(*field > *pfield) { + absorbed += *pfield; + *field -= *pfield; + *pfield = 0; + } + else { + absorbed += *field; + *pfield -= *field; + *field = 0; + } + + return absorbed; +} + +static inline void process_exited_processes() { + struct pid_stat *p; + + for(p = root_of_pids; p ; p = p->next) { + if(p->updated || !p->stat_collected_usec) + continue; + + kernel_uint_t utime = (p->utime_raw + p->cutime_raw) * (USEC_PER_SEC * RATES_DETAIL) / (p->stat_collected_usec - p->last_stat_collected_usec); + kernel_uint_t stime = (p->stime_raw + p->cstime_raw) * (USEC_PER_SEC * RATES_DETAIL) / (p->stat_collected_usec - p->last_stat_collected_usec); + kernel_uint_t gtime = (p->gtime_raw + p->cgtime_raw) * (USEC_PER_SEC * RATES_DETAIL) / (p->stat_collected_usec - p->last_stat_collected_usec); + kernel_uint_t minflt = (p->minflt_raw + p->cminflt_raw) * (USEC_PER_SEC * RATES_DETAIL) / (p->stat_collected_usec - p->last_stat_collected_usec); + kernel_uint_t majflt = (p->majflt_raw + p->cmajflt_raw) * (USEC_PER_SEC * RATES_DETAIL) / (p->stat_collected_usec - p->last_stat_collected_usec); + + if(utime + stime + gtime + minflt + majflt == 0) + continue; + + if(unlikely(debug_enabled)) { + debug_log("Absorb %s (%d %s total resources: utime=" KERNEL_UINT_FORMAT " stime=" KERNEL_UINT_FORMAT " gtime=" KERNEL_UINT_FORMAT " minflt=" KERNEL_UINT_FORMAT " majflt=" KERNEL_UINT_FORMAT ")" + , p->comm + , p->pid + , p->updated?"running":"exited" + , utime + , stime + , gtime + , minflt + , majflt + ); + debug_print_process_tree(p, "Searching parents"); + } + + struct pid_stat *pp; + for(pp = p->parent; pp ; pp = pp->parent) { + if(!pp->updated) continue; + + kernel_uint_t absorbed; + absorbed = remove_exited_child_from_parent(&utime, &pp->cutime); + if(unlikely(debug_enabled && absorbed)) + debug_log(" > process %s (%d %s) absorbed " KERNEL_UINT_FORMAT " utime (remaining: " KERNEL_UINT_FORMAT ")", pp->comm, pp->pid, pp->updated?"running":"exited", absorbed, utime); + + absorbed = remove_exited_child_from_parent(&stime, &pp->cstime); + if(unlikely(debug_enabled && absorbed)) + debug_log(" > process %s (%d %s) absorbed " KERNEL_UINT_FORMAT " stime (remaining: " KERNEL_UINT_FORMAT ")", pp->comm, pp->pid, pp->updated?"running":"exited", absorbed, stime); + + absorbed = remove_exited_child_from_parent(>ime, &pp->cgtime); + if(unlikely(debug_enabled && absorbed)) + debug_log(" > process %s (%d %s) absorbed " KERNEL_UINT_FORMAT " gtime (remaining: " KERNEL_UINT_FORMAT ")", pp->comm, pp->pid, pp->updated?"running":"exited", absorbed, gtime); + + absorbed = remove_exited_child_from_parent(&minflt, &pp->cminflt); + if(unlikely(debug_enabled && absorbed)) + debug_log(" > process %s (%d %s) absorbed " KERNEL_UINT_FORMAT " minflt (remaining: " KERNEL_UINT_FORMAT ")", pp->comm, pp->pid, pp->updated?"running":"exited", absorbed, minflt); + + absorbed = remove_exited_child_from_parent(&majflt, &pp->cmajflt); + if(unlikely(debug_enabled && absorbed)) + debug_log(" > process %s (%d %s) absorbed " KERNEL_UINT_FORMAT " majflt (remaining: " KERNEL_UINT_FORMAT ")", pp->comm, pp->pid, pp->updated?"running":"exited", absorbed, majflt); + } + + if(unlikely(utime + stime + gtime + minflt + majflt > 0)) { + if(unlikely(debug_enabled)) { + if(utime) debug_find_lost_child(p, utime, 3); + if(stime) debug_find_lost_child(p, stime, 4); + if(gtime) debug_find_lost_child(p, gtime, 5); + if(minflt) debug_find_lost_child(p, minflt, 1); + if(majflt) debug_find_lost_child(p, majflt, 2); + } + + p->keep = true; + + debug_log(" > remaining resources - KEEP - for another loop: %s (%d %s total resources: utime=" KERNEL_UINT_FORMAT " stime=" KERNEL_UINT_FORMAT " gtime=" KERNEL_UINT_FORMAT " minflt=" KERNEL_UINT_FORMAT " majflt=" KERNEL_UINT_FORMAT ")" + , p->comm + , p->pid + , p->updated?"running":"exited" + , utime + , stime + , gtime + , minflt + , majflt + ); + + for(pp = p->parent; pp ; pp = pp->parent) { + if(pp->updated) break; + pp->keep = true; + + debug_log(" > - KEEP - parent for another loop: %s (%d %s)" + , pp->comm + , pp->pid + , pp->updated?"running":"exited" + ); + } + + p->utime_raw = utime * (p->stat_collected_usec - p->last_stat_collected_usec) / (USEC_PER_SEC * RATES_DETAIL); + p->stime_raw = stime * (p->stat_collected_usec - p->last_stat_collected_usec) / (USEC_PER_SEC * RATES_DETAIL); + p->gtime_raw = gtime * (p->stat_collected_usec - p->last_stat_collected_usec) / (USEC_PER_SEC * RATES_DETAIL); + p->minflt_raw = minflt * (p->stat_collected_usec - p->last_stat_collected_usec) / (USEC_PER_SEC * RATES_DETAIL); + p->majflt_raw = majflt * (p->stat_collected_usec - p->last_stat_collected_usec) / (USEC_PER_SEC * RATES_DETAIL); + p->cutime_raw = p->cstime_raw = p->cgtime_raw = p->cminflt_raw = p->cmajflt_raw = 0; + + debug_log(" "); + } + else + debug_log(" > totally absorbed - DONE - %s (%d %s)" + , p->comm + , p->pid + , p->updated?"running":"exited" + ); + } +} + +static inline void link_all_processes_to_their_parents(void) { + struct pid_stat *p, *pp; + + // link all children to their parents + // and update children count on parents + for(p = root_of_pids; p ; p = p->next) { + // for each process found + + p->sortlist = 0; + p->parent = NULL; + + if(unlikely(!p->ppid)) { + //unnecessary code from apps_plugin.c + //p->parent = NULL; + continue; + } + + pp = all_pids[p->ppid]; + if(likely(pp)) { + p->parent = pp; + pp->children_count++; + + if(unlikely(debug_enabled || (p->target && p->target->debug_enabled))) + debug_log_int("child %d (%s, %s) on target '%s' has parent %d (%s, %s). Parent: utime=" KERNEL_UINT_FORMAT ", stime=" KERNEL_UINT_FORMAT ", gtime=" KERNEL_UINT_FORMAT ", minflt=" KERNEL_UINT_FORMAT ", majflt=" KERNEL_UINT_FORMAT ", cutime=" KERNEL_UINT_FORMAT ", cstime=" KERNEL_UINT_FORMAT ", cgtime=" KERNEL_UINT_FORMAT ", cminflt=" KERNEL_UINT_FORMAT ", cmajflt=" KERNEL_UINT_FORMAT "", p->pid, p->comm, p->updated?"running":"exited", (p->target)?p->target->name:"UNSET", pp->pid, pp->comm, pp->updated?"running":"exited", pp->utime, pp->stime, pp->gtime, pp->minflt, pp->majflt, pp->cutime, pp->cstime, pp->cgtime, pp->cminflt, pp->cmajflt); + } + else { + p->parent = NULL; + netdata_log_error("pid %d %s states parent %d, but the later does not exist.", p->pid, p->comm, p->ppid); + } + } +} + +// ---------------------------------------------------------------------------- + +// 1. read all files in /proc +// 2. for each numeric directory: +// i. read /proc/pid/stat +// ii. read /proc/pid/status +// iii. read /proc/pid/io (requires root access) +// iii. read the entries in directory /proc/pid/fd (requires root access) +// for each entry: +// a. find or create a struct file_descriptor +// b. cleanup any old/unused file_descriptors + +// after all these, some pids may be linked to targets, while others may not + +// in case of errors, only 1 every 1000 errors is printed +// to avoid filling up all disk space +// if debug is enabled, all errors are printed + +#if (ALL_PIDS_ARE_READ_INSTANTLY == 0) +static int compar_pid(const void *pid1, const void *pid2) { + + struct pid_stat *p1 = all_pids[*((pid_t *)pid1)]; + struct pid_stat *p2 = all_pids[*((pid_t *)pid2)]; + + if(p1->sortlist > p2->sortlist) + return -1; + else + return 1; +} +#endif + +static inline int collect_data_for_pid(pid_t pid, void *ptr) { + if(unlikely(pid < 0 || pid > pid_max)) { + netdata_log_error("Invalid pid %d read (expected %d to %d). Ignoring process.", pid, 0, pid_max); + return 0; + } + + struct pid_stat *p = get_pid_entry(pid); + if(unlikely(!p || p->read)) return 0; + p->read = true; + + // debug_log("Reading process %d (%s), sortlist %d", p->pid, p->comm, p->sortlist); + + // -------------------------------------------------------------------- + // /proc/<pid>/stat + + if(unlikely(!managed_log(p, PID_LOG_STAT, read_proc_pid_stat(p, ptr)))) + // there is no reason to proceed if we cannot get its status + return 0; + + // check its parent pid + if(unlikely(p->ppid < 0 || p->ppid > pid_max)) { + netdata_log_error("Pid %d (command '%s') states invalid parent pid %d. Using 0.", pid, p->comm, p->ppid); + p->ppid = 0; + } + + // -------------------------------------------------------------------- + // /proc/<pid>/io + + managed_log(p, PID_LOG_IO, read_proc_pid_io(p, ptr)); + + // -------------------------------------------------------------------- + // /proc/<pid>/status + + if(unlikely(!managed_log(p, PID_LOG_STATUS, read_proc_pid_status(p, ptr)))) + // there is no reason to proceed if we cannot get its status + return 0; + + // -------------------------------------------------------------------- + // /proc/<pid>/fd + + if(enable_file_charts) { + managed_log(p, PID_LOG_FDS, read_pid_file_descriptors(p, ptr)); + managed_log(p, PID_LOG_LIMITS, read_proc_pid_limits(p, ptr)); + } + + // -------------------------------------------------------------------- + // done! + + if(unlikely(debug_enabled && include_exited_childs && all_pids_count && p->ppid && all_pids[p->ppid] && !all_pids[p->ppid]->read)) + debug_log("Read process %d (%s) sortlisted %d, but its parent %d (%s) sortlisted %d, is not read", p->pid, p->comm, p->sortlist, all_pids[p->ppid]->pid, all_pids[p->ppid]->comm, all_pids[p->ppid]->sortlist); + + // mark it as updated + p->updated = true; + p->keep = false; + p->keeploops = 0; + + return 1; +} + +static int collect_data_for_all_processes(void) { + struct pid_stat *p = NULL; + +#ifndef __FreeBSD__ + // clear process state counter + memset(proc_state_count, 0, sizeof proc_state_count); +#else + int i, procnum; + + static size_t procbase_size = 0; + static struct kinfo_proc *procbase = NULL; + + size_t new_procbase_size; + + int mib[3] = { CTL_KERN, KERN_PROC, KERN_PROC_PROC }; + if (unlikely(sysctl(mib, 3, NULL, &new_procbase_size, NULL, 0))) { + netdata_log_error("sysctl error: Can't get processes data size"); + return 0; + } + + // give it some air for processes that may be started + // during this little time. + new_procbase_size += 100 * sizeof(struct kinfo_proc); + + // increase the buffer if needed + if(new_procbase_size > procbase_size) { + procbase_size = new_procbase_size; + procbase = reallocz(procbase, procbase_size); + } + + // sysctl() gets from new_procbase_size the buffer size + // and also returns to it the amount of data filled in + new_procbase_size = procbase_size; + + // get the processes from the system + if (unlikely(sysctl(mib, 3, procbase, &new_procbase_size, NULL, 0))) { + netdata_log_error("sysctl error: Can't get processes data"); + return 0; + } + + // based on the amount of data filled in + // calculate the number of processes we got + procnum = new_procbase_size / sizeof(struct kinfo_proc); + +#endif + + if(all_pids_count) { +#if (ALL_PIDS_ARE_READ_INSTANTLY == 0) + size_t slc = 0; +#endif + for(p = root_of_pids; p ; p = p->next) { + p->read = false; // mark it as not read, so that collect_data_for_pid() will read it + p->updated = false; + p->merged = false; + p->children_count = 0; + p->parent = NULL; + +#if (ALL_PIDS_ARE_READ_INSTANTLY == 0) + all_pids_sortlist[slc++] = p->pid; +#endif + } + +#if (ALL_PIDS_ARE_READ_INSTANTLY == 0) + if(unlikely(slc != all_pids_count)) { + netdata_log_error("Internal error: I was thinking I had %zu processes in my arrays, but it seems there are %zu.", all_pids_count, slc); + all_pids_count = slc; + } + + if(include_exited_childs) { + // Read parents before childs + // This is needed to prevent a situation where + // a child is found running, but until we read + // its parent, it has exited and its parent + // has accumulated its resources. + + qsort((void *)all_pids_sortlist, (size_t)all_pids_count, sizeof(pid_t), compar_pid); + + // we forward read all running processes + // collect_data_for_pid() is smart enough, + // not to read the same pid twice per iteration + for(slc = 0; slc < all_pids_count; slc++) { + collect_data_for_pid(all_pids_sortlist[slc], NULL); + } + } +#endif + } + +#ifdef __FreeBSD__ + for (i = 0 ; i < procnum ; ++i) { + pid_t pid = procbase[i].ki_pid; + collect_data_for_pid(pid, &procbase[i]); + } +#else + static char uptime_filename[FILENAME_MAX + 1] = ""; + if(*uptime_filename == '\0') + snprintfz(uptime_filename, FILENAME_MAX, "%s/proc/uptime", netdata_configured_host_prefix); + + global_uptime = (kernel_uint_t)(uptime_msec(uptime_filename) / MSEC_PER_SEC); + + char dirname[FILENAME_MAX + 1]; + + snprintfz(dirname, FILENAME_MAX, "%s/proc", netdata_configured_host_prefix); + DIR *dir = opendir(dirname); + if(!dir) return 0; + + struct dirent *de = NULL; + + while((de = readdir(dir))) { + char *endptr = de->d_name; + + if(unlikely(de->d_type != DT_DIR || de->d_name[0] < '0' || de->d_name[0] > '9')) + continue; + + pid_t pid = (pid_t) strtoul(de->d_name, &endptr, 10); + + // make sure we read a valid number + if(unlikely(endptr == de->d_name || *endptr != '\0')) + continue; + + collect_data_for_pid(pid, NULL); + } + closedir(dir); +#endif + + if(!all_pids_count) + return 0; + + // we need /proc/stat to normalize the cpu consumption of the exited childs + read_global_time(); + + // build the process tree + link_all_processes_to_their_parents(); + + // normally this is done + // however we may have processes exited while we collected values + // so let's find the exited ones + // we do this by collecting the ownership of process + // if we manage to get the ownership, the process still runs + process_exited_processes(); + return 1; +} + +// ---------------------------------------------------------------------------- +// update statistics on the targets + +// 1. link all childs to their parents +// 2. go from bottom to top, marking as merged all childs to their parents +// this step links all parents without a target to the child target, if any +// 3. link all top level processes (the ones not merged) to the default target +// 4. go from top to bottom, linking all childs without a target, to their parent target +// after this step, all processes have a target +// [5. for each killed pid (updated = 0), remove its usage from its target] +// 6. zero all apps_groups_targets +// 7. concentrate all values on the apps_groups_targets +// 8. remove all killed processes +// 9. find the unique file count for each target +// check: update_apps_groups_statistics() + +static void cleanup_exited_pids(void) { + size_t c; + struct pid_stat *p = NULL; + + for(p = root_of_pids; p ;) { + if(!p->updated && (!p->keep || p->keeploops > 0)) { + if(unlikely(debug_enabled && (p->keep || p->keeploops))) + debug_log(" > CLEANUP cannot keep exited process %d (%s) anymore - removing it.", p->pid, p->comm); + + for(c = 0; c < p->fds_size; c++) + if(p->fds[c].fd > 0) { + file_descriptor_not_used(p->fds[c].fd); + clear_pid_fd(&p->fds[c]); + } + + pid_t r = p->pid; + p = p->next; + del_pid_entry(r); + } + else { + if(unlikely(p->keep)) p->keeploops++; + p->keep = false; + p = p->next; + } + } +} + +static void apply_apps_groups_targets_inheritance(void) { + struct pid_stat *p = NULL; + + // children that do not have a target + // inherit their target from their parent + int found = 1, loops = 0; + while(found) { + if(unlikely(debug_enabled)) loops++; + found = 0; + for(p = root_of_pids; p ; p = p->next) { + // if this process does not have a target, + // and it has a parent + // and its parent has a target + // then, set the parent's target to this process + if(unlikely(!p->target && p->parent && p->parent->target)) { + p->target = p->parent->target; + found++; + + if(debug_enabled || (p->target && p->target->debug_enabled)) + debug_log_int("TARGET INHERITANCE: %s is inherited by %d (%s) from its parent %d (%s).", p->target->name, p->pid, p->comm, p->parent->pid, p->parent->comm); + } + } + } + + // find all the procs with 0 childs and merge them to their parents + // repeat, until nothing more can be done. + int sortlist = 1; + found = 1; + while(found) { + if(unlikely(debug_enabled)) loops++; + found = 0; + + for(p = root_of_pids; p ; p = p->next) { + if(unlikely(!p->sortlist && !p->children_count)) + p->sortlist = sortlist++; + + if(unlikely( + !p->children_count // if this process does not have any children + && !p->merged // and is not already merged + && p->parent // and has a parent + && p->parent->children_count // and its parent has children + // and the target of this process and its parent is the same, + // or the parent does not have a target + && (p->target == p->parent->target || !p->parent->target) + && p->ppid != INIT_PID // and its parent is not init + )) { + // mark it as merged + p->parent->children_count--; + p->merged = true; + + // the parent inherits the child's target, if it does not have a target itself + if(unlikely(p->target && !p->parent->target)) { + p->parent->target = p->target; + + if(debug_enabled || (p->target && p->target->debug_enabled)) + debug_log_int("TARGET INHERITANCE: %s is inherited by %d (%s) from its child %d (%s).", p->target->name, p->parent->pid, p->parent->comm, p->pid, p->comm); + } + + found++; + } + } + + debug_log("TARGET INHERITANCE: merged %d processes", found); + } + + // init goes always to default target + if(all_pids[INIT_PID] && !all_pids[INIT_PID]->matched_by_config) + all_pids[INIT_PID]->target = apps_groups_default_target; + + // pid 0 goes always to default target + if(all_pids[0] && !all_pids[INIT_PID]->matched_by_config) + all_pids[0]->target = apps_groups_default_target; + + // give a default target on all top level processes + if(unlikely(debug_enabled)) loops++; + for(p = root_of_pids; p ; p = p->next) { + // if the process is not merged itself + // then it is a top level process + if(unlikely(!p->merged && !p->target)) + p->target = apps_groups_default_target; + + // make sure all processes have a sortlist + if(unlikely(!p->sortlist)) + p->sortlist = sortlist++; + } + + if(all_pids[1]) + all_pids[1]->sortlist = sortlist++; + + // give a target to all merged child processes + found = 1; + while(found) { + if(unlikely(debug_enabled)) loops++; + found = 0; + for(p = root_of_pids; p ; p = p->next) { + if(unlikely(!p->target && p->merged && p->parent && p->parent->target)) { + p->target = p->parent->target; + found++; + + if(debug_enabled || (p->target && p->target->debug_enabled)) + debug_log_int("TARGET INHERITANCE: %s is inherited by %d (%s) from its parent %d (%s) at phase 2.", p->target->name, p->pid, p->comm, p->parent->pid, p->parent->comm); + } + } + } + + debug_log("apply_apps_groups_targets_inheritance() made %d loops on the process tree", loops); +} + +static size_t zero_all_targets(struct target *root) { + struct target *w; + size_t count = 0; + + for (w = root; w ; w = w->next) { + count++; + + w->minflt = 0; + w->majflt = 0; + w->utime = 0; + w->stime = 0; + w->gtime = 0; + w->cminflt = 0; + w->cmajflt = 0; + w->cutime = 0; + w->cstime = 0; + w->cgtime = 0; + w->num_threads = 0; + // w->rss = 0; + w->processes = 0; + + w->status_vmsize = 0; + w->status_vmrss = 0; + w->status_vmshared = 0; + w->status_rssfile = 0; + w->status_rssshmem = 0; + w->status_vmswap = 0; + w->status_voluntary_ctxt_switches = 0; + w->status_nonvoluntary_ctxt_switches = 0; + + w->io_logical_bytes_read = 0; + w->io_logical_bytes_written = 0; + w->io_read_calls = 0; + w->io_write_calls = 0; + w->io_storage_bytes_read = 0; + w->io_storage_bytes_written = 0; + w->io_cancelled_write_bytes = 0; + + // zero file counters + if(w->target_fds) { + memset(w->target_fds, 0, sizeof(int) * w->target_fds_size); + w->openfds.files = 0; + w->openfds.pipes = 0; + w->openfds.sockets = 0; + w->openfds.inotifies = 0; + w->openfds.eventfds = 0; + w->openfds.timerfds = 0; + w->openfds.signalfds = 0; + w->openfds.eventpolls = 0; + w->openfds.other = 0; + + w->max_open_files_percent = 0.0; + } + + w->collected_starttime = 0; + w->uptime_min = 0; + w->uptime_sum = 0; + w->uptime_max = 0; + + if(unlikely(w->root_pid)) { + struct pid_on_target *pid_on_target_to_free, *pid_on_target = w->root_pid; + + while(pid_on_target) { + pid_on_target_to_free = pid_on_target; + pid_on_target = pid_on_target->next; + freez(pid_on_target_to_free); + } + + w->root_pid = NULL; + } + } + + return count; +} + +static inline void reallocate_target_fds(struct target *w) { + if(unlikely(!w)) + return; + + if(unlikely(!w->target_fds || w->target_fds_size < all_files_size)) { + w->target_fds = reallocz(w->target_fds, sizeof(int) * all_files_size); + memset(&w->target_fds[w->target_fds_size], 0, sizeof(int) * (all_files_size - w->target_fds_size)); + w->target_fds_size = all_files_size; + } +} + +static void aggregage_fd_type_on_openfds(FD_FILETYPE type, struct openfds *openfds) { + switch(type) { + case FILETYPE_FILE: + openfds->files++; + break; + + case FILETYPE_PIPE: + openfds->pipes++; + break; + + case FILETYPE_SOCKET: + openfds->sockets++; + break; + + case FILETYPE_INOTIFY: + openfds->inotifies++; + break; + + case FILETYPE_EVENTFD: + openfds->eventfds++; + break; + + case FILETYPE_TIMERFD: + openfds->timerfds++; + break; + + case FILETYPE_SIGNALFD: + openfds->signalfds++; + break; + + case FILETYPE_EVENTPOLL: + openfds->eventpolls++; + break; + + case FILETYPE_OTHER: + openfds->other++; + break; + } +} + +static inline void aggregate_fd_on_target(int fd, struct target *w) { + if(unlikely(!w)) + return; + + if(unlikely(w->target_fds[fd])) { + // it is already aggregated + // just increase its usage counter + w->target_fds[fd]++; + return; + } + + // increase its usage counter + // so that we will not add it again + w->target_fds[fd]++; + + aggregage_fd_type_on_openfds(all_files[fd].type, &w->openfds); +} + +static inline void aggregate_pid_fds_on_targets(struct pid_stat *p) { + + if(unlikely(!p->updated)) { + // the process is not running + return; + } + + struct target *w = p->target, *u = p->user_target, *g = p->group_target; + + reallocate_target_fds(w); + reallocate_target_fds(u); + reallocate_target_fds(g); + + p->openfds.files = 0; + p->openfds.pipes = 0; + p->openfds.sockets = 0; + p->openfds.inotifies = 0; + p->openfds.eventfds = 0; + p->openfds.timerfds = 0; + p->openfds.signalfds = 0; + p->openfds.eventpolls = 0; + p->openfds.other = 0; + + long currentfds = 0; + size_t c, size = p->fds_size; + struct pid_fd *fds = p->fds; + for(c = 0; c < size ;c++) { + int fd = fds[c].fd; + + if(likely(fd <= 0 || fd >= all_files_size)) + continue; + + currentfds++; + aggregage_fd_type_on_openfds(all_files[fd].type, &p->openfds); + + aggregate_fd_on_target(fd, w); + aggregate_fd_on_target(fd, u); + aggregate_fd_on_target(fd, g); + } +} + +static inline void aggregate_pid_on_target(struct target *w, struct pid_stat *p, struct target *o) { + (void)o; + + if(unlikely(!p->updated)) { + // the process is not running + return; + } + + if(unlikely(!w)) { + netdata_log_error("pid %d %s was left without a target!", p->pid, p->comm); + return; + } + + if(p->openfds_limits_percent > w->max_open_files_percent) + w->max_open_files_percent = p->openfds_limits_percent; + + w->cutime += p->cutime; + w->cstime += p->cstime; + w->cgtime += p->cgtime; + w->cminflt += p->cminflt; + w->cmajflt += p->cmajflt; + + w->utime += p->utime; + w->stime += p->stime; + w->gtime += p->gtime; + w->minflt += p->minflt; + w->majflt += p->majflt; + + // w->rss += p->rss; + + w->status_vmsize += p->status_vmsize; + w->status_vmrss += p->status_vmrss; + w->status_vmshared += p->status_vmshared; + w->status_rssfile += p->status_rssfile; + w->status_rssshmem += p->status_rssshmem; + w->status_vmswap += p->status_vmswap; + w->status_voluntary_ctxt_switches += p->status_voluntary_ctxt_switches; + w->status_nonvoluntary_ctxt_switches += p->status_nonvoluntary_ctxt_switches; + + w->io_logical_bytes_read += p->io_logical_bytes_read; + w->io_logical_bytes_written += p->io_logical_bytes_written; + w->io_read_calls += p->io_read_calls; + w->io_write_calls += p->io_write_calls; + w->io_storage_bytes_read += p->io_storage_bytes_read; + w->io_storage_bytes_written += p->io_storage_bytes_written; + w->io_cancelled_write_bytes += p->io_cancelled_write_bytes; + + w->processes++; + w->num_threads += p->num_threads; + + if(!w->collected_starttime || p->collected_starttime < w->collected_starttime) w->collected_starttime = p->collected_starttime; + if(!w->uptime_min || p->uptime < w->uptime_min) w->uptime_min = p->uptime; + w->uptime_sum += p->uptime; + if(!w->uptime_max || w->uptime_max < p->uptime) w->uptime_max = p->uptime; + + if(unlikely(debug_enabled || w->debug_enabled)) { + debug_log_int("aggregating '%s' pid %d on target '%s' utime=" KERNEL_UINT_FORMAT ", stime=" KERNEL_UINT_FORMAT ", gtime=" KERNEL_UINT_FORMAT ", cutime=" KERNEL_UINT_FORMAT ", cstime=" KERNEL_UINT_FORMAT ", cgtime=" KERNEL_UINT_FORMAT ", minflt=" KERNEL_UINT_FORMAT ", majflt=" KERNEL_UINT_FORMAT ", cminflt=" KERNEL_UINT_FORMAT ", cmajflt=" KERNEL_UINT_FORMAT "", p->comm, p->pid, w->name, p->utime, p->stime, p->gtime, p->cutime, p->cstime, p->cgtime, p->minflt, p->majflt, p->cminflt, p->cmajflt); + + struct pid_on_target *pid_on_target = mallocz(sizeof(struct pid_on_target)); + pid_on_target->pid = p->pid; + pid_on_target->next = w->root_pid; + w->root_pid = pid_on_target; + } +} + +static inline void post_aggregate_targets(struct target *root) { + struct target *w; + for (w = root; w ; w = w->next) { + if(w->collected_starttime) { + if (!w->starttime || w->collected_starttime < w->starttime) { + w->starttime = w->collected_starttime; + } + } else { + w->starttime = 0; + } + } +} + +static void calculate_netdata_statistics(void) { + + apply_apps_groups_targets_inheritance(); + + zero_all_targets(users_root_target); + zero_all_targets(groups_root_target); + apps_groups_targets_count = zero_all_targets(apps_groups_root_target); + + // this has to be done, before the cleanup + struct pid_stat *p = NULL; + struct target *w = NULL, *o = NULL; + + // concentrate everything on the targets + for(p = root_of_pids; p ; p = p->next) { + + // -------------------------------------------------------------------- + // apps_groups target + + aggregate_pid_on_target(p->target, p, NULL); + + + // -------------------------------------------------------------------- + // user target + + o = p->user_target; + if(likely(p->user_target && p->user_target->uid == p->uid)) + w = p->user_target; + else { + if(unlikely(debug_enabled && p->user_target)) + debug_log("pid %d (%s) switched user from %u (%s) to %u.", p->pid, p->comm, p->user_target->uid, p->user_target->name, p->uid); + + w = p->user_target = get_users_target(p->uid); + } + + aggregate_pid_on_target(w, p, o); + + + // -------------------------------------------------------------------- + // user group target + + o = p->group_target; + if(likely(p->group_target && p->group_target->gid == p->gid)) + w = p->group_target; + else { + if(unlikely(debug_enabled && p->group_target)) + debug_log("pid %d (%s) switched group from %u (%s) to %u.", p->pid, p->comm, p->group_target->gid, p->group_target->name, p->gid); + + w = p->group_target = get_groups_target(p->gid); + } + + aggregate_pid_on_target(w, p, o); + + + // -------------------------------------------------------------------- + // aggregate all file descriptors + + if(enable_file_charts) + aggregate_pid_fds_on_targets(p); + } + + post_aggregate_targets(apps_groups_root_target); + post_aggregate_targets(users_root_target); + post_aggregate_targets(groups_root_target); + + cleanup_exited_pids(); +} + +// ---------------------------------------------------------------------------- +// update chart dimensions + +static inline void send_BEGIN(const char *type, const char *name,const char *metric, usec_t usec) { + fprintf(stdout, "BEGIN %s.%s_%s %" PRIu64 "\n", type, name, metric, usec); +} + +static inline void send_SET(const char *name, kernel_uint_t value) { + fprintf(stdout, "SET %s = " KERNEL_UINT_FORMAT "\n", name, value); +} + +static inline void send_END(void) { + fprintf(stdout, "END\n\n"); +} + +void send_resource_usage_to_netdata(usec_t dt) { + static struct timeval last = { 0, 0 }; + static struct rusage me_last; + + struct timeval now; + struct rusage me; + + usec_t cpuuser; + usec_t cpusyst; + + if(!last.tv_sec) { + now_monotonic_timeval(&last); + getrusage(RUSAGE_SELF, &me_last); + + cpuuser = 0; + cpusyst = 0; + } + else { + now_monotonic_timeval(&now); + getrusage(RUSAGE_SELF, &me); + + cpuuser = me.ru_utime.tv_sec * USEC_PER_SEC + me.ru_utime.tv_usec; + cpusyst = me.ru_stime.tv_sec * USEC_PER_SEC + me.ru_stime.tv_usec; + + memmove(&last, &now, sizeof(struct timeval)); + memmove(&me_last, &me, sizeof(struct rusage)); + } + + static char created_charts = 0; + if(unlikely(!created_charts)) { + created_charts = 1; + + fprintf(stdout, + "CHART netdata.apps_cpu '' 'Apps Plugin CPU' 'milliseconds/s' apps.plugin netdata.apps_cpu stacked 140000 %1$d\n" + "DIMENSION user '' incremental 1 1000\n" + "DIMENSION system '' incremental 1 1000\n" + "CHART netdata.apps_sizes '' 'Apps Plugin Files' 'files/s' apps.plugin netdata.apps_sizes line 140001 %1$d\n" + "DIMENSION calls '' incremental 1 1\n" + "DIMENSION files '' incremental 1 1\n" + "DIMENSION filenames '' incremental 1 1\n" + "DIMENSION inode_changes '' incremental 1 1\n" + "DIMENSION link_changes '' incremental 1 1\n" + "DIMENSION pids '' absolute 1 1\n" + "DIMENSION fds '' absolute 1 1\n" + "DIMENSION targets '' absolute 1 1\n" + "DIMENSION new_pids 'new pids' incremental 1 1\n" + , update_every + ); + + fprintf(stdout, + "CHART netdata.apps_fix '' 'Apps Plugin Normalization Ratios' 'percentage' apps.plugin netdata.apps_fix line 140002 %1$d\n" + "DIMENSION utime '' absolute 1 %2$llu\n" + "DIMENSION stime '' absolute 1 %2$llu\n" + "DIMENSION gtime '' absolute 1 %2$llu\n" + "DIMENSION minflt '' absolute 1 %2$llu\n" + "DIMENSION majflt '' absolute 1 %2$llu\n" + , update_every + , RATES_DETAIL + ); + + if(include_exited_childs) + fprintf(stdout, + "CHART netdata.apps_children_fix '' 'Apps Plugin Exited Children Normalization Ratios' 'percentage' apps.plugin netdata.apps_children_fix line 140003 %1$d\n" + "DIMENSION cutime '' absolute 1 %2$llu\n" + "DIMENSION cstime '' absolute 1 %2$llu\n" + "DIMENSION cgtime '' absolute 1 %2$llu\n" + "DIMENSION cminflt '' absolute 1 %2$llu\n" + "DIMENSION cmajflt '' absolute 1 %2$llu\n" + , update_every + , RATES_DETAIL + ); + + } + + fprintf(stdout, + "BEGIN netdata.apps_cpu %"PRIu64"\n" + "SET user = %"PRIu64"\n" + "SET system = %"PRIu64"\n" + "END\n" + "BEGIN netdata.apps_sizes %"PRIu64"\n" + "SET calls = %zu\n" + "SET files = %zu\n" + "SET filenames = %zu\n" + "SET inode_changes = %zu\n" + "SET link_changes = %zu\n" + "SET pids = %zu\n" + "SET fds = %d\n" + "SET targets = %zu\n" + "SET new_pids = %zu\n" + "END\n" + , dt + , cpuuser + , cpusyst + , dt + , calls_counter + , file_counter + , filenames_allocated_counter + , inodes_changed_counter + , links_changed_counter + , all_pids_count + , all_files_len + , apps_groups_targets_count + , targets_assignment_counter + ); + + fprintf(stdout, + "BEGIN netdata.apps_fix %"PRIu64"\n" + "SET utime = %u\n" + "SET stime = %u\n" + "SET gtime = %u\n" + "SET minflt = %u\n" + "SET majflt = %u\n" + "END\n" + , dt + , (unsigned int)(utime_fix_ratio * 100 * RATES_DETAIL) + , (unsigned int)(stime_fix_ratio * 100 * RATES_DETAIL) + , (unsigned int)(gtime_fix_ratio * 100 * RATES_DETAIL) + , (unsigned int)(minflt_fix_ratio * 100 * RATES_DETAIL) + , (unsigned int)(majflt_fix_ratio * 100 * RATES_DETAIL) + ); + + if(include_exited_childs) + fprintf(stdout, + "BEGIN netdata.apps_children_fix %"PRIu64"\n" + "SET cutime = %u\n" + "SET cstime = %u\n" + "SET cgtime = %u\n" + "SET cminflt = %u\n" + "SET cmajflt = %u\n" + "END\n" + , dt + , (unsigned int)(cutime_fix_ratio * 100 * RATES_DETAIL) + , (unsigned int)(cstime_fix_ratio * 100 * RATES_DETAIL) + , (unsigned int)(cgtime_fix_ratio * 100 * RATES_DETAIL) + , (unsigned int)(cminflt_fix_ratio * 100 * RATES_DETAIL) + , (unsigned int)(cmajflt_fix_ratio * 100 * RATES_DETAIL) + ); +} + +static void normalize_utilization(struct target *root) { + struct target *w; + + // childs processing introduces spikes + // here we try to eliminate them by disabling childs processing either for specific dimensions + // or entirely. Of course, either way, we disable it just a single iteration. + + kernel_uint_t max_time = get_system_cpus() * time_factor * RATES_DETAIL; + kernel_uint_t utime = 0, cutime = 0, stime = 0, cstime = 0, gtime = 0, cgtime = 0, minflt = 0, cminflt = 0, majflt = 0, cmajflt = 0; + + if(global_utime > max_time) global_utime = max_time; + if(global_stime > max_time) global_stime = max_time; + if(global_gtime > max_time) global_gtime = max_time; + + for(w = root; w ; w = w->next) { + if(w->target || (!w->processes && !w->exposed)) continue; + + utime += w->utime; + stime += w->stime; + gtime += w->gtime; + cutime += w->cutime; + cstime += w->cstime; + cgtime += w->cgtime; + + minflt += w->minflt; + majflt += w->majflt; + cminflt += w->cminflt; + cmajflt += w->cmajflt; + } + + if(global_utime || global_stime || global_gtime) { + if(global_utime + global_stime + global_gtime > utime + cutime + stime + cstime + gtime + cgtime) { + // everything we collected fits + utime_fix_ratio = + stime_fix_ratio = + gtime_fix_ratio = + cutime_fix_ratio = + cstime_fix_ratio = + cgtime_fix_ratio = 1.0; //(NETDATA_DOUBLE)(global_utime + global_stime) / (NETDATA_DOUBLE)(utime + cutime + stime + cstime); + } + else if((global_utime + global_stime > utime + stime) && (cutime || cstime)) { + // children resources are too high + // lower only the children resources + utime_fix_ratio = + stime_fix_ratio = + gtime_fix_ratio = 1.0; + cutime_fix_ratio = + cstime_fix_ratio = + cgtime_fix_ratio = (NETDATA_DOUBLE)((global_utime + global_stime) - (utime + stime)) / (NETDATA_DOUBLE)(cutime + cstime); + } + else if(utime || stime) { + // even running processes are unrealistic + // zero the children resources + // lower the running processes resources + utime_fix_ratio = + stime_fix_ratio = + gtime_fix_ratio = (NETDATA_DOUBLE)(global_utime + global_stime) / (NETDATA_DOUBLE)(utime + stime); + cutime_fix_ratio = + cstime_fix_ratio = + cgtime_fix_ratio = 0.0; + } + else { + utime_fix_ratio = + stime_fix_ratio = + gtime_fix_ratio = + cutime_fix_ratio = + cstime_fix_ratio = + cgtime_fix_ratio = 0.0; + } + } + else { + utime_fix_ratio = + stime_fix_ratio = + gtime_fix_ratio = + cutime_fix_ratio = + cstime_fix_ratio = + cgtime_fix_ratio = 0.0; + } + + if(utime_fix_ratio > 1.0) utime_fix_ratio = 1.0; + if(cutime_fix_ratio > 1.0) cutime_fix_ratio = 1.0; + if(stime_fix_ratio > 1.0) stime_fix_ratio = 1.0; + if(cstime_fix_ratio > 1.0) cstime_fix_ratio = 1.0; + if(gtime_fix_ratio > 1.0) gtime_fix_ratio = 1.0; + if(cgtime_fix_ratio > 1.0) cgtime_fix_ratio = 1.0; + + // if(utime_fix_ratio < 0.0) utime_fix_ratio = 0.0; + // if(cutime_fix_ratio < 0.0) cutime_fix_ratio = 0.0; + // if(stime_fix_ratio < 0.0) stime_fix_ratio = 0.0; + // if(cstime_fix_ratio < 0.0) cstime_fix_ratio = 0.0; + // if(gtime_fix_ratio < 0.0) gtime_fix_ratio = 0.0; + // if(cgtime_fix_ratio < 0.0) cgtime_fix_ratio = 0.0; + + // TODO + // we use cpu time to normalize page faults + // the problem is that to find the proper max values + // for page faults we have to parse /proc/vmstat + // which is quite big to do it again (netdata does it already) + // + // a better solution could be to somehow have netdata + // do this normalization for us + + if(utime || stime || gtime) + majflt_fix_ratio = + minflt_fix_ratio = (NETDATA_DOUBLE)(utime * utime_fix_ratio + stime * stime_fix_ratio + gtime * gtime_fix_ratio) / (NETDATA_DOUBLE)(utime + stime + gtime); + else + minflt_fix_ratio = + majflt_fix_ratio = 1.0; + + if(cutime || cstime || cgtime) + cmajflt_fix_ratio = + cminflt_fix_ratio = (NETDATA_DOUBLE)(cutime * cutime_fix_ratio + cstime * cstime_fix_ratio + cgtime * cgtime_fix_ratio) / (NETDATA_DOUBLE)(cutime + cstime + cgtime); + else + cminflt_fix_ratio = + cmajflt_fix_ratio = 1.0; + + // the report + + debug_log( + "SYSTEM: u=" KERNEL_UINT_FORMAT " s=" KERNEL_UINT_FORMAT " g=" KERNEL_UINT_FORMAT " " + "COLLECTED: u=" KERNEL_UINT_FORMAT " s=" KERNEL_UINT_FORMAT " g=" KERNEL_UINT_FORMAT " cu=" KERNEL_UINT_FORMAT " cs=" KERNEL_UINT_FORMAT " cg=" KERNEL_UINT_FORMAT " " + "DELTA: u=" KERNEL_UINT_FORMAT " s=" KERNEL_UINT_FORMAT " g=" KERNEL_UINT_FORMAT " " + "FIX: u=%0.2f s=%0.2f g=%0.2f cu=%0.2f cs=%0.2f cg=%0.2f " + "FINALLY: u=" KERNEL_UINT_FORMAT " s=" KERNEL_UINT_FORMAT " g=" KERNEL_UINT_FORMAT " cu=" KERNEL_UINT_FORMAT " cs=" KERNEL_UINT_FORMAT " cg=" KERNEL_UINT_FORMAT " " + , global_utime + , global_stime + , global_gtime + , utime + , stime + , gtime + , cutime + , cstime + , cgtime + , utime + cutime - global_utime + , stime + cstime - global_stime + , gtime + cgtime - global_gtime + , utime_fix_ratio + , stime_fix_ratio + , gtime_fix_ratio + , cutime_fix_ratio + , cstime_fix_ratio + , cgtime_fix_ratio + , (kernel_uint_t)(utime * utime_fix_ratio) + , (kernel_uint_t)(stime * stime_fix_ratio) + , (kernel_uint_t)(gtime * gtime_fix_ratio) + , (kernel_uint_t)(cutime * cutime_fix_ratio) + , (kernel_uint_t)(cstime * cstime_fix_ratio) + , (kernel_uint_t)(cgtime * cgtime_fix_ratio) + ); +} + +static void send_collected_data_to_netdata(struct target *root, const char *type, usec_t dt) { + struct target *w; + + for (w = root; w ; w = w->next) { + if (unlikely(!w->exposed)) + continue; + + send_BEGIN(type, w->clean_name, "processes", dt); + send_SET("processes", w->processes); + send_END(); + + send_BEGIN(type, w->clean_name, "threads", dt); + send_SET("threads", w->num_threads); + send_END(); + + if (unlikely(!w->processes && !w->is_other)) + continue; + + send_BEGIN(type, w->clean_name, "cpu_utilization", dt); + send_SET("user", (kernel_uint_t)(w->utime * utime_fix_ratio) + (include_exited_childs ? ((kernel_uint_t)(w->cutime * cutime_fix_ratio)) : 0ULL)); + send_SET("system", (kernel_uint_t)(w->stime * stime_fix_ratio) + (include_exited_childs ? ((kernel_uint_t)(w->cstime * cstime_fix_ratio)) : 0ULL)); + send_END(); + +#ifndef __FreeBSD__ + if (enable_guest_charts) { + send_BEGIN(type, w->clean_name, "cpu_guest_utilization", dt); + send_SET("guest", (kernel_uint_t)(w->gtime * gtime_fix_ratio) + (include_exited_childs ? ((kernel_uint_t)(w->cgtime * cgtime_fix_ratio)) : 0ULL)); + send_END(); + } + + send_BEGIN(type, w->clean_name, "cpu_context_switches", dt); + send_SET("voluntary", w->status_voluntary_ctxt_switches); + send_SET("involuntary", w->status_nonvoluntary_ctxt_switches); + send_END(); + + send_BEGIN(type, w->clean_name, "mem_private_usage", dt); + send_SET("mem", (w->status_vmrss > w->status_vmshared)?(w->status_vmrss - w->status_vmshared) : 0ULL); + send_END(); +#endif + + send_BEGIN(type, w->clean_name, "mem_usage", dt); + send_SET("rss", w->status_vmrss); + send_END(); + + send_BEGIN(type, w->clean_name, "vmem_usage", dt); + send_SET("vmem", w->status_vmsize); + send_END(); + + send_BEGIN(type, w->clean_name, "mem_page_faults", dt); + send_SET("minor", (kernel_uint_t)(w->minflt * minflt_fix_ratio) + (include_exited_childs ? ((kernel_uint_t)(w->cminflt * cminflt_fix_ratio)) : 0ULL)); + send_SET("major", (kernel_uint_t)(w->majflt * majflt_fix_ratio) + (include_exited_childs ? ((kernel_uint_t)(w->cmajflt * cmajflt_fix_ratio)) : 0ULL)); + send_END(); + +#ifndef __FreeBSD__ + send_BEGIN(type, w->clean_name, "swap_usage", dt); + send_SET("swap", w->status_vmswap); + send_END(); +#endif + +#ifndef __FreeBSD__ + if (w->processes == 0) { + send_BEGIN(type, w->clean_name, "uptime", dt); + send_SET("uptime", 0); + send_END(); + + if (enable_detailed_uptime_charts) { + send_BEGIN(type, w->clean_name, "uptime_summary", dt); + send_SET("min", 0); + send_SET("avg", 0); + send_SET("max", 0); + send_END(); + } + } else { + send_BEGIN(type, w->clean_name, "uptime", dt); + send_SET("uptime", (global_uptime > w->starttime) ? (global_uptime - w->starttime) : 0); + send_END(); + + if (enable_detailed_uptime_charts) { + send_BEGIN(type, w->clean_name, "uptime_summary", dt); + send_SET("min", w->uptime_min); + send_SET("avg", w->processes > 0 ? w->uptime_sum / w->processes : 0); + send_SET("max", w->uptime_max); + send_END(); + } + } +#endif + + send_BEGIN(type, w->clean_name, "disk_physical_io", dt); + send_SET("reads", w->io_storage_bytes_read); + send_SET("writes", w->io_storage_bytes_written); + send_END(); + +#ifndef __FreeBSD__ + send_BEGIN(type, w->clean_name, "disk_logical_io", dt); + send_SET("reads", w->io_logical_bytes_read); + send_SET("writes", w->io_logical_bytes_written); + send_END(); +#endif + if (enable_file_charts) { + send_BEGIN(type, w->clean_name, "fds_open_limit", dt); + send_SET("limit", w->max_open_files_percent * 100.0); + send_END(); + + send_BEGIN(type, w->clean_name, "fds_open", dt); + send_SET("files", w->openfds.files); + send_SET("sockets", w->openfds.sockets); + send_SET("pipes", w->openfds.sockets); + send_SET("inotifies", w->openfds.inotifies); + send_SET("event", w->openfds.eventfds); + send_SET("timer", w->openfds.timerfds); + send_SET("signal", w->openfds.signalfds); + send_SET("eventpolls", w->openfds.eventpolls); + send_SET("other", w->openfds.other); + send_END(); + } + } +} + + +// ---------------------------------------------------------------------------- +// generate the charts + +static void send_charts_updates_to_netdata(struct target *root, const char *type, const char *lbl_name, const char *title) +{ + struct target *w; + + if (debug_enabled) { + for (w = root; w; w = w->next) { + if (unlikely(!w->target && w->processes)) { + struct pid_on_target *pid_on_target; + fprintf(stderr, "apps.plugin: target '%s' has aggregated %u process(es):", w->name, w->processes); + for (pid_on_target = w->root_pid; pid_on_target; pid_on_target = pid_on_target->next) { + fprintf(stderr, " %d", pid_on_target->pid); + } + fputc('\n', stderr); + } + } + } + + for (w = root; w; w = w->next) { + if (likely(w->exposed || (!w->processes && !w->is_other))) + continue; + + w->exposed = 1; + + fprintf(stdout, "CHART %s.%s_cpu_utilization '' '%s CPU utilization (100%% = 1 core)' 'percentage' cpu %s.cpu_utilization stacked 20001 %d\n", type, w->clean_name, title, type, update_every); + fprintf(stdout, "CLABEL '%s' '%s' 1\n", lbl_name, w->name); + fprintf(stdout, "CLABEL_COMMIT\n"); + fprintf(stdout, "DIMENSION user '' absolute 1 %llu\n", time_factor * RATES_DETAIL / 100LLU); + fprintf(stdout, "DIMENSION system '' absolute 1 %llu\n", time_factor * RATES_DETAIL / 100LLU); + +#ifndef __FreeBSD__ + if (enable_guest_charts) { + fprintf(stdout, "CHART %s.%s_cpu_guest_utilization '' '%s CPU guest utlization (100%% = 1 core)' 'percentage' cpu %s.cpu_guest_utilization line 20005 %d\n", type, w->clean_name, title, type, update_every); + fprintf(stdout, "CLABEL '%s' '%s' 1\n", lbl_name, w->name); + fprintf(stdout, "CLABEL_COMMIT\n"); + fprintf(stdout, "DIMENSION guest '' absolute 1 %llu\n", time_factor * RATES_DETAIL / 100LLU); + } + + fprintf(stdout, "CHART %s.%s_cpu_context_switches '' '%s CPU context switches' 'switches/s' cpu %s.cpu_context_switches stacked 20010 %d\n", type, w->clean_name, title, type, update_every); + fprintf(stdout, "CLABEL '%s' '%s' 1\n", lbl_name, w->name); + fprintf(stdout, "CLABEL_COMMIT\n"); + fprintf(stdout, "DIMENSION voluntary '' absolute 1 %llu\n", RATES_DETAIL); + fprintf(stdout, "DIMENSION involuntary '' absolute 1 %llu\n", RATES_DETAIL); + + fprintf(stdout, "CHART %s.%s_mem_private_usage '' '%s memory usage without shared' 'MiB' mem %s.mem_private_usage area 20050 %d\n", type, w->clean_name, title, type, update_every); + fprintf(stdout, "CLABEL '%s' '%s' 1\n", lbl_name, w->name); + fprintf(stdout, "CLABEL_COMMIT\n"); + fprintf(stdout, "DIMENSION mem '' absolute %ld %ld\n", 1L, 1024L); +#endif + + fprintf(stdout, "CHART %s.%s_mem_usage '' '%s memory RSS usage' 'MiB' mem %s.mem_usage area 20055 %d\n", type, w->clean_name, title, type, update_every); + fprintf(stdout, "CLABEL '%s' '%s' 1\n", lbl_name, w->name); + fprintf(stdout, "CLABEL_COMMIT\n"); + fprintf(stdout, "DIMENSION rss '' absolute %ld %ld\n", 1L, 1024L); + + fprintf(stdout, "CHART %s.%s_mem_page_faults '' '%s memory page faults' 'pgfaults/s' mem %s.mem_page_faults stacked 20060 %d\n", type, w->clean_name, title, type, update_every); + fprintf(stdout, "CLABEL '%s' '%s' 1\n", lbl_name, w->name); + fprintf(stdout, "CLABEL_COMMIT\n"); + fprintf(stdout, "DIMENSION major '' absolute 1 %llu\n", RATES_DETAIL); + fprintf(stdout, "DIMENSION minor '' absolute 1 %llu\n", RATES_DETAIL); + + fprintf(stdout, "CHART %s.%s_vmem_usage '' '%s virtual memory size' 'MiB' mem %s.vmem_usage line 20065 %d\n", type, w->clean_name, title, type, update_every); + fprintf(stdout, "CLABEL '%s' '%s' 1\n", lbl_name, w->name); + fprintf(stdout, "CLABEL_COMMIT\n"); + fprintf(stdout, "DIMENSION vmem '' absolute %ld %ld\n", 1L, 1024L); + +#ifndef __FreeBSD__ + fprintf(stdout, "CHART %s.%s_swap_usage '' '%s swap usage' 'MiB' mem %s.swap_usage area 20065 %d\n", type, w->clean_name, title, type, update_every); + fprintf(stdout, "CLABEL '%s' '%s' 1\n", lbl_name, w->name); + fprintf(stdout, "CLABEL_COMMIT\n"); + fprintf(stdout, "DIMENSION swap '' absolute %ld %ld\n", 1L, 1024L); +#endif + +#ifndef __FreeBSD__ + fprintf(stdout, "CHART %s.%s_disk_physical_io '' '%s disk physical IO' 'KiB/s' disk %s.disk_physical_io area 20100 %d\n", type, w->clean_name, title, type, update_every); + fprintf(stdout, "CLABEL '%s' '%s' 1\n", lbl_name, w->name); + fprintf(stdout, "CLABEL_COMMIT\n"); + fprintf(stdout, "DIMENSION reads '' absolute 1 %llu\n", 1024LLU * RATES_DETAIL); + fprintf(stdout, "DIMENSION writes '' absolute -1 %llu\n", 1024LLU * RATES_DETAIL); + + fprintf(stdout, "CHART %s.%s_disk_logical_io '' '%s disk logical IO' 'KiB/s' disk %s.disk_logical_io area 20105 %d\n", type, w->clean_name, title, type, update_every); + fprintf(stdout, "CLABEL '%s' '%s' 1\n", lbl_name, w->name); + fprintf(stdout, "CLABEL_COMMIT\n"); + fprintf(stdout, "DIMENSION reads '' absolute 1 %llu\n", 1024LLU * RATES_DETAIL); + fprintf(stdout, "DIMENSION writes '' absolute -1 %llu\n", 1024LLU * RATES_DETAIL); +#else + fprintf(stdout, "CHART %s.%s_disk_physical_io '' '%s disk physical IO' 'blocks/s' disk %s.disk_physical_block_io area 20100 %d\n", type, w->clean_name, title, type, update_every); + fprintf(stdout, "CLABEL '%s' '%s' 1\n", lbl_name, w->name); + fprintf(stdout, "CLABEL_COMMIT\n"); + fprintf(stdout, "DIMENSION reads '' absolute 1 %llu\n", RATES_DETAIL); + fprintf(stdout, "DIMENSION writes '' absolute -1 %llu\n", RATES_DETAIL); +#endif + + fprintf(stdout, "CHART %s.%s_processes '' '%s processes' 'processes' processes %s.processes line 20150 %d\n", type, w->clean_name, title, type, update_every); + fprintf(stdout, "CLABEL '%s' '%s' 1\n", lbl_name, w->name); + fprintf(stdout, "CLABEL_COMMIT\n"); + fprintf(stdout, "DIMENSION processes '' absolute 1 1\n"); + + fprintf(stdout, "CHART %s.%s_threads '' '%s threads' 'threads' processes %s.threads line 20155 %d\n", type, w->clean_name, title, type, update_every); + fprintf(stdout, "CLABEL '%s' '%s' 1\n", lbl_name, w->name); + fprintf(stdout, "CLABEL_COMMIT\n"); + fprintf(stdout, "DIMENSION threads '' absolute 1 1\n"); + + if (enable_file_charts) { + fprintf(stdout, "CHART %s.%s_fds_open_limit '' '%s open file descriptors limit' '%%' fds %s.fds_open_limit line 20200 %d\n", type, w->clean_name, title, type, update_every); + fprintf(stdout, "CLABEL '%s' '%s' 1\n", lbl_name, w->name); + fprintf(stdout, "CLABEL_COMMIT\n"); + fprintf(stdout, "DIMENSION limit '' absolute 1 100\n"); + + fprintf(stdout, "CHART %s.%s_fds_open '' '%s open files descriptors' 'fds' fds %s.fds_open stacked 20210 %d\n", type, w->clean_name, title, type, update_every); + fprintf(stdout, "CLABEL '%s' '%s' 1\n", lbl_name, w->name); + fprintf(stdout, "CLABEL_COMMIT\n"); + fprintf(stdout, "DIMENSION files '' absolute 1 1\n"); + fprintf(stdout, "DIMENSION sockets '' absolute 1 1\n"); + fprintf(stdout, "DIMENSION pipes '' absolute 1 1\n"); + fprintf(stdout, "DIMENSION inotifies '' absolute 1 1\n"); + fprintf(stdout, "DIMENSION event '' absolute 1 1\n"); + fprintf(stdout, "DIMENSION timer '' absolute 1 1\n"); + fprintf(stdout, "DIMENSION signal '' absolute 1 1\n"); + fprintf(stdout, "DIMENSION eventpolls '' absolute 1 1\n"); + fprintf(stdout, "DIMENSION other '' absolute 1 1\n"); + } + +#ifndef __FreeBSD__ + fprintf(stdout, "CHART %s.%s_uptime '' '%s uptime' 'seconds' uptime %s.uptime line 20250 %d\n", type, w->clean_name, title, type, update_every); + fprintf(stdout, "CLABEL '%s' '%s' 1\n", lbl_name, w->name); + fprintf(stdout, "CLABEL_COMMIT\n"); + fprintf(stdout, "DIMENSION uptime '' absolute 1 1\n"); + + if (enable_detailed_uptime_charts) { + fprintf(stdout, "CHART %s.%s_uptime_summary '' '%s uptime summary' 'seconds' uptime %s.uptime_summary area 20255 %d\n", type, w->clean_name, title, type, update_every); + fprintf(stdout, "CLABEL '%s' '%s' 1\n", lbl_name, w->name); + fprintf(stdout, "CLABEL_COMMIT\n"); + fprintf(stdout, "DIMENSION min '' absolute 1 1\n"); + fprintf(stdout, "DIMENSION avg '' absolute 1 1\n"); + fprintf(stdout, "DIMENSION max '' absolute 1 1\n"); + } +#endif + } +} + +#ifndef __FreeBSD__ +static void send_proc_states_count(usec_t dt) +{ + static bool chart_added = false; + // create chart for count of processes in different states + if (!chart_added) { + fprintf( + stdout, + "CHART system.processes_state '' 'System Processes State' 'processes' processes system.processes_state line %d %d\n", + NETDATA_CHART_PRIO_SYSTEM_PROCESS_STATES, + update_every); + for (proc_state i = PROC_STATUS_RUNNING; i < PROC_STATUS_END; i++) { + fprintf(stdout, "DIMENSION %s '' absolute 1 1\n", proc_states[i]); + } + chart_added = true; + } + + // send process state count + fprintf(stdout, "BEGIN system.processes_state %" PRIu64 "\n", dt); + for (proc_state i = PROC_STATUS_RUNNING; i < PROC_STATUS_END; i++) { + send_SET(proc_states[i], proc_state_count[i]); + } + send_END(); +} +#endif + +// ---------------------------------------------------------------------------- +// parse command line arguments + +int check_proc_1_io() { + int ret = 0; + + procfile *ff = procfile_open("/proc/1/io", NULL, PROCFILE_FLAG_NO_ERROR_ON_FILE_IO); + if(!ff) goto cleanup; + + ff = procfile_readall(ff); + if(!ff) goto cleanup; + + ret = 1; + +cleanup: + procfile_close(ff); + return ret; +} + +static void parse_args(int argc, char **argv) +{ + int i, freq = 0; + + for(i = 1; i < argc; i++) { + if(!freq) { + int n = (int)str2l(argv[i]); + if(n > 0) { + freq = n; + continue; + } + } + + if(strcmp("version", argv[i]) == 0 || strcmp("-version", argv[i]) == 0 || strcmp("--version", argv[i]) == 0 || strcmp("-v", argv[i]) == 0 || strcmp("-V", argv[i]) == 0) { + printf("apps.plugin %s\n", VERSION); + exit(0); + } + + if(strcmp("test-permissions", argv[i]) == 0 || strcmp("-t", argv[i]) == 0) { + if(!check_proc_1_io()) { + perror("Tried to read /proc/1/io and it failed"); + exit(1); + } + printf("OK\n"); + exit(0); + } + + if(strcmp("debug", argv[i]) == 0) { + debug_enabled = 1; +#ifndef NETDATA_INTERNAL_CHECKS + fprintf(stderr, "apps.plugin has been compiled without debugging\n"); +#endif + continue; + } + +#ifndef __FreeBSD__ + if(strcmp("fds-cache-secs", argv[i]) == 0) { + if(argc <= i + 1) { + fprintf(stderr, "Parameter 'fds-cache-secs' requires a number as argument.\n"); + exit(1); + } + i++; + max_fds_cache_seconds = str2i(argv[i]); + if(max_fds_cache_seconds < 0) max_fds_cache_seconds = 0; + continue; + } +#endif + + if(strcmp("no-childs", argv[i]) == 0 || strcmp("without-childs", argv[i]) == 0) { + include_exited_childs = 0; + continue; + } + + if(strcmp("with-childs", argv[i]) == 0) { + include_exited_childs = 1; + continue; + } + + if(strcmp("with-guest", argv[i]) == 0) { + enable_guest_charts = 1; + continue; + } + + if(strcmp("no-guest", argv[i]) == 0 || strcmp("without-guest", argv[i]) == 0) { + enable_guest_charts = 0; + continue; + } + + if(strcmp("with-files", argv[i]) == 0) { + enable_file_charts = 1; + continue; + } + + if(strcmp("no-files", argv[i]) == 0 || strcmp("without-files", argv[i]) == 0) { + enable_file_charts = 0; + continue; + } + + if(strcmp("no-users", argv[i]) == 0 || strcmp("without-users", argv[i]) == 0) { + enable_users_charts = 0; + continue; + } + + if(strcmp("no-groups", argv[i]) == 0 || strcmp("without-groups", argv[i]) == 0) { + enable_groups_charts = 0; + continue; + } + + if(strcmp("with-detailed-uptime", argv[i]) == 0) { + enable_detailed_uptime_charts = 1; + continue; + } + if(strcmp("with-function-cmdline", argv[i]) == 0) { + enable_function_cmdline = 1; + continue; + } + + if(strcmp("-h", argv[i]) == 0 || strcmp("--help", argv[i]) == 0) { + fprintf(stderr, + "\n" + " netdata apps.plugin %s\n" + " Copyright (C) 2016-2017 Costa Tsaousis <costa@tsaousis.gr>\n" + " Released under GNU General Public License v3 or later.\n" + " All rights reserved.\n" + "\n" + " This program is a data collector plugin for netdata.\n" + "\n" + " Available command line options:\n" + "\n" + " SECONDS set the data collection frequency\n" + "\n" + " debug enable debugging (lot of output)\n" + "\n" + " with-function-cmdline enable reporting the complete command line for processes\n" + " it includes the command and passed arguments\n" + " it may include sensitive data such as passwords and tokens\n" + " enabling this could be a security risk\n" + "\n" + " with-childs\n" + " without-childs enable / disable aggregating exited\n" + " children resources into parents\n" + " (default is enabled)\n" + "\n" + " with-guest\n" + " without-guest enable / disable reporting guest charts\n" + " (default is disabled)\n" + "\n" + " with-files\n" + " without-files enable / disable reporting files, sockets, pipes\n" + " (default is enabled)\n" + "\n" + " without-users disable reporting per user charts\n" + "\n" + " without-groups disable reporting per user group charts\n" + "\n" + " with-detailed-uptime enable reporting min/avg/max uptime charts\n" + "\n" +#ifndef __FreeBSD__ + " fds-cache-secs N cache the files of processed for N seconds\n" + " caching is adaptive per file (when a file\n" + " is found, it starts at 0 and while the file\n" + " remains open, it is incremented up to the\n" + " max given)\n" + " (default is %d seconds)\n" + "\n" +#endif + " version or -v or -V print program version and exit\n" + "\n" + , VERSION +#ifndef __FreeBSD__ + , max_fds_cache_seconds +#endif + ); + exit(1); + } + + netdata_log_error("Cannot understand option %s", argv[i]); + exit(1); + } + + if(freq > 0) update_every = freq; + + if(read_apps_groups_conf(user_config_dir, "groups")) { + netdata_log_info("Cannot read process groups configuration file '%s/apps_groups.conf'. Will try '%s/apps_groups.conf'", user_config_dir, stock_config_dir); + + if(read_apps_groups_conf(stock_config_dir, "groups")) { + netdata_log_error("Cannot read process groups '%s/apps_groups.conf'. There are no internal defaults. Failing.", stock_config_dir); + exit(1); + } + else + netdata_log_info("Loaded config file '%s/apps_groups.conf'", stock_config_dir); + } + else + netdata_log_info("Loaded config file '%s/apps_groups.conf'", user_config_dir); +} + +static int am_i_running_as_root() { + uid_t uid = getuid(), euid = geteuid(); + + if(uid == 0 || euid == 0) { + if(debug_enabled) netdata_log_info("I am running with escalated privileges, uid = %u, euid = %u.", uid, euid); + return 1; + } + + if(debug_enabled) netdata_log_info("I am not running with escalated privileges, uid = %u, euid = %u.", uid, euid); + return 0; +} + +#ifdef HAVE_CAPABILITY +static int check_capabilities() { + cap_t caps = cap_get_proc(); + if(!caps) { + netdata_log_error("Cannot get current capabilities."); + return 0; + } + else if(debug_enabled) + netdata_log_info("Received my capabilities from the system."); + + int ret = 1; + + cap_flag_value_t cfv = CAP_CLEAR; + if(cap_get_flag(caps, CAP_DAC_READ_SEARCH, CAP_EFFECTIVE, &cfv) == -1) { + netdata_log_error("Cannot find if CAP_DAC_READ_SEARCH is effective."); + ret = 0; + } + else { + if(cfv != CAP_SET) { + netdata_log_error("apps.plugin should run with CAP_DAC_READ_SEARCH."); + ret = 0; + } + else if(debug_enabled) + netdata_log_info("apps.plugin runs with CAP_DAC_READ_SEARCH."); + } + + cfv = CAP_CLEAR; + if(cap_get_flag(caps, CAP_SYS_PTRACE, CAP_EFFECTIVE, &cfv) == -1) { + netdata_log_error("Cannot find if CAP_SYS_PTRACE is effective."); + ret = 0; + } + else { + if(cfv != CAP_SET) { + netdata_log_error("apps.plugin should run with CAP_SYS_PTRACE."); + ret = 0; + } + else if(debug_enabled) + netdata_log_info("apps.plugin runs with CAP_SYS_PTRACE."); + } + + cap_free(caps); + + return ret; +} +#else +static int check_capabilities() { + return 0; +} +#endif + +static netdata_mutex_t apps_and_stdout_mutex = NETDATA_MUTEX_INITIALIZER; + +#define PROCESS_FILTER_CATEGORY "category:" +#define PROCESS_FILTER_USER "user:" +#define PROCESS_FILTER_GROUP "group:" +#define PROCESS_FILTER_PROCESS "process:" +#define PROCESS_FILTER_PID "pid:" +#define PROCESS_FILTER_UID "uid:" +#define PROCESS_FILTER_GID "gid:" + +static struct target *find_target_by_name(struct target *base, const char *name) { + struct target *t; + for(t = base; t ; t = t->next) { + if (strcmp(t->name, name) == 0) + return t; + } + + return NULL; +} + +static kernel_uint_t MemTotal = 0; + +static void get_MemTotal(void) { +#ifdef __FreeBSD__ + // TODO - fix this for FreeBSD + return; +#else + char filename[FILENAME_MAX + 1]; + snprintfz(filename, FILENAME_MAX, "%s/proc/meminfo", netdata_configured_host_prefix); + + procfile *ff = procfile_open(filename, ": \t", PROCFILE_FLAG_DEFAULT); + if(!ff) + return; + + ff = procfile_readall(ff); + if(!ff) + return; + + size_t line, lines = procfile_lines(ff); + + for(line = 0; line < lines ;line++) { + size_t words = procfile_linewords(ff, line); + if(words == 3 && strcmp(procfile_lineword(ff, line, 0), "MemTotal") == 0 && strcmp(procfile_lineword(ff, line, 2), "kB") == 0) { + kernel_uint_t n = str2ull(procfile_lineword(ff, line, 1), NULL); + if(n) MemTotal = n; + break; + } + } + + procfile_close(ff); +#endif +} + +static void apps_plugin_function_processes_help(const char *transaction) { + BUFFER *wb = buffer_create(0, NULL); + buffer_sprintf(wb, "%s", + "apps.plugin / processes\n" + "\n" + "Function `processes` presents all the currently running processes of the system.\n" + "\n" + "The following filters are supported:\n" + "\n" + " category:NAME\n" + " Shows only processes that are assigned the category `NAME` in apps_groups.conf\n" + "\n" + " user:NAME\n" + " Shows only processes that are running as user name `NAME`.\n" + "\n" + " group:NAME\n" + " Shows only processes that are running as group name `NAME`.\n" + "\n" + " process:NAME\n" + " Shows only processes that their Command is `NAME` or their parent's Command is `NAME`.\n" + "\n" + " pid:NUMBER\n" + " Shows only processes that their PID is `NUMBER` or their parent's PID is `NUMBER`\n" + "\n" + " uid:NUMBER\n" + " Shows only processes that their UID is `NUMBER`\n" + "\n" + " gid:NUMBER\n" + " Shows only processes that their GID is `NUMBER`\n" + "\n" + "Filters can be combined. Each filter can be given only one time.\n" + ); + + pluginsd_function_result_to_stdout(transaction, HTTP_RESP_OK, "text/plain", now_realtime_sec() + 3600, wb); + buffer_free(wb); +} + +#define add_value_field_llu_with_max(wb, key, value) do { \ + unsigned long long _tmp = (value); \ + key ## _max = (rows == 0) ? (_tmp) : MAX(key ## _max, _tmp); \ + buffer_json_add_array_item_uint64(wb, _tmp); \ +} while(0) + +#define add_value_field_ndd_with_max(wb, key, value) do { \ + NETDATA_DOUBLE _tmp = (value); \ + key ## _max = (rows == 0) ? (_tmp) : MAX(key ## _max, _tmp); \ + buffer_json_add_array_item_double(wb, _tmp); \ +} while(0) + +static void function_processes(const char *transaction, char *function __maybe_unused, int timeout __maybe_unused, bool *cancelled __maybe_unused) { + struct pid_stat *p; + + char *words[PLUGINSD_MAX_WORDS] = { NULL }; + size_t num_words = quoted_strings_splitter_pluginsd(function, words, PLUGINSD_MAX_WORDS); + + struct target *category = NULL, *user = NULL, *group = NULL; + const char *process_name = NULL; + pid_t pid = 0; + uid_t uid = 0; + gid_t gid = 0; + + bool filter_pid = false, filter_uid = false, filter_gid = false; + + for(int i = 1; i < PLUGINSD_MAX_WORDS ;i++) { + const char *keyword = get_word(words, num_words, i); + if(!keyword) break; + + if(!category && strncmp(keyword, PROCESS_FILTER_CATEGORY, strlen(PROCESS_FILTER_CATEGORY)) == 0) { + category = find_target_by_name(apps_groups_root_target, &keyword[strlen(PROCESS_FILTER_CATEGORY)]); + if(!category) { + pluginsd_function_json_error_to_stdout(transaction, HTTP_RESP_BAD_REQUEST, + "No category with that name found."); + return; + } + } + else if(!user && strncmp(keyword, PROCESS_FILTER_USER, strlen(PROCESS_FILTER_USER)) == 0) { + user = find_target_by_name(users_root_target, &keyword[strlen(PROCESS_FILTER_USER)]); + if(!user) { + pluginsd_function_json_error_to_stdout(transaction, HTTP_RESP_BAD_REQUEST, + "No user with that name found."); + return; + } + } + else if(strncmp(keyword, PROCESS_FILTER_GROUP, strlen(PROCESS_FILTER_GROUP)) == 0) { + group = find_target_by_name(groups_root_target, &keyword[strlen(PROCESS_FILTER_GROUP)]); + if(!group) { + pluginsd_function_json_error_to_stdout(transaction, HTTP_RESP_BAD_REQUEST, + "No group with that name found."); + return; + } + } + else if(!process_name && strncmp(keyword, PROCESS_FILTER_PROCESS, strlen(PROCESS_FILTER_PROCESS)) == 0) { + process_name = &keyword[strlen(PROCESS_FILTER_PROCESS)]; + } + else if(!pid && strncmp(keyword, PROCESS_FILTER_PID, strlen(PROCESS_FILTER_PID)) == 0) { + pid = str2i(&keyword[strlen(PROCESS_FILTER_PID)]); + filter_pid = true; + } + else if(!uid && strncmp(keyword, PROCESS_FILTER_UID, strlen(PROCESS_FILTER_UID)) == 0) { + uid = str2i(&keyword[strlen(PROCESS_FILTER_UID)]); + filter_uid = true; + } + else if(!gid && strncmp(keyword, PROCESS_FILTER_GID, strlen(PROCESS_FILTER_GID)) == 0) { + gid = str2i(&keyword[strlen(PROCESS_FILTER_GID)]); + filter_gid = true; + } + else if(strcmp(keyword, "help") == 0) { + apps_plugin_function_processes_help(transaction); + return; + } + else { + char msg[PLUGINSD_LINE_MAX]; + snprintfz(msg, PLUGINSD_LINE_MAX, "Invalid parameter '%s'", keyword); + pluginsd_function_json_error_to_stdout(transaction, HTTP_RESP_BAD_REQUEST, msg); + return; + } + } + + time_t expires = now_realtime_sec() + update_every; + + unsigned int cpu_divisor = time_factor * RATES_DETAIL / 100; + unsigned int memory_divisor = 1024; + unsigned int io_divisor = 1024 * RATES_DETAIL; + + BUFFER *wb = buffer_create(PLUGINSD_LINE_MAX, NULL); + buffer_json_initialize(wb, "\"", "\"", 0, true, BUFFER_JSON_OPTIONS_NEWLINE_ON_ARRAY_ITEMS); + buffer_json_member_add_uint64(wb, "status", HTTP_RESP_OK); + buffer_json_member_add_string(wb, "type", "table"); + buffer_json_member_add_time_t(wb, "update_every", update_every); + buffer_json_member_add_string(wb, "help", APPS_PLUGIN_PROCESSES_FUNCTION_DESCRIPTION); + buffer_json_member_add_array(wb, "data"); + + NETDATA_DOUBLE + UserCPU_max = 0.0 + , SysCPU_max = 0.0 + , GuestCPU_max = 0.0 + , CUserCPU_max = 0.0 + , CSysCPU_max = 0.0 + , CGuestCPU_max = 0.0 + , CPU_max = 0.0 + , VMSize_max = 0.0 + , RSS_max = 0.0 + , Shared_max = 0.0 + , Swap_max = 0.0 + , Memory_max = 0.0 + , FDsLimitPercent_max = 0.0 + ; + + unsigned long long + Processes_max = 0 + , Threads_max = 0 + , VoluntaryCtxtSwitches_max = 0 + , NonVoluntaryCtxtSwitches_max = 0 + , Uptime_max = 0 + , MinFlt_max = 0 + , CMinFlt_max = 0 + , TMinFlt_max = 0 + , MajFlt_max = 0 + , CMajFlt_max = 0 + , TMajFlt_max = 0 + , PReads_max = 0 + , PWrites_max = 0 + , RCalls_max = 0 + , WCalls_max = 0 + , Files_max = 0 + , Pipes_max = 0 + , Sockets_max = 0 + , iNotiFDs_max = 0 + , EventFDs_max = 0 + , TimerFDs_max = 0 + , SigFDs_max = 0 + , EvPollFDs_max = 0 + , OtherFDs_max = 0 + , FDs_max = 0 + ; + +#ifndef __FreeBSD__ + unsigned long long + LReads_max = 0 + , LWrites_max = 0 + ; +#endif + + int rows= 0; + for(p = root_of_pids; p ; p = p->next) { + if(!p->updated) + continue; + + if(category && p->target != category) + continue; + + if(user && p->user_target != user) + continue; + + if(group && p->group_target != group) + continue; + + if(process_name && ((strcmp(p->comm, process_name) != 0 && !p->parent) || (p->parent && strcmp(p->comm, process_name) != 0 && strcmp(p->parent->comm, process_name) != 0))) + continue; + + if(filter_pid && p->pid != pid && p->ppid != pid) + continue; + + if(filter_uid && p->uid != uid) + continue; + + if(filter_gid && p->gid != gid) + continue; + + rows++; + + buffer_json_add_array_item_array(wb); // for each pid + + // IMPORTANT! + // THE ORDER SHOULD BE THE SAME WITH THE FIELDS! + + // pid + buffer_json_add_array_item_uint64(wb, p->pid); + + // cmd + buffer_json_add_array_item_string(wb, p->comm); + + // cmdline + if (enable_function_cmdline) { + buffer_json_add_array_item_string(wb, (p->cmdline && *p->cmdline) ? p->cmdline : p->comm); + } + + // ppid + buffer_json_add_array_item_uint64(wb, p->ppid); + + // category + buffer_json_add_array_item_string(wb, p->target ? p->target->name : "-"); + + // user + buffer_json_add_array_item_string(wb, p->user_target ? p->user_target->name : "-"); + + // uid + buffer_json_add_array_item_uint64(wb, p->uid); + + // group + buffer_json_add_array_item_string(wb, p->group_target ? p->group_target->name : "-"); + + // gid + buffer_json_add_array_item_uint64(wb, p->gid); + + // CPU utilization % + add_value_field_ndd_with_max(wb, CPU, (NETDATA_DOUBLE)(p->utime + p->stime + p->gtime + p->cutime + p->cstime + p->cgtime) / cpu_divisor); + add_value_field_ndd_with_max(wb, UserCPU, (NETDATA_DOUBLE)(p->utime) / cpu_divisor); + add_value_field_ndd_with_max(wb, SysCPU, (NETDATA_DOUBLE)(p->stime) / cpu_divisor); + add_value_field_ndd_with_max(wb, GuestCPU, (NETDATA_DOUBLE)(p->gtime) / cpu_divisor); + add_value_field_ndd_with_max(wb, CUserCPU, (NETDATA_DOUBLE)(p->cutime) / cpu_divisor); + add_value_field_ndd_with_max(wb, CSysCPU, (NETDATA_DOUBLE)(p->cstime) / cpu_divisor); + add_value_field_ndd_with_max(wb, CGuestCPU, (NETDATA_DOUBLE)(p->cgtime) / cpu_divisor); + + add_value_field_llu_with_max(wb, VoluntaryCtxtSwitches, p->status_voluntary_ctxt_switches / RATES_DETAIL); + add_value_field_llu_with_max(wb, NonVoluntaryCtxtSwitches, p->status_nonvoluntary_ctxt_switches / RATES_DETAIL); + + // memory MiB + if(MemTotal) + add_value_field_ndd_with_max(wb, Memory, (NETDATA_DOUBLE)p->status_vmrss * 100.0 / (NETDATA_DOUBLE)MemTotal); + + add_value_field_ndd_with_max(wb, RSS, (NETDATA_DOUBLE)p->status_vmrss / memory_divisor); + add_value_field_ndd_with_max(wb, Shared, (NETDATA_DOUBLE)p->status_vmshared / memory_divisor); + add_value_field_ndd_with_max(wb, VMSize, (NETDATA_DOUBLE)p->status_vmsize / memory_divisor); + add_value_field_ndd_with_max(wb, Swap, (NETDATA_DOUBLE)p->status_vmswap / memory_divisor); + + // Physical I/O + add_value_field_llu_with_max(wb, PReads, p->io_storage_bytes_read / io_divisor); + add_value_field_llu_with_max(wb, PWrites, p->io_storage_bytes_written / io_divisor); + + // Logical I/O +#ifndef __FreeBSD__ + add_value_field_llu_with_max(wb, LReads, p->io_logical_bytes_read / io_divisor); + add_value_field_llu_with_max(wb, LWrites, p->io_logical_bytes_written / io_divisor); +#endif + + // I/O calls + add_value_field_llu_with_max(wb, RCalls, p->io_read_calls / RATES_DETAIL); + add_value_field_llu_with_max(wb, WCalls, p->io_write_calls / RATES_DETAIL); + + // minor page faults + add_value_field_llu_with_max(wb, MinFlt, p->minflt / RATES_DETAIL); + add_value_field_llu_with_max(wb, CMinFlt, p->cminflt / RATES_DETAIL); + add_value_field_llu_with_max(wb, TMinFlt, (p->minflt + p->cminflt) / RATES_DETAIL); + + // major page faults + add_value_field_llu_with_max(wb, MajFlt, p->majflt / RATES_DETAIL); + add_value_field_llu_with_max(wb, CMajFlt, p->cmajflt / RATES_DETAIL); + add_value_field_llu_with_max(wb, TMajFlt, (p->majflt + p->cmajflt) / RATES_DETAIL); + + // open file descriptors + add_value_field_ndd_with_max(wb, FDsLimitPercent, p->openfds_limits_percent); + add_value_field_llu_with_max(wb, FDs, pid_openfds_sum(p)); + add_value_field_llu_with_max(wb, Files, p->openfds.files); + add_value_field_llu_with_max(wb, Pipes, p->openfds.pipes); + add_value_field_llu_with_max(wb, Sockets, p->openfds.sockets); + add_value_field_llu_with_max(wb, iNotiFDs, p->openfds.inotifies); + add_value_field_llu_with_max(wb, EventFDs, p->openfds.eventfds); + add_value_field_llu_with_max(wb, TimerFDs, p->openfds.timerfds); + add_value_field_llu_with_max(wb, SigFDs, p->openfds.signalfds); + add_value_field_llu_with_max(wb, EvPollFDs, p->openfds.eventpolls); + add_value_field_llu_with_max(wb, OtherFDs, p->openfds.other); + + + // processes, threads, uptime + add_value_field_llu_with_max(wb, Processes, p->children_count); + add_value_field_llu_with_max(wb, Threads, p->num_threads); + add_value_field_llu_with_max(wb, Uptime, p->uptime); + + buffer_json_array_close(wb); // for each pid + } + + buffer_json_array_close(wb); // data + buffer_json_member_add_object(wb, "columns"); + + { + int field_id = 0; + + // IMPORTANT! + // THE ORDER SHOULD BE THE SAME WITH THE VALUES! + // wb, key, name, visible, type, visualization, transform, decimal_points, units, max, sort, sortable, sticky, unique_key, pointer_to, summary, range + buffer_rrdf_table_add_field(wb, field_id++, "PID", "Process ID", RRDF_FIELD_TYPE_INTEGER, + RRDF_FIELD_VISUAL_VALUE, RRDF_FIELD_TRANSFORM_NUMBER, 0, NULL, NAN, + RRDF_FIELD_SORT_ASCENDING, NULL, RRDF_FIELD_SUMMARY_COUNT, + RRDF_FIELD_FILTER_MULTISELECT, + RRDF_FIELD_OPTS_VISIBLE | RRDF_FIELD_OPTS_STICKY | + RRDF_FIELD_OPTS_UNIQUE_KEY, NULL); + + buffer_rrdf_table_add_field(wb, field_id++, "Cmd", "Process Name", RRDF_FIELD_TYPE_STRING, + RRDF_FIELD_VISUAL_VALUE, RRDF_FIELD_TRANSFORM_NONE, 0, NULL, NAN, + RRDF_FIELD_SORT_ASCENDING, NULL, RRDF_FIELD_SUMMARY_COUNT, + RRDF_FIELD_FILTER_MULTISELECT, + RRDF_FIELD_OPTS_VISIBLE | RRDF_FIELD_OPTS_STICKY, NULL); + + if (enable_function_cmdline) { + buffer_rrdf_table_add_field(wb, field_id++, "CmdLine", "Command Line", RRDF_FIELD_TYPE_STRING, + RRDF_FIELD_VISUAL_VALUE, RRDF_FIELD_TRANSFORM_NONE, 0, + NULL, NAN, RRDF_FIELD_SORT_ASCENDING, NULL, RRDF_FIELD_SUMMARY_COUNT, + RRDF_FIELD_FILTER_MULTISELECT, + RRDF_FIELD_OPTS_NONE, NULL); + } + + buffer_rrdf_table_add_field(wb, field_id++, "PPID", "Parent Process ID", RRDF_FIELD_TYPE_INTEGER, + RRDF_FIELD_VISUAL_VALUE, RRDF_FIELD_TRANSFORM_NUMBER, 0, NULL, + NAN, RRDF_FIELD_SORT_ASCENDING, "PID", RRDF_FIELD_SUMMARY_COUNT, + RRDF_FIELD_FILTER_MULTISELECT, + RRDF_FIELD_OPTS_NONE, NULL); + buffer_rrdf_table_add_field(wb, field_id++, "Category", "Category (apps_groups.conf)", RRDF_FIELD_TYPE_STRING, + RRDF_FIELD_VISUAL_VALUE, + RRDF_FIELD_TRANSFORM_NONE, + 0, NULL, NAN, RRDF_FIELD_SORT_ASCENDING, NULL, RRDF_FIELD_SUMMARY_COUNT, + RRDF_FIELD_FILTER_MULTISELECT, + RRDF_FIELD_OPTS_VISIBLE | RRDF_FIELD_OPTS_STICKY, NULL); + buffer_rrdf_table_add_field(wb, field_id++, "User", "User Owner", RRDF_FIELD_TYPE_STRING, + RRDF_FIELD_VISUAL_VALUE, RRDF_FIELD_TRANSFORM_NONE, 0, NULL, NAN, + RRDF_FIELD_SORT_ASCENDING, NULL, RRDF_FIELD_SUMMARY_COUNT, + RRDF_FIELD_FILTER_MULTISELECT, + RRDF_FIELD_OPTS_VISIBLE, NULL); + buffer_rrdf_table_add_field(wb, field_id++, "Uid", "User ID", RRDF_FIELD_TYPE_INTEGER, RRDF_FIELD_VISUAL_VALUE, + RRDF_FIELD_TRANSFORM_NUMBER, 0, NULL, NAN, + RRDF_FIELD_SORT_ASCENDING, NULL, RRDF_FIELD_SUMMARY_COUNT, + RRDF_FIELD_FILTER_MULTISELECT, + RRDF_FIELD_OPTS_NONE, NULL); + buffer_rrdf_table_add_field(wb, field_id++, "Group", "Group Owner", RRDF_FIELD_TYPE_STRING, + RRDF_FIELD_VISUAL_VALUE, RRDF_FIELD_TRANSFORM_NONE, 0, NULL, NAN, + RRDF_FIELD_SORT_ASCENDING, NULL, RRDF_FIELD_SUMMARY_COUNT, + RRDF_FIELD_FILTER_MULTISELECT, + RRDF_FIELD_OPTS_NONE, NULL); + buffer_rrdf_table_add_field(wb, field_id++, "Gid", "Group ID", RRDF_FIELD_TYPE_INTEGER, RRDF_FIELD_VISUAL_VALUE, + RRDF_FIELD_TRANSFORM_NUMBER, 0, NULL, NAN, + RRDF_FIELD_SORT_ASCENDING, NULL, RRDF_FIELD_SUMMARY_COUNT, + RRDF_FIELD_FILTER_MULTISELECT, + RRDF_FIELD_OPTS_NONE, NULL); + + // CPU utilization + buffer_rrdf_table_add_field(wb, field_id++, "CPU", "Total CPU Time (100% = 1 core)", + RRDF_FIELD_TYPE_BAR_WITH_INTEGER, RRDF_FIELD_VISUAL_BAR, + RRDF_FIELD_TRANSFORM_NUMBER, 2, "%", CPU_max, RRDF_FIELD_SORT_DESCENDING, NULL, + RRDF_FIELD_SUMMARY_SUM, RRDF_FIELD_FILTER_RANGE, + RRDF_FIELD_OPTS_VISIBLE, NULL); + buffer_rrdf_table_add_field(wb, field_id++, "UserCPU", "User CPU time (100% = 1 core)", + RRDF_FIELD_TYPE_BAR_WITH_INTEGER, + RRDF_FIELD_VISUAL_BAR, RRDF_FIELD_TRANSFORM_NUMBER, 2, "%", UserCPU_max, + RRDF_FIELD_SORT_DESCENDING, NULL, RRDF_FIELD_SUMMARY_SUM, RRDF_FIELD_FILTER_RANGE, + RRDF_FIELD_OPTS_NONE, NULL); + buffer_rrdf_table_add_field(wb, field_id++, "SysCPU", "System CPU Time (100% = 1 core)", + RRDF_FIELD_TYPE_BAR_WITH_INTEGER, + RRDF_FIELD_VISUAL_BAR, RRDF_FIELD_TRANSFORM_NUMBER, 2, "%", SysCPU_max, + RRDF_FIELD_SORT_DESCENDING, NULL, RRDF_FIELD_SUMMARY_SUM, RRDF_FIELD_FILTER_RANGE, + RRDF_FIELD_OPTS_NONE, NULL); + buffer_rrdf_table_add_field(wb, field_id++, "GuestCPU", "Guest CPU Time (100% = 1 core)", + RRDF_FIELD_TYPE_BAR_WITH_INTEGER, + RRDF_FIELD_VISUAL_BAR, RRDF_FIELD_TRANSFORM_NUMBER, 2, "%", GuestCPU_max, + RRDF_FIELD_SORT_DESCENDING, NULL, RRDF_FIELD_SUMMARY_SUM, RRDF_FIELD_FILTER_RANGE, + RRDF_FIELD_OPTS_NONE, NULL); + buffer_rrdf_table_add_field(wb, field_id++, "CUserCPU", "Children User CPU Time (100% = 1 core)", + RRDF_FIELD_TYPE_BAR_WITH_INTEGER, RRDF_FIELD_VISUAL_BAR, + RRDF_FIELD_TRANSFORM_NUMBER, 2, "%", CUserCPU_max, RRDF_FIELD_SORT_DESCENDING, NULL, + RRDF_FIELD_SUMMARY_SUM, RRDF_FIELD_FILTER_RANGE, + RRDF_FIELD_OPTS_NONE, NULL); + buffer_rrdf_table_add_field(wb, field_id++, "CSysCPU", "Children System CPU Time (100% = 1 core)", + RRDF_FIELD_TYPE_BAR_WITH_INTEGER, RRDF_FIELD_VISUAL_BAR, + RRDF_FIELD_TRANSFORM_NUMBER, 2, "%", CSysCPU_max, RRDF_FIELD_SORT_DESCENDING, NULL, + RRDF_FIELD_SUMMARY_SUM, RRDF_FIELD_FILTER_RANGE, + RRDF_FIELD_OPTS_NONE, NULL); + buffer_rrdf_table_add_field(wb, field_id++, "CGuestCPU", "Children Guest CPU Time (100% = 1 core)", + RRDF_FIELD_TYPE_BAR_WITH_INTEGER, RRDF_FIELD_VISUAL_BAR, + RRDF_FIELD_TRANSFORM_NUMBER, 2, "%", CGuestCPU_max, RRDF_FIELD_SORT_DESCENDING, + NULL, + RRDF_FIELD_SUMMARY_SUM, RRDF_FIELD_FILTER_RANGE, RRDF_FIELD_OPTS_NONE, NULL); + + // CPU context switches + buffer_rrdf_table_add_field(wb, field_id++, "vCtxSwitch", "Voluntary Context Switches", + RRDF_FIELD_TYPE_BAR_WITH_INTEGER, + RRDF_FIELD_VISUAL_BAR, RRDF_FIELD_TRANSFORM_NUMBER, 2, "switches/s", + VoluntaryCtxtSwitches_max, RRDF_FIELD_SORT_DESCENDING, NULL, + RRDF_FIELD_SUMMARY_SUM, RRDF_FIELD_FILTER_RANGE, RRDF_FIELD_OPTS_NONE, NULL); + buffer_rrdf_table_add_field(wb, field_id++, "iCtxSwitch", "Involuntary Context Switches", + RRDF_FIELD_TYPE_BAR_WITH_INTEGER, + RRDF_FIELD_VISUAL_BAR, RRDF_FIELD_TRANSFORM_NUMBER, 2, "switches/s", + NonVoluntaryCtxtSwitches_max, RRDF_FIELD_SORT_DESCENDING, NULL, + RRDF_FIELD_SUMMARY_SUM, RRDF_FIELD_FILTER_RANGE, RRDF_FIELD_OPTS_NONE, NULL); + + // memory + if (MemTotal) + buffer_rrdf_table_add_field(wb, field_id++, "Memory", "Memory Percentage", RRDF_FIELD_TYPE_BAR_WITH_INTEGER, + RRDF_FIELD_VISUAL_BAR, + RRDF_FIELD_TRANSFORM_NUMBER, 2, "%", 100.0, RRDF_FIELD_SORT_DESCENDING, NULL, + RRDF_FIELD_SUMMARY_SUM, RRDF_FIELD_FILTER_RANGE, + RRDF_FIELD_OPTS_VISIBLE, NULL); + + buffer_rrdf_table_add_field(wb, field_id++, "Resident", "Resident Set Size", RRDF_FIELD_TYPE_BAR_WITH_INTEGER, + RRDF_FIELD_VISUAL_BAR, + RRDF_FIELD_TRANSFORM_NUMBER, + 2, "MiB", RSS_max, RRDF_FIELD_SORT_DESCENDING, NULL, RRDF_FIELD_SUMMARY_SUM, + RRDF_FIELD_FILTER_RANGE, + RRDF_FIELD_OPTS_VISIBLE, NULL); + buffer_rrdf_table_add_field(wb, field_id++, "Shared", "Shared Pages", RRDF_FIELD_TYPE_BAR_WITH_INTEGER, + RRDF_FIELD_VISUAL_BAR, RRDF_FIELD_TRANSFORM_NUMBER, 2, + "MiB", Shared_max, RRDF_FIELD_SORT_DESCENDING, NULL, RRDF_FIELD_SUMMARY_SUM, + RRDF_FIELD_FILTER_RANGE, + RRDF_FIELD_OPTS_VISIBLE, NULL); + buffer_rrdf_table_add_field(wb, field_id++, "Virtual", "Virtual Memory Size", RRDF_FIELD_TYPE_BAR_WITH_INTEGER, + RRDF_FIELD_VISUAL_BAR, + RRDF_FIELD_TRANSFORM_NUMBER, 2, "MiB", VMSize_max, RRDF_FIELD_SORT_DESCENDING, NULL, + RRDF_FIELD_SUMMARY_SUM, RRDF_FIELD_FILTER_RANGE, + RRDF_FIELD_OPTS_VISIBLE, NULL); + buffer_rrdf_table_add_field(wb, field_id++, "Swap", "Swap Memory", RRDF_FIELD_TYPE_BAR_WITH_INTEGER, + RRDF_FIELD_VISUAL_BAR, RRDF_FIELD_TRANSFORM_NUMBER, 2, + "MiB", + Swap_max, RRDF_FIELD_SORT_DESCENDING, NULL, RRDF_FIELD_SUMMARY_SUM, + RRDF_FIELD_FILTER_RANGE, + RRDF_FIELD_OPTS_NONE, NULL); + + // Physical I/O + buffer_rrdf_table_add_field(wb, field_id++, "PReads", "Physical I/O Reads", RRDF_FIELD_TYPE_BAR_WITH_INTEGER, + RRDF_FIELD_VISUAL_BAR, RRDF_FIELD_TRANSFORM_NUMBER, + 2, "KiB/s", PReads_max, RRDF_FIELD_SORT_DESCENDING, NULL, RRDF_FIELD_SUMMARY_SUM, + RRDF_FIELD_FILTER_RANGE, + RRDF_FIELD_OPTS_VISIBLE, NULL); + buffer_rrdf_table_add_field(wb, field_id++, "PWrites", "Physical I/O Writes", RRDF_FIELD_TYPE_BAR_WITH_INTEGER, + RRDF_FIELD_VISUAL_BAR, + RRDF_FIELD_TRANSFORM_NUMBER, 2, "KiB/s", PWrites_max, RRDF_FIELD_SORT_DESCENDING, + NULL, RRDF_FIELD_SUMMARY_SUM, RRDF_FIELD_FILTER_RANGE, + RRDF_FIELD_OPTS_VISIBLE, NULL); + + // Logical I/O +#ifndef __FreeBSD__ + buffer_rrdf_table_add_field(wb, field_id++, "LReads", "Logical I/O Reads", RRDF_FIELD_TYPE_BAR_WITH_INTEGER, + RRDF_FIELD_VISUAL_BAR, RRDF_FIELD_TRANSFORM_NUMBER, + 2, "KiB/s", LReads_max, RRDF_FIELD_SORT_DESCENDING, NULL, RRDF_FIELD_SUMMARY_SUM, + RRDF_FIELD_FILTER_RANGE, + RRDF_FIELD_OPTS_NONE, NULL); + buffer_rrdf_table_add_field(wb, field_id++, "LWrites", "Logical I/O Writes", RRDF_FIELD_TYPE_BAR_WITH_INTEGER, + RRDF_FIELD_VISUAL_BAR, + RRDF_FIELD_TRANSFORM_NUMBER, + 2, "KiB/s", LWrites_max, RRDF_FIELD_SORT_DESCENDING, NULL, RRDF_FIELD_SUMMARY_SUM, + RRDF_FIELD_FILTER_RANGE, + RRDF_FIELD_OPTS_NONE, NULL); +#endif + + // I/O calls + buffer_rrdf_table_add_field(wb, field_id++, "RCalls", "I/O Read Calls", RRDF_FIELD_TYPE_BAR_WITH_INTEGER, + RRDF_FIELD_VISUAL_BAR, RRDF_FIELD_TRANSFORM_NUMBER, 2, + "calls/s", RCalls_max, RRDF_FIELD_SORT_DESCENDING, NULL, RRDF_FIELD_SUMMARY_SUM, + RRDF_FIELD_FILTER_RANGE, + RRDF_FIELD_OPTS_NONE, NULL); + buffer_rrdf_table_add_field(wb, field_id++, "WCalls", "I/O Write Calls", RRDF_FIELD_TYPE_BAR_WITH_INTEGER, + RRDF_FIELD_VISUAL_BAR, RRDF_FIELD_TRANSFORM_NUMBER, 2, + "calls/s", WCalls_max, RRDF_FIELD_SORT_DESCENDING, NULL, RRDF_FIELD_SUMMARY_SUM, + RRDF_FIELD_FILTER_RANGE, + RRDF_FIELD_OPTS_NONE, NULL); + + // minor page faults + buffer_rrdf_table_add_field(wb, field_id++, "MinFlt", "Minor Page Faults/s", RRDF_FIELD_TYPE_BAR_WITH_INTEGER, + RRDF_FIELD_VISUAL_BAR, + RRDF_FIELD_TRANSFORM_NUMBER, + 2, "pgflts/s", MinFlt_max, RRDF_FIELD_SORT_DESCENDING, NULL, RRDF_FIELD_SUMMARY_SUM, + RRDF_FIELD_FILTER_RANGE, + RRDF_FIELD_OPTS_NONE, NULL); + buffer_rrdf_table_add_field(wb, field_id++, "CMinFlt", "Children Minor Page Faults/s", + RRDF_FIELD_TYPE_BAR_WITH_INTEGER, + RRDF_FIELD_VISUAL_BAR, + RRDF_FIELD_TRANSFORM_NUMBER, 2, "pgflts/s", CMinFlt_max, RRDF_FIELD_SORT_DESCENDING, + NULL, RRDF_FIELD_SUMMARY_SUM, RRDF_FIELD_FILTER_RANGE, + RRDF_FIELD_OPTS_NONE, NULL); + buffer_rrdf_table_add_field(wb, field_id++, "TMinFlt", "Total Minor Page Faults/s", + RRDF_FIELD_TYPE_BAR_WITH_INTEGER, RRDF_FIELD_VISUAL_BAR, + RRDF_FIELD_TRANSFORM_NUMBER, 2, "pgflts/s", TMinFlt_max, RRDF_FIELD_SORT_DESCENDING, + NULL, RRDF_FIELD_SUMMARY_SUM, RRDF_FIELD_FILTER_RANGE, + RRDF_FIELD_OPTS_NONE, NULL); + + // major page faults + buffer_rrdf_table_add_field(wb, field_id++, "MajFlt", "Major Page Faults/s", RRDF_FIELD_TYPE_BAR_WITH_INTEGER, + RRDF_FIELD_VISUAL_BAR, + RRDF_FIELD_TRANSFORM_NUMBER, + 2, "pgflts/s", MajFlt_max, RRDF_FIELD_SORT_DESCENDING, NULL, RRDF_FIELD_SUMMARY_SUM, + RRDF_FIELD_FILTER_RANGE, + RRDF_FIELD_OPTS_NONE, NULL); + buffer_rrdf_table_add_field(wb, field_id++, "CMajFlt", "Children Major Page Faults/s", + RRDF_FIELD_TYPE_BAR_WITH_INTEGER, + RRDF_FIELD_VISUAL_BAR, + RRDF_FIELD_TRANSFORM_NUMBER, 2, "pgflts/s", CMajFlt_max, RRDF_FIELD_SORT_DESCENDING, + NULL, RRDF_FIELD_SUMMARY_SUM, RRDF_FIELD_FILTER_RANGE, + RRDF_FIELD_OPTS_NONE, NULL); + buffer_rrdf_table_add_field(wb, field_id++, "TMajFlt", "Total Major Page Faults/s", + RRDF_FIELD_TYPE_BAR_WITH_INTEGER, RRDF_FIELD_VISUAL_BAR, + RRDF_FIELD_TRANSFORM_NUMBER, 2, "pgflts/s", TMajFlt_max, RRDF_FIELD_SORT_DESCENDING, + NULL, RRDF_FIELD_SUMMARY_SUM, RRDF_FIELD_FILTER_RANGE, + RRDF_FIELD_OPTS_NONE, NULL); + + // open file descriptors + buffer_rrdf_table_add_field(wb, field_id++, "FDsLimitPercent", "Percentage of Open Descriptors vs Limits", + RRDF_FIELD_TYPE_BAR_WITH_INTEGER, RRDF_FIELD_VISUAL_BAR, + RRDF_FIELD_TRANSFORM_NUMBER, 2, "%", FDsLimitPercent_max, RRDF_FIELD_SORT_DESCENDING, NULL, + RRDF_FIELD_SUMMARY_MAX, RRDF_FIELD_FILTER_RANGE, + RRDF_FIELD_OPTS_NONE, NULL); + buffer_rrdf_table_add_field(wb, field_id++, "FDs", "All Open File Descriptors", + RRDF_FIELD_TYPE_BAR_WITH_INTEGER, RRDF_FIELD_VISUAL_BAR, + RRDF_FIELD_TRANSFORM_NUMBER, 0, "fds", FDs_max, RRDF_FIELD_SORT_DESCENDING, NULL, + RRDF_FIELD_SUMMARY_SUM, RRDF_FIELD_FILTER_RANGE, + RRDF_FIELD_OPTS_NONE, NULL); + buffer_rrdf_table_add_field(wb, field_id++, "Files", "Open Files", RRDF_FIELD_TYPE_BAR_WITH_INTEGER, + RRDF_FIELD_VISUAL_BAR, RRDF_FIELD_TRANSFORM_NUMBER, 0, + "fds", + Files_max, RRDF_FIELD_SORT_DESCENDING, NULL, RRDF_FIELD_SUMMARY_SUM, + RRDF_FIELD_FILTER_RANGE, + RRDF_FIELD_OPTS_NONE, NULL); + buffer_rrdf_table_add_field(wb, field_id++, "Pipes", "Open Pipes", RRDF_FIELD_TYPE_BAR_WITH_INTEGER, + RRDF_FIELD_VISUAL_BAR, RRDF_FIELD_TRANSFORM_NUMBER, 0, + "fds", + Pipes_max, RRDF_FIELD_SORT_DESCENDING, NULL, RRDF_FIELD_SUMMARY_SUM, + RRDF_FIELD_FILTER_RANGE, + RRDF_FIELD_OPTS_NONE, NULL); + buffer_rrdf_table_add_field(wb, field_id++, "Sockets", "Open Sockets", RRDF_FIELD_TYPE_BAR_WITH_INTEGER, + RRDF_FIELD_VISUAL_BAR, RRDF_FIELD_TRANSFORM_NUMBER, 0, + "fds", Sockets_max, RRDF_FIELD_SORT_DESCENDING, NULL, RRDF_FIELD_SUMMARY_SUM, + RRDF_FIELD_FILTER_RANGE, + RRDF_FIELD_OPTS_NONE, NULL); + buffer_rrdf_table_add_field(wb, field_id++, "iNotiFDs", "Open iNotify Descriptors", + RRDF_FIELD_TYPE_BAR_WITH_INTEGER, RRDF_FIELD_VISUAL_BAR, + RRDF_FIELD_TRANSFORM_NUMBER, 0, "fds", iNotiFDs_max, RRDF_FIELD_SORT_DESCENDING, + NULL, RRDF_FIELD_SUMMARY_SUM, RRDF_FIELD_FILTER_RANGE, + RRDF_FIELD_OPTS_NONE, NULL); + buffer_rrdf_table_add_field(wb, field_id++, "EventFDs", "Open Event Descriptors", + RRDF_FIELD_TYPE_BAR_WITH_INTEGER, RRDF_FIELD_VISUAL_BAR, + RRDF_FIELD_TRANSFORM_NUMBER, 0, "fds", EventFDs_max, RRDF_FIELD_SORT_DESCENDING, + NULL, RRDF_FIELD_SUMMARY_SUM, RRDF_FIELD_FILTER_RANGE, + RRDF_FIELD_OPTS_NONE, NULL); + buffer_rrdf_table_add_field(wb, field_id++, "TimerFDs", "Open Timer Descriptors", + RRDF_FIELD_TYPE_BAR_WITH_INTEGER, RRDF_FIELD_VISUAL_BAR, + RRDF_FIELD_TRANSFORM_NUMBER, 0, "fds", TimerFDs_max, RRDF_FIELD_SORT_DESCENDING, + NULL, RRDF_FIELD_SUMMARY_SUM, RRDF_FIELD_FILTER_RANGE, + RRDF_FIELD_OPTS_NONE, NULL); + buffer_rrdf_table_add_field(wb, field_id++, "SigFDs", "Open Signal Descriptors", + RRDF_FIELD_TYPE_BAR_WITH_INTEGER, RRDF_FIELD_VISUAL_BAR, + RRDF_FIELD_TRANSFORM_NUMBER, 0, "fds", SigFDs_max, RRDF_FIELD_SORT_DESCENDING, NULL, + RRDF_FIELD_SUMMARY_SUM, RRDF_FIELD_FILTER_RANGE, + RRDF_FIELD_OPTS_NONE, NULL); + buffer_rrdf_table_add_field(wb, field_id++, "EvPollFDs", "Open Event Poll Descriptors", + RRDF_FIELD_TYPE_BAR_WITH_INTEGER, + RRDF_FIELD_VISUAL_BAR, RRDF_FIELD_TRANSFORM_NUMBER, 0, "fds", EvPollFDs_max, + RRDF_FIELD_SORT_DESCENDING, NULL, RRDF_FIELD_SUMMARY_SUM, RRDF_FIELD_FILTER_RANGE, + RRDF_FIELD_OPTS_NONE, NULL); + buffer_rrdf_table_add_field(wb, field_id++, "OtherFDs", "Other Open Descriptors", + RRDF_FIELD_TYPE_BAR_WITH_INTEGER, RRDF_FIELD_VISUAL_BAR, + RRDF_FIELD_TRANSFORM_NUMBER, 0, "fds", OtherFDs_max, RRDF_FIELD_SORT_DESCENDING, + NULL, RRDF_FIELD_SUMMARY_SUM, RRDF_FIELD_FILTER_RANGE, + RRDF_FIELD_OPTS_NONE, NULL); + + // processes, threads, uptime + buffer_rrdf_table_add_field(wb, field_id++, "Processes", "Processes", RRDF_FIELD_TYPE_BAR_WITH_INTEGER, + RRDF_FIELD_VISUAL_BAR, RRDF_FIELD_TRANSFORM_NUMBER, 0, + "processes", Processes_max, RRDF_FIELD_SORT_DESCENDING, NULL, + RRDF_FIELD_SUMMARY_SUM, RRDF_FIELD_FILTER_RANGE, + RRDF_FIELD_OPTS_NONE, NULL); + buffer_rrdf_table_add_field(wb, field_id++, "Threads", "Threads", RRDF_FIELD_TYPE_BAR_WITH_INTEGER, + RRDF_FIELD_VISUAL_BAR, RRDF_FIELD_TRANSFORM_NUMBER, 0, + "threads", Threads_max, RRDF_FIELD_SORT_DESCENDING, NULL, RRDF_FIELD_SUMMARY_SUM, + RRDF_FIELD_FILTER_RANGE, + RRDF_FIELD_OPTS_NONE, NULL); + buffer_rrdf_table_add_field(wb, field_id++, "Uptime", "Uptime in seconds", RRDF_FIELD_TYPE_DURATION, + RRDF_FIELD_VISUAL_BAR, RRDF_FIELD_TRANSFORM_DURATION_S, 2, + "seconds", Uptime_max, RRDF_FIELD_SORT_DESCENDING, NULL, RRDF_FIELD_SUMMARY_MAX, + RRDF_FIELD_FILTER_RANGE, + RRDF_FIELD_OPTS_VISIBLE, NULL); + } + buffer_json_object_close(wb); // columns + + buffer_json_member_add_string(wb, "default_sort_column", "CPU"); + + buffer_json_member_add_object(wb, "charts"); + { + // CPU chart + buffer_json_member_add_object(wb, "CPU"); + { + buffer_json_member_add_string(wb, "name", "CPU Utilization"); + buffer_json_member_add_string(wb, "type", "stacked-bar"); + buffer_json_member_add_array(wb, "columns"); + { + buffer_json_add_array_item_string(wb, "UserCPU"); + buffer_json_add_array_item_string(wb, "SysCPU"); + buffer_json_add_array_item_string(wb, "GuestCPU"); + buffer_json_add_array_item_string(wb, "CUserCPU"); + buffer_json_add_array_item_string(wb, "CSysCPU"); + buffer_json_add_array_item_string(wb, "CGuestCPU"); + } + buffer_json_array_close(wb); + } + buffer_json_object_close(wb); + + buffer_json_member_add_object(wb, "CPUCtxSwitches"); + { + buffer_json_member_add_string(wb, "name", "CPU Context Switches"); + buffer_json_member_add_string(wb, "type", "stacked-bar"); + buffer_json_member_add_array(wb, "columns"); + { + buffer_json_add_array_item_string(wb, "vCtxSwitch"); + buffer_json_add_array_item_string(wb, "iCtxSwitch"); + } + buffer_json_array_close(wb); + } + buffer_json_object_close(wb); + + // Memory chart + buffer_json_member_add_object(wb, "Memory"); + { + buffer_json_member_add_string(wb, "name", "Memory"); + buffer_json_member_add_string(wb, "type", "stacked-bar"); + buffer_json_member_add_array(wb, "columns"); + { + buffer_json_add_array_item_string(wb, "Virtual"); + buffer_json_add_array_item_string(wb, "Resident"); + buffer_json_add_array_item_string(wb, "Shared"); + buffer_json_add_array_item_string(wb, "Swap"); + } + buffer_json_array_close(wb); + } + buffer_json_object_close(wb); + + if(MemTotal) { + // Memory chart + buffer_json_member_add_object(wb, "MemoryPercent"); + { + buffer_json_member_add_string(wb, "name", "Memory Percentage"); + buffer_json_member_add_string(wb, "type", "stacked-bar"); + buffer_json_member_add_array(wb, "columns"); + { + buffer_json_add_array_item_string(wb, "Memory"); + } + buffer_json_array_close(wb); + } + buffer_json_object_close(wb); + } + +#ifndef __FreeBSD__ + // I/O Reads chart + buffer_json_member_add_object(wb, "Reads"); + { + buffer_json_member_add_string(wb, "name", "I/O Reads"); + buffer_json_member_add_string(wb, "type", "stacked-bar"); + buffer_json_member_add_array(wb, "columns"); + { + buffer_json_add_array_item_string(wb, "LReads"); + buffer_json_add_array_item_string(wb, "PReads"); + } + buffer_json_array_close(wb); + } + buffer_json_object_close(wb); + + // I/O Writes chart + buffer_json_member_add_object(wb, "Writes"); + { + buffer_json_member_add_string(wb, "name", "I/O Writes"); + buffer_json_member_add_string(wb, "type", "stacked-bar"); + buffer_json_member_add_array(wb, "columns"); + { + buffer_json_add_array_item_string(wb, "LWrites"); + buffer_json_add_array_item_string(wb, "PWrites"); + } + buffer_json_array_close(wb); + } + buffer_json_object_close(wb); + + // Logical I/O chart + buffer_json_member_add_object(wb, "LogicalIO"); + { + buffer_json_member_add_string(wb, "name", "Logical I/O"); + buffer_json_member_add_string(wb, "type", "stacked-bar"); + buffer_json_member_add_array(wb, "columns"); + { + buffer_json_add_array_item_string(wb, "LReads"); + buffer_json_add_array_item_string(wb, "LWrites"); + } + buffer_json_array_close(wb); + } + buffer_json_object_close(wb); +#endif + + // Physical I/O chart + buffer_json_member_add_object(wb, "PhysicalIO"); + { + buffer_json_member_add_string(wb, "name", "Physical I/O"); + buffer_json_member_add_string(wb, "type", "stacked-bar"); + buffer_json_member_add_array(wb, "columns"); + { + buffer_json_add_array_item_string(wb, "PReads"); + buffer_json_add_array_item_string(wb, "PWrites"); + } + buffer_json_array_close(wb); + } + buffer_json_object_close(wb); + + // I/O Calls chart + buffer_json_member_add_object(wb, "IOCalls"); + { + buffer_json_member_add_string(wb, "name", "I/O Calls"); + buffer_json_member_add_string(wb, "type", "stacked-bar"); + buffer_json_member_add_array(wb, "columns"); + { + buffer_json_add_array_item_string(wb, "RCalls"); + buffer_json_add_array_item_string(wb, "WCalls"); + } + buffer_json_array_close(wb); + } + buffer_json_object_close(wb); + + // Minor Page Faults chart + buffer_json_member_add_object(wb, "MinFlt"); + { + buffer_json_member_add_string(wb, "name", "Minor Page Faults"); + buffer_json_member_add_string(wb, "type", "stacked-bar"); + buffer_json_member_add_array(wb, "columns"); + { + buffer_json_add_array_item_string(wb, "MinFlt"); + buffer_json_add_array_item_string(wb, "CMinFlt"); + } + buffer_json_array_close(wb); + } + buffer_json_object_close(wb); + + // Major Page Faults chart + buffer_json_member_add_object(wb, "MajFlt"); + { + buffer_json_member_add_string(wb, "name", "Major Page Faults"); + buffer_json_member_add_string(wb, "type", "stacked-bar"); + buffer_json_member_add_array(wb, "columns"); + { + buffer_json_add_array_item_string(wb, "MajFlt"); + buffer_json_add_array_item_string(wb, "CMajFlt"); + } + buffer_json_array_close(wb); + } + buffer_json_object_close(wb); + + // Threads chart + buffer_json_member_add_object(wb, "Threads"); + { + buffer_json_member_add_string(wb, "name", "Threads"); + buffer_json_member_add_string(wb, "type", "stacked-bar"); + buffer_json_member_add_array(wb, "columns"); + { + buffer_json_add_array_item_string(wb, "Threads"); + } + buffer_json_array_close(wb); + } + buffer_json_object_close(wb); + + // Processes chart + buffer_json_member_add_object(wb, "Processes"); + { + buffer_json_member_add_string(wb, "name", "Processes"); + buffer_json_member_add_string(wb, "type", "stacked-bar"); + buffer_json_member_add_array(wb, "columns"); + { + buffer_json_add_array_item_string(wb, "Processes"); + } + buffer_json_array_close(wb); + } + buffer_json_object_close(wb); + + // FDs chart + buffer_json_member_add_object(wb, "FDs"); + { + buffer_json_member_add_string(wb, "name", "File Descriptors"); + buffer_json_member_add_string(wb, "type", "stacked-bar"); + buffer_json_member_add_array(wb, "columns"); + { + buffer_json_add_array_item_string(wb, "Files"); + buffer_json_add_array_item_string(wb, "Pipes"); + buffer_json_add_array_item_string(wb, "Sockets"); + buffer_json_add_array_item_string(wb, "iNotiFDs"); + buffer_json_add_array_item_string(wb, "EventFDs"); + buffer_json_add_array_item_string(wb, "TimerFDs"); + buffer_json_add_array_item_string(wb, "SigFDs"); + buffer_json_add_array_item_string(wb, "EvPollFDs"); + buffer_json_add_array_item_string(wb, "OtherFDs"); + } + buffer_json_array_close(wb); + } + buffer_json_object_close(wb); + } + buffer_json_object_close(wb); // charts + + buffer_json_member_add_array(wb, "default_charts"); + { + buffer_json_add_array_item_array(wb); + buffer_json_add_array_item_string(wb, "CPU"); + buffer_json_add_array_item_string(wb, "Category"); + buffer_json_array_close(wb); + + buffer_json_add_array_item_array(wb); + buffer_json_add_array_item_string(wb, "Memory"); + buffer_json_add_array_item_string(wb, "Category"); + buffer_json_array_close(wb); + } + buffer_json_array_close(wb); + + buffer_json_member_add_object(wb, "group_by"); + { + // group by PID + buffer_json_member_add_object(wb, "PID"); + { + buffer_json_member_add_string(wb, "name", "Process Tree by PID"); + buffer_json_member_add_array(wb, "columns"); + { + buffer_json_add_array_item_string(wb, "PPID"); + } + buffer_json_array_close(wb); + } + buffer_json_object_close(wb); + + // group by Category + buffer_json_member_add_object(wb, "Category"); + { + buffer_json_member_add_string(wb, "name", "Process Tree by Category"); + buffer_json_member_add_array(wb, "columns"); + { + buffer_json_add_array_item_string(wb, "Category"); + buffer_json_add_array_item_string(wb, "PPID"); + } + buffer_json_array_close(wb); + } + buffer_json_object_close(wb); + + // group by User + buffer_json_member_add_object(wb, "User"); + { + buffer_json_member_add_string(wb, "name", "Process Tree by User"); + buffer_json_member_add_array(wb, "columns"); + { + buffer_json_add_array_item_string(wb, "User"); + buffer_json_add_array_item_string(wb, "PPID"); + } + buffer_json_array_close(wb); + } + buffer_json_object_close(wb); + + // group by Group + buffer_json_member_add_object(wb, "Group"); + { + buffer_json_member_add_string(wb, "name", "Process Tree by Group"); + buffer_json_member_add_array(wb, "columns"); + { + buffer_json_add_array_item_string(wb, "Group"); + buffer_json_add_array_item_string(wb, "PPID"); + } + buffer_json_array_close(wb); + } + buffer_json_object_close(wb); + } + buffer_json_object_close(wb); // group_by + + buffer_json_member_add_time_t(wb, "expires", expires); + buffer_json_finalize(wb); + + pluginsd_function_result_to_stdout(transaction, HTTP_RESP_OK, "application/json", expires, wb); + + buffer_free(wb); +} + +static bool apps_plugin_exit = false; + +int main(int argc, char **argv) { + clocks_init(); + nd_log_initialize_for_external_plugins("apps.plugin"); + + pagesize = (size_t)sysconf(_SC_PAGESIZE); + + bool send_resource_usage = true; + { + const char *s = getenv("NETDATA_INTERNALS_MONITORING"); + if(s && *s && strcmp(s, "NO") == 0) + send_resource_usage = false; + } + + // since apps.plugin runs as root, prevent it from opening symbolic links + procfile_open_flags = O_RDONLY|O_NOFOLLOW; + + netdata_configured_host_prefix = getenv("NETDATA_HOST_PREFIX"); + if(verify_netdata_host_prefix(true) == -1) exit(1); + + user_config_dir = getenv("NETDATA_USER_CONFIG_DIR"); + if(user_config_dir == NULL) { + // netdata_log_info("NETDATA_CONFIG_DIR is not passed from netdata"); + user_config_dir = CONFIG_DIR; + } + // else netdata_log_info("Found NETDATA_USER_CONFIG_DIR='%s'", user_config_dir); + + stock_config_dir = getenv("NETDATA_STOCK_CONFIG_DIR"); + if(stock_config_dir == NULL) { + // netdata_log_info("NETDATA_CONFIG_DIR is not passed from netdata"); + stock_config_dir = LIBCONFIG_DIR; + } + // else netdata_log_info("Found NETDATA_USER_CONFIG_DIR='%s'", user_config_dir); + +#ifdef NETDATA_INTERNAL_CHECKS + if(debug_flags != 0) { + struct rlimit rl = { RLIM_INFINITY, RLIM_INFINITY }; + if(setrlimit(RLIMIT_CORE, &rl) != 0) + netdata_log_info("Cannot request unlimited core dumps for debugging... Proceeding anyway..."); +#ifdef HAVE_SYS_PRCTL_H + prctl(PR_SET_DUMPABLE, 1, 0, 0, 0); +#endif + } +#endif /* NETDATA_INTERNAL_CHECKS */ + + procfile_adaptive_initial_allocation = 1; + + get_system_HZ(); +#ifdef __FreeBSD__ + time_factor = 1000000ULL / RATES_DETAIL; // FreeBSD uses usecs +#else + time_factor = system_hz; // Linux uses clock ticks +#endif + + get_system_pid_max(); + get_system_cpus_uncached(); + + parse_args(argc, argv); + + if(!check_capabilities() && !am_i_running_as_root() && !check_proc_1_io()) { + uid_t uid = getuid(), euid = geteuid(); +#ifdef HAVE_CAPABILITY + netdata_log_error("apps.plugin should either run as root (now running with uid %u, euid %u) or have special capabilities. " + "Without these, apps.plugin cannot report disk I/O utilization of other processes. " + "To enable capabilities run: sudo setcap cap_dac_read_search,cap_sys_ptrace+ep %s; " + "To enable setuid to root run: sudo chown root:netdata %s; sudo chmod 4750 %s; " + , uid, euid, argv[0], argv[0], argv[0] + ); +#else + netdata_log_error("apps.plugin should either run as root (now running with uid %u, euid %u) or have special capabilities. " + "Without these, apps.plugin cannot report disk I/O utilization of other processes. " + "Your system does not support capabilities. " + "To enable setuid to root run: sudo chown root:netdata %s; sudo chmod 4750 %s; " + , uid, euid, argv[0], argv[0] + ); +#endif + } + + netdata_log_info("started on pid %d", getpid()); + + snprintfz(all_user_ids.filename, FILENAME_MAX, "%s/etc/passwd", netdata_configured_host_prefix); + debug_log("passwd file: '%s'", all_user_ids.filename); + + snprintfz(all_group_ids.filename, FILENAME_MAX, "%s/etc/group", netdata_configured_host_prefix); + debug_log("group file: '%s'", all_group_ids.filename); + +#if (ALL_PIDS_ARE_READ_INSTANTLY == 0) + all_pids_sortlist = callocz(sizeof(pid_t), (size_t)pid_max + 1); +#endif + + all_pids = callocz(sizeof(struct pid_stat *), (size_t) pid_max + 1); + + // ------------------------------------------------------------------------ + // the event loop for functions + + struct functions_evloop_globals *wg = + functions_evloop_init(1, "APPS", &apps_and_stdout_mutex, &apps_plugin_exit); + + functions_evloop_add_function(wg, "processes", function_processes, PLUGINS_FUNCTIONS_TIMEOUT_DEFAULT); + + // ------------------------------------------------------------------------ + + netdata_mutex_lock(&apps_and_stdout_mutex); + APPS_PLUGIN_GLOBAL_FUNCTIONS(); + + usec_t step = update_every * USEC_PER_SEC; + global_iterations_counter = 1; + heartbeat_t hb; + heartbeat_init(&hb); + for(; !apps_plugin_exit ; global_iterations_counter++) { + netdata_mutex_unlock(&apps_and_stdout_mutex); + +#ifdef NETDATA_PROFILING +#warning "compiling for profiling" + static int profiling_count=0; + profiling_count++; + if(unlikely(profiling_count > 2000)) exit(0); + usec_t dt = update_every * USEC_PER_SEC; +#else + usec_t dt = heartbeat_next(&hb, step); +#endif + netdata_mutex_lock(&apps_and_stdout_mutex); + + struct pollfd pollfd = { .fd = fileno(stdout), .events = POLLERR }; + if (unlikely(poll(&pollfd, 1, 0) < 0)) { + netdata_mutex_unlock(&apps_and_stdout_mutex); + fatal("Cannot check if a pipe is available"); + } + if (unlikely(pollfd.revents & POLLERR)) { + netdata_mutex_unlock(&apps_and_stdout_mutex); + fatal("Received error on read pipe."); + } + + if(global_iterations_counter % 10 == 0) + get_MemTotal(); + + if(!collect_data_for_all_processes()) { + netdata_log_error("Cannot collect /proc data for running processes. Disabling apps.plugin..."); + printf("DISABLE\n"); + netdata_mutex_unlock(&apps_and_stdout_mutex); + exit(1); + } + + calculate_netdata_statistics(); + normalize_utilization(apps_groups_root_target); + + if(send_resource_usage) + send_resource_usage_to_netdata(dt); + +#ifndef __FreeBSD__ + send_proc_states_count(dt); +#endif + + send_charts_updates_to_netdata(apps_groups_root_target, "app", "app_group", "Apps"); + send_collected_data_to_netdata(apps_groups_root_target, "app", dt); + + if (enable_users_charts) { + send_charts_updates_to_netdata(users_root_target, "user", "user", "Users"); + send_collected_data_to_netdata(users_root_target, "user", dt); + } + + if (enable_groups_charts) { + send_charts_updates_to_netdata(groups_root_target, "usergroup", "user_group", "User Groups"); + send_collected_data_to_netdata(groups_root_target, "usergroup", dt); + } + + fflush(stdout); + + show_guest_time_old = show_guest_time; + + debug_log("done Loop No %zu", global_iterations_counter); + } + netdata_mutex_unlock(&apps_and_stdout_mutex); +} |