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-rw-r--r--collectors/apps.plugin/apps_plugin.c3850
1 files changed, 3850 insertions, 0 deletions
diff --git a/collectors/apps.plugin/apps_plugin.c b/collectors/apps.plugin/apps_plugin.c
new file mode 100644
index 0000000..9f39267
--- /dev/null
+++ b/collectors/apps.plugin/apps_plugin.c
@@ -0,0 +1,3850 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+/*
+ * netdata apps.plugin
+ * (C) Copyright 2016-2017 Costa Tsaousis <costa@tsaousis.gr>
+ * Released under GPL v3+
+ */
+
+#include "../../libnetdata/libnetdata.h"
+
+// ----------------------------------------------------------------------------
+
+// callback required by fatal()
+void netdata_cleanup_and_exit(int ret) {
+ exit(ret);
+}
+
+void send_statistics( const char *action, const char *action_result, const char *action_data) {
+ (void) action;
+ (void) action_result;
+ (void) action_data;
+ return;
+}
+// callbacks required by popen()
+void signals_block(void) {};
+void signals_unblock(void) {};
+void signals_reset(void) {};
+
+// callback required by eval()
+int health_variable_lookup(const char *variable, uint32_t hash, struct rrdcalc *rc, calculated_number *result) {
+ (void)variable;
+ (void)hash;
+ (void)rc;
+ (void)result;
+ return 0;
+};
+
+// required by get_system_cpus()
+char *netdata_configured_host_prefix = "";
+
+
+// ----------------------------------------------------------------------------
+// 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_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;
+
+// ----------------------------------------------------------------------------
+// internal flags
+// handled in code (automatically set)
+
+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.
+//
+// With 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()
+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;
+
+// ----------------------------------------------------------------------------
+// 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];
+
+ uid_t uid;
+ gid_t gid;
+
+ 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 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;
+
+ kernel_uint_t openfiles;
+ kernel_uint_t openpipes;
+ kernel_uint_t opensockets;
+ kernel_uint_t openinotifies;
+ kernel_uint_t openeventfds;
+ kernel_uint_t opentimerfds;
+ kernel_uint_t opensignalfds;
+ kernel_uint_t openeventpolls;
+ kernel_uint_t openother;
+
+ 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 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;
+ char comm[MAX_COMPARE_NAME + 1];
+ char *cmdline;
+
+ uint32_t log_thrown;
+
+ // char state;
+ int32_t ppid;
+ // int32_t pgrp;
+ // int32_t session;
+ // int32_t tty_nr;
+ // int32_t tpgid;
+ // uint64_t flags;
+
+ // 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 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_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;
+#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;
+
+ struct pid_fd *fds; // array of fds it uses
+ size_t fds_size; // the size of the fds array
+
+ int children_count; // number of processes directly referencing this
+ unsigned char keep:1; // 1 when we need to keep this process in memory even after it exited
+ int keeploops; // increases by 1 every time keep is 1 and updated 0
+ unsigned char updated:1; // 1 when the process is currently running
+ unsigned char merged:1; // 1 when it has been merged to its parent
+ unsigned char read:1; // 1 when we have already read this process for this iteration
+
+ int sortlist; // higher numbers = top on the process tree
+ // each process gets a unique number
+
+ 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;
+
+ char *fds_dirname; // the full directory name in /proc/PID/fd
+
+ char *stat_filename;
+ char *status_filename;
+ char *io_filename;
+ char *cmdline_filename;
+
+ struct pid_stat *parent;
+ struct pid_stat *prev;
+ struct pid_stat *next;
+};
+
+size_t pagesize;
+
+// log each problem once per process
+// log flood protection flags (log_thrown)
+#define PID_LOG_IO 0x00000001
+#define PID_LOG_STATUS 0x00000002
+#define PID_LOG_CMDLINE 0x00000004
+#define PID_LOG_FDS 0x00000008
+#define PID_LOG_STAT 0x00000010
+
+static struct pid_stat
+ *root_of_pids = NULL, // global list of all processes running
+ **all_pids = NULL; // to avoid allocations, we pre-allocate the
+ // 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 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;
+
+// ----------------------------------------------------------------------------
+// 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 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);
+
+ netdata_fix_chart_name(w->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 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);
+
+ netdata_fix_chart_name(w->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);
+
+ 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) {
+ 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");
+
+ // 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);
+
+ if(likely(root_of_pids))
+ root_of_pids->prev = p;
+
+ p->next = root_of_pids;
+ root_of_pids = p;
+
+ p->pid = pid;
+
+ 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)) {
+ error("attempted to free pid %d that is not allocated.", pid);
+ return;
+ }
+
+ debug_log("process %d %s exited, deleting it.", pid, p->comm);
+
+ if(root_of_pids == p)
+ root_of_pids = p->next;
+
+ if(p->next) p->next->prev = p->prev;
+ if(p->prev) p->prev->next = p->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);
+#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, uint32_t log, int status) {
+ if(unlikely(!status)) {
+ // 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__
+ error("Cannot fetch process %d I/O info (command '%s')", p->pid, p->comm);
+ #else
+ 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__
+ error("Cannot fetch process %d status info (command '%s')", p->pid, p->comm);
+ #else
+ 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__
+ error("Cannot fetch process %d command line (command '%s')", p->pid, p->comm);
+ #else
+ 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__
+ error("Cannot fetch process %d files (command '%s')", p->pid, p->comm);
+ #else
+ error("Cannot process entries in %s/proc/%d/fd (command '%s')", netdata_configured_host_prefix, p->pid, p->comm);
+ #endif
+ break;
+
+ case PID_LOG_STAT:
+ break;
+
+ default:
+ error("unhandled error for pid %d, command '%s'", p->pid, p->comm);
+ break;
+ }
+ }
+ }
+ errno = 0;
+ }
+ else if(unlikely(p->log_thrown & 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))
+ ))) {
+
+ 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));
+}
+#endif // !__FreeBSD__
+
+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;
+
+#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);
+ }
+
+ 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;
+ 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));
+ // p->itrealvalue = str2kernel_uint_t(procfile_lineword(ff, 0, 20));
+ // p->starttime = str2kernel_uint_t(procfile_lineword(ff, 0, 21));
+ // 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;
+ }
+
+ 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, gtime_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)
+ 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 *a) { if(a) {}; return 0; }
+
+avl_tree 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 *) &tmp);
+}
+
+#define file_descriptor_add(fd) avl_insert(&all_files_index, (avl *)(fd))
+#define file_descriptor_remove(fd) avl_remove(&all_files_index, (avl *)(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) {
+ 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]))
+ 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
+ error("Request to decrease counter of fd %d (%s), while the use counter is 0", id, all_files[id].name);
+ }
+ else 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]))
+ 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))
+ 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]))
+ 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];
+ size_t i = first;
+
+ while(pfd < pfdend) {
+#ifndef __FreeBSD__
+ pfd->filename = NULL;
+#endif
+ clear_pid_fd(pfd);
+ pfd++;
+ i++;
+ }
+}
+
+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];
+
+ // 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))) {
+ 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))) {
+ 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
+ int 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:
+ sprintf(fdsname, "other: shm: %s size: %lu", fds->kf_path, 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))
+ 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 %llu"
+ , 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) {
+ 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(&gtime, &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 = 1;
+
+ 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 = 1;
+
+ 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)) {
+ 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;
+ 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)) {
+ 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 = 1;
+
+ // 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)) {
+ 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));
+
+ // --------------------------------------------------------------------
+ // 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 = 1;
+ p->keep = 0;
+ p->keeploops = 0;
+
+ return 1;
+}
+
+static int collect_data_for_all_processes(void) {
+ struct pid_stat *p = NULL;
+
+#ifdef __FreeBSD__
+ 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_ALL };
+ if (unlikely(sysctl(mib, 3, NULL, &new_procbase_size, NULL, 0))) {
+ 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))) {
+ 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 = 0; // mark it as not read, so that collect_data_for_pid() will read it
+ p->updated = 0;
+ p->merged = 0;
+ 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)) {
+ 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
+ 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 = 0;
+ 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 = 1;
+
+ // 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]->target = apps_groups_default_target;
+
+ // pid 0 goes always to default target
+ if(all_pids[0])
+ 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 is 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->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->openfiles = 0;
+ w->openpipes = 0;
+ w->opensockets = 0;
+ w->openinotifies = 0;
+ w->openeventfds = 0;
+ w->opentimerfds = 0;
+ w->opensignalfds = 0;
+ w->openeventpolls = 0;
+ w->openother = 0;
+ }
+ }
+
+ 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 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]++;
+
+ switch(all_files[fd].type) {
+ case FILETYPE_FILE:
+ w->openfiles++;
+ break;
+
+ case FILETYPE_PIPE:
+ w->openpipes++;
+ break;
+
+ case FILETYPE_SOCKET:
+ w->opensockets++;
+ break;
+
+ case FILETYPE_INOTIFY:
+ w->openinotifies++;
+ break;
+
+ case FILETYPE_EVENTFD:
+ w->openeventfds++;
+ break;
+
+ case FILETYPE_TIMERFD:
+ w->opentimerfds++;
+ break;
+
+ case FILETYPE_SIGNALFD:
+ w->opensignalfds++;
+ break;
+
+ case FILETYPE_EVENTPOLL:
+ w->openeventpolls++;
+ break;
+
+ case FILETYPE_OTHER:
+ w->openother++;
+ break;
+ }
+}
+
+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);
+
+ 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;
+
+ 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)) {
+ error("pid %d %s was left without a target!", p->pid, p->comm);
+ return;
+ }
+
+ 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->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(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);
+}
+
+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);
+ }
+
+ cleanup_exited_pids();
+}
+
+// ----------------------------------------------------------------------------
+// update chart dimensions
+
+static inline void send_BEGIN(const char *type, const char *id, usec_t usec) {
+ fprintf(stdout, "BEGIN %s.%s %llu\n", type, id, 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");
+}
+
+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 %llu\n"
+ "SET user = %llu\n"
+ "SET system = %llu\n"
+ "END\n"
+ "BEGIN netdata.apps_sizes %llu\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 %llu\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 %llu\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 = processors * 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; //(double)(global_utime + global_stime) / (double)(utime + cutime + stime + cstime);
+ }
+ else if((global_utime + global_stime > utime + stime) && (cutime || cstime)) {
+ // childrens 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 = (double)((global_utime + global_stime) - (utime + stime)) / (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 = (double)(global_utime + global_stime) / (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 = (double)(utime * utime_fix_ratio + stime * stime_fix_ratio + gtime * gtime_fix_ratio) / (double)(utime + stime + gtime);
+ else
+ minflt_fix_ratio =
+ majflt_fix_ratio = 1.0;
+
+ if(cutime || cstime || cgtime)
+ cmajflt_fix_ratio =
+ cminflt_fix_ratio = (double)(cutime * cutime_fix_ratio + cstime * cstime_fix_ratio + cgtime * cgtime_fix_ratio) / (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;
+
+ send_BEGIN(type, "cpu", dt);
+ for (w = root; w ; w = w->next) {
+ if(unlikely(w->exposed))
+ send_SET(w->name, (kernel_uint_t)(w->utime * utime_fix_ratio) + (kernel_uint_t)(w->stime * stime_fix_ratio) + (kernel_uint_t)(w->gtime * gtime_fix_ratio) + (include_exited_childs?((kernel_uint_t)(w->cutime * cutime_fix_ratio) + (kernel_uint_t)(w->cstime * cstime_fix_ratio) + (kernel_uint_t)(w->cgtime * cgtime_fix_ratio)):0ULL));
+ }
+ send_END();
+
+ send_BEGIN(type, "cpu_user", dt);
+ for (w = root; w ; w = w->next) {
+ if(unlikely(w->exposed))
+ send_SET(w->name, (kernel_uint_t)(w->utime * utime_fix_ratio) + (include_exited_childs?((kernel_uint_t)(w->cutime * cutime_fix_ratio)):0ULL));
+ }
+ send_END();
+
+ send_BEGIN(type, "cpu_system", dt);
+ for (w = root; w ; w = w->next) {
+ if(unlikely(w->exposed))
+ send_SET(w->name, (kernel_uint_t)(w->stime * stime_fix_ratio) + (include_exited_childs?((kernel_uint_t)(w->cstime * cstime_fix_ratio)):0ULL));
+ }
+ send_END();
+
+ if(show_guest_time) {
+ send_BEGIN(type, "cpu_guest", dt);
+ for (w = root; w ; w = w->next) {
+ if(unlikely(w->exposed))
+ send_SET(w->name, (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, "threads", dt);
+ for (w = root; w ; w = w->next) {
+ if(unlikely(w->exposed))
+ send_SET(w->name, w->num_threads);
+ }
+ send_END();
+
+ send_BEGIN(type, "processes", dt);
+ for (w = root; w ; w = w->next) {
+ if(unlikely(w->exposed))
+ send_SET(w->name, w->processes);
+ }
+ send_END();
+
+ send_BEGIN(type, "mem", dt);
+ for (w = root; w ; w = w->next) {
+ if(unlikely(w->exposed))
+ send_SET(w->name, (w->status_vmrss > w->status_vmshared)?(w->status_vmrss - w->status_vmshared):0ULL);
+ }
+ send_END();
+
+ send_BEGIN(type, "vmem", dt);
+ for (w = root; w ; w = w->next) {
+ if(unlikely(w->exposed))
+ send_SET(w->name, w->status_vmsize);
+ }
+ send_END();
+
+#ifndef __FreeBSD__
+ send_BEGIN(type, "swap", dt);
+ for (w = root; w ; w = w->next) {
+ if(unlikely(w->exposed))
+ send_SET(w->name, w->status_vmswap);
+ }
+ send_END();
+#endif
+
+ send_BEGIN(type, "minor_faults", dt);
+ for (w = root; w ; w = w->next) {
+ if(unlikely(w->exposed))
+ send_SET(w->name, (kernel_uint_t)(w->minflt * minflt_fix_ratio) + (include_exited_childs?((kernel_uint_t)(w->cminflt * cminflt_fix_ratio)):0ULL));
+ }
+ send_END();
+
+ send_BEGIN(type, "major_faults", dt);
+ for (w = root; w ; w = w->next) {
+ if(unlikely(w->exposed))
+ send_SET(w->name, (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, "lreads", dt);
+ for (w = root; w ; w = w->next) {
+ if(unlikely(w->exposed))
+ send_SET(w->name, w->io_logical_bytes_read);
+ }
+ send_END();
+
+ send_BEGIN(type, "lwrites", dt);
+ for (w = root; w ; w = w->next) {
+ if(unlikely(w->exposed))
+ send_SET(w->name, w->io_logical_bytes_written);
+ }
+ send_END();
+#endif
+
+ send_BEGIN(type, "preads", dt);
+ for (w = root; w ; w = w->next) {
+ if(unlikely(w->exposed))
+ send_SET(w->name, w->io_storage_bytes_read);
+ }
+ send_END();
+
+ send_BEGIN(type, "pwrites", dt);
+ for (w = root; w ; w = w->next) {
+ if(unlikely(w->exposed))
+ send_SET(w->name, w->io_storage_bytes_written);
+ }
+ send_END();
+
+ if(enable_file_charts) {
+ send_BEGIN(type, "files", dt);
+ for (w = root; w; w = w->next) {
+ if (unlikely(w->exposed))
+ send_SET(w->name, w->openfiles);
+ }
+ send_END();
+
+ send_BEGIN(type, "sockets", dt);
+ for (w = root; w; w = w->next) {
+ if (unlikely(w->exposed))
+ send_SET(w->name, w->opensockets);
+ }
+ send_END();
+
+ send_BEGIN(type, "pipes", dt);
+ for (w = root; w; w = w->next) {
+ if (unlikely(w->exposed))
+ send_SET(w->name, w->openpipes);
+ }
+ send_END();
+ }
+}
+
+
+// ----------------------------------------------------------------------------
+// generate the charts
+
+static void send_charts_updates_to_netdata(struct target *root, const char *type, const char *title)
+{
+ struct target *w;
+ int newly_added = 0;
+
+ for(w = root ; w ; w = w->next) {
+ if (w->target) continue;
+
+ if (!w->exposed && w->processes) {
+ newly_added++;
+ w->exposed = 1;
+ if (debug_enabled || w->debug_enabled)
+ debug_log_int("%s just added - regenerating charts.", w->name);
+ }
+ }
+
+ // nothing more to show
+ if(!newly_added && show_guest_time == show_guest_time_old) return;
+
+ // we have something new to show
+ // update the charts
+ fprintf(stdout, "CHART %s.cpu '' '%s CPU Time (%d%% = %d core%s)' 'percentage' cpu %s.cpu stacked 20001 %d\n", type, title, (processors * 100), processors, (processors>1)?"s":"", type, update_every);
+ for (w = root; w ; w = w->next) {
+ if(unlikely(w->exposed))
+ fprintf(stdout, "DIMENSION %s '' absolute 1 %llu %s\n", w->name, time_factor * RATES_DETAIL / 100, w->hidden ? "hidden" : "");
+ }
+
+ fprintf(stdout, "CHART %s.mem '' '%s Real Memory (w/o shared)' 'MiB' mem %s.mem stacked 20003 %d\n", type, title, type, update_every);
+ for (w = root; w ; w = w->next) {
+ if(unlikely(w->exposed))
+ fprintf(stdout, "DIMENSION %s '' absolute %ld %ld\n", w->name, 1L, 1024L);
+ }
+
+ fprintf(stdout, "CHART %s.vmem '' '%s Virtual Memory Size' 'MiB' mem %s.vmem stacked 20005 %d\n", type, title, type, update_every);
+ for (w = root; w ; w = w->next) {
+ if(unlikely(w->exposed))
+ fprintf(stdout, "DIMENSION %s '' absolute %ld %ld\n", w->name, 1L, 1024L);
+ }
+
+ fprintf(stdout, "CHART %s.threads '' '%s Threads' 'threads' processes %s.threads stacked 20006 %d\n", type, title, type, update_every);
+ for (w = root; w ; w = w->next) {
+ if(unlikely(w->exposed))
+ fprintf(stdout, "DIMENSION %s '' absolute 1 1\n", w->name);
+ }
+
+ fprintf(stdout, "CHART %s.processes '' '%s Processes' 'processes' processes %s.processes stacked 20007 %d\n", type, title, type, update_every);
+ for (w = root; w ; w = w->next) {
+ if(unlikely(w->exposed))
+ fprintf(stdout, "DIMENSION %s '' absolute 1 1\n", w->name);
+ }
+
+ fprintf(stdout, "CHART %s.cpu_user '' '%s CPU User Time (%d%% = %d core%s)' 'percentage' cpu %s.cpu_user stacked 20020 %d\n", type, title, (processors * 100), processors, (processors>1)?"s":"", type, update_every);
+ for (w = root; w ; w = w->next) {
+ if(unlikely(w->exposed))
+ fprintf(stdout, "DIMENSION %s '' absolute 1 %llu\n", w->name, time_factor * RATES_DETAIL / 100LLU);
+ }
+
+ fprintf(stdout, "CHART %s.cpu_system '' '%s CPU System Time (%d%% = %d core%s)' 'percentage' cpu %s.cpu_system stacked 20021 %d\n", type, title, (processors * 100), processors, (processors>1)?"s":"", type, update_every);
+ for (w = root; w ; w = w->next) {
+ if(unlikely(w->exposed))
+ fprintf(stdout, "DIMENSION %s '' absolute 1 %llu\n", w->name, time_factor * RATES_DETAIL / 100LLU);
+ }
+
+ if(show_guest_time) {
+ fprintf(stdout, "CHART %s.cpu_guest '' '%s CPU Guest Time (%d%% = %d core%s)' 'percentage' cpu %s.cpu_system stacked 20022 %d\n", type, title, (processors * 100), processors, (processors > 1) ? "s" : "", type, update_every);
+ for (w = root; w; w = w->next) {
+ if(unlikely(w->exposed))
+ fprintf(stdout, "DIMENSION %s '' absolute 1 %llu\n", w->name, time_factor * RATES_DETAIL / 100LLU);
+ }
+ }
+
+#ifndef __FreeBSD__
+ fprintf(stdout, "CHART %s.swap '' '%s Swap Memory' 'MiB' swap %s.swap stacked 20011 %d\n", type, title, type, update_every);
+ for (w = root; w ; w = w->next) {
+ if(unlikely(w->exposed))
+ fprintf(stdout, "DIMENSION %s '' absolute %ld %ld\n", w->name, 1L, 1024L);
+ }
+#endif
+
+ fprintf(stdout, "CHART %s.major_faults '' '%s Major Page Faults (swap read)' 'page faults/s' swap %s.major_faults stacked 20012 %d\n", type, title, type, update_every);
+ for (w = root; w ; w = w->next) {
+ if(unlikely(w->exposed))
+ fprintf(stdout, "DIMENSION %s '' absolute 1 %llu\n", w->name, RATES_DETAIL);
+ }
+
+ fprintf(stdout, "CHART %s.minor_faults '' '%s Minor Page Faults' 'page faults/s' mem %s.minor_faults stacked 20011 %d\n", type, title, type, update_every);
+ for (w = root; w ; w = w->next) {
+ if(unlikely(w->exposed))
+ fprintf(stdout, "DIMENSION %s '' absolute 1 %llu\n", w->name, RATES_DETAIL);
+ }
+
+#ifdef __FreeBSD__
+ fprintf(stdout, "CHART %s.preads '' '%s Disk Reads' 'blocks/s' disk %s.preads stacked 20002 %d\n", type, title, type, update_every);
+ for (w = root; w ; w = w->next) {
+ if(unlikely(w->exposed))
+ fprintf(stdout, "DIMENSION %s '' absolute 1 %llu\n", w->name, RATES_DETAIL);
+ }
+
+ fprintf(stdout, "CHART %s.pwrites '' '%s Disk Writes' 'blocks/s' disk %s.pwrites stacked 20002 %d\n", type, title, type, update_every);
+ for (w = root; w ; w = w->next) {
+ if(unlikely(w->exposed))
+ fprintf(stdout, "DIMENSION %s '' absolute 1 %llu\n", w->name, RATES_DETAIL);
+ }
+#else
+ fprintf(stdout, "CHART %s.preads '' '%s Disk Reads' 'KiB/s' disk %s.preads stacked 20002 %d\n", type, title, type, update_every);
+ for (w = root; w ; w = w->next) {
+ if(unlikely(w->exposed))
+ fprintf(stdout, "DIMENSION %s '' absolute 1 %llu\n", w->name, 1024LLU * RATES_DETAIL);
+ }
+
+ fprintf(stdout, "CHART %s.pwrites '' '%s Disk Writes' 'KiB/s' disk %s.pwrites stacked 20002 %d\n", type, title, type, update_every);
+ for (w = root; w ; w = w->next) {
+ if(unlikely(w->exposed))
+ fprintf(stdout, "DIMENSION %s '' absolute 1 %llu\n", w->name, 1024LLU * RATES_DETAIL);
+ }
+
+ fprintf(stdout, "CHART %s.lreads '' '%s Disk Logical Reads' 'KiB/s' disk %s.lreads stacked 20042 %d\n", type, title, type, update_every);
+ for (w = root; w ; w = w->next) {
+ if(unlikely(w->exposed))
+ fprintf(stdout, "DIMENSION %s '' absolute 1 %llu\n", w->name, 1024LLU * RATES_DETAIL);
+ }
+
+ fprintf(stdout, "CHART %s.lwrites '' '%s I/O Logical Writes' 'KiB/s' disk %s.lwrites stacked 20042 %d\n", type, title, type, update_every);
+ for (w = root; w ; w = w->next) {
+ if(unlikely(w->exposed))
+ fprintf(stdout, "DIMENSION %s '' absolute 1 %llu\n", w->name, 1024LLU * RATES_DETAIL);
+ }
+#endif
+
+ if(enable_file_charts) {
+ fprintf(stdout, "CHART %s.files '' '%s Open Files' 'open files' disk %s.files stacked 20050 %d\n", type,
+ title, type, update_every);
+ for (w = root; w; w = w->next) {
+ if (unlikely(w->exposed))
+ fprintf(stdout, "DIMENSION %s '' absolute 1 1\n", w->name);
+ }
+
+ fprintf(stdout, "CHART %s.sockets '' '%s Open Sockets' 'open sockets' net %s.sockets stacked 20051 %d\n",
+ type, title, type, update_every);
+ for (w = root; w; w = w->next) {
+ if (unlikely(w->exposed))
+ fprintf(stdout, "DIMENSION %s '' absolute 1 1\n", w->name);
+ }
+
+ fprintf(stdout, "CHART %s.pipes '' '%s Pipes' 'open pipes' processes %s.pipes stacked 20053 %d\n", type,
+ title, type, update_every);
+ for (w = root; w; w = w->next) {
+ if (unlikely(w->exposed))
+ fprintf(stdout, "DIMENSION %s '' absolute 1 1\n", w->name);
+ }
+ }
+}
+
+
+// ----------------------------------------------------------------------------
+// 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) {
+#ifdef NETDATA_INTERNAL_CHECKS
+ debug_enabled = 1;
+#else
+ 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("-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-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"
+#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);
+ }
+
+ error("Cannot understand option %s", argv[i]);
+ exit(1);
+ }
+
+ if(freq > 0) update_every = freq;
+
+ if(read_apps_groups_conf(user_config_dir, "groups")) {
+ 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")) {
+ error("Cannot read process groups '%s/apps_groups.conf'. There are no internal defaults. Failing.", stock_config_dir);
+ exit(1);
+ }
+ else
+ info("Loaded config file '%s/apps_groups.conf'", stock_config_dir);
+ }
+ else
+ 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) info("I am running with escalated privileges, uid = %u, euid = %u.", uid, euid);
+ return 1;
+ }
+
+ if(debug_enabled) 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) {
+ error("Cannot get current capabilities.");
+ return 0;
+ }
+ else if(debug_enabled)
+ 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) {
+ error("Cannot find if CAP_DAC_READ_SEARCH is effective.");
+ ret = 0;
+ }
+ else {
+ if(cfv != CAP_SET) {
+ error("apps.plugin should run with CAP_DAC_READ_SEARCH.");
+ ret = 0;
+ }
+ else if(debug_enabled)
+ info("apps.plugin runs with CAP_DAC_READ_SEARCH.");
+ }
+
+ cfv = CAP_CLEAR;
+ if(cap_get_flag(caps, CAP_SYS_PTRACE, CAP_EFFECTIVE, &cfv) == -1) {
+ error("Cannot find if CAP_SYS_PTRACE is effective.");
+ ret = 0;
+ }
+ else {
+ if(cfv != CAP_SET) {
+ error("apps.plugin should run with CAP_SYS_PTRACE.");
+ ret = 0;
+ }
+ else if(debug_enabled)
+ info("apps.plugin runs with CAP_SYS_PTRACE.");
+ }
+
+ cap_free(caps);
+
+ return ret;
+}
+#else
+static int check_capabilities() {
+ return 0;
+}
+#endif
+
+int main(int argc, char **argv) {
+ // debug_flags = D_PROCFILE;
+
+ pagesize = (size_t)sysconf(_SC_PAGESIZE);
+
+ // set the name for logging
+ program_name = "apps.plugin";
+
+ // disable syslog for apps.plugin
+ error_log_syslog = 0;
+
+ // set errors flood protection to 100 logs per hour
+ error_log_errors_per_period = 100;
+ error_log_throttle_period = 3600;
+
+ // 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() == -1) exit(1);
+
+ user_config_dir = getenv("NETDATA_USER_CONFIG_DIR");
+ if(user_config_dir == NULL) {
+ // info("NETDATA_CONFIG_DIR is not passed from netdata");
+ user_config_dir = CONFIG_DIR;
+ }
+ // else info("Found NETDATA_USER_CONFIG_DIR='%s'", user_config_dir);
+
+ stock_config_dir = getenv("NETDATA_STOCK_CONFIG_DIR");
+ if(stock_config_dir == NULL) {
+ // info("NETDATA_CONFIG_DIR is not passed from netdata");
+ stock_config_dir = LIBCONFIG_DIR;
+ }
+ // else 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)
+ 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;
+
+ time_t started_t = now_monotonic_sec();
+
+ 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();
+
+ 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
+ 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
+ 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
+ }
+
+ info("started on pid %d", getpid());
+
+#if (ALL_PIDS_ARE_READ_INSTANTLY == 0)
+ all_pids_sortlist = callocz(sizeof(pid_t), (size_t)pid_max);
+#endif
+
+ all_pids = callocz(sizeof(struct pid_stat *), (size_t) pid_max);
+
+ usec_t step = update_every * USEC_PER_SEC;
+ global_iterations_counter = 1;
+ heartbeat_t hb;
+ heartbeat_init(&hb);
+ for(;1; global_iterations_counter++) {
+
+#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
+
+ if(!collect_data_for_all_processes()) {
+ error("Cannot collect /proc data for running processes. Disabling apps.plugin...");
+ printf("DISABLE\n");
+ exit(1);
+ }
+
+ calculate_netdata_statistics();
+ normalize_utilization(apps_groups_root_target);
+
+ send_resource_usage_to_netdata(dt);
+
+ // this is smart enough to show only newly added apps, when needed
+ send_charts_updates_to_netdata(apps_groups_root_target, "apps", "Apps");
+
+ if(likely(enable_users_charts))
+ send_charts_updates_to_netdata(users_root_target, "users", "Users");
+
+ if(likely(enable_groups_charts))
+ send_charts_updates_to_netdata(groups_root_target, "groups", "User Groups");
+
+ send_collected_data_to_netdata(apps_groups_root_target, "apps", dt);
+
+ if(likely(enable_users_charts))
+ send_collected_data_to_netdata(users_root_target, "users", dt);
+
+ if(likely(enable_groups_charts))
+ send_collected_data_to_netdata(groups_root_target, "groups", dt);
+
+ fflush(stdout);
+
+ show_guest_time_old = show_guest_time;
+
+ debug_log("done Loop No %zu", global_iterations_counter);
+
+ // restart check (14400 seconds)
+ if(now_monotonic_sec() - started_t > 14400) exit(0);
+ }
+}