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// SPDX-License-Identifier: GPL-3.0-or-later
#include "apps_plugin.h"
#if defined(__FreeBSD__)
static inline bool read_proc_pid_status_per_os(struct pid_stat *p, void *ptr) {
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 true;
}
#endif
#ifdef __APPLE__
static inline bool read_proc_pid_status_per_os(struct pid_stat *p, void *ptr) {
struct pid_info *pi = ptr;
p->uid = pi->bsdinfo.pbi_uid;
p->gid = pi->bsdinfo.pbi_gid;
p->status_vmsize = pi->taskinfo.pti_virtual_size / 1024; // Convert bytes to KiB
p->status_vmrss = pi->taskinfo.pti_resident_size / 1024; // Convert bytes to KiB
// p->status_vmswap = rusageinfo.ri_swapins + rusageinfo.ri_swapouts; // This is not directly available, consider an alternative representation
p->status_voluntary_ctxt_switches = pi->taskinfo.pti_csw;
// p->status_nonvoluntary_ctxt_switches = taskinfo.pti_nivcsw;
return true;
}
#endif // __APPLE__
#if !defined(__FreeBSD__) && !defined(__APPLE__)
struct arl_callback_ptr {
struct pid_stat *p;
procfile *ff;
size_t line;
};
void arl_callback_status_uid(const char *name, uint32_t hash, const char *value, void *dst) {
(void)name; (void)hash; (void)value;
struct arl_callback_ptr *aptr = (struct arl_callback_ptr *)dst;
if(unlikely(procfile_linewords(aptr->ff, aptr->line) < 5)) return;
//const char *real_uid = procfile_lineword(aptr->ff, aptr->line, 1);
const char *effective_uid = procfile_lineword(aptr->ff, aptr->line, 2);
//const char *saved_uid = procfile_lineword(aptr->ff, aptr->line, 3);
//const char *filesystem_uid = procfile_lineword(aptr->ff, aptr->line, 4);
if(likely(effective_uid && *effective_uid))
aptr->p->uid = (uid_t)str2l(effective_uid);
}
void arl_callback_status_gid(const char *name, uint32_t hash, const char *value, void *dst) {
(void)name; (void)hash; (void)value;
struct arl_callback_ptr *aptr = (struct arl_callback_ptr *)dst;
if(unlikely(procfile_linewords(aptr->ff, aptr->line) < 5)) return;
//const char *real_gid = procfile_lineword(aptr->ff, aptr->line, 1);
const char *effective_gid = procfile_lineword(aptr->ff, aptr->line, 2);
//const char *saved_gid = procfile_lineword(aptr->ff, aptr->line, 3);
//const char *filesystem_gid = procfile_lineword(aptr->ff, aptr->line, 4);
if(likely(effective_gid && *effective_gid))
aptr->p->gid = (uid_t)str2l(effective_gid);
}
void arl_callback_status_vmsize(const char *name, uint32_t hash, const char *value, void *dst) {
(void)name; (void)hash; (void)value;
struct arl_callback_ptr *aptr = (struct arl_callback_ptr *)dst;
if(unlikely(procfile_linewords(aptr->ff, aptr->line) < 3)) return;
aptr->p->status_vmsize = str2kernel_uint_t(procfile_lineword(aptr->ff, aptr->line, 1));
}
void arl_callback_status_vmswap(const char *name, uint32_t hash, const char *value, void *dst) {
(void)name; (void)hash; (void)value;
struct arl_callback_ptr *aptr = (struct arl_callback_ptr *)dst;
if(unlikely(procfile_linewords(aptr->ff, aptr->line) < 3)) return;
aptr->p->status_vmswap = str2kernel_uint_t(procfile_lineword(aptr->ff, aptr->line, 1));
}
void arl_callback_status_vmrss(const char *name, uint32_t hash, const char *value, void *dst) {
(void)name; (void)hash; (void)value;
struct arl_callback_ptr *aptr = (struct arl_callback_ptr *)dst;
if(unlikely(procfile_linewords(aptr->ff, aptr->line) < 3)) return;
aptr->p->status_vmrss = str2kernel_uint_t(procfile_lineword(aptr->ff, aptr->line, 1));
}
void arl_callback_status_rssfile(const char *name, uint32_t hash, const char *value, void *dst) {
(void)name; (void)hash; (void)value;
struct arl_callback_ptr *aptr = (struct arl_callback_ptr *)dst;
if(unlikely(procfile_linewords(aptr->ff, aptr->line) < 3)) return;
aptr->p->status_rssfile = str2kernel_uint_t(procfile_lineword(aptr->ff, aptr->line, 1));
}
void arl_callback_status_rssshmem(const char *name, uint32_t hash, const char *value, void *dst) {
(void)name; (void)hash; (void)value;
struct arl_callback_ptr *aptr = (struct arl_callback_ptr *)dst;
if(unlikely(procfile_linewords(aptr->ff, aptr->line) < 3)) return;
aptr->p->status_rssshmem = str2kernel_uint_t(procfile_lineword(aptr->ff, aptr->line, 1));
}
void arl_callback_status_voluntary_ctxt_switches(const char *name, uint32_t hash, const char *value, void *dst) {
(void)name; (void)hash; (void)value;
struct arl_callback_ptr *aptr = (struct arl_callback_ptr *)dst;
if(unlikely(procfile_linewords(aptr->ff, aptr->line) < 2)) return;
struct pid_stat *p = aptr->p;
pid_incremental_rate(stat, p->status_voluntary_ctxt_switches, str2kernel_uint_t(procfile_lineword(aptr->ff, aptr->line, 1)));
}
void arl_callback_status_nonvoluntary_ctxt_switches(const char *name, uint32_t hash, const char *value, void *dst) {
(void)name; (void)hash; (void)value;
struct arl_callback_ptr *aptr = (struct arl_callback_ptr *)dst;
if(unlikely(procfile_linewords(aptr->ff, aptr->line) < 2)) return;
struct pid_stat *p = aptr->p;
pid_incremental_rate(stat, p->status_nonvoluntary_ctxt_switches, str2kernel_uint_t(procfile_lineword(aptr->ff, aptr->line, 1)));
}
static inline bool read_proc_pid_status_per_os(struct pid_stat *p, void *ptr __maybe_unused) {
static struct arl_callback_ptr arl_ptr;
static procfile *ff = NULL;
if(unlikely(!p->status_arl)) {
p->status_arl = arl_create("/proc/pid/status", NULL, 60);
arl_expect_custom(p->status_arl, "Uid", arl_callback_status_uid, &arl_ptr);
arl_expect_custom(p->status_arl, "Gid", arl_callback_status_gid, &arl_ptr);
arl_expect_custom(p->status_arl, "VmSize", arl_callback_status_vmsize, &arl_ptr);
arl_expect_custom(p->status_arl, "VmRSS", arl_callback_status_vmrss, &arl_ptr);
arl_expect_custom(p->status_arl, "RssFile", arl_callback_status_rssfile, &arl_ptr);
arl_expect_custom(p->status_arl, "RssShmem", arl_callback_status_rssshmem, &arl_ptr);
arl_expect_custom(p->status_arl, "VmSwap", arl_callback_status_vmswap, &arl_ptr);
arl_expect_custom(p->status_arl, "voluntary_ctxt_switches", arl_callback_status_voluntary_ctxt_switches, &arl_ptr);
arl_expect_custom(p->status_arl, "nonvoluntary_ctxt_switches", arl_callback_status_nonvoluntary_ctxt_switches, &arl_ptr);
}
if(unlikely(!p->status_filename)) {
char filename[FILENAME_MAX + 1];
snprintfz(filename, FILENAME_MAX, "%s/proc/%d/status", netdata_configured_host_prefix, p->pid);
p->status_filename = strdupz(filename);
}
ff = procfile_reopen(ff, p->status_filename, (!ff)?" \t:,-()/":NULL, PROCFILE_FLAG_NO_ERROR_ON_FILE_IO);
if(unlikely(!ff)) return false;
ff = procfile_readall(ff);
if(unlikely(!ff)) return false;
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 true;
}
#endif // !__FreeBSD__ !__APPLE__
int read_proc_pid_status(struct pid_stat *p, void *ptr) {
p->status_vmsize = 0;
p->status_vmrss = 0;
p->status_vmshared = 0;
p->status_rssfile = 0;
p->status_rssshmem = 0;
p->status_vmswap = 0;
p->status_voluntary_ctxt_switches = 0;
p->status_nonvoluntary_ctxt_switches = 0;
return read_proc_pid_status_per_os(p, ptr) ? 1 : 0;
}
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