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prometheus_process_collector

1.4.3
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Prometheus.io process collector Collector exports the current state of process metrics including cpu, memory, file descriptor usage and native threads count as well as the process start and up times.

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prometheus_process_collector c_src prometheus_process_collector.h
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c_src/prometheus_process_collector.h 

#pragma once



#include <stdio.h>

#include <stdlib.h>

#include <unistd.h>



#if defined(__FreeBSD__) || defined(__APPLE__)

#include <sys/sysctl.h>

#include <sys/user.h>

#endif



#ifdef __linux__

#include <dirent.h>

#include <errno.h>

#include <string.h>

#include <sys/resource.h>

#include <time.h>

#endif



#ifdef __APPLE__

#include <libproc.h>

#include <sys/proc_info.h>

#endif



#define UNUSED(x) (void)(x)



struct prometheus_process_info

{

  int fds_total;

  rlim_t fds_limit;

  time_t start_time_seconds;

  long uptime_seconds;

  int threads_total;

  unsigned long vm_bytes;

  unsigned long rm_bytes;

  double utime_seconds;

  double stime_seconds;

  long max_rm_bytes;

  long noio_pagefaults_total;

  long io_pagefaults_total;

  long swaps_total;

  long disk_reads_total;

  long disk_writes_total;

  long signals_delivered_total;

  long voluntary_context_switches_total;

  long involuntary_context_switches_total;

};



#ifdef __linux__



struct kinfo_proc

{

  struct timeval ki_start; /* starting time */

  int ki_numthreads;       /* XXXKSE number of threads in total */

  unsigned long ki_size;   /* virtual size */

  unsigned long ki_rssize; /* resident size in pages */

  struct rusage ki_rusage; /* process rusage statistics */

};



#endif



#define PROCESS_INFO_COUNT 18



int fill_prometheus_process_info(pid_t pid, struct prometheus_process_info *prometheus_process_info);