openbsd.c File Reference

#include "uv.h"
#include "internal.h"
#include <sys/types.h>
#include <sys/param.h>
#include <sys/resource.h>
#include <sys/sched.h>
#include <sys/time.h>
#include <sys/sysctl.h>
#include <errno.h>
#include <fcntl.h>
#include <paths.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>

Go to the source code of this file.

Functions
int	uv__platform_loop_init (uv_loop_t *loop)
void	uv__platform_loop_delete (uv_loop_t *loop)
void	uv_loadavg (double avg[3])
int	uv_exepath (char *buffer, size_t *size)
uint64_t	uv_get_free_memory (void)
uint64_t	uv_get_total_memory (void)
uint64_t	uv_get_constrained_memory (void)
int	uv_resident_set_memory (size_t *rss)
int	uv_uptime (double *uptime)
int	uv_cpu_info (uv_cpu_info_t **cpu_infos, int *count)

Function Documentation

uv__platform_loop_delete()

void uv__platform_loop_delete

(

uv_loop_t *

loop

)

Definition at line 44 of file openbsd.c.

                                               {
}

uv__platform_loop_init()

int uv__platform_loop_init

(

uv_loop_t *

loop

)

Definition at line 39 of file openbsd.c.

                                            {
  return uv__kqueue_init(loop);
}

References loop, and uv__kqueue_init().

uv_cpu_info()

int uv_cpu_info	(	uv_cpu_info_t **	cpu_infos,
		int *	count
	)

Definition at line 179 of file openbsd.c.

                                                       {
  unsigned int ticks = (unsigned int)sysconf(_SC_CLK_TCK),
               multiplier = ((uint64_t)1000L / ticks), cpuspeed;
  uint64_t info[CPUSTATES];
  char model[512];
  int numcpus = 1;
  int which[] = {CTL_HW,HW_MODEL};
  int percpu[] = {CTL_KERN,KERN_CPTIME2,0};
  size_t size;
  int i, j;
  uv_cpu_info_t* cpu_info;
 
  size = sizeof(model);
  if (sysctl(which, ARRAY_SIZE(which), &model, &size, NULL, 0))
    return UV__ERR(errno);
 
  which[1] = HW_NCPUONLINE;
  size = sizeof(numcpus);
  if (sysctl(which, ARRAY_SIZE(which), &numcpus, &size, NULL, 0))
    return UV__ERR(errno);
 
  *cpu_infos = uv__malloc(numcpus * sizeof(**cpu_infos));
  if (!(*cpu_infos))
    return UV_ENOMEM;
 
  i = 0;
  *count = numcpus;
 
  which[1] = HW_CPUSPEED;
  size = sizeof(cpuspeed);
  if (sysctl(which, ARRAY_SIZE(which), &cpuspeed, &size, NULL, 0))
    goto error;
 
  size = sizeof(info);
  for (i = 0; i < numcpus; i++) {
    percpu[2] = i;
    if (sysctl(percpu, ARRAY_SIZE(percpu), &info, &size, NULL, 0))
      goto error;
 
    cpu_info = &(*cpu_infos)[i];
 
    cpu_info->cpu_times.user = (uint64_t)(info[CP_USER]) * multiplier;
    cpu_info->cpu_times.nice = (uint64_t)(info[CP_NICE]) * multiplier;
    cpu_info->cpu_times.sys = (uint64_t)(info[CP_SYS]) * multiplier;
    cpu_info->cpu_times.idle = (uint64_t)(info[CP_IDLE]) * multiplier;
    cpu_info->cpu_times.irq = (uint64_t)(info[CP_INTR]) * multiplier;
 
    cpu_info->model = uv__strdup(model);
    cpu_info->speed = cpuspeed;
  }
 
  return 0;
 
error:
  *count = 0;
  for (j = 0; j < i; j++)
    uv__free((*cpu_infos)[j].model);
 
  uv__free(*cpu_infos);
  *cpu_infos = NULL;
  return UV__ERR(errno);
}

References ARRAY_SIZE, count, CP_IDLE, CP_INTR, CP_NICE, CP_SYS, CP_USER, uv_cpu_info_s::cpu_times, CPUSTATES, error(), i, uv_cpu_times_s::idle, info(), int, uv_cpu_times_s::irq, uv_cpu_info_s::model, uv_cpu_times_s::nice, NULL, uv_cpu_info_s::speed, uv_cpu_times_s::sys, uv_cpu_times_s::user, UV__ERR, uv__free(), uv__malloc(), uv__strdup(), and which.

uv_exepath()

int uv_exepath	(	char *	buffer,
		size_t *	size
	)

Definition at line 61 of file openbsd.c.

                                           {
  int mib[4];
  char **argsbuf = NULL;
  size_t argsbuf_size = 100U;
  size_t exepath_size;
  pid_t mypid;
  int err;
 
  if (buffer == NULL || size == NULL || *size == 0)
    return UV_EINVAL;
 
  mypid = getpid();
  for (;;) {
    err = UV_ENOMEM;
    argsbuf = uv__reallocf(argsbuf, argsbuf_size);
    if (argsbuf == NULL)
      goto out;
    mib[0] = CTL_KERN;
    mib[1] = KERN_PROC_ARGS;
    mib[2] = mypid;
    mib[3] = KERN_PROC_ARGV;
    if (sysctl(mib, ARRAY_SIZE(mib), argsbuf, &argsbuf_size, NULL, 0) == 0) {
      break;
    }
    if (errno != ENOMEM) {
      err = UV__ERR(errno);
      goto out;
    }
    argsbuf_size *= 2U;
  }
 
  if (argsbuf[0] == NULL) {
    err = UV_EINVAL;  /* FIXME(bnoordhuis) More appropriate error. */
    goto out;
  }
 
  *size -= 1;
  exepath_size = strlen(argsbuf[0]);
  if (*size > exepath_size)
    *size = exepath_size;
 
  memcpy(buffer, argsbuf[0], *size);
  buffer[*size] = '\0';
  err = 0;
 
out:
  uv__free(argsbuf);
 
  return err;
}

References ARRAY_SIZE, ENOMEM, err, memcpy(), NULL, out, UV__ERR, uv__free(), and uv__reallocf().

uv_get_constrained_memory()

uint64_t uv_get_constrained_memory

(

void

)

Definition at line 137 of file openbsd.c.

                                         {
  return 0;  /* Memory constraints are unknown. */
}

uv_get_free_memory()

uint64_t uv_get_free_memory

(

void

)

Definition at line 113 of file openbsd.c.

                                  {
  struct uvmexp info;
  size_t size = sizeof(info);
  int which[] = {CTL_VM, VM_UVMEXP};
 
  if (sysctl(which, ARRAY_SIZE(which), &info, &size, NULL, 0))
    return UV__ERR(errno);
 
  return (uint64_t) info.free * sysconf(_SC_PAGESIZE);
}

References ARRAY_SIZE, info(), NULL, UV__ERR, and which.

uv_get_total_memory()

uint64_t uv_get_total_memory

(

void

)

Definition at line 125 of file openbsd.c.

                                   {
  uint64_t info;
  int which[] = {CTL_HW, HW_PHYSMEM64};
  size_t size = sizeof(info);
 
  if (sysctl(which, ARRAY_SIZE(which), &info, &size, NULL, 0))
    return UV__ERR(errno);
 
  return (uint64_t) info;
}

References ARRAY_SIZE, info(), NULL, UV__ERR, and which.

uv_loadavg()

void uv_loadavg

(

double

avg[3]

)

Definition at line 48 of file openbsd.c.

                               {
  struct loadavg info;
  size_t size = sizeof(info);
  int which[] = {CTL_VM, VM_LOADAVG};
 
  if (sysctl(which, ARRAY_SIZE(which), &info, &size, NULL, 0) < 0) return;
 
  avg[0] = (double) info.ldavg[0] / info.fscale;
  avg[1] = (double) info.ldavg[1] / info.fscale;
  avg[2] = (double) info.ldavg[2] / info.fscale;
}

References ARRAY_SIZE, info(), test-lz4-speed::loadavg, NULL, and which.

uv_resident_set_memory()

int uv_resident_set_memory

(

size_t *

rss

)

Definition at line 142 of file openbsd.c.

                                        {
  struct kinfo_proc kinfo;
  size_t page_size = getpagesize();
  size_t size = sizeof(struct kinfo_proc);
  int mib[6];
 
  mib[0] = CTL_KERN;
  mib[1] = KERN_PROC;
  mib[2] = KERN_PROC_PID;
  mib[3] = getpid();
  mib[4] = sizeof(struct kinfo_proc);
  mib[5] = 1;
 
  if (sysctl(mib, ARRAY_SIZE(mib), &kinfo, &size, NULL, 0) < 0)
    return UV__ERR(errno);
 
  *rss = kinfo.p_vm_rssize * page_size;
  return 0;
}

References ARRAY_SIZE, NULL, and UV__ERR.

uv_uptime()

int uv_uptime

(

double *

uptime

)

Definition at line 163 of file openbsd.c.

                              {
  time_t now;
  struct timeval info;
  size_t size = sizeof(info);
  static int which[] = {CTL_KERN, KERN_BOOTTIME};
 
  if (sysctl(which, ARRAY_SIZE(which), &info, &size, NULL, 0))
    return UV__ERR(errno);
 
  now = time(NULL);
 
  *uptime = (double)(now - info.tv_sec);
  return 0;
}

References ARRAY_SIZE, info(), NULL, time, UV__ERR, and which.