netbsd.c File Reference

#include "uv.h"
#include "internal.h"
#include <assert.h>
#include <string.h>
#include <errno.h>
#include <kvm.h>
#include <paths.h>
#include <unistd.h>
#include <time.h>
#include <stdlib.h>
#include <fcntl.h>
#include <sys/resource.h>
#include <sys/types.h>
#include <sys/sysctl.h>
#include <uvm/uvm_extern.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)
int	uv__random_sysctl (void *buf, size_t len)

Function Documentation

uv__platform_loop_delete()

void uv__platform_loop_delete

(

uv_loop_t *

loop

)

Definition at line 49 of file netbsd.c.

                                               {
}

uv__platform_loop_init()

int uv__platform_loop_init

(

uv_loop_t *

loop

)

Definition at line 44 of file netbsd.c.

                                            {
  return uv__kqueue_init(loop);
}

References loop, and uv__kqueue_init().

uv__random_sysctl()

int uv__random_sysctl	(	void *	buf,
		size_t	len
	)

Definition at line 238 of file netbsd.c.

                                             {
  static int name[] = {CTL_KERN, KERN_ARND};
  size_t count, req;
  unsigned char* p;
 
  p = buf;
  while (len) {
    req = len < 32 ? len : 32;
    count = req;
 
    if (sysctl(name, ARRAY_SIZE(name), p, &count, NULL, 0) == -1)
      return UV__ERR(errno);
 
    if (count != req)
      return UV_EIO;  /* Can't happen. */
 
    p += count;
    len -= count;
  }
 
  return 0;
}

uv_cpu_info()

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

Definition at line 180 of file netbsd.c.

                                                       {
  unsigned int ticks = (unsigned int)sysconf(_SC_CLK_TCK);
  unsigned int multiplier = ((uint64_t)1000L / ticks);
  unsigned int cur = 0;
  uv_cpu_info_t* cpu_info;
  u_int64_t* cp_times;
  char model[512];
  u_int64_t cpuspeed;
  int numcpus;
  size_t size;
  int i;
 
  size = sizeof(model);
  if (sysctlbyname("machdep.cpu_brand", &model, &size, NULL, 0) &&
      sysctlbyname("hw.model", &model, &size, NULL, 0)) {
    return UV__ERR(errno);
  }
 
  size = sizeof(numcpus);
  if (sysctlbyname("hw.ncpu", &numcpus, &size, NULL, 0))
    return UV__ERR(errno);
  *count = numcpus;
 
  /* Only i386 and amd64 have machdep.tsc_freq */
  size = sizeof(cpuspeed);
  if (sysctlbyname("machdep.tsc_freq", &cpuspeed, &size, NULL, 0))
    cpuspeed = 0;
 
  size = numcpus * CPUSTATES * sizeof(*cp_times);
  cp_times = uv__malloc(size);
  if (cp_times == NULL)
    return UV_ENOMEM;
 
  if (sysctlbyname("kern.cp_time", cp_times, &size, NULL, 0))
    return UV__ERR(errno);
 
  *cpu_infos = uv__malloc(numcpus * sizeof(**cpu_infos));
  if (!(*cpu_infos)) {
    uv__free(cp_times);
    uv__free(*cpu_infos);
    return UV_ENOMEM;
  }
 
  for (i = 0; i < numcpus; i++) {
    cpu_info = &(*cpu_infos)[i];
    cpu_info->cpu_times.user = (uint64_t)(cp_times[CP_USER+cur]) * multiplier;
    cpu_info->cpu_times.nice = (uint64_t)(cp_times[CP_NICE+cur]) * multiplier;
    cpu_info->cpu_times.sys = (uint64_t)(cp_times[CP_SYS+cur]) * multiplier;
    cpu_info->cpu_times.idle = (uint64_t)(cp_times[CP_IDLE+cur]) * multiplier;
    cpu_info->cpu_times.irq = (uint64_t)(cp_times[CP_INTR+cur]) * multiplier;
    cpu_info->model = uv__strdup(model);
    cpu_info->speed = (int)(cpuspeed/(uint64_t) 1e6);
    cur += CPUSTATES;
  }
  uv__free(cp_times);
  return 0;
}

References count, CP_IDLE, CP_INTR, CP_NICE, CP_SYS, CP_USER, uv_cpu_info_s::cpu_times, CPUSTATES, i, uv_cpu_times_s::idle, 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, u_int64_t, uv_cpu_times_s::user, UV__ERR, uv__free(), uv__malloc(), and uv__strdup().

uv_exepath()

int uv_exepath	(	char *	buffer,
		size_t *	size
	)

Definition at line 66 of file netbsd.c.

                                           {
  /* Intermediate buffer, retrieving partial path name does not work
   * As of NetBSD-8(beta), vnode->path translator does not handle files
   * with longer names than 31 characters.
   */
  char int_buf[PATH_MAX];
  size_t int_size;
  int mib[4];
 
  if (buffer == NULL || size == NULL || *size == 0)
    return UV_EINVAL;
 
  mib[0] = CTL_KERN;
  mib[1] = KERN_PROC_ARGS;
  mib[2] = -1;
  mib[3] = KERN_PROC_PATHNAME;
  int_size = ARRAY_SIZE(int_buf);
 
  if (sysctl(mib, 4, int_buf, &int_size, NULL, 0))
    return UV__ERR(errno);
 
  /* Copy string from the intermediate buffer to outer one with appropriate
   * length.
   */
  /* TODO(bnoordhuis) Check uv__strscpy() return value. */
  uv__strscpy(buffer, int_buf, *size);
 
  /* Set new size. */
  *size = strlen(buffer);
 
  return 0;
}

References ARRAY_SIZE, NULL, UV__ERR, and uv__strscpy().

uv_get_constrained_memory()

uint64_t uv_get_constrained_memory

(

void

)

Definition at line 129 of file netbsd.c.

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

uv_get_free_memory()

uint64_t uv_get_free_memory

(

void

)

Definition at line 100 of file netbsd.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 112 of file netbsd.c.

                                   {
#if defined(HW_PHYSMEM64)
  uint64_t info;
  int which[] = {CTL_HW, HW_PHYSMEM64};
#else
  unsigned int info;
  int which[] = {CTL_HW, HW_PHYSMEM};
#endif
  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 53 of file netbsd.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) == -1) 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 134 of file netbsd.c.

                                        {
  kvm_t *kd = NULL;
  struct kinfo_proc2 *kinfo = NULL;
  pid_t pid;
  int nprocs;
  int max_size = sizeof(struct kinfo_proc2);
  int page_size;
 
  page_size = getpagesize();
  pid = getpid();
 
  kd = kvm_open(NULL, NULL, NULL, KVM_NO_FILES, "kvm_open");
 
  if (kd == NULL) goto error;
 
  kinfo = kvm_getproc2(kd, KERN_PROC_PID, pid, max_size, &nprocs);
  if (kinfo == NULL) goto error;
 
  *rss = kinfo->p_vm_rssize * page_size;
 
  kvm_close(kd);
 
  return 0;
 
error:
  if (kd) kvm_close(kd);
  return UV_EPERM;
}

References error(), NULL, and pid.

uv_uptime()

int uv_uptime

(

double *

uptime

)

Definition at line 164 of file netbsd.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.