sunos.c File Reference

#include "uv.h"
#include "internal.h"
#include <stdio.h>
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#include <assert.h>
#include <errno.h>
#include <ifaddrs.h>
#include <net/if.h>
#include <net/if_dl.h>
#include <net/if_arp.h>
#include <sys/sockio.h>
#include <sys/loadavg.h>
#include <sys/time.h>
#include <unistd.h>
#include <kstat.h>
#include <fcntl.h>
#include <sys/port.h>
#include <port.h>
#include <procfs.h>

Go to the source code of this file.

Macros
#define	PORT_FIRED   0x69
#define	PORT_UNUSED   0x0
#define	PORT_LOADED   0x99
#define	PORT_DELETED   -1
#define	PROCFS_FILE_OFFSET_BITS_HACK   0

Functions
int	uv__platform_loop_init (uv_loop_t *loop)
void	uv__platform_loop_delete (uv_loop_t *loop)
int	uv__io_fork (uv_loop_t *loop)
void	uv__platform_invalidate_fd (uv_loop_t *loop, int fd)
int	uv__io_check_fd (uv_loop_t *loop, int fd)
void	uv__io_poll (uv_loop_t *loop, int timeout)
uint64_t	uv__hrtime (uv_clocktype_t type)
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)
void	uv_loadavg (double avg[3])
int	uv_fs_event_init (uv_loop_t *loop, uv_fs_event_t *handle)
int	uv_fs_event_start (uv_fs_event_t *handle, uv_fs_event_cb cb, const char *filename, unsigned int flags)
int	uv_fs_event_stop (uv_fs_event_t *handle)
void	uv__fs_event_close (uv_fs_event_t *handle)
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)
static int	uv__set_phys_addr (uv_interface_address_t *address, struct ifaddrs *ent)
static int	uv__ifaddr_exclude (struct ifaddrs *ent)
int	uv_interface_addresses (uv_interface_address_t **addresses, int *count)
void	uv_free_interface_addresses (uv_interface_address_t *addresses, int count)

Macro Definition Documentation

PORT_DELETED

#define PORT_DELETED   -1

Definition at line 51 of file sunos.c.

PORT_FIRED

#define PORT_FIRED   0x69

Definition at line 48 of file sunos.c.

PORT_LOADED

#define PORT_LOADED   0x99

Definition at line 50 of file sunos.c.

PORT_UNUSED

#define PORT_UNUSED   0x0

Definition at line 49 of file sunos.c.

PROCFS_FILE_OFFSET_BITS_HACK

#define PROCFS_FILE_OFFSET_BITS_HACK   0

Definition at line 57 of file sunos.c.

Function Documentation

uv__fs_event_close()

void uv__fs_event_close

(

uv_fs_event_t *

handle

)

Definition at line 588 of file sunos.c.

                                               {
  UNREACHABLE();
}

References UNREACHABLE.

uv__hrtime()

uint64_t uv__hrtime

(

uv_clocktype_t

type

)

Definition at line 372 of file sunos.c.

                                         {
  return gethrtime();
}

Referenced by UV_UNUSED().

uv__ifaddr_exclude()

static int uv__ifaddr_exclude ( struct ifaddrs *  ent )

static

Definition at line 785 of file sunos.c.

                                                   {
  if (!((ent->ifa_flags & IFF_UP) && (ent->ifa_flags & IFF_RUNNING)))
    return 1;
  if (ent->ifa_addr == NULL)
    return 1;
  if (ent->ifa_addr->sa_family != AF_INET &&
      ent->ifa_addr->sa_family != AF_INET6)
    return 1;
  return 0;
}

References AF_INET, AF_INET6, ifaddrs::ifa_addr, ifaddrs::ifa_flags, and NULL.

Referenced by uv_interface_addresses().

uv__io_check_fd()

int uv__io_check_fd	(	uv_loop_t *	loop,
		int	fd
	)

Definition at line 134 of file sunos.c.

                                             {
  if (port_associate(loop->backend_fd, PORT_SOURCE_FD, fd, POLLIN, 0))
    return UV__ERR(errno);
 
  if (port_dissociate(loop->backend_fd, PORT_SOURCE_FD, fd)) {
    perror("(libuv) port_dissociate()");
    abort();
  }
 
  return 0;
}

References fd, loop, and UV__ERR.

uv__io_fork()

int uv__io_fork

(

uv_loop_t *

loop

)

Definition at line 102 of file sunos.c.

                                 {
#if defined(PORT_SOURCE_FILE)
  if (loop->fs_fd != -1) {
    /* stop the watcher before we blow away its fileno */
    uv__io_stop(loop, &loop->fs_event_watcher, POLLIN);
  }
#endif
  uv__platform_loop_delete(loop);
  return uv__platform_loop_init(loop);
}

References loop, uv__io_stop(), uv__platform_loop_delete(), and uv__platform_loop_init().

uv__io_poll()

void uv__io_poll	(	uv_loop_t *	loop,
		int	timeout
	)

Definition at line 147 of file sunos.c.

                                               {
  struct port_event events[1024];
  struct port_event* pe;
  struct timespec spec;
  QUEUE* q;
  uv__io_t* w;
  sigset_t* pset;
  sigset_t set;
  uint64_t base;
  uint64_t diff;
  uint64_t idle_poll;
  unsigned int nfds;
  unsigned int i;
  int saved_errno;
  int have_signals;
  int nevents;
  int count;
  int err;
  int fd;
  int user_timeout;
  int reset_timeout;
 
  if (loop->nfds == 0) {
    assert(QUEUE_EMPTY(&loop->watcher_queue));
    return;
  }
 
  while (!QUEUE_EMPTY(&loop->watcher_queue)) {
    q = QUEUE_HEAD(&loop->watcher_queue);
    QUEUE_REMOVE(q);
    QUEUE_INIT(q);
 
    w = QUEUE_DATA(q, uv__io_t, watcher_queue);
    assert(w->pevents != 0);
 
    if (port_associate(loop->backend_fd,
                       PORT_SOURCE_FD,
                       w->fd,
                       w->pevents,
                       0)) {
      perror("(libuv) port_associate()");
      abort();
    }
 
    w->events = w->pevents;
  }
 
  pset = NULL;
  if (loop->flags & UV_LOOP_BLOCK_SIGPROF) {
    pset = &set;
    sigemptyset(pset);
    sigaddset(pset, SIGPROF);
  }
 
  assert(timeout >= -1);
  base = loop->time;
  count = 48; /* Benchmarks suggest this gives the best throughput. */
 
  if (uv__get_internal_fields(loop)->flags & UV_METRICS_IDLE_TIME) {
    reset_timeout = 1;
    user_timeout = timeout;
    timeout = 0;
  } else {
    reset_timeout = 0;
  }
 
  for (;;) {
    /* Only need to set the provider_entry_time if timeout != 0. The function
     * will return early if the loop isn't configured with UV_METRICS_IDLE_TIME.
     */
    if (timeout != 0)
      uv__metrics_set_provider_entry_time(loop);
 
    if (timeout != -1) {
      spec.tv_sec = timeout / 1000;
      spec.tv_nsec = (timeout % 1000) * 1000000;
    }
 
    /* Work around a kernel bug where nfds is not updated. */
    events[0].portev_source = 0;
 
    nfds = 1;
    saved_errno = 0;
 
    if (pset != NULL)
      pthread_sigmask(SIG_BLOCK, pset, NULL);
 
    err = port_getn(loop->backend_fd,
                    events,
                    ARRAY_SIZE(events),
                    &nfds,
                    timeout == -1 ? NULL : &spec);
 
    if (pset != NULL)
      pthread_sigmask(SIG_UNBLOCK, pset, NULL);
 
    if (err) {
      /* Work around another kernel bug: port_getn() may return events even
       * on error.
       */
      if (errno == EINTR || errno == ETIME) {
        saved_errno = errno;
      } else {
        perror("(libuv) port_getn()");
        abort();
      }
    }
 
    /* Update loop->time unconditionally. It's tempting to skip the update when
     * timeout == 0 (i.e. non-blocking poll) but there is no guarantee that the
     * operating system didn't reschedule our process while in the syscall.
     */
    SAVE_ERRNO(uv__update_time(loop));
 
    if (events[0].portev_source == 0) {
      if (reset_timeout != 0) {
        timeout = user_timeout;
        reset_timeout = 0;
      }
 
      if (timeout == 0)
        return;
 
      if (timeout == -1)
        continue;
 
      goto update_timeout;
    }
 
    if (nfds == 0) {
      assert(timeout != -1);
      return;
    }
 
    have_signals = 0;
    nevents = 0;
 
    assert(loop->watchers != NULL);
    loop->watchers[loop->nwatchers] = (void*) events;
    loop->watchers[loop->nwatchers + 1] = (void*) (uintptr_t) nfds;
    for (i = 0; i < nfds; i++) {
      pe = events + i;
      fd = pe->portev_object;
 
      /* Skip invalidated events, see uv__platform_invalidate_fd */
      if (fd == -1)
        continue;
 
      assert(fd >= 0);
      assert((unsigned) fd < loop->nwatchers);
 
      w = loop->watchers[fd];
 
      /* File descriptor that we've stopped watching, ignore. */
      if (w == NULL)
        continue;
 
      /* Run signal watchers last.  This also affects child process watchers
       * because those are implemented in terms of signal watchers.
       */
      if (w == &loop->signal_io_watcher) {
        have_signals = 1;
      } else {
        uv__metrics_update_idle_time(loop);
        w->cb(loop, w, pe->portev_events);
      }
 
      nevents++;
 
      if (w != loop->watchers[fd])
        continue;  /* Disabled by callback. */
 
      /* Events Ports operates in oneshot mode, rearm timer on next run. */
      if (w->pevents != 0 && QUEUE_EMPTY(&w->watcher_queue))
        QUEUE_INSERT_TAIL(&loop->watcher_queue, &w->watcher_queue);
    }
 
    if (reset_timeout != 0) {
      timeout = user_timeout;
      reset_timeout = 0;
    }
 
    if (have_signals != 0) {
      uv__metrics_update_idle_time(loop);
      loop->signal_io_watcher.cb(loop, &loop->signal_io_watcher, POLLIN);
    }
 
    loop->watchers[loop->nwatchers] = NULL;
    loop->watchers[loop->nwatchers + 1] = NULL;
 
    if (have_signals != 0)
      return;  /* Event loop should cycle now so don't poll again. */
 
    if (nevents != 0) {
      if (nfds == ARRAY_SIZE(events) && --count != 0) {
        /* Poll for more events but don't block this time. */
        timeout = 0;
        continue;
      }
      return;
    }
 
    if (saved_errno == ETIME) {
      assert(timeout != -1);
      return;
    }
 
    if (timeout == 0)
      return;
 
    if (timeout == -1)
      continue;
 
update_timeout:
    assert(timeout > 0);
 
    diff = loop->time - base;
    if (diff >= (uint64_t) timeout)
      return;
 
    timeout -= diff;
  }
}

References ARRAY_SIZE, assert(), count, EINTR, err, fd, flags, i, loop, nfds, NULL, QUEUE_DATA, QUEUE_EMPTY, QUEUE_HEAD, QUEUE_INIT, QUEUE_INSERT_TAIL, QUEUE_REMOVE, SAVE_ERRNO, timeout, timespec::tv_nsec, timespec::tv_sec, uv__get_internal_fields, uv__metrics_set_provider_entry_time(), uv__metrics_update_idle_time(), UV_LOOP_BLOCK_SIGPROF, UV_METRICS_IDLE_TIME, and w.

uv__platform_invalidate_fd()

void uv__platform_invalidate_fd	(	uv_loop_t *	loop,
		int	fd
	)

Definition at line 114 of file sunos.c.

                                                         {
  struct port_event* events;
  uintptr_t i;
  uintptr_t nfds;
 
  assert(loop->watchers != NULL);
  assert(fd >= 0);
 
  events = (struct port_event*) loop->watchers[loop->nwatchers];
  nfds = (uintptr_t) loop->watchers[loop->nwatchers + 1];
  if (events == NULL)
    return;
 
  /* Invalidate events with same file descriptor */
  for (i = 0; i < nfds; i++)
    if ((int) events[i].portev_object == fd)
      events[i].portev_object = -1;
}

References assert(), fd, i, loop, nfds, and NULL.

uv__platform_loop_delete()

void uv__platform_loop_delete

(

uv_loop_t *

loop

)

Definition at line 89 of file sunos.c.

                                               {
  if (loop->fs_fd != -1) {
    uv__close(loop->fs_fd);
    loop->fs_fd = -1;
  }
 
  if (loop->backend_fd != -1) {
    uv__close(loop->backend_fd);
    loop->backend_fd = -1;
  }
}

References loop, and uv__close().

Referenced by uv__io_fork().

uv__platform_loop_init()

int uv__platform_loop_init

(

uv_loop_t *

loop

)

Definition at line 67 of file sunos.c.

                                            {
  int err;
  int fd;
 
  loop->fs_fd = -1;
  loop->backend_fd = -1;
 
  fd = port_create();
  if (fd == -1)
    return UV__ERR(errno);
 
  err = uv__cloexec(fd, 1);
  if (err) {
    uv__close(fd);
    return err;
  }
  loop->backend_fd = fd;
 
  return 0;
}

References err, fd, loop, uv__cloexec, uv__close(), and UV__ERR.

Referenced by uv__io_fork().

uv__set_phys_addr()

static int uv__set_phys_addr ( uv_interface_address_t *  address, struct ifaddrs *  ent  )

static

Definition at line 742 of file sunos.c.

                                                  {
 
  struct sockaddr_dl* sa_addr;
  int sockfd;
  size_t i;
  struct arpreq arpreq;
 
  /* This appears to only work as root */
  sa_addr = (struct sockaddr_dl*)(ent->ifa_addr);
  memcpy(address->phys_addr, LLADDR(sa_addr), sizeof(address->phys_addr));
  for (i = 0; i < sizeof(address->phys_addr); i++) {
    /* Check that all bytes of phys_addr are zero. */
    if (address->phys_addr[i] != 0)
      return 0;
  }
  memset(&arpreq, 0, sizeof(arpreq));
  if (address->address.address4.sin_family == AF_INET) {
    struct sockaddr_in* sin = ((struct sockaddr_in*)&arpreq.arp_pa);
    sin->sin_addr.s_addr = address->address.address4.sin_addr.s_addr;
  } else if (address->address.address4.sin_family == AF_INET6) {
    struct sockaddr_in6* sin = ((struct sockaddr_in6*)&arpreq.arp_pa);
    memcpy(sin->sin6_addr.s6_addr,
           address->address.address6.sin6_addr.s6_addr,
           sizeof(address->address.address6.sin6_addr.s6_addr));
  } else {
    return 0;
  }
 
  sockfd = socket(AF_INET, SOCK_DGRAM, 0);
  if (sockfd < 0)
    return UV__ERR(errno);
 
  if (ioctl(sockfd, SIOCGARP, (char*)&arpreq) == -1) {
    uv__close(sockfd);
    return UV__ERR(errno);
  }
  memcpy(address->phys_addr, arpreq.arp_ha.sa_data, sizeof(address->phys_addr));
  uv__close(sockfd);
  return 0;
}

References uv_interface_address_s::address, uv_interface_address_s::address4, uv_interface_address_s::address6, AF_INET, AF_INET6, i, ifaddrs::ifa_addr, ioctl, memcpy(), memset(), uv_interface_address_s::phys_addr, in_addr::s_addr, sockaddr_in6::sin6_addr, sockaddr_in::sin_addr, SOCK_DGRAM, socket, sockfd, uv__close(), and UV__ERR.

Referenced by uv_interface_addresses().

uv_cpu_info()

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

Definition at line 640 of file sunos.c.

                                                       {
  int           lookup_instance;
  kstat_ctl_t   *kc;
  kstat_t       *ksp;
  kstat_named_t *knp;
  uv_cpu_info_t* cpu_info;
 
  kc = kstat_open();
  if (kc == NULL)
    return UV_EPERM;
 
  /* Get count of cpus */
  lookup_instance = 0;
  while ((ksp = kstat_lookup(kc, (char*) "cpu_info", lookup_instance, NULL))) {
    lookup_instance++;
  }
 
  *cpu_infos = uv__malloc(lookup_instance * sizeof(**cpu_infos));
  if (!(*cpu_infos)) {
    kstat_close(kc);
    return UV_ENOMEM;
  }
 
  *count = lookup_instance;
 
  cpu_info = *cpu_infos;
  lookup_instance = 0;
  while ((ksp = kstat_lookup(kc, (char*) "cpu_info", lookup_instance, NULL))) {
    if (kstat_read(kc, ksp, NULL) == -1) {
      cpu_info->speed = 0;
      cpu_info->model = NULL;
    } else {
      knp = kstat_data_lookup(ksp, (char*) "clock_MHz");
      assert(knp->data_type == KSTAT_DATA_INT32 ||
             knp->data_type == KSTAT_DATA_INT64);
      cpu_info->speed = (knp->data_type == KSTAT_DATA_INT32) ? knp->value.i32
                                                             : knp->value.i64;
 
      knp = kstat_data_lookup(ksp, (char*) "brand");
      assert(knp->data_type == KSTAT_DATA_STRING);
      cpu_info->model = uv__strdup(KSTAT_NAMED_STR_PTR(knp));
    }
 
    lookup_instance++;
    cpu_info++;
  }
 
  cpu_info = *cpu_infos;
  lookup_instance = 0;
  for (;;) {
    ksp = kstat_lookup(kc, (char*) "cpu", lookup_instance, (char*) "sys");
 
    if (ksp == NULL)
      break;
 
    if (kstat_read(kc, ksp, NULL) == -1) {
      cpu_info->cpu_times.user = 0;
      cpu_info->cpu_times.nice = 0;
      cpu_info->cpu_times.sys = 0;
      cpu_info->cpu_times.idle = 0;
      cpu_info->cpu_times.irq = 0;
    } else {
      knp = kstat_data_lookup(ksp, (char*) "cpu_ticks_user");
      assert(knp->data_type == KSTAT_DATA_UINT64);
      cpu_info->cpu_times.user = knp->value.ui64;
 
      knp = kstat_data_lookup(ksp, (char*) "cpu_ticks_kernel");
      assert(knp->data_type == KSTAT_DATA_UINT64);
      cpu_info->cpu_times.sys = knp->value.ui64;
 
      knp = kstat_data_lookup(ksp, (char*) "cpu_ticks_idle");
      assert(knp->data_type == KSTAT_DATA_UINT64);
      cpu_info->cpu_times.idle = knp->value.ui64;
 
      knp = kstat_data_lookup(ksp, (char*) "intr");
      assert(knp->data_type == KSTAT_DATA_UINT64);
      cpu_info->cpu_times.irq = knp->value.ui64;
      cpu_info->cpu_times.nice = 0;
    }
 
    lookup_instance++;
    cpu_info++;
  }
 
  kstat_close(kc);
 
  return 0;
}

References assert(), count, uv_cpu_info_s::cpu_times, uv_cpu_times_s::idle, 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__malloc(), and uv__strdup().

uv_exepath()

int uv_exepath	(	char *	buffer,
		size_t *	size
	)

Definition at line 382 of file sunos.c.

                                           {
  ssize_t res;
  char buf[128];
 
  if (buffer == NULL || size == NULL || *size == 0)
    return UV_EINVAL;
 
  snprintf(buf, sizeof(buf), "/proc/%lu/path/a.out", (unsigned long) getpid());
 
  res = *size - 1;
  if (res > 0)
    res = readlink(buf, buffer, res);
 
  if (res == -1)
    return UV__ERR(errno);
 
  buffer[res] = '\0';
  *size = res;
  return 0;
}

References NULL, readlink, snprintf, and UV__ERR.

uv_free_interface_addresses()

void uv_free_interface_addresses	(	uv_interface_address_t *	addresses,
		int	count
	)

Definition at line 858 of file sunos.c.

             {
  int i;
 
  for (i = 0; i < count; i++) {
    uv__free(addresses[i].name);
  }
 
  uv__free(addresses);
}

References count, i, and uv__free().

uv_fs_event_init()

int uv_fs_event_init	(	uv_loop_t *	loop,
		uv_fs_event_t *	handle
	)

Definition at line 570 of file sunos.c.

                                                             {
  return UV_ENOSYS;
}

uv_fs_event_start()

int uv_fs_event_start	(	uv_fs_event_t *	handle,
		uv_fs_event_cb	cb,
		const char *	filename,
		unsigned int	flags
	)

Definition at line 575 of file sunos.c.

                                          {
  return UV_ENOSYS;
}

uv_fs_event_stop()

int uv_fs_event_stop

(

uv_fs_event_t *

handle

)

Definition at line 583 of file sunos.c.

                                            {
  return UV_ENOSYS;
}

uv_get_constrained_memory()

uint64_t uv_get_constrained_memory

(

void

)

Definition at line 414 of file sunos.c.

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

uv_get_free_memory()

uint64_t uv_get_free_memory

(

void

)

Definition at line 404 of file sunos.c.

                                  {
  return (uint64_t) sysconf(_SC_PAGESIZE) * sysconf(_SC_AVPHYS_PAGES);
}

uv_get_total_memory()

uint64_t uv_get_total_memory

(

void

)

Definition at line 409 of file sunos.c.

                                   {
  return (uint64_t) sysconf(_SC_PAGESIZE) * sysconf(_SC_PHYS_PAGES);
}

uv_interface_addresses()

int uv_interface_addresses	(	uv_interface_address_t **	addresses,
		int *	count
	)

Definition at line 796 of file sunos.c.

                                                                           {
  uv_interface_address_t* address;
  struct ifaddrs* addrs;
  struct ifaddrs* ent;
 
  *count = 0;
  *addresses = NULL;
 
  if (getifaddrs(&addrs))
    return UV__ERR(errno);
 
  /* Count the number of interfaces */
  for (ent = addrs; ent != NULL; ent = ent->ifa_next) {
    if (uv__ifaddr_exclude(ent))
      continue;
    (*count)++;
  }
 
  if (*count == 0) {
    freeifaddrs(addrs);
    return 0;
  }
 
  *addresses = uv__malloc(*count * sizeof(**addresses));
  if (!(*addresses)) {
    freeifaddrs(addrs);
    return UV_ENOMEM;
  }
 
  address = *addresses;
 
  for (ent = addrs; ent != NULL; ent = ent->ifa_next) {
    if (uv__ifaddr_exclude(ent))
      continue;
 
    address->name = uv__strdup(ent->ifa_name);
 
    if (ent->ifa_addr->sa_family == AF_INET6) {
      address->address.address6 = *((struct sockaddr_in6*) ent->ifa_addr);
    } else {
      address->address.address4 = *((struct sockaddr_in*) ent->ifa_addr);
    }
 
    if (ent->ifa_netmask->sa_family == AF_INET6) {
      address->netmask.netmask6 = *((struct sockaddr_in6*) ent->ifa_netmask);
    } else {
      address->netmask.netmask4 = *((struct sockaddr_in*) ent->ifa_netmask);
    }
 
    address->is_internal = !!((ent->ifa_flags & IFF_PRIVATE) ||
                           (ent->ifa_flags & IFF_LOOPBACK));
 
    uv__set_phys_addr(address, ent);
    address++;
  }
 
  freeifaddrs(addrs);
 
  return 0;
}

References uv_interface_address_s::address, uv_interface_address_s::address4, uv_interface_address_s::address6, AF_INET6, count, freeifaddrs(), getifaddrs(), ifaddrs::ifa_addr, ifaddrs::ifa_flags, ifaddrs::ifa_name, ifaddrs::ifa_netmask, ifaddrs::ifa_next, uv_interface_address_s::is_internal, uv_interface_address_s::name, uv_interface_address_s::netmask, uv_interface_address_s::netmask4, uv_interface_address_s::netmask6, NULL, UV__ERR, uv__ifaddr_exclude(), uv__malloc(), uv__set_phys_addr(), and uv__strdup().

uv_loadavg()

void uv_loadavg

(

double

avg[3]

)

Definition at line 419 of file sunos.c.

                               {
  (void) getloadavg(avg, 3);
}

uv_resident_set_memory()

int uv_resident_set_memory

(

size_t *

rss

)

Definition at line 595 of file sunos.c.

                                        {
  psinfo_t psinfo;
  int err;
  int fd;
 
  fd = open("/proc/self/psinfo", O_RDONLY);
  if (fd == -1)
    return UV__ERR(errno);
 
  /* FIXME(bnoordhuis) Handle EINTR. */
  err = UV_EINVAL;
  if (read(fd, &psinfo, sizeof(psinfo)) == sizeof(psinfo)) {
    *rss = (size_t)psinfo.pr_rssize * 1024;
    err = 0;
  }
  uv__close(fd);
 
  return err;
}

References err, fd, O_RDONLY, read(), uv__close(), and UV__ERR.

uv_uptime()

int uv_uptime

(

double *

uptime

)

Definition at line 616 of file sunos.c.

                              {
  kstat_ctl_t   *kc;
  kstat_t       *ksp;
  kstat_named_t *knp;
 
  long hz = sysconf(_SC_CLK_TCK);
 
  kc = kstat_open();
  if (kc == NULL)
    return UV_EPERM;
 
  ksp = kstat_lookup(kc, (char*) "unix", 0, (char*) "system_misc");
  if (kstat_read(kc, ksp, NULL) == -1) {
    *uptime = -1;
  } else {
    knp = (kstat_named_t*)  kstat_data_lookup(ksp, (char*) "clk_intr");
    *uptime = knp->value.ul / hz;
  }
  kstat_close(kc);
 
  return 0;
}

References NULL.