336 lines
8.6 KiB
C
336 lines
8.6 KiB
C
/* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to
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* deal in the Software without restriction, including without limitation the
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* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
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* sell copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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* IN THE SOFTWARE.
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*/
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#include "uv.h"
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#include "internal.h"
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#include <assert.h>
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#include <stdint.h>
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#include <errno.h>
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#include <ifaddrs.h>
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#include <net/if.h>
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#include <net/if_dl.h>
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#include <mach/mach.h>
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#include <mach/mach_time.h>
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#include <mach-o/dyld.h> /* _NSGetExecutablePath */
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#include <sys/resource.h>
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#include <sys/sysctl.h>
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#include <unistd.h> /* sysconf */
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int uv__platform_loop_init(uv_loop_t* loop) {
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loop->cf_state = NULL;
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if (uv__kqueue_init(loop))
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return -errno;
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return 0;
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}
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void uv__platform_loop_delete(uv_loop_t* loop) {
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uv__fsevents_loop_delete(loop);
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}
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uint64_t uv__hrtime(uv_clocktype_t type) {
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static mach_timebase_info_data_t info;
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if ((ACCESS_ONCE(uint32_t, info.numer) == 0 ||
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ACCESS_ONCE(uint32_t, info.denom) == 0) &&
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mach_timebase_info(&info) != KERN_SUCCESS)
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abort();
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return mach_absolute_time() * info.numer / info.denom;
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}
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int uv_exepath(char* buffer, size_t* size) {
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/* realpath(exepath) may be > PATH_MAX so double it to be on the safe side. */
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char abspath[PATH_MAX * 2 + 1];
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char exepath[PATH_MAX + 1];
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uint32_t exepath_size;
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size_t abspath_size;
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if (buffer == NULL || size == NULL || *size == 0)
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return -EINVAL;
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exepath_size = sizeof(exepath);
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if (_NSGetExecutablePath(exepath, &exepath_size))
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return -EIO;
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if (realpath(exepath, abspath) != abspath)
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return -errno;
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abspath_size = strlen(abspath);
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if (abspath_size == 0)
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return -EIO;
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*size -= 1;
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if (*size > abspath_size)
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*size = abspath_size;
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memcpy(buffer, abspath, *size);
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buffer[*size] = '\0';
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return 0;
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}
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uint64_t uv_get_free_memory(void) {
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vm_statistics_data_t info;
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mach_msg_type_number_t count = sizeof(info) / sizeof(integer_t);
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if (host_statistics(mach_host_self(), HOST_VM_INFO,
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(host_info_t)&info, &count) != KERN_SUCCESS) {
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return -EINVAL; /* FIXME(bnoordhuis) Translate error. */
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}
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return (uint64_t) info.free_count * sysconf(_SC_PAGESIZE);
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}
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uint64_t uv_get_total_memory(void) {
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uint64_t info;
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int which[] = {CTL_HW, HW_MEMSIZE};
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size_t size = sizeof(info);
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if (sysctl(which, 2, &info, &size, NULL, 0))
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return -errno;
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return (uint64_t) info;
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}
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void uv_loadavg(double avg[3]) {
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struct loadavg info;
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size_t size = sizeof(info);
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int which[] = {CTL_VM, VM_LOADAVG};
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if (sysctl(which, 2, &info, &size, NULL, 0) < 0) return;
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avg[0] = (double) info.ldavg[0] / info.fscale;
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avg[1] = (double) info.ldavg[1] / info.fscale;
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avg[2] = (double) info.ldavg[2] / info.fscale;
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}
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int uv_resident_set_memory(size_t* rss) {
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mach_msg_type_number_t count;
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task_basic_info_data_t info;
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kern_return_t err;
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count = TASK_BASIC_INFO_COUNT;
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err = task_info(mach_task_self(),
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TASK_BASIC_INFO,
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(task_info_t) &info,
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&count);
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(void) &err;
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/* task_info(TASK_BASIC_INFO) cannot really fail. Anything other than
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* KERN_SUCCESS implies a libuv bug.
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*/
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assert(err == KERN_SUCCESS);
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*rss = info.resident_size;
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return 0;
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}
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int uv_uptime(double* uptime) {
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time_t now;
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struct timeval info;
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size_t size = sizeof(info);
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static int which[] = {CTL_KERN, KERN_BOOTTIME};
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if (sysctl(which, 2, &info, &size, NULL, 0))
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return -errno;
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now = time(NULL);
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*uptime = now - info.tv_sec;
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return 0;
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}
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int uv_cpu_info(uv_cpu_info_t** cpu_infos, int* count) {
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unsigned int ticks = (unsigned int)sysconf(_SC_CLK_TCK),
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multiplier = ((uint64_t)1000L / ticks);
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char model[512];
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uint64_t cpuspeed;
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size_t size;
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unsigned int i;
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natural_t numcpus;
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mach_msg_type_number_t msg_type;
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processor_cpu_load_info_data_t *info;
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uv_cpu_info_t* cpu_info;
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size = sizeof(model);
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if (sysctlbyname("machdep.cpu.brand_string", &model, &size, NULL, 0) &&
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sysctlbyname("hw.model", &model, &size, NULL, 0)) {
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return -errno;
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}
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size = sizeof(cpuspeed);
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if (sysctlbyname("hw.cpufrequency", &cpuspeed, &size, NULL, 0))
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return -errno;
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if (host_processor_info(mach_host_self(), PROCESSOR_CPU_LOAD_INFO, &numcpus,
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(processor_info_array_t*)&info,
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&msg_type) != KERN_SUCCESS) {
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return -EINVAL; /* FIXME(bnoordhuis) Translate error. */
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}
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*cpu_infos = uv__malloc(numcpus * sizeof(**cpu_infos));
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if (!(*cpu_infos)) {
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vm_deallocate(mach_task_self(), (vm_address_t)info, msg_type);
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return -ENOMEM;
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}
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*count = numcpus;
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for (i = 0; i < numcpus; i++) {
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cpu_info = &(*cpu_infos)[i];
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cpu_info->cpu_times.user = (uint64_t)(info[i].cpu_ticks[0]) * multiplier;
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cpu_info->cpu_times.nice = (uint64_t)(info[i].cpu_ticks[3]) * multiplier;
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cpu_info->cpu_times.sys = (uint64_t)(info[i].cpu_ticks[1]) * multiplier;
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cpu_info->cpu_times.idle = (uint64_t)(info[i].cpu_ticks[2]) * multiplier;
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cpu_info->cpu_times.irq = 0;
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cpu_info->model = uv__strdup(model);
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cpu_info->speed = cpuspeed/1000000;
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}
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vm_deallocate(mach_task_self(), (vm_address_t)info, msg_type);
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return 0;
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}
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void uv_free_cpu_info(uv_cpu_info_t* cpu_infos, int count) {
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int i;
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for (i = 0; i < count; i++) {
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uv__free(cpu_infos[i].model);
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}
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uv__free(cpu_infos);
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}
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int uv_interface_addresses(uv_interface_address_t** addresses, int* count) {
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struct ifaddrs *addrs, *ent;
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uv_interface_address_t* address;
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int i;
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struct sockaddr_dl *sa_addr;
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if (getifaddrs(&addrs))
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return -errno;
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*count = 0;
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/* Count the number of interfaces */
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for (ent = addrs; ent != NULL; ent = ent->ifa_next) {
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if (!((ent->ifa_flags & IFF_UP) && (ent->ifa_flags & IFF_RUNNING)) ||
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(ent->ifa_addr == NULL) ||
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(ent->ifa_addr->sa_family == AF_LINK)) {
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continue;
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}
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(*count)++;
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}
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*addresses = uv__malloc(*count * sizeof(**addresses));
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if (!(*addresses)) {
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freeifaddrs(addrs);
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return -ENOMEM;
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}
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address = *addresses;
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for (ent = addrs; ent != NULL; ent = ent->ifa_next) {
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if (!((ent->ifa_flags & IFF_UP) && (ent->ifa_flags & IFF_RUNNING)))
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continue;
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if (ent->ifa_addr == NULL)
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continue;
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/*
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* On Mac OS X getifaddrs returns information related to Mac Addresses for
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* various devices, such as firewire, etc. These are not relevant here.
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*/
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if (ent->ifa_addr->sa_family == AF_LINK)
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continue;
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address->name = uv__strdup(ent->ifa_name);
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if (ent->ifa_addr->sa_family == AF_INET6) {
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address->address.address6 = *((struct sockaddr_in6*) ent->ifa_addr);
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} else {
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address->address.address4 = *((struct sockaddr_in*) ent->ifa_addr);
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}
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if (ent->ifa_netmask->sa_family == AF_INET6) {
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address->netmask.netmask6 = *((struct sockaddr_in6*) ent->ifa_netmask);
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} else {
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address->netmask.netmask4 = *((struct sockaddr_in*) ent->ifa_netmask);
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}
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address->is_internal = !!(ent->ifa_flags & IFF_LOOPBACK);
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address++;
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}
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/* Fill in physical addresses for each interface */
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for (ent = addrs; ent != NULL; ent = ent->ifa_next) {
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if (!((ent->ifa_flags & IFF_UP) && (ent->ifa_flags & IFF_RUNNING)) ||
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(ent->ifa_addr == NULL) ||
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(ent->ifa_addr->sa_family != AF_LINK)) {
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continue;
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}
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address = *addresses;
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for (i = 0; i < (*count); i++) {
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if (strcmp(address->name, ent->ifa_name) == 0) {
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sa_addr = (struct sockaddr_dl*)(ent->ifa_addr);
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memcpy(address->phys_addr, LLADDR(sa_addr), sizeof(address->phys_addr));
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}
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address++;
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}
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}
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freeifaddrs(addrs);
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return 0;
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}
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void uv_free_interface_addresses(uv_interface_address_t* addresses,
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int count) {
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int i;
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for (i = 0; i < count; i++) {
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uv__free(addresses[i].name);
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}
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uv__free(addresses);
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}
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