| /* Copyright Joyent, Inc. and other Node contributors. All rights reserved. |
| * Permission is hereby granted, free of charge, to any person obtaining a copy |
| * of this software and associated documentation files (the "Software"), to |
| * deal in the Software without restriction, including without limitation the |
| * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or |
| * sell copies of the Software, and to permit persons to whom the Software is |
| * furnished to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice shall be included in |
| * all copies or substantial portions of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
| * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS |
| * IN THE SOFTWARE. |
| */ |
| |
| #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> |
| |
| |
| int uv__platform_loop_init(uv_loop_t* loop) { |
| return uv__kqueue_init(loop); |
| } |
| |
| |
| void uv__platform_loop_delete(uv_loop_t* loop) { |
| } |
| |
| |
| void uv_loadavg(double avg[3]) { |
| struct loadavg info; |
| size_t size = sizeof(info); |
| int which[] = {CTL_VM, VM_LOADAVG}; |
| |
| if (sysctl(which, 2, &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; |
| } |
| |
| |
| int uv_exepath(char* buffer, size_t* size) { |
| int mib[4]; |
| char **argsbuf = NULL; |
| char **argsbuf_tmp; |
| 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_tmp = uv__realloc(argsbuf, argsbuf_size); |
| if (argsbuf_tmp == NULL) |
| goto out; |
| argsbuf = argsbuf_tmp; |
| mib[0] = CTL_KERN; |
| mib[1] = KERN_PROC_ARGS; |
| mib[2] = mypid; |
| mib[3] = KERN_PROC_ARGV; |
| if (sysctl(mib, 4, 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; |
| } |
| |
| |
| uint64_t uv_get_free_memory(void) { |
| struct uvmexp info; |
| size_t size = sizeof(info); |
| int which[] = {CTL_VM, VM_UVMEXP}; |
| |
| if (sysctl(which, 2, &info, &size, NULL, 0)) |
| return UV__ERR(errno); |
| |
| return (uint64_t) info.free * sysconf(_SC_PAGESIZE); |
| } |
| |
| |
| uint64_t uv_get_total_memory(void) { |
| uint64_t info; |
| int which[] = {CTL_HW, HW_PHYSMEM64}; |
| size_t size = sizeof(info); |
| |
| if (sysctl(which, 2, &info, &size, NULL, 0)) |
| return UV__ERR(errno); |
| |
| return (uint64_t) info; |
| } |
| |
| |
| uint64_t uv_get_constrained_memory(void) { |
| return 0; /* Memory constraints are unknown. */ |
| } |
| |
| |
| int uv_resident_set_memory(size_t* rss) { |
| 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, 6, &kinfo, &size, NULL, 0) < 0) |
| return UV__ERR(errno); |
| |
| *rss = kinfo.p_vm_rssize * page_size; |
| return 0; |
| } |
| |
| |
| int uv_uptime(double* uptime) { |
| time_t now; |
| struct timeval info; |
| size_t size = sizeof(info); |
| static int which[] = {CTL_KERN, KERN_BOOTTIME}; |
| |
| if (sysctl(which, 2, &info, &size, NULL, 0)) |
| return UV__ERR(errno); |
| |
| now = time(NULL); |
| |
| *uptime = (double)(now - info.tv_sec); |
| return 0; |
| } |
| |
| |
| int uv_cpu_info(uv_cpu_info_t** cpu_infos, int* count) { |
| 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,0}; |
| size_t size; |
| int i; |
| uv_cpu_info_t* cpu_info; |
| |
| size = sizeof(model); |
| if (sysctl(which, 2, &model, &size, NULL, 0)) |
| return UV__ERR(errno); |
| |
| which[1] = HW_NCPU; |
| size = sizeof(numcpus); |
| if (sysctl(which, 2, &numcpus, &size, NULL, 0)) |
| return UV__ERR(errno); |
| |
| *cpu_infos = uv__malloc(numcpus * sizeof(**cpu_infos)); |
| if (!(*cpu_infos)) |
| return UV_ENOMEM; |
| |
| *count = numcpus; |
| |
| which[1] = HW_CPUSPEED; |
| size = sizeof(cpuspeed); |
| if (sysctl(which, 2, &cpuspeed, &size, NULL, 0)) { |
| uv__free(*cpu_infos); |
| return UV__ERR(errno); |
| } |
| |
| size = sizeof(info); |
| which[0] = CTL_KERN; |
| which[1] = KERN_CPTIME2; |
| for (i = 0; i < numcpus; i++) { |
| which[2] = i; |
| size = sizeof(info); |
| if (sysctl(which, 3, &info, &size, NULL, 0)) { |
| uv__free(*cpu_infos); |
| return UV__ERR(errno); |
| } |
| |
| 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; |
| } |
| |
| |
| void uv_free_cpu_info(uv_cpu_info_t* cpu_infos, int count) { |
| int i; |
| |
| for (i = 0; i < count; i++) { |
| uv__free(cpu_infos[i].model); |
| } |
| |
| uv__free(cpu_infos); |
| } |