| /* 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 <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> |
| |
| #include <unistd.h> |
| #include <time.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) == -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; |
| } |
| |
| |
| int uv_exepath(char* buffer, size_t* size) { |
| /* 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; |
| } |
| |
| |
| 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) { |
| #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, 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) { |
| 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; |
| } |
| |
| |
| 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); |
| 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; |
| } |
| |
| |
| 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); |
| } |