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/* 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 <ifaddrs.h>
#include <net/if.h>
#include <net/if_dl.h>
#include <errno.h>
#include <fcntl.h>
#include <kvm.h>
#include <paths.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#undef NANOSEC
#define NANOSEC ((uint64_t) 1e9)
static char *process_title;
int uv__platform_loop_init(uv_loop_t* loop) {
return uv__kqueue_init(loop);
}
void uv__platform_loop_delete(uv_loop_t* loop) {
}
uint64_t uv__hrtime(uv_clocktype_t type) {
struct timespec ts;
clock_gettime(CLOCK_MONOTONIC, &ts);
return (((uint64_t) ts.tv_sec) * NANOSEC + ts.tv_nsec);
}
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 -EINVAL;
mypid = getpid();
for (;;) {
err = -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 = -errno;
goto out;
}
argsbuf_size *= 2U;
}
if (argsbuf[0] == NULL) {
err = -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 -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 -errno;
return (uint64_t) info;
}
char** uv_setup_args(int argc, char** argv) {
process_title = argc ? uv__strdup(argv[0]) : NULL;
return argv;
}
int uv_set_process_title(const char* title) {
uv__free(process_title);
process_title = uv__strdup(title);
setproctitle(title);
return 0;
}
int uv_get_process_title(char* buffer, size_t size) {
if (process_title) {
strncpy(buffer, process_title, size);
} else {
if (size > 0) {
buffer[0] = '\0';
}
}
return 0;
}
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 -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 -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 -errno;
which[1] = HW_NCPU;
size = sizeof(numcpus);
if (sysctl(which, 2, &numcpus, &size, NULL, 0))
return -errno;
*cpu_infos = uv__malloc(numcpus * sizeof(**cpu_infos));
if (!(*cpu_infos))
return -ENOMEM;
*count = numcpus;
which[1] = HW_CPUSPEED;
size = sizeof(cpuspeed);
if (sysctl(which, 2, &cpuspeed, &size, NULL, 0)) {
SAVE_ERRNO(uv__free(*cpu_infos));
return -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)) {
SAVE_ERRNO(uv__free(*cpu_infos));
return -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);
}
int uv_interface_addresses(uv_interface_address_t** addresses,
int* count) {
struct ifaddrs *addrs, *ent;
uv_interface_address_t* address;
int i;
struct sockaddr_dl *sa_addr;
if (getifaddrs(&addrs) != 0)
return -errno;
*count = 0;
/* Count the number of interfaces */
for (ent = addrs; ent != NULL; ent = ent->ifa_next) {
if (!((ent->ifa_flags & IFF_UP) && (ent->ifa_flags & IFF_RUNNING)) ||
(ent->ifa_addr == NULL) ||
(ent->ifa_addr->sa_family != PF_INET)) {
continue;
}
(*count)++;
}
*addresses = uv__malloc(*count * sizeof(**addresses));
if (!(*addresses)) {
freeifaddrs(addrs);
return -ENOMEM;
}
address = *addresses;
for (ent = addrs; ent != NULL; ent = ent->ifa_next) {
if (!((ent->ifa_flags & IFF_UP) && (ent->ifa_flags & IFF_RUNNING)))
continue;
if (ent->ifa_addr == NULL)
continue;
if (ent->ifa_addr->sa_family != PF_INET)
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_LOOPBACK);
address++;
}
/* Fill in physical addresses for each interface */
for (ent = addrs; ent != NULL; ent = ent->ifa_next) {
if (!((ent->ifa_flags & IFF_UP) && (ent->ifa_flags & IFF_RUNNING)) ||
(ent->ifa_addr == NULL) ||
(ent->ifa_addr->sa_family != AF_LINK)) {
continue;
}
address = *addresses;
for (i = 0; i < (*count); i++) {
if (strcmp(address->name, ent->ifa_name) == 0) {
sa_addr = (struct sockaddr_dl*)(ent->ifa_addr);
memcpy(address->phys_addr, LLADDR(sa_addr), sizeof(address->phys_addr));
}
address++;
}
}
freeifaddrs(addrs);
return 0;
}
void uv_free_interface_addresses(uv_interface_address_t* addresses,
int count) {
int i;
for (i = 0; i < count; i++) {
uv__free(addresses[i].name);
}
uv__free(addresses);
}
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