/* 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 <stdio.h>
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#include <assert.h>
#include <errno.h>
#ifndef SUNOS_NO_IFADDRS
# include <ifaddrs.h>
#endif
#include <net/if.h>
#include <sys/loadavg.h>
#include <sys/time.h>
#include <unistd.h>
#include <kstat.h>
#include <fcntl.h>
#if HAVE_PORTS_FS
# include <sys/port.h>
# include <port.h>
# define PORT_FIRED 0x69
# define PORT_UNUSED 0x0
# define PORT_LOADED 0x99
# define PORT_DELETED -1
#endif
#if (!defined(_LP64)) && (_FILE_OFFSET_BITS - 0 == 64)
#define PROCFS_FILE_OFFSET_BITS_HACK 1
#undef _FILE_OFFSET_BITS
#else
#define PROCFS_FILE_OFFSET_BITS_HACK 0
#endif
#include <procfs.h>
#if (PROCFS_FILE_OFFSET_BITS_HACK - 0 == 1)
#define _FILE_OFFSET_BITS 64
#endif
int uv__platform_loop_init(uv_loop_t* loop, int default_loop) {
loop->fs_fd = -1;
return 0;
}
void uv__platform_loop_delete(uv_loop_t* loop) {
if (loop->fs_fd == -1) return;
close(loop->fs_fd);
loop->fs_fd = -1;
}
uint64_t uv_hrtime() {
return (gethrtime());
}
/*
* We could use a static buffer for the path manipulations that we need outside
* of the function, but this function could be called by multiple consumers and
* we don't want to potentially create a race condition in the use of snprintf.
*/
int uv_exepath(char* buffer, size_t* size) {
ssize_t res;
char buf[128];
if (buffer == NULL)
return (-1);
if (size == NULL)
return (-1);
(void) snprintf(buf, sizeof(buf), "/proc/%lu/path/a.out", (unsigned long) getpid());
res = readlink(buf, buffer, *size - 1);
if (res < 0)
return (res);
buffer[res] = '\0';
*size = res;
return (0);
}
uint64_t uv_get_free_memory(void) {
return (uint64_t) sysconf(_SC_PAGESIZE) * sysconf(_SC_AVPHYS_PAGES);
}
uint64_t uv_get_total_memory(void) {
return (uint64_t) sysconf(_SC_PAGESIZE) * sysconf(_SC_PHYS_PAGES);
}
void uv_loadavg(double avg[3]) {
(void) getloadavg(avg, 3);
}
#if HAVE_PORTS_FS
static void uv__fs_event_rearm(uv_fs_event_t *handle) {
if (handle->fd == -1)
return;
if (port_associate(handle->loop->fs_fd,
PORT_SOURCE_FILE,
(uintptr_t) &handle->fo,
FILE_ATTRIB | FILE_MODIFIED,
handle) == -1) {
uv__set_sys_error(handle->loop, errno);
}
handle->fd = PORT_LOADED;
}
static void uv__fs_event_read(uv_loop_t* loop, uv__io_t* w, int revents) {
uv_fs_event_t *handle = NULL;
timespec_t timeout;
port_event_t pe;
int events;
int r;
(void) w;
(void) revents;
do {
uint_t n = 1;
/*
* Note that our use of port_getn() here (and not port_get()) is deliberate:
* there is a bug in event ports (Sun bug 6456558) whereby a zeroed timeout
* causes port_get() to return success instead of ETIME when there aren't
* actually any events (!); by using port_getn() in lieu of port_get(),
* we can at least workaround the bug by checking for zero returned events
* and treating it as we would ETIME.
*/
do {
memset(&timeout, 0, sizeof timeout);
r = port_getn(loop->fs_fd, &pe, 1, &n, &timeout);
}
while (r == -1 && errno == EINTR);
if ((r == -1 && errno == ETIME) || n == 0)
break;
handle = (uv_fs_event_t *)pe.portev_user;
assert((r == 0) && "unexpected port_get() error");
events = 0;
if (pe.portev_events & (FILE_ATTRIB | FILE_MODIFIED))
events |= UV_CHANGE;
if (pe.portev_events & ~(FILE_ATTRIB | FILE_MODIFIED))
events |= UV_RENAME;
assert(events != 0);
handle->fd = PORT_FIRED;
handle->cb(handle, NULL, events, 0);
}
while (handle->fd != PORT_DELETED);
if (handle != NULL && handle->fd != PORT_DELETED)
uv__fs_event_rearm(handle);
}
int uv_fs_event_init(uv_loop_t* loop,
uv_fs_event_t* handle,
const char* filename,
uv_fs_event_cb cb,
int flags) {
int portfd;
int first_run = 0;
if (loop->fs_fd == -1) {
if ((portfd = port_create()) == -1) {
uv__set_sys_error(loop, errno);
return -1;
}
loop->fs_fd = portfd;
first_run = 1;
}
uv__handle_init(loop, (uv_handle_t*)handle, UV_FS_EVENT);
uv__handle_start(handle); /* FIXME shouldn't start automatically */
handle->filename = strdup(filename);
handle->fd = PORT_UNUSED;
handle->cb = cb;
memset(&handle->fo, 0, sizeof handle->fo);
handle->fo.fo_name = handle->filename;
uv__fs_event_rearm(handle);
if (first_run) {
uv__io_init(&loop->fs_event_watcher, uv__fs_event_read, portfd, UV__IO_READ);
uv__io_start(loop, &loop->fs_event_watcher);
}
return 0;
}
void uv__fs_event_close(uv_fs_event_t* handle) {
if (handle->fd == PORT_FIRED) {
port_dissociate(handle->loop->fs_fd, PORT_SOURCE_FILE, (uintptr_t)&handle->fo);
}
handle->fd = PORT_DELETED;
free(handle->filename);
handle->filename = NULL;
handle->fo.fo_name = NULL;
uv__handle_stop(handle);
}
#else /* !HAVE_PORTS_FS */
int uv_fs_event_init(uv_loop_t* loop,
uv_fs_event_t* handle,
const char* filename,
uv_fs_event_cb cb,
int flags) {
uv__set_sys_error(loop, ENOSYS);
return -1;
}
void uv__fs_event_close(uv_fs_event_t* handle) {
UNREACHABLE();
}
#endif /* HAVE_PORTS_FS */
char** uv_setup_args(int argc, char** argv) {
return argv;
}
uv_err_t uv_set_process_title(const char* title) {
return uv_ok_;
}
uv_err_t uv_get_process_title(char* buffer, size_t size) {
if (size > 0) {
buffer[0] = '\0';
}
return uv_ok_;
}
uv_err_t uv_resident_set_memory(size_t* rss) {
psinfo_t psinfo;
uv_err_t err;
int fd;
fd = open("/proc/self/psinfo", O_RDONLY);
if (fd == -1)
return uv__new_sys_error(errno);
err = uv_ok_;
if (read(fd, &psinfo, sizeof(psinfo)) == sizeof(psinfo))
*rss = (size_t)psinfo.pr_rssize * 1024;
else
err = uv__new_sys_error(EINVAL);
close(fd);
return err;
}
uv_err_t uv_uptime(double* uptime) {
kstat_ctl_t *kc;
kstat_t *ksp;
kstat_named_t *knp;
long hz = sysconf(_SC_CLK_TCK);
if ((kc = kstat_open()) == NULL)
return uv__new_sys_error(errno);
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 uv_ok_;
}
uv_err_t uv_cpu_info(uv_cpu_info_t** cpu_infos, int* count) {
int lookup_instance;
kstat_ctl_t *kc;
kstat_t *ksp;
kstat_named_t *knp;
uv_cpu_info_t* cpu_info;
if ((kc = kstat_open()) == NULL) {
return uv__new_sys_error(errno);
}
/* Get count of cpus */
lookup_instance = 0;
while ((ksp = kstat_lookup(kc, (char *)"cpu_info", lookup_instance, NULL))) {
lookup_instance++;
}
*cpu_infos = (uv_cpu_info_t*)
malloc(lookup_instance * sizeof(uv_cpu_info_t));
if (!(*cpu_infos)) {
return uv__new_artificial_error(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_named_t *) 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_named_t *) kstat_data_lookup(ksp, (char *)"brand");
assert(knp->data_type == KSTAT_DATA_STRING);
cpu_info->model = strdup(KSTAT_NAMED_STR_PTR(knp));
}
lookup_instance++;
cpu_info++;
}
cpu_info = *cpu_infos;
lookup_instance = 0;
while ((ksp = kstat_lookup(kc, (char *)"cpu", lookup_instance, (char *)"sys"))){
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_named_t *) 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_named_t *) 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_named_t *) 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_named_t *) 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 uv_ok_;
}
void uv_free_cpu_info(uv_cpu_info_t* cpu_infos, int count) {
int i;
for (i = 0; i < count; i++) {
free(cpu_infos[i].model);
}
free(cpu_infos);
}
uv_err_t uv_interface_addresses(uv_interface_address_t** addresses,
int* count) {
#ifdef SUNOS_NO_IFADDRS
return uv__new_artificial_error(UV_ENOSYS);
#else
struct ifaddrs *addrs, *ent;
char ip[INET6_ADDRSTRLEN];
uv_interface_address_t* address;
if (getifaddrs(&addrs) != 0) {
return uv__new_sys_error(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_PACKET)) {
continue;
}
(*count)++;
}
*addresses = (uv_interface_address_t*)
malloc(*count * sizeof(uv_interface_address_t));
if (!(*addresses)) {
return uv__new_artificial_error(UV_ENOMEM);
}
address = *addresses;
for (ent = addrs; ent != NULL; ent = ent->ifa_next) {
memset(&ip, 0, sizeof(ip));
if (!(ent->ifa_flags & IFF_UP && ent->ifa_flags & IFF_RUNNING)) {
continue;
}
if (ent->ifa_addr == NULL) {
continue;
}
address->name = 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);
}
address->is_internal = ent->ifa_flags & IFF_PRIVATE || ent->ifa_flags &
IFF_LOOPBACK ? 1 : 0;
address++;
}
freeifaddrs(addrs);
return uv_ok_;
#endif /* SUNOS_NO_IFADDRS */
}
void uv_free_interface_addresses(uv_interface_address_t* addresses,
int count) {
int i;
for (i = 0; i < count; i++) {
free(addresses[i].name);
}
free(addresses);
}