static void embed_thread_runner(void* arg) {
int r;
int fd;
int timeout;
while (!embed_closed) {
fd = uv_backend_fd(uv_default_loop());
timeout = uv_backend_timeout(uv_default_loop());
do {
#if defined(HAVE_KQUEUE)
struct timespec ts;
ts.tv_sec = timeout / 1000;
ts.tv_nsec = (timeout % 1000) * 1000000;
r = kevent(fd, NULL, 0, NULL, 0, &ts);
#elif defined(HAVE_EPOLL)
{
struct epoll_event ev;
r = epoll_wait(fd, &ev, 1, timeout);
}
#endif
} while (r == -1 && errno == EINTR);
uv_async_send(&embed_async);
uv_sem_wait(&embed_sem);
}
}
int uv_run(uv_loop_t *loop, uv_run_mode mode) {
DWORD timeout;
int r;
int ran_pending;
void (*poll)(uv_loop_t* loop, DWORD timeout);
if (pGetQueuedCompletionStatusEx)
poll = &uv_poll_ex;
else
poll = &uv_poll;
r = uv__loop_alive(loop);
if (!r)
uv_update_time(loop);
while (r != 0 && loop->stop_flag == 0) {
uv_update_time(loop);
uv_process_timers(loop);
ran_pending = uv_process_reqs(loop);
uv_idle_invoke(loop);
uv_prepare_invoke(loop);
timeout = 0;
if ((mode == UV_RUN_ONCE && !ran_pending) || mode == UV_RUN_DEFAULT)
timeout = uv_backend_timeout(loop);
(*poll)(loop, timeout);
uv_check_invoke(loop);
uv_process_endgames(loop);
if (mode == UV_RUN_ONCE) {
/* UV_RUN_ONCE implies forward progress: at least one callback must have
* been invoked when it returns. uv__io_poll() can return without doing
* I/O (meaning: no callbacks) when its timeout expires - which means we
* have pending timers that satisfy the forward progress constraint.
*
* UV_RUN_NOWAIT makes no guarantees about progress so it's omitted from
* the check.
*/
uv_process_timers(loop);
}
r = uv__loop_alive(loop);
if (mode == UV_RUN_ONCE || mode == UV_RUN_NOWAIT)
break;
}
/* The if statement lets the compiler compile it to a conditional store.
* Avoids dirtying a cache line.
*/
if (loop->stop_flag != 0)
loop->stop_flag = 0;
return r;
}
int uv_run(uv_loop_t* loop, uv_run_mode mode) {
int timeout;
int r;
r = uv__loop_alive(loop);
if (!r)
uv__update_time(loop);
while (r != 0 && loop->stop_flag == 0) {
UV_TICK_START(loop, mode);
uv__update_time(loop);
uv__run_timers(loop);
uv__run_pending(loop);
uv__run_idle(loop);
uv__run_prepare(loop);
timeout = 0;
if ((mode & UV_RUN_NOWAIT) == 0)
timeout = uv_backend_timeout(loop);
uv__io_poll(loop, timeout);
uv__run_check(loop);
uv__run_closing_handles(loop);
if (mode == UV_RUN_ONCE) {
/* UV_RUN_ONCE implies forward progess: at least one callback must have
* been invoked when it returns. uv__io_poll() can return without doing
* I/O (meaning: no callbacks) when its timeout expires - which means we
* have pending timers that satisfy the forward progress constraint.
*
* UV_RUN_NOWAIT makes no guarantees about progress so it's omitted from
* the check.
*/
uv__update_time(loop);
uv__run_timers(loop);
}
r = uv__loop_alive(loop);
UV_TICK_STOP(loop, mode);
if (mode & (UV_RUN_ONCE | UV_RUN_NOWAIT))
break;
}
/* The if statement lets gcc compile it to a conditional store. Avoids
* dirtying a cache line.
*/
if (loop->stop_flag != 0)
loop->stop_flag = 0;
return r;
}
static bool
uv_loop_source_get_next_timeout(void *data, struct timespec *timeout)
{
int uvTimeout = uv_backend_timeout(data);
bool returnValue = ( uvTimeout >= 0 ) && uv_loop_source_check(data);
SOL_DBG("uvTimeout = %d", uvTimeout);
if (returnValue) {
timeout->tv_sec = (int)(uvTimeout / 1000);
timeout->tv_nsec = (uvTimeout % 1000) * 1000000;
}
return returnValue;
}
static void embed_thread_runner(void* arg) {
uv_os_fd_t fd;
int timeout;
while (!embed_closed) {
fd = uv_backend_fd(uv_default_loop());
timeout = uv_backend_timeout(uv_default_loop());
#if defined(_WIN32)
embed_thread_poll_win(fd, timeout);
#else
embed_thread_poll_unix(fd, timeout);
#endif
uv_async_send(&embed_async);
uv_sem_wait(&embed_sem);
}
}
void NodeBindingsMac::PollEvents() {
struct timeval tv;
int timeout = uv_backend_timeout(uv_loop_);
if (timeout != -1) {
tv.tv_sec = timeout / 1000;
tv.tv_usec = (timeout % 1000) * 1000;
}
fd_set readset;
int fd = uv_backend_fd(uv_loop_);
FD_ZERO(&readset);
FD_SET(fd, &readset);
// Wait for new libuv events.
int r;
do {
r = select(fd + 1, &readset, NULL, NULL, timeout == -1 ? NULL : &tv);
} while (r == -1 && errno == EINTR);
}
int uv_run2(uv_loop_t* loop, uv_run_mode mode) {
int r;
if (!uv__loop_alive(loop))
return 0;
do {
uv__update_time(loop);
uv__run_timers(loop);
uv__run_idle(loop);
uv__run_prepare(loop);
uv__run_pending(loop);
uv__io_poll(loop, (mode & UV_RUN_NOWAIT ? 0 : uv_backend_timeout(loop)));
uv__run_check(loop);
uv__run_closing_handles(loop);
r = uv__loop_alive(loop);
} while (r && !(mode & (UV_RUN_ONCE | UV_RUN_NOWAIT)));
return r;
}
int uv_run(uv_loop_t* loop, uv_run_mode mode) {
int timeout;
int r;
r = uv__loop_alive(loop);
while (r != 0 && loop->stop_flag == 0) {
UV_TICK_START(loop, mode);
uv__update_time(loop);
uv__run_timers(loop);
uv__run_idle(loop);
uv__run_prepare(loop);
uv__run_pending(loop);
timeout = 0;
if ((mode & UV_RUN_NOWAIT) == 0)
timeout = uv_backend_timeout(loop);
uv__io_poll(loop, timeout);
uv__run_check(loop);
uv__run_closing_handles(loop);
r = uv__loop_alive(loop);
UV_TICK_STOP(loop, mode);
if (mode & (UV_RUN_ONCE | UV_RUN_NOWAIT))
break;
}
/* The if statement lets gcc compile it to a conditional store. Avoids
* dirtying a cache line.
*/
if (loop->stop_flag != 0)
loop->stop_flag = 0;
return r;
}
int ThreadManager::AdaptorImpl::getBackendTimeout() {
return uv_backend_timeout(&main_loop);
}