static void
native_sleep(rb_thread_t *th, struct timeval *tv)
{
struct timespec ts;
struct timeval tvn;
if (tv) {
gettimeofday(&tvn, NULL);
ts.tv_sec = tvn.tv_sec + tv->tv_sec;
ts.tv_nsec = (tvn.tv_usec + tv->tv_usec) * 1000;
if (ts.tv_nsec >= PER_NANO){
ts.tv_sec += 1;
ts.tv_nsec -= PER_NANO;
}
}
thread_debug("native_sleep %ld\n", (long)(tv ? tv->tv_sec : -1));
GVL_UNLOCK_BEGIN();
{
pthread_mutex_lock(&th->interrupt_lock);
th->unblock.func = ubf_pthread_cond_signal;
th->unblock.arg = th;
if (RUBY_VM_INTERRUPTED(th)) {
/* interrupted. return immediate */
thread_debug("native_sleep: interrupted before sleep\n");
}
else {
if (tv == 0 || ts.tv_sec < tvn.tv_sec /* overflow */ ) {
int r;
thread_debug("native_sleep: pthread_cond_wait start\n");
r = pthread_cond_wait(&th->native_thread_data.sleep_cond,
&th->interrupt_lock);
if (r) rb_bug_errno("pthread_cond_wait", r);
thread_debug("native_sleep: pthread_cond_wait end\n");
}
else {
int r;
thread_debug("native_sleep: pthread_cond_timedwait start (%ld, %ld)\n",
(unsigned long)ts.tv_sec, ts.tv_nsec);
r = pthread_cond_timedwait(&th->native_thread_data.sleep_cond,
&th->interrupt_lock, &ts);
if (r && r != ETIMEDOUT) rb_bug_errno("pthread_cond_timedwait", r);
thread_debug("native_sleep: pthread_cond_timedwait end (%d)\n", r);
}
}
th->unblock.func = 0;
th->unblock.arg = 0;
pthread_mutex_unlock(&th->interrupt_lock);
}
GVL_UNLOCK_END();
thread_debug("native_sleep done\n");
}
static sighandler_t
ruby_signal(int signum, sighandler_t handler)
{
struct sigaction sigact, old;
#if 0
rb_trap_accept_nativethreads[signum] = 0;
#endif
sigemptyset(&sigact.sa_mask);
#ifdef USE_SIGALTSTACK
sigact.sa_sigaction = (ruby_sigaction_t*)handler;
sigact.sa_flags = SA_SIGINFO;
#else
sigact.sa_handler = handler;
sigact.sa_flags = 0;
#endif
#ifdef SA_NOCLDWAIT
if (signum == SIGCHLD && handler == SIG_IGN)
sigact.sa_flags |= SA_NOCLDWAIT;
#endif
#if defined(SA_ONSTACK) && defined(USE_SIGALTSTACK)
if (signum == SIGSEGV)
sigact.sa_flags |= SA_ONSTACK;
#endif
if (sigaction(signum, &sigact, &old) < 0) {
if (errno != 0 && errno != EINVAL) {
rb_bug_errno("sigaction", errno);
}
}
return old.sa_handler;
}
static void
native_cond_initialize(rb_thread_cond_t *cond, int flags)
{
int r;
pthread_condattr_t attr;
pthread_condattr_init(&attr);
#if USE_MONOTONIC_COND
cond->clockid = CLOCK_REALTIME;
if (flags & RB_CONDATTR_CLOCK_MONOTONIC) {
r = pthread_condattr_setclock(&attr, CLOCK_MONOTONIC);
if (r == 0) {
cond->clockid = CLOCK_MONOTONIC;
}
}
#endif
r = pthread_cond_init(&cond->cond, &attr);
if (r != 0) {
rb_bug_errno("pthread_cond_init", r);
}
return;
}
static void
native_cond_initialize(rb_nativethread_cond_t *cond, int flags)
{
#ifdef HAVE_PTHREAD_COND_INIT
int r;
# if USE_MONOTONIC_COND
pthread_condattr_t attr;
pthread_condattr_init(&attr);
cond->clockid = CLOCK_REALTIME;
if (flags & RB_CONDATTR_CLOCK_MONOTONIC) {
r = pthread_condattr_setclock(&attr, CLOCK_MONOTONIC);
if (r == 0) {
cond->clockid = CLOCK_MONOTONIC;
}
}
r = pthread_cond_init(&cond->cond, &attr);
pthread_condattr_destroy(&attr);
# else
r = pthread_cond_init(&cond->cond, NULL);
# endif
if (r != 0) {
rb_bug_errno("pthread_cond_init", r);
}
return;
#endif
}
static void
native_cond_destroy(rb_thread_cond_t *cond)
{
int r = pthread_cond_destroy(&cond->cond);
if (r != 0) {
rb_bug_errno("pthread_cond_destroy", r);
}
}
static void
native_cond_initialize(pthread_cond_t *cond)
{
int r = pthread_cond_init(cond, 0);
if (r != 0) {
rb_bug_errno("pthread_cond_init", r);
}
}
static void
native_mutex_destroy(pthread_mutex_t *lock)
{
int r = pthread_mutex_destroy(lock);
if (r != 0) {
rb_bug_errno("pthread_mutex_destroy", r);
}
}
static void
native_mutex_initialize(pthread_mutex_t *lock)
{
int r = pthread_mutex_init(lock, 0);
if (r != 0) {
rb_bug_errno("pthread_mutex_init", r);
}
}
static void
native_cond_broadcast(rb_thread_cond_t *cond)
{
int r = pthread_cond_broadcast(&cond->cond);
if (r != 0) {
rb_bug_errno("native_cond_broadcast", r);
}
}
static void
native_cond_signal(rb_thread_cond_t *cond)
{
int r = pthread_cond_signal(&cond->cond);
if (r != 0) {
rb_bug_errno("pthread_cond_signal", r);
}
}
/*static*/ void
native_mutex_unlock(pthread_mutex_t *lock)
{
int r;
if ((r = pthread_mutex_unlock(lock)) != 0) {
rb_bug_errno("pthread_mutex_unlock", r);
}
}
static void
native_cond_wait(rb_nativethread_cond_t *cond, pthread_mutex_t *mutex)
{
int r = pthread_cond_wait(&cond->cond, mutex);
if (r != 0) {
rb_bug_errno("pthread_cond_wait", r);
}
}
static int
native_cond_timedwait(pthread_cond_t *cond, pthread_mutex_t *mutex, struct timespec *ts)
{
int r = pthread_cond_timedwait(cond, mutex, ts);
if (r != 0 && r != ETIMEDOUT && r != EINTR /* Linux */) {
rb_bug_errno("pthread_cond_timedwait", r);
}
return r;
}
static void
native_mutex_unlock(pthread_mutex_t *lock)
{
int r;
mutex_debug("unlock", lock);
if ((r = pthread_mutex_unlock(lock)) != 0) {
rb_bug_errno("pthread_mutex_unlock", r);
}
}
static void
native_cond_destroy(rb_nativethread_cond_t *cond)
{
#ifdef HAVE_PTHREAD_COND_INIT
int r = pthread_cond_destroy(&cond->cond);
if (r != 0) {
rb_bug_errno("pthread_cond_destroy", r);
}
#endif
}
static void
native_cond_broadcast(rb_nativethread_cond_t *cond)
{
int r;
do {
r = pthread_cond_broadcast(&cond->cond);
} while (r == EAGAIN);
if (r != 0) {
rb_bug_errno("native_cond_broadcast", r);
}
}
static void
native_cond_signal(rb_nativethread_cond_t *cond)
{
int r;
do {
r = pthread_cond_signal(&cond->cond);
} while (r == EAGAIN);
if (r != 0) {
rb_bug_errno("pthread_cond_signal", r);
}
}
static inline int
native_mutex_trylock(pthread_mutex_t *lock)
{
int r;
if ((r = pthread_mutex_trylock(lock)) != 0) {
if (r == EBUSY) {
return EBUSY;
}
else {
rb_bug_errno("pthread_mutex_trylock", r);
}
}
return 0;
}
static int
native_cond_timedwait(rb_nativethread_cond_t *cond, pthread_mutex_t *mutex, const struct timespec *ts)
{
int r;
/*
* An old Linux may return EINTR. Even though POSIX says
* "These functions shall not return an error code of [EINTR]".
* http://pubs.opengroup.org/onlinepubs/009695399/functions/pthread_cond_timedwait.html
* Let's hide it from arch generic code.
*/
do {
r = pthread_cond_timedwait(&cond->cond, mutex, ts);
} while (r == EINTR);
if (r != 0 && r != ETIMEDOUT) {
rb_bug_errno("pthread_cond_timedwait", r);
}
return r;
}