/* SimGrid's pthread interposer. Actual implementation of the symbols (see the comment in sthread.h) */
#include "simgrid/s4u/Barrier.hpp"
+#include "simgrid/s4u/ConditionVariable.hpp"
#include "smpi/smpi.h"
#include "xbt/asserts.h"
#include "xbt/ex.h"
return 0;
}
+int sthread_cond_init(sthread_cond_t* cond, sthread_condattr_t* attr)
+{
+ auto cv = sg4::ConditionVariable::create();
+ intrusive_ptr_add_ref(cv.get());
+
+ cond->cond = cv.get();
+ cond->mutex = nullptr;
+ return 0;
+}
+int sthread_cond_signal(sthread_cond_t* cond)
+{
+ XBT_DEBUG("%s(%p)", __func__, cond);
+
+ if (cond->mutex == nullptr)
+ XBT_WARN("No mutex was associated so far with condition variable %p. Safety checks skipped.", cond);
+ else {
+ auto* owner = static_cast<sg4::Mutex*>(cond->mutex)->get_owner();
+ if (owner == nullptr)
+ XBT_WARN("The mutex associated to condition %p is not currently owned by anyone when calling "
+ "pthread_cond_signal(). The signal could get lost.",
+ cond);
+ else if (owner != simgrid::s4u::Actor::self())
+ XBT_WARN("The mutex associated to condition %p is currently owned by %s, not by the thread currently calling "
+ "calling pthread_cond_signal(). The signal could get lost.",
+ cond, owner->get_cname());
+ }
+
+ static_cast<sg4::ConditionVariable*>(cond->cond)->notify_one();
+ return 0;
+}
+int sthread_cond_broadcast(sthread_cond_t* cond)
+{
+ XBT_DEBUG("%s(%p)", __func__, cond);
+
+ if (cond->mutex == nullptr)
+ XBT_WARN("No mutex was associated so far with condition variable %p. Safety checks skipped.", cond);
+ else {
+ auto* owner = static_cast<sg4::Mutex*>(cond->mutex)->get_owner();
+ if (owner == nullptr)
+ XBT_WARN("The mutex associated to condition %p is not currently owned by anyone when calling "
+ "pthread_cond_broadcast(). The signal could get lost.",
+ cond);
+ else if (owner != simgrid::s4u::Actor::self())
+ XBT_WARN("The mutex associated to condition %p is currently owned by %s, not by the thread currently calling "
+ "calling pthread_cond_broadcast(). The signal could get lost.",
+ cond, owner->get_cname());
+ }
+
+ static_cast<sg4::ConditionVariable*>(cond->cond)->notify_all();
+ return 0;
+}
+int sthread_cond_wait(sthread_cond_t* cond, sthread_mutex_t* mutex)
+{
+ XBT_DEBUG("%s(%p)", __func__, cond);
+
+ if (cond->mutex == nullptr)
+ cond->mutex = mutex->mutex;
+ else if (cond->mutex != mutex->mutex)
+ XBT_WARN("The condition %p is now waited with mutex %p while it was previoulsy waited with mutex %p. sthread may "
+ "not work with such a dangerous code.",
+ cond, cond->mutex, mutex->mutex);
+
+ static_cast<sg4::ConditionVariable*>(cond->cond)->wait(static_cast<sg4::Mutex*>(mutex->mutex));
+ return 0;
+}
+int sthread_cond_timedwait(sthread_cond_t* cond, sthread_mutex_t* mutex, const struct timespec* abs_timeout)
+{
+ XBT_DEBUG("%s(%p)", __func__, cond);
+
+ if (cond->mutex == nullptr)
+ cond->mutex = mutex->mutex;
+ else if (cond->mutex != mutex->mutex)
+ XBT_WARN("The condition %p is now waited with mutex %p while it was previoulsy waited with mutex %p. sthread may "
+ "not work with such a dangerous code.",
+ cond, cond->mutex, mutex->mutex);
+
+ THROW_UNIMPLEMENTED;
+}
+int sthread_cond_destroy(sthread_cond_t* cond)
+{
+ XBT_DEBUG("%s(%p)", __func__, cond);
+ intrusive_ptr_release(static_cast<sg4::ConditionVariable*>(cond->cond));
+ return 0;
+}
+
int sthread_sem_init(sthread_sem_t* sem, int /*pshared*/, unsigned int value)
{
auto s = sg4::Semaphore::create(value);
simgrid::s4u::this_actor::sleep_for(seconds);
return 0;
}
-
-#if 0
-int pthread_cond_init(pthread_cond_t *cond, pthread_condattr_t *cond_attr) {
- *cond = sg_cond_init();
- return 0;
-}
-
-int pthread_cond_signal(pthread_cond_t *cond) {
- sg_cond_notify_one(*cond);
- return 0;
-}
-
-int pthread_cond_broadcast(pthread_cond_t *cond) {
- sg_cond_notify_all(*cond);
- return 0;
-}
-
-int pthread_cond_wait(pthread_cond_t *cond, pthread_mutex_t *mutex) {
- sg_cond_wait(*cond, *mutex);
- return 0;
-}
-
-int pthread_cond_destroy(pthread_cond_t *cond) {
- sg_cond_destroy(*cond);
- return 0;
-}
-#endif
