Block/unblock thread for GC on semaphore wait.

MoarVM · Jul 21, 2016 · 236058a · 236058a
1 parent c01472d
commit 236058a
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/src/6model/reprs/Semaphore.c b/src/6model/reprs/Semaphore.c
@@ -113,7 +113,9 @@ MVMint64 MVM_semaphore_tryacquire(MVMThreadContext *tc, MVMSemaphore *sem) {
 }
 
 void MVM_semaphore_acquire(MVMThreadContext *tc, MVMSemaphore *sem) {
+    MVM_gc_mark_thread_blocked(tc);
     uv_sem_wait(&sem->body.sem);
+    MVM_gc_mark_thread_unblocked(tc);
 }
 
 void MVM_semaphore_release(MVMThreadContext *tc, MVMSemaphore *sem) {