X-Git-Url: http://git.liburcu.org/?p=userspace-rcu.git;a=blobdiff_plain;f=urcu-defer-impl.h;h=8f1e5a52c7a9bf769ef0f2224c8d0872a7a89648;hp=f65e41086022f2613bdaf251611a378afb6e5a3d;hb=7a3e2ed26a6be1deac2cfde1d062526497d4ae9f;hpb=bd252a04bbbb163aa4d8864b1e1e5a3a4d9d0892

diff --git a/urcu-defer-impl.h b/urcu-defer-impl.h
index f65e410..8f1e5a5 100644
--- a/urcu-defer-impl.h
+++ b/urcu-defer-impl.h
@@ -49,6 +49,7 @@
 #include <urcu/list.h>
 #include <urcu/system.h>
 #include <urcu/tls-compat.h>
+#include "urcu-die.h"
 
 /*
  * Number of entries in the per-thread defer queue. Must be power of 2.
@@ -141,17 +142,12 @@ static void mutex_lock_defer(pthread_mutex_t *mutex)
 
 #ifndef DISTRUST_SIGNALS_EXTREME
 	ret = pthread_mutex_lock(mutex);
-	if (ret) {
-		perror("Error in pthread mutex lock");
-		exit(-1);
-	}
+	if (ret)
+		urcu_die(ret);
 #else /* #ifndef DISTRUST_SIGNALS_EXTREME */
 	while ((ret = pthread_mutex_trylock(mutex)) != 0) {
-		if (ret != EBUSY && ret != EINTR) {
-			printf("ret = %d, errno = %d\n", ret, errno);
-			perror("Error in pthread mutex lock");
-			exit(-1);
-		}
+		if (ret != EBUSY && ret != EINTR)
+			urcu_die(ret);
 		poll(NULL,0,10);
 	}
 #endif /* #else #ifndef DISTRUST_SIGNALS_EXTREME */
@@ -164,8 +160,9 @@ static void wake_up_defer(void)
 {
 	if (caa_unlikely(uatomic_read(&defer_thread_futex) == -1)) {
 		uatomic_set(&defer_thread_futex, 0);
-		futex_noasync(&defer_thread_futex, FUTEX_WAKE, 1,
-		      NULL, NULL, 0);
+		if (futex_noasync(&defer_thread_futex, FUTEX_WAKE, 1,
+				NULL, NULL, 0) < 0)
+			urcu_die(errno);
 	}
 }
 
@@ -202,9 +199,22 @@ static void wait_defer(void)
 		uatomic_set(&defer_thread_futex, 0);
 	} else {
 		cmm_smp_rmb();	/* Read queue before read futex */
-		if (uatomic_read(&defer_thread_futex) == -1)
-			futex_noasync(&defer_thread_futex, FUTEX_WAIT, -1,
-			      NULL, NULL, 0);
+		if (uatomic_read(&defer_thread_futex) != -1)
+			return;
+		while (futex_noasync(&defer_thread_futex, FUTEX_WAIT, -1,
+				NULL, NULL, 0)) {
+			switch (errno) {
+			case EWOULDBLOCK:
+				/* Value already changed. */
+				return;
+			case EINTR:
+				/* Retry if interrupted by signal. */
+				break;	/* Get out of switch. */
+			default:
+				/* Unexpected error. */
+				urcu_die(errno);
+			}
+		}
 	}
 }