X-Git-Url: https://git.tokkee.org/?a=blobdiff_plain;f=src%2Futils%2Fchannel.c;h=7c5c002ae545f43901e5b9dab352329936218b67;hb=7c0c900e329faf456e2b7e1a017a197ef7839c5d;hp=6db9b9512310b8d626ea12f73e33e90a5ff3d34e;hpb=dd9a22a959e81398c7d8c513d36a3e7f08b47d21;p=sysdb.git

diff --git a/src/utils/channel.c b/src/utils/channel.c
index 6db9b95..7c5c002 100644
--- a/src/utils/channel.c
+++ b/src/utils/channel.c
@@ -25,6 +25,10 @@
  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
+#if HAVE_CONFIG_H
+#	include "config.h"
+#endif /* HAVE_CONFIG_H */
+
 #include "utils/channel.h"
 
 #include <assert.h>
@@ -57,6 +61,8 @@ struct sdb_channel {
 	size_t head;
 	size_t tail;
 	_Bool full;
+
+	_Bool shutdown;
 };
 
 /*
@@ -79,7 +85,7 @@ channel_write(sdb_channel_t *chan, const void *data)
 {
 	assert(chan);
 
-	if (chan->full)
+	if (chan->full || chan->shutdown)
 		return -1;
 	else if (! data)
 		return 0;
@@ -199,23 +205,36 @@ sdb_channel_select(sdb_channel_t *chan, int *wantread, void *read_data,
 				break;
 		}
 
+		if (chan->shutdown) {
+			if (read_status)
+				status = EBADF;
+			break;
+		}
+
 		if (timeout) {
 			struct timespec abstime;
 
-			if (clock_gettime(CLOCK_REALTIME, &abstime))
+			if (clock_gettime(CLOCK_REALTIME, &abstime)) {
+				pthread_mutex_unlock(&chan->lock);
 				return -1;
+			}
 
 			abstime.tv_sec += timeout->tv_sec;
 			abstime.tv_nsec += timeout->tv_nsec;
 
+			if (abstime.tv_nsec > 1000000000) {
+				abstime.tv_nsec -= 1000000000;
+				abstime.tv_sec += 1;
+			}
+
 			status = pthread_cond_timedwait(&chan->cond, &chan->lock,
 					&abstime);
 		}
 		else
 			status = pthread_cond_wait(&chan->cond, &chan->lock);
 	}
-
 	pthread_mutex_unlock(&chan->lock);
+
 	if (status) {
 		errno = status;
 		return -1;
@@ -251,5 +270,14 @@ sdb_channel_read(sdb_channel_t *chan, void *data)
 	return status;
 } /* sdb_channel_read */
 
+int
+sdb_channel_shutdown(sdb_channel_t *chan)
+{
+	if (! chan)
+		return -1;
+	chan->shutdown = 1;
+	return 0;
+} /* sdb_channel_shutdown */
+
 /* vim: set tw=78 sw=4 ts=4 noexpandtab : */