X-Git-Url: https://git.lttng.org/?p=lttng-tools.git;a=blobdiff_plain;f=src%2Fbin%2Flttng-relayd%2Fmain.c;h=81f10b78368c46401085477a51b799f90cf8fb19;hp=5a12ba88847b01ef631639bf2a123fe63deb5cd4;hb=26c9d55e1367d3aff6e501b5a1295edd1ccbc210;hpb=e3678fd81cd6d83ea45f38a3d834bbdcf83f3f8f

diff --git a/src/bin/lttng-relayd/main.c b/src/bin/lttng-relayd/main.c
index 5a12ba888..81f10b783 100644
--- a/src/bin/lttng-relayd/main.c
+++ b/src/bin/lttng-relayd/main.c
@@ -74,6 +74,7 @@ static int thread_quit_pipe[2] = { -1, -1 };
  */
 static int relay_cmd_pipe[2] = { -1, -1 };
 
+/* Shared between threads */
 static int dispatch_thread_exit;
 
 static pthread_t listener_thread;
@@ -246,7 +247,9 @@ int notify_thread_pipe(int wpipe)
 {
 	int ret;
 
-	ret = write(wpipe, "!", 1);
+	do {
+		ret = write(wpipe, "!", 1);
+	} while (ret < 0 && errno == EINTR);
 	if (ret < 0) {
 		PERROR("write poll pipe");
 	}
@@ -270,7 +273,7 @@ void stop_threads(void)
 	}
 
 	/* Dispatch thread */
-	dispatch_thread_exit = 1;
+	CMM_STORE_SHARED(dispatch_thread_exit, 1);
 	futex_nto1_wake(&relay_cmd_queue.futex);
 }
 
@@ -606,7 +609,7 @@ void *relay_thread_dispatcher(void *data)
 
 	DBG("[thread] Relay dispatcher started");
 
-	while (!dispatch_thread_exit) {
+	while (!CMM_LOAD_SHARED(dispatch_thread_exit)) {
 		/* Atomically prepare the queue futex */
 		futex_nto1_prepare(&relay_cmd_queue.futex);
 
@@ -627,8 +630,10 @@ void *relay_thread_dispatcher(void *data)
 			 * call is blocking so we can be assured that the data will be read
 			 * at some point in time or wait to the end of the world :)
 			 */
-			ret = write(relay_cmd_pipe[1], relay_cmd,
-					sizeof(struct relay_command));
+			do {
+				ret = write(relay_cmd_pipe[1], relay_cmd,
+						sizeof(struct relay_command));
+			} while (ret < 0 && errno == EINTR);
 			free(relay_cmd);
 			if (ret < 0) {
 				PERROR("write cmd pipe");
@@ -1054,8 +1059,10 @@ int relay_recv_metadata(struct lttcomm_relayd_hdr *recv_hdr,
 		goto end;
 	}
 
-	ret = write(metadata_stream->fd, metadata_struct->payload,
-			payload_size);
+	do {
+		ret = write(metadata_stream->fd, metadata_struct->payload,
+				payload_size);
+	} while (ret < 0 && errno == EINTR);
 	if (ret < (payload_size)) {
 		ERR("Relay error writing metadata on file");
 		ret = -1;
@@ -1189,7 +1196,9 @@ int relay_process_data(struct relay_command *cmd, struct lttng_ht *streams_ht)
 		goto end;
 	}
 
-	ret = write(stream->fd, data_buffer, data_size);
+	do {
+		ret = write(stream->fd, data_buffer, data_size);
+	} while (ret < 0 && errno == EINTR);
 	if (ret < data_size) {
 		ERR("Relay error writing data to file");
 		ret = -1;