X-Git-Url: http://git.liburcu.org/?a=blobdiff_plain;f=src%2Fbin%2Flttng-sessiond%2Fmain.c;h=a569c04155a05fe23e61cc8596028771332c8995;hb=02425e05073412f9e6f18e29662be361f30464f5;hp=a8751c696a62c58a5b634d2671be6971369dacde;hpb=4ef4b5a2d21c914922c2f5fe09993240d2bd205f;p=lttng-tools.git

diff --git a/src/bin/lttng-sessiond/main.c b/src/bin/lttng-sessiond/main.c
index a8751c696..a569c0415 100644
--- a/src/bin/lttng-sessiond/main.c
+++ b/src/bin/lttng-sessiond/main.c
@@ -1113,7 +1113,7 @@ static void signal_consumer_condition(struct consumer_data *data, int state)
  */
 static void *thread_manage_consumer(void *data)
 {
-	int sock = -1, i, ret, pollfd, err = -1;
+	int sock = -1, i, ret, pollfd, err = -1, should_quit = 0;
 	uint32_t revents, nb_fd;
 	enum lttcomm_return_code code;
 	struct lttng_poll_event events;
@@ -1271,6 +1271,15 @@ restart:
 	/* Infinite blocking call, waiting for transmission */
 restart_poll:
 	while (1) {
+		health_code_update();
+
+		/* Exit the thread because the thread quit pipe has been triggered. */
+		if (should_quit) {
+			/* Not a health error. */
+			err = 0;
+			goto exit;
+		}
+
 		health_poll_entry();
 		ret = lttng_poll_wait(&events, -1);
 		health_poll_exit();
@@ -1293,12 +1302,12 @@ restart_poll:
 
 			health_code_update();
 
-			/* Thread quit pipe has been closed. Killing thread. */
-			ret = sessiond_check_thread_quit_pipe(pollfd, revents);
-			if (ret) {
-				err = 0;
-				goto exit;
-			}
+			/*
+			 * Thread quit pipe has been triggered, flag that we should stop
+			 * but continue the current loop to handle potential data from
+			 * consumer.
+			 */
+			should_quit = sessiond_check_thread_quit_pipe(pollfd, revents);
 
 			if (pollfd == sock) {
 				/* Event on the consumerd socket */
@@ -1327,11 +1336,8 @@ restart_poll:
 					ERR("Handling metadata request");
 					goto error;
 				}
-				break;
-			} else {
-				ERR("Unknown pollfd");
-				goto error;
 			}
+			/* No need for an else branch all FDs are tested prior. */
 		}
 		health_code_update();
 	}
@@ -3016,6 +3022,7 @@ static int process_client_msg(struct command_ctx *cmd_ctx, int sock,
 			}
 
 			/* 32-bit */
+			pthread_mutex_lock(&ustconsumer32_data.pid_mutex);
 			if (consumerd32_bin[0] != '\0' &&
 					ustconsumer32_data.pid == 0 &&
 					cmd_ctx->lsm->cmd_type != LTTNG_REGISTER_CONSUMER) {
@@ -3202,12 +3209,14 @@ skip_domain:
 
 			if (bytecode_len > LTTNG_FILTER_MAX_LEN) {
 				ret = LTTNG_ERR_FILTER_INVAL;
+				free(filter_expression);
 				free(exclusion);
 				goto error;
 			}
 
 			bytecode = zmalloc(bytecode_len);
 			if (!bytecode) {
+				free(filter_expression);
 				free(exclusion);
 				ret = LTTNG_ERR_FILTER_NOMEM;
 				goto error;
@@ -3219,6 +3228,7 @@ skip_domain:
 			if (ret <= 0) {
 				DBG("Nothing recv() from client car len data... continuing");
 				*sock_error = 1;
+				free(filter_expression);
 				free(bytecode);
 				free(exclusion);
 				ret = LTTNG_ERR_FILTER_INVAL;
@@ -3226,6 +3236,7 @@ skip_domain:
 			}
 
 			if ((bytecode->len + sizeof(*bytecode)) != bytecode_len) {
+				free(filter_expression);
 				free(bytecode);
 				free(exclusion);
 				ret = LTTNG_ERR_FILTER_INVAL;
@@ -3465,7 +3476,7 @@ skip_domain:
 	case LTTNG_LIST_CHANNELS:
 	{
 		int nb_chan;
-		struct lttng_channel *channels;
+		struct lttng_channel *channels = NULL;
 
 		nb_chan = cmd_list_channels(cmd_ctx->lsm->domain.type,
 				cmd_ctx->session, &channels);
@@ -4205,7 +4216,7 @@ static void usage(void)
 	fprintf(stderr, "      --verbose-consumer             Verbose mode for consumer. Activate DBG() macro.\n");
 	fprintf(stderr, "      --no-kernel                    Disable kernel tracer\n");
 	fprintf(stderr, "      --jul-tcp-port                 JUL application registration TCP port\n");
-	fprintf(stderr, "  -f  --config                       Load daemon configuration file\n");
+	fprintf(stderr, "  -f  --config PATH                  Load daemon configuration file\n");
 	fprintf(stderr, "  -l  --load PATH                    Load session configuration\n");
 	fprintf(stderr, "      --kmod-probes                  Specify kernel module probes to load\n");
 }