X-Git-Url: http://git.liburcu.org/?a=blobdiff_plain;f=src%2Fbin%2Flttng-sessiond%2Fcmd.c;h=a23a2b761eac462a4b48869a36b5138a3b71413f;hb=d5979e4a295b782fb44a1dc61fb4e01c47bcdf2c;hp=5d2cba1d467befbde02cfcc44183304303259421;hpb=bef08707d594ea79f311ff04d470436724670754;p=lttng-tools.git

diff --git a/src/bin/lttng-sessiond/cmd.c b/src/bin/lttng-sessiond/cmd.c
index 5d2cba1d4..a23a2b761 100644
--- a/src/bin/lttng-sessiond/cmd.c
+++ b/src/bin/lttng-sessiond/cmd.c
@@ -754,7 +754,7 @@ static int start_kernel_session(struct ltt_kernel_session *ksess, int wpipe)
 
 	/* Setup kernel consumer socket and send fds to it */
 	ret = init_kernel_tracing(ksess);
-	if (ret < 0) {
+	if (ret != 0) {
 		ret = LTTNG_ERR_KERN_START_FAIL;
 		goto error;
 	}
@@ -1076,7 +1076,7 @@ error:
 int cmd_add_context(struct ltt_session *session, int domain,
 		char *channel_name, struct lttng_event_context *ctx, int kwpipe)
 {
-	int ret;
+	int ret, chan_kern_created = 0, chan_ust_created = 0;
 
 	switch (domain) {
 	case LTTNG_DOMAIN_KERNEL:
@@ -1088,6 +1088,7 @@ int cmd_add_context(struct ltt_session *session, int domain,
 			if (ret != LTTNG_OK) {
 				goto error;
 			}
+			chan_kern_created = 1;
 		}
 
 		/* Add kernel context to kernel tracer */
@@ -1106,7 +1107,7 @@ int cmd_add_context(struct ltt_session *session, int domain,
 		if (chan_count == 0) {
 			struct lttng_channel *attr;
 			/* Create default channel */
-			attr = channel_new_default_attr(domain);
+			attr = channel_new_default_attr(domain, usess->buffer_type);
 			if (attr == NULL) {
 				ret = LTTNG_ERR_FATAL;
 				goto error;
@@ -1118,6 +1119,7 @@ int cmd_add_context(struct ltt_session *session, int domain,
 				goto error;
 			}
 			free(attr);
+			chan_ust_created = 1;
 		}
 
 		ret = context_ust_add(usess, domain, ctx, channel_name);
@@ -1136,9 +1138,30 @@ int cmd_add_context(struct ltt_session *session, int domain,
 		goto error;
 	}
 
-	ret = LTTNG_OK;
+	return LTTNG_OK;
 
 error:
+	if (chan_kern_created) {
+		struct ltt_kernel_channel *kchan =
+			trace_kernel_get_channel_by_name(DEFAULT_CHANNEL_NAME,
+					session->kernel_session);
+		/* Created previously, this should NOT fail. */
+		assert(kchan);
+		kernel_destroy_channel(kchan);
+	}
+
+	if (chan_ust_created) {
+		struct ltt_ust_channel *uchan =
+			trace_ust_find_channel_by_name(
+					session->ust_session->domain_global.channels,
+					DEFAULT_CHANNEL_NAME);
+		/* Created previously, this should NOT fail. */
+		assert(uchan);
+		/* Remove from the channel list of the session. */
+		trace_ust_delete_channel(session->ust_session->domain_global.channels,
+				uchan);
+		trace_ust_destroy_channel(uchan);
+	}
 	return ret;
 }
 
@@ -1166,7 +1189,8 @@ int cmd_enable_event(struct ltt_session *session, struct lttng_domain *domain,
 		kchan = trace_kernel_get_channel_by_name(channel_name,
 				session->kernel_session);
 		if (kchan == NULL) {
-			attr = channel_new_default_attr(LTTNG_DOMAIN_KERNEL);
+			attr = channel_new_default_attr(LTTNG_DOMAIN_KERNEL,
+					LTTNG_BUFFER_GLOBAL);
 			if (attr == NULL) {
 				ret = LTTNG_ERR_FATAL;
 				goto error;
@@ -1216,7 +1240,8 @@ int cmd_enable_event(struct ltt_session *session, struct lttng_domain *domain,
 				channel_name);
 		if (uchan == NULL) {
 			/* Create default channel */
-			attr = channel_new_default_attr(LTTNG_DOMAIN_UST);
+			attr = channel_new_default_attr(LTTNG_DOMAIN_UST,
+					usess->buffer_type);
 			if (attr == NULL) {
 				ret = LTTNG_ERR_FATAL;
 				goto error;
@@ -1286,7 +1311,8 @@ int cmd_enable_event_all(struct ltt_session *session,
 				session->kernel_session);
 		if (kchan == NULL) {
 			/* Create default channel */
-			attr = channel_new_default_attr(LTTNG_DOMAIN_KERNEL);
+			attr = channel_new_default_attr(LTTNG_DOMAIN_KERNEL,
+					LTTNG_BUFFER_GLOBAL);
 			if (attr == NULL) {
 				ret = LTTNG_ERR_FATAL;
 				goto error;
@@ -1350,7 +1376,8 @@ int cmd_enable_event_all(struct ltt_session *session,
 				channel_name);
 		if (uchan == NULL) {
 			/* Create default channel */
-			attr = channel_new_default_attr(LTTNG_DOMAIN_UST);
+			attr = channel_new_default_attr(LTTNG_DOMAIN_UST,
+					usess->buffer_type);
 			if (attr == NULL) {
 				ret = LTTNG_ERR_FATAL;
 				goto error;
@@ -1549,7 +1576,7 @@ int cmd_stop_trace(struct ltt_session *session)
 	session->enabled = 0;
 
 	/* Kernel tracer */
-	if (ksession) {
+	if (ksession && ksession->started) {
 		DBG("Stop kernel tracing");
 
 		/* Flush metadata if exist */
@@ -1579,7 +1606,7 @@ int cmd_stop_trace(struct ltt_session *session)
 		ksession->started = 0;
 	}
 
-	if (usess) {
+	if (usess && usess->start_trace) {
 		usess->start_trace = 0;
 
 		ret = ust_app_stop_trace_all(usess);
@@ -1827,7 +1854,7 @@ int cmd_register_consumer(struct ltt_session *session, int domain,
 		const char *sock_path, struct consumer_data *cdata)
 {
 	int ret, sock;
-	struct consumer_socket *socket;
+	struct consumer_socket *socket = NULL;
 
 	assert(session);
 	assert(cdata);
@@ -1887,9 +1914,12 @@ int cmd_register_consumer(struct ltt_session *session, int domain,
 		goto error;
 	}
 
-	ret = LTTNG_OK;
+	return LTTNG_OK;
 
 error:
+	if (socket) {
+		consumer_destroy_socket(socket);
+	}
 	return ret;
 }