From: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Date: Thu, 12 Dec 2019 17:58:03 +0000 (-0500)
Subject: sessiond: snapshot: set trace chunk to NULL before closing it
X-Git-Url: http://git.efficios.com/?p=lttng-tools.git;a=commitdiff_plain;h=dbfee52cc949c9ac51976ef4680f2e145aa1f1a9

sessiond: snapshot: set trace chunk to NULL before closing it

Operations are expected to happen in this order with the reworked
trace chunk for clear feature.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Change-Id: I3d655714c4b40b8563abdadb8cb74067eb7e4b6e
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
---

diff --git a/src/bin/lttng-sessiond/cmd.c b/src/bin/lttng-sessiond/cmd.c
index db07082db..53850f74a 100644
--- a/src/bin/lttng-sessiond/cmd.c
+++ b/src/bin/lttng-sessiond/cmd.c
@@ -4713,7 +4713,13 @@ enum lttng_error_code snapshot_record(struct ltt_session *session,
 		}
 	}
 
-	if (session_close_trace_chunk(session, session->current_trace_chunk,
+	if (session_set_trace_chunk(session, NULL, &snapshot_trace_chunk)) {
+		ERR("Failed to release the current trace chunk of session \"%s\"",
+				session->name);
+		ret_code = LTTNG_ERR_UNK;
+	}
+
+	if (session_close_trace_chunk(session, snapshot_trace_chunk,
 			LTTNG_TRACE_CHUNK_COMMAND_TYPE_NO_OPERATION, NULL)) {
 		/*
 		 * Don't goto end; make sure the chunk is closed for the session
@@ -4723,11 +4729,6 @@ enum lttng_error_code snapshot_record(struct ltt_session *session,
 				session->name);
 		ret_code = LTTNG_ERR_CLOSE_TRACE_CHUNK_FAIL_CONSUMER;
 	}
-	if (session_set_trace_chunk(session, NULL, NULL)) {
-		ERR("Failed to release the current trace chunk of session \"%s\"",
-				session->name);
-		ret_code = LTTNG_ERR_UNK;
-	}
 error:
 	if (original_ust_consumer_output) {
 		session->ust_session->consumer = original_ust_consumer_output;