X-Git-Url: http://git.efficios.com/?p=lttng-tools.git;a=blobdiff_plain;f=src%2Fbin%2Flttng-sessiond%2Fsession.h;h=8d41c38aa60c911174f37ba92909f1c7d4ab345b;hp=6a0da6c164f95a48b15a2e0250611d77a0dcf2ec;hb=54213acc35b30fa5e95dd275c31cfb584d4e4abf;hpb=f4cc5e83435948e64f5c7bce395ca19703da02a3

diff --git a/src/bin/lttng-sessiond/session.h b/src/bin/lttng-sessiond/session.h
index 6a0da6c16..8d41c38aa 100644
--- a/src/bin/lttng-sessiond/session.h
+++ b/src/bin/lttng-sessiond/session.h
@@ -114,11 +114,19 @@ struct ltt_session {
 	/* Indicate if the session has to output the traces or not. */
 	unsigned int output_traces;
 	/*
-	 * This session is in snapshot mode. This means that every channel enabled
-	 * will be set in overwrite mode and mmap. It is considered exclusively for
-	 * snapshot purposes.
+	 * This session is in snapshot mode. This means that channels enabled
+	 * will be set in overwrite mode by default and must be in mmap
+	 * output mode. Note that snapshots can be taken on a session that
+	 * is not in "snapshot_mode". This parameter only affects channel
+	 * creation defaults.
 	 */
 	unsigned int snapshot_mode;
+	/*
+	 * A session that has channels that don't use 'mmap' output can't be
+	 * used to capture snapshots. This is set to true whenever a
+	 * 'splice' kernel channel is enabled.
+	 */
+	bool has_non_mmap_channel;
 	/*
 	 * Timer set when the session is created for live reading.
 	 */