X-Git-Url: https://git.lttng.org/?p=lttng-tools.git;a=blobdiff_plain;f=src%2Fcommon%2Ftrace-chunk-registry.h;h=00dd7fcf0343ebd8a38aa50f8189fdb91bdb55eb;hp=23df91a3eca24a13ac64b0eb3a0a5d9b983d5ebf;hb=4062406e2a957323852dca73a41e0239f6b9df03;hpb=e10aec8f225c0822811c65401710a039d7e2d7d7

diff --git a/src/common/trace-chunk-registry.h b/src/common/trace-chunk-registry.h
index 23df91a3e..00dd7fcf0 100644
--- a/src/common/trace-chunk-registry.h
+++ b/src/common/trace-chunk-registry.h
@@ -1,18 +1,8 @@
 /*
- * Copyright (C) 2019 - Jérémie Galarneau <jeremie.galarneau@efficios.com>
+ * Copyright (C) 2019 Jérémie Galarneau <jeremie.galarneau@efficios.com>
  *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU Lesser General Public License, version 2.1 only,
- * as published by the Free Software Foundation.
+ * SPDX-License-Identifier: LGPL-2.1-only
  *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
- * for more details.
- *
- * You should have received a copy of the GNU Lesser General Public License
- * along with this program; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
 #ifndef LTTNG_TRACE_CHUNK_REGISTRY_H
@@ -83,6 +73,16 @@ lttng_trace_chunk_registry_find_chunk(
 		const struct lttng_trace_chunk_registry *registry,
 		uint64_t session_id, uint64_t chunk_id);
 
+/*
+ * Query the existence of a trace chunk by session_id and chunk_id.
+ *
+ * Returns 0 on success, a negative value on error.
+ */
+LTTNG_HIDDEN
+int lttng_trace_chunk_registry_chunk_exists(
+		const struct lttng_trace_chunk_registry *registry,
+		uint64_t session_id, uint64_t chunk_id, bool *chunk_exists);
+
 /*
  * Look-up an anonymous trace chunk by session_id.
  * A reference is acquired on behalf of the caller.
@@ -97,6 +97,6 @@ lttng_trace_chunk_registry_find_anonymous_chunk(
 
 LTTNG_HIDDEN
 unsigned int lttng_trace_chunk_registry_put_each_chunk(
-		struct lttng_trace_chunk_registry *registry);
+		const struct lttng_trace_chunk_registry *registry);
 
 #endif /* LTTNG_TRACE_CHUNK_REGISTRY_H */