X-Git-Url: https://git.lttng.org/?p=lttng-tools.git;a=blobdiff_plain;f=src%2Fcommon%2Fconsumer%2Fconsumer-stream.h;h=cb1dafe3951a4a004cfc2b03864f11471de7d130;hp=44a5b0fc1efa42505c03af8054b12212c86687e6;hb=e2d1190b9ea09c54e5d7373643d62e2034bc1531;hpb=c35f9726a22f1d93e14589688d830efccda196f3

diff --git a/src/common/consumer/consumer-stream.h b/src/common/consumer/consumer-stream.h
index 44a5b0fc1..cb1dafe39 100644
--- a/src/common/consumer/consumer-stream.h
+++ b/src/common/consumer/consumer-stream.h
@@ -1,18 +1,8 @@
 /*
- * Copyright (C) 2013 - David Goulet <dgoulet@efficios.com>
+ * Copyright (C) 2013 David Goulet <dgoulet@efficios.com>
  *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License, version 2 only, as
- * published by the Free Software Foundation.
+ * SPDX-License-Identifier: GPL-2.0-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 General Public License for
- * more details.
- *
- * You should have received a copy of the GNU 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_CONSUMER_STREAM_H
@@ -20,6 +10,24 @@
 
 #include "consumer.h"
 
+/*
+ * Create a consumer stream.
+ *
+ * The channel lock MUST be acquired.
+ */
+struct lttng_consumer_stream *consumer_stream_create(
+		struct lttng_consumer_channel *channel,
+		uint64_t channel_key,
+		uint64_t stream_key,
+		const char *channel_name,
+		uint64_t relayd_id,
+		uint64_t session_id,
+		struct lttng_trace_chunk *trace_chunk,
+		int cpu,
+		int *alloc_ret,
+		enum consumer_channel_type type,
+		unsigned int monitor);
+
 /*
  * Close stream's file descriptors and, if needed, close stream also on the
  * relayd side.
@@ -94,4 +102,22 @@ int consumer_stream_create_output_files(struct lttng_consumer_stream *stream,
  */
 int consumer_stream_rotate_output_files(struct lttng_consumer_stream *stream);
 
+/*
+ * Indicates whether or not a stream is logically deleted. A deleted stream
+ * should no longer be used; its existence is only garanteed by the RCU lock
+ * held by the caller.
+ *
+ * This function must be called with the RCU read side lock held.
+ */
+bool consumer_stream_is_deleted(struct lttng_consumer_stream *stream);
+
+/*
+ * Enable metadata bucketization. This must only be enabled if the tracer
+ * provides a reliable metadata `coherent` flag.
+ *
+ * This must be called on initialization before any subbuffer is consumed.
+ */
+int consumer_stream_enable_metadata_bucketization(
+		struct lttng_consumer_stream *stream);
+
 #endif /* LTTNG_CONSUMER_STREAM_H */