X-Git-Url: https://git.lttng.org/?p=lttng-tools.git;a=blobdiff_plain;f=src%2Fbin%2Flttng-relayd%2Fctf-trace.h;h=a448b19cefa0cbc923aeea3e8e94630fed11c1d6;hp=66f7a15684b03d7ec0063f1702462bdf3cc03261;hb=aa91fbc56d63f8d75661a68b68f4052d3c0dba45;hpb=157df58664846e22bdeea84dfcf717cb43360b3f

diff --git a/src/bin/lttng-relayd/ctf-trace.h b/src/bin/lttng-relayd/ctf-trace.h
index 66f7a1568..a448b19ce 100644
--- a/src/bin/lttng-relayd/ctf-trace.h
+++ b/src/bin/lttng-relayd/ctf-trace.h
@@ -1,6 +1,10 @@
+#ifndef _CTF_TRACE_H
+#define _CTF_TRACE_H
+
 /*
  * Copyright (C) 2013 - Julien Desfossez <jdesfossez@efficios.com>
  *                      David Goulet <dgoulet@efficios.com>
+ *               2015 - Mathieu Desnoyers <mathieu.desnoyers@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
@@ -16,26 +20,58 @@
  * Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
-#ifndef _CTF_TRACE_H
-#define _CTF_TRACE_H
-
 #include <inttypes.h>
+#include <urcu/ref.h>
 
 #include <common/hashtable/hashtable.h>
 
-#include "lttng-relayd.h"
+#include "session.h"
+#include "stream.h"
+#include "viewer-stream.h"
 
 struct ctf_trace {
-	int refcount;
+	struct urcu_ref ref;		/* Every stream has a ref on the trace. */
+	struct relay_session *session;	/* Back ref to trace session */
+
+	/* Trace sub-folder relative to the session output path. */
+	char *path;
+
+	/*
+	 * The ctf_trace lock nests inside the session lock.
+	 */
+	pthread_mutex_t lock;
 	uint64_t id;
-	uint64_t metadata_received;
-	uint64_t metadata_sent;
-	struct relay_stream *metadata_stream;
-	struct relay_viewer_stream *viewer_metadata_stream;
+	struct relay_viewer_stream *viewer_metadata_stream;	/* RCU protected */
+
+	/*
+	 * Relay streams associated with this ctf trace.
+	 * Updates are protected by the stream_list lock.
+	 * Traversals are protected by RCU.
+	 */
+	struct cds_list_head stream_list;
+	pthread_mutex_t stream_list_lock;
+
+	/*
+	 * Node within session trace hash table. Node is indexed by
+	 * stream path name.
+	 */
+	struct lttng_ht_node_str node;
+	struct rcu_head rcu_node;	/* For call_rcu teardown. */
+
+	/*
+	 * True if the metadata stream of this trace was sent the viewer in the
+	 * past.
+	 */
+	bool metadata_stream_sent_to_viewer;
 };
 
-void ctf_trace_assign(struct lttng_ht *ht, struct relay_stream *stream);
-struct ctf_trace *ctf_trace_create(void);
-void ctf_trace_try_destroy(struct ctf_trace *obj);
+struct ctf_trace *ctf_trace_get_by_path_or_create(struct relay_session *session,
+		const char *subpath);
+bool ctf_trace_get(struct ctf_trace *trace);
+void ctf_trace_put(struct ctf_trace *trace);
+
+int ctf_trace_close(struct ctf_trace *trace);
+
+struct relay_viewer_stream *ctf_trace_get_viewer_metadata_stream(struct ctf_trace *trace);
 
 #endif /* _CTF_TRACE_H */