Rename C++ header files to .hpp

[lttng-tools.git] / src / bin / lttng-relayd / ctf-trace.hpp

diff --git a/src/bin/lttng-relayd/ctf-trace.hpp b/src/bin/lttng-relayd/ctf-trace.hpp
new file mode 100644 (file)
index 0000000..dbf7d3f
--- /dev/null
+++ b/src/bin/lttng-relayd/ctf-trace.hpp
@@ -0,0 +1,67 @@
+#ifndef _CTF_TRACE_H
+#define _CTF_TRACE_H
+
+/*
+ * Copyright (C) 2013 Julien Desfossez <jdesfossez@efficios.com>
+ * Copyright (C) 2013 David Goulet <dgoulet@efficios.com>
+ * Copyright (C) 2015 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0-only
+ *
+ */
+
+#include <inttypes.h>
+#include <urcu/ref.h>
+
+#include <common/hashtable/hashtable.hpp>
+
+#include "session.hpp"
+#include "stream.hpp"
+#include "viewer-stream.hpp"
+
+struct ctf_trace {
+       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;
+       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;
+};
+
+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 */