actions: introduce start session action

[lttng-tools.git] / include / lttng / action / start-session-internal.h

diff --git a/include/lttng/action/start-session-internal.h b/include/lttng/action/start-session-internal.h
new file mode 100644 (file)
index 0000000..7f60103
--- /dev/null
+++ b/include/lttng/action/start-session-internal.h
@@ -0,0 +1,29 @@
+/*
+ * Copyright (C) 2019 Simon Marchi <simon.marchi@efficios.com>
+ *
+ * SPDX-License-Identifier: LGPL-2.1-only
+ *
+ */
+
+#ifndef LTTNG_ACTION_START_SESSION_INTERNAL_H
+#define LTTNG_ACTION_START_SESSION_INTERNAL_H
+
+#include <sys/types.h>
+
+#include <common/macros.h>
+
+struct lttng_action;
+struct lttng_buffer_view;
+
+/*
+ * Create a "start session" action from a buffer view.
+ *
+ * On success, return the number of bytes consumed from `view`, and the created
+ * action in `*action`. On failure, return -1.
+ */
+LTTNG_HIDDEN
+extern ssize_t lttng_action_start_session_create_from_buffer(
+               const struct lttng_buffer_view *view,
+               struct lttng_action **action);
+
+#endif /* LTTNG_ACTION_START_SESSION_INTERNAL_H */