Add listing session option

[lttng-tools.git] / include / lttng / liblttngctl.h

diff --git a/include/lttng/liblttngctl.h b/include/lttng/liblttngctl.h
index cfe0cb59e3cde30a744ece501b1a53a2634ce8cc..ea6d001e1c58053d00575ecd1fab339c29c71cc7 100644 (file)
--- a/include/lttng/liblttngctl.h
+++ b/include/lttng/liblttngctl.h
@@ -1,4 +1,5 @@
-/* Copyright (C) 2011 - David Goulet <david.goulet@polymtl.ca>
+/*
+ * Copyright (C) 2011 - David Goulet <david.goulet@polymtl.ca>
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License
@@ -13,24 +14,39 @@
  * 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., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
- * 
  */
 
 #ifndef _LIBLTTNGCTL_H
 #define _LIBLTTNGCTL_H
 
+#include <limits.h>
+
+/* Default unix group name for tracing.
+ */
 #define DEFAULT_TRACING_GROUP "tracing"
 
-/* 
- * From libuuid
+/* Environment variable to set session daemon
+ * binary path.
+ */
+#define LTTNG_SESSIOND_PATH_ENV "LTTNG_SESSIOND_PATH"
+
+/* From libuuid
  */
 #define UUID_STR_LEN 37
 
+/* Simple structure representing a session.
+ */
+struct lttng_session {
+       char name[NAME_MAX];
+       char uuid[UUID_STR_LEN];
+};
+
 extern int lttng_create_session(const char *name, char *session_id);
 extern int lttng_connect_sessiond(void);
 extern int lttng_set_tracing_group(const char *name);
 extern int lttng_check_session_daemon(void);
 extern const char *lttng_get_readable_code(int code);
 extern size_t lttng_ust_list_apps(pid_t **pids);
+extern size_t lttng_list_sessions(struct lttng_session **sessions);
 
 #endif /* _LIBLTTNGCTL_H */