Add listing session option

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

diff --git a/include/lttng/liblttngctl.h b/include/lttng/liblttngctl.h
index ed1f703b3308e1163d8ba60ec3a210fcdd1b68fe..ea6d001e1c58053d00575ecd1fab339c29c71cc7 100644 (file)
--- a/include/lttng/liblttngctl.h
+++ b/include/lttng/liblttngctl.h
@@ -19,18 +19,34 @@
 #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 */