Add create session feature

[lttng-tools.git] / liblttngctl / liblttngctl.c

diff --git a/liblttngctl/liblttngctl.c b/liblttngctl/liblttngctl.c
index fda45ae10d2bc423dea61b94f3a2521c5c074b0c..bd7dcb0c5b6f87cd146a8ceb2c5e064892a621ee 100644 (file)
--- a/liblttngctl/liblttngctl.c
+++ b/liblttngctl/liblttngctl.c
@@ -35,6 +35,7 @@ static char sessiond_sock_path[PATH_MAX];
 
 /* Communication structure to ltt-sessiond */
 static struct lttcomm_session_msg lsm;
+static struct lttcomm_lttng_msg llm;
 
 /* Prototypes */
 static int check_tracing_group(const char *grp_name);
@@ -109,7 +110,6 @@ static int ask_sessiond(enum lttcomm_command_type lct, void **buf)
        int ret;
        size_t size;
        void *data = NULL;
-       struct lttcomm_lttng_msg llm;
 
        lsm.cmd_type = lct;
 
@@ -188,6 +188,34 @@ int lttng_ust_list_apps(pid_t **pids)
        return ret / sizeof(pid_t);
 }
 
+/*
+ *  lttng_create_session
+ *
+ *  Create a brand new session using name. Allocate
+ *  the session_id param pointing to the UUID.
+ */
+int lttng_create_session(char *name, char **session_id)
+{
+       int ret;
+       char *uuid;
+
+       strncpy(lsm.session_name, name, sizeof(lsm.session_name));
+
+       ret = ask_sessiond(LTTNG_CREATE_SESSION, NULL);
+       if (ret < 0) {
+               goto end;
+       }
+
+       /* Allocate UUID string length */
+       uuid = malloc(UUID_STR_LEN);
+
+       strncpy(uuid, llm.session_id, UUID_STR_LEN);
+       *session_id = uuid;
+
+end:
+       return ret;
+}
+
 /*
  *  lttng_list_sessions
  *