Implement --shm-path option for UST sessions (per-uid channels)

[lttng-tools.git] / src / lib / lttng-ctl / lttng-ctl.c

diff --git a/src/lib/lttng-ctl/lttng-ctl.c b/src/lib/lttng-ctl/lttng-ctl.c
index f879d8ddfd2ea7b036df41a12d256809cee3a715..4332881c6eb7a41f538189a3dd3dcc41aed0ae30 100644 (file)
--- a/src/lib/lttng-ctl/lttng-ctl.c
+++ b/src/lib/lttng-ctl/lttng-ctl.c
@@ -1452,6 +1452,26 @@ int lttng_list_sessions(struct lttng_session **sessions)
        return ret / sizeof(struct lttng_session);
 }
 
+int lttng_set_session_shm_path(const char *session_name,
+               const char *shm_path)
+{
+       struct lttcomm_session_msg lsm;
+
+       if (session_name == NULL) {
+               return -LTTNG_ERR_INVALID;
+       }
+
+       memset(&lsm, 0, sizeof(lsm));
+       lsm.cmd_type = LTTNG_SET_SESSION_SHM_PATH;
+
+       lttng_ctl_copy_string(lsm.session.name, session_name,
+                       sizeof(lsm.session.name));
+       lttng_ctl_copy_string(lsm.u.set_shm_path.shm_path, shm_path,
+                       sizeof(lsm.u.set_shm_path.shm_path));
+
+       return lttng_ctl_ask_sessiond(&lsm, NULL);
+}
+
 /*
  *  Ask the session daemon for all available domains of a session.
  *  Sets the contents of the domains array.