Add ust create trace feature

[lttng-tools.git] / ltt-sessiond / ltt-sessiond.c

diff --git a/ltt-sessiond/ltt-sessiond.c b/ltt-sessiond/ltt-sessiond.c
index 3590d7e444c685147cf74c3a2ece2e1de2831367..6df78d8e3c40cb88d11301d66be4878aabd77fcf 100644 (file)
--- a/ltt-sessiond/ltt-sessiond.c
+++ b/ltt-sessiond/ltt-sessiond.c
@@ -217,7 +217,7 @@ static void *thread_manage_clients(void *data)
                 * request of the client.
                 */
                ret = lttcomm_recv_unix_sock(sock, &lsm, sizeof(lsm));
-               if (ret < 0) {
+               if (ret <= 0) {
                        continue;
                }
 
@@ -587,6 +587,20 @@ static int process_client_msg(int sock, struct lttcomm_session_msg *lsm)
                        /* No auxiliary data so only send the llm struct. */
                        goto end;
                }
+               case UST_CREATE_TRACE:
+               {
+                       int sock;
+                       sock = connect_app(lsm->pid);
+
+                       ret = ustctl_create_trace(sock, "auto");
+                       if (ret < 0) {
+                               ret = LTTCOMM_CREATE_FAIL;
+                       } else {
+                               ret = LTTCOMM_OK;
+                       }
+
+                       goto end;
+               }
                case UST_LIST_APPS:
                {
                        /* Stop right now if no apps */
@@ -897,6 +911,7 @@ static void sighandler(int sig)
 {
        switch (sig) {
                case SIGPIPE:
+                       return;
                case SIGINT:
                case SIGTERM:
                        cleanup();