Add ust start trace feature

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

diff --git a/liblttngctl/liblttngctl.c b/liblttngctl/liblttngctl.c
index a586b34f53a61d2ba6dd630204325d1f71a31835..64764682ba18f6fe124900c4283cf74d8f58aaee 100644 (file)
--- a/liblttngctl/liblttngctl.c
+++ b/liblttngctl/liblttngctl.c
@@ -167,6 +167,21 @@ const char *lttng_get_readable_code(int code)
        return lttcomm_get_readable_code(code);
 }
 
+/*
+ *  lttng_ust_start_trace
+ *
+ *  Request a trace start for pid.
+ */
+int lttng_ust_start_trace(pid_t pid)
+{
+       int ret;
+
+       lsm.pid = pid;
+       ret = ask_sessiond(UST_START_TRACE, NULL);
+
+       return ret;
+}
+
 /*
  *  lttng_ust_create_trace
  *