From: Pierre-Marc Fournier <pierre-marc.fournier@polymtl.ca>
Date: Wed, 22 Jul 2009 21:48:12 +0000 (-0400)
Subject: add ust_fork()
X-Git-Tag: v0.1~171
X-Git-Url: http://git.lttng.org./?a=commitdiff_plain;h=1e2944cb1e15d658b5991026e5604c56f551e2ab;p=ust.git

add ust_fork()
---

diff --git a/libust/tracectl.c b/libust/tracectl.c
index 97ab2eb..9dfc8af 100644
--- a/libust/tracectl.c
+++ b/libust/tracectl.c
@@ -920,3 +920,24 @@ static void __attribute__((destructor)) fini()
 	destroy_socket();
 }
 #endif
+
+/* Notify ust that there was a fork. This needs to be called inside
+ * the new process, anytime a process whose memory is not shared with
+ * the parent is created. If this function is not called, the events
+ * of the new process will not be collected.
+ */
+
+void ust_fork(void)
+{
+	DBG("ust: forking");
+	ltt_trace_stop("auto");
+	ltt_trace_destroy("auto");
+	ltt_trace_alloc("auto");
+	ltt_trace_start("auto");
+	init_socket();
+	have_listener = 0;
+	create_listener();
+	ustcomm_request_consumer(getpid(), "metadata");
+	ustcomm_request_consumer(getpid(), "ust");
+}
+