From: Pierre-Marc Fournier <pierre-marc.fournier@polymtl.ca>
Date: Tue, 13 Oct 2009 21:20:07 +0000 (-0400)
Subject: improve create_listener()
X-Git-Tag: v1.9.1~866
X-Git-Url: https://git.lttng.org./?a=commitdiff_plain;h=c5fdc88852bc232e24fb3941ea5d5719b4490a87;p=lttng-ust.git

improve create_listener()
---

diff --git a/libust/tracectl.c b/libust/tracectl.c
index dbd39657..2d4341d3 100644
--- a/libust/tracectl.c
+++ b/libust/tracectl.c
@@ -774,15 +774,18 @@ void create_listener(void)
 {
 #ifdef USE_CLONE
 	static char listener_stack[16384];
+	int result;
 #else
 	pthread_t thread;
 #endif
 
-	if(have_listener)
+	if(have_listener) {
+		WARN("not creating listener because we already had one");
 		return;
+	}
 
 #ifdef USE_CLONE
-	result = clone(listener_main, listener_stack+sizeof(listener_stack)-1, CLONE_FS | CLONE_FILES | CLONE_VM | CLONE_SIGHAND | CLONE_THREAD, NULL);
+	result = clone((int (*)(void *)) listener_main, listener_stack+sizeof(listener_stack)-1, CLONE_FS | CLONE_FILES | CLONE_VM | CLONE_SIGHAND | CLONE_THREAD, NULL);
 	if(result == -1) {
 		perror("clone");
 		return;