From: Michael Greene <michael.greene@gmail.com>
Date: Thu, 16 Aug 2012 20:42:02 +0000 (-0400)
Subject: Fix: threads should be created in DETACHED state
X-Git-Tag: v2.1.0-rc1~11
X-Git-Url: https://git.lttng.org./?a=commitdiff_plain;h=1879f67f1532fe1644a0657a5d52f063b43c0bf4;p=lttng-ust.git

Fix: threads should be created in DETACHED state

Signed-off-by: Michael Greene <michael.greene@gmail.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
---

diff --git a/liblttng-ust/lttng-ust-comm.c b/liblttng-ust/lttng-ust-comm.c
index cca5dcf8..842876fb 100644
--- a/liblttng-ust/lttng-ust-comm.c
+++ b/liblttng-ust/lttng-ust-comm.c
@@ -928,6 +928,7 @@ void __attribute__((constructor)) lttng_ust_init(void)
 {
 	struct timespec constructor_timeout;
 	sigset_t sig_all_blocked, orig_parent_mask;
+	pthread_attr_t thread_attr;
 	int timeout_mode;
 	int ret;
 
@@ -977,13 +978,22 @@ void __attribute__((constructor)) lttng_ust_init(void)
 		ERR("pthread_sigmask: %s", strerror(ret));
 	}
 
-	ret = pthread_create(&global_apps.ust_listener, NULL,
+	ret = pthread_attr_init(&thread_attr);
+	if (ret) {
+		ERR("pthread_attr_init: %s", strerror(ret));
+	}
+	ret = pthread_attr_setdetachstate(&thread_attr, PTHREAD_CREATE_DETACHED);
+	if (ret) {
+		ERR("pthread_attr_setdetachstate: %s", strerror(ret));
+	}
+
+	ret = pthread_create(&global_apps.ust_listener, &thread_attr,
 			ust_listener_thread, &global_apps);
 	if (ret) {
 		ERR("pthread_create global: %s", strerror(ret));
 	}
 	if (local_apps.allowed) {
-		ret = pthread_create(&local_apps.ust_listener, NULL,
+		ret = pthread_create(&local_apps.ust_listener, &thread_attr,
 				ust_listener_thread, &local_apps);
 		if (ret) {
 			ERR("pthread_create local: %s", strerror(ret));
@@ -991,6 +1001,10 @@ void __attribute__((constructor)) lttng_ust_init(void)
 	} else {
 		handle_register_done(&local_apps);
 	}
+	ret = pthread_attr_destroy(&thread_attr);
+	if (ret) {
+		ERR("pthread_attr_destroy: %s", strerror(ret));
+	}
 
 	/* Restore original signal mask in parent */
 	ret = pthread_sigmask(SIG_SETMASK, &orig_parent_mask, NULL);