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authorAndreas Schneider <asn@samba.org>2017-11-28 15:41:05 +0100
committerAndreas Schneider <asn@samba.org>2017-12-04 12:23:47 +0100
commit3f804113608f0c2f04a8212fbacf569b67dd0a19 (patch)
treeb90a59dadb65e40420efd4b8e0d12424c098020d /tests/thread_deadlock.c
parent3547fdfc094f4588375cb7b1716461f8f328b643 (diff)
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tests: Add a thread deadlock reproducer
Signed-off-by: Andreas Schneider <asn@samba.org> Reviewed-by: Stefan Metzmacher <metze@samba.org>
Diffstat (limited to 'tests/thread_deadlock.c')
-rw-r--r--tests/thread_deadlock.c70
1 files changed, 70 insertions, 0 deletions
diff --git a/tests/thread_deadlock.c b/tests/thread_deadlock.c
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+/*
+ * Copyright (C) 2017 Andreas Schneider <asn@samba.org>
+ *
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * 3. Neither the name of the author nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ */
+
+#include "config.h"
+
+#include <stdio.h>
+#include <signal.h>
+#include <pthread.h>
+
+#ifdef HAVE_CONSTRUCTOR_ATTRIBUTE
+#define CONSTRUCTOR_ATTRIBUTE __attribute__ ((constructor))
+#else
+#define CONSTRUCTOR_ATTRIBUTE
+#endif /* HAVE_CONSTRUCTOR_ATTRIBUTE */
+
+void thread_deadlock_constructor(void) CONSTRUCTOR_ATTRIBUTE;
+
+static void thread_deadlock_prepare(void)
+{
+ pthread_kill(pthread_self(), SIGUSR1);
+ return;
+}
+
+static void thread_deadlock_parent(void)
+{
+ return;
+}
+
+static void thread_deadlock_child(void)
+{
+ return;
+}
+
+void thread_deadlock_constructor(void)
+{
+ pthread_atfork(&thread_deadlock_prepare,
+ &thread_deadlock_parent,
+ &thread_deadlock_child);
+}