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author | Andreas Schneider <asn@samba.org> | 2017-11-28 15:41:05 +0100 |
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committer | Andreas Schneider <asn@samba.org> | 2017-12-04 12:23:47 +0100 |
commit | 3f804113608f0c2f04a8212fbacf569b67dd0a19 (patch) | |
tree | b90a59dadb65e40420efd4b8e0d12424c098020d /tests/thread_deadlock.c | |
parent | 3547fdfc094f4588375cb7b1716461f8f328b643 (diff) | |
download | socket_wrapper-3f804113608f0c2f04a8212fbacf569b67dd0a19.tar.gz socket_wrapper-3f804113608f0c2f04a8212fbacf569b67dd0a19.tar.xz socket_wrapper-3f804113608f0c2f04a8212fbacf569b67dd0a19.zip |
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.c | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/tests/thread_deadlock.c b/tests/thread_deadlock.c new file mode 100644 index 0000000..b72367f --- /dev/null +++ b/tests/thread_deadlock.c @@ -0,0 +1,70 @@ +/* + * 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); +} |