From 75accc3bc3c164ac6063c384c98f0dfa7d489dcc Mon Sep 17 00:00:00 2001 From: Austin Foxley Date: Sat, 17 Oct 2009 12:39:06 -0700 Subject: test/nptl/: tests for NPTL Signed-off-by: Austin Foxley --- test/nptl/tst-flock1.c | 93 ++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 93 insertions(+) create mode 100644 test/nptl/tst-flock1.c (limited to 'test/nptl/tst-flock1.c') diff --git a/test/nptl/tst-flock1.c b/test/nptl/tst-flock1.c new file mode 100644 index 000000000..ed2472d3a --- /dev/null +++ b/test/nptl/tst-flock1.c @@ -0,0 +1,93 @@ +/* Copyright (C) 2002 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Ulrich Drepper , 2002. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include +#include +#include +#include +#include + + +static pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER; + +static int fd; + + +static void * +tf (void *arg) +{ + if (flock (fd, LOCK_SH | LOCK_NB) != 0) + { + puts ("second flock failed"); + exit (1); + } + + pthread_mutex_unlock (&lock); + + return NULL; +} + + +static int +do_test (void) +{ + char tmp[] = "/tmp/tst-flock1-XXXXXX"; + + fd = mkstemp (tmp); + if (fd == -1) + { + puts ("mkstemp failed"); + exit (1); + } + + unlink (tmp); + + write (fd, "foobar xyzzy", 12); + + if (flock (fd, LOCK_EX | LOCK_NB) != 0) + { + puts ("first flock failed"); + exit (1); + } + + pthread_mutex_lock (&lock); + + pthread_t th; + if (pthread_create (&th, NULL, tf, NULL) != 0) + { + puts ("pthread_create failed"); + exit (1); + } + + pthread_mutex_lock (&lock); + + void *result; + if (pthread_join (th, &result) != 0) + { + puts ("pthread_join failed"); + exit (1); + } + + close (fd); + + return result != NULL; +} + +#define TEST_FUNCTION do_test () +#include "../test-skeleton.c" -- cgit v1.2.3