diff options
Diffstat (limited to 'nptl/tst-sem1.c')
-rw-r--r-- | nptl/tst-sem1.c | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/nptl/tst-sem1.c b/nptl/tst-sem1.c new file mode 100644 index 0000000..32d59eb --- /dev/null +++ b/nptl/tst-sem1.c @@ -0,0 +1,89 @@ +/* Copyright (C) 2002 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Ulrich Drepper <drepper@redhat.com>, 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 <errno.h> +#include <semaphore.h> +#include <stdio.h> +#include <unistd.h> + + +static int +do_test (void) +{ + sem_t s; + + if (sem_init (&s, 0, 1) == -1) + { + puts ("init failed"); + return 1; + } + + if (TEMP_FAILURE_RETRY (sem_wait (&s)) == -1) + { + puts ("1st wait failed"); + return 1; + } + + if (sem_post (&s) == -1) + { + puts ("1st post failed"); + return 1; + } + + if (TEMP_FAILURE_RETRY (sem_trywait (&s)) == -1) + { + puts ("1st trywait failed"); + return 1; + } + + errno = 0; + if (TEMP_FAILURE_RETRY (sem_trywait (&s)) != -1) + { + puts ("2nd trywait succeeded"); + return 1; + } + else if (errno != EAGAIN) + { + puts ("2nd trywait did not set errno to EAGAIN"); + return 1; + } + + if (sem_post (&s) == -1) + { + puts ("2nd post failed"); + return 1; + } + + if (TEMP_FAILURE_RETRY (sem_wait (&s)) == -1) + { + puts ("2nd wait failed"); + return 1; + } + + if (sem_destroy (&s) == -1) + { + puts ("destroy failed"); + return 1; + } + + return 0; +} + +#define TEST_FUNCTION do_test () +#include "../test-skeleton.c" |