diff options
Diffstat (limited to 'REORG.TODO/nptl/tst-cond1.c')
-rw-r--r-- | REORG.TODO/nptl/tst-cond1.c | 96 |
1 files changed, 96 insertions, 0 deletions
diff --git a/REORG.TODO/nptl/tst-cond1.c b/REORG.TODO/nptl/tst-cond1.c new file mode 100644 index 0000000000..790eaea377 --- /dev/null +++ b/REORG.TODO/nptl/tst-cond1.c @@ -0,0 +1,96 @@ +/* Copyright (C) 2002-2017 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, see + <http://www.gnu.org/licenses/>. */ + +#include <error.h> +#include <pthread.h> +#include <stdio.h> +#include <stdlib.h> + + +static pthread_cond_t cond = PTHREAD_COND_INITIALIZER; +static pthread_mutex_t mut = PTHREAD_MUTEX_INITIALIZER; + + +static void * +tf (void *p) +{ + int err; + + err = pthread_mutex_lock (&mut); + if (err != 0) + error (EXIT_FAILURE, err, "child: cannot get mutex"); + + puts ("child: got mutex; signalling"); + + pthread_cond_signal (&cond); + + puts ("child: unlock"); + + err = pthread_mutex_unlock (&mut); + if (err != 0) + error (EXIT_FAILURE, err, "child: cannot unlock"); + + puts ("child: done"); + + return NULL; +} + + +static int +do_test (void) +{ + pthread_t th; + int err; + + printf ("&cond = %p\n&mut = %p\n", &cond, &mut); + + puts ("parent: get mutex"); + + err = pthread_mutex_lock (&mut); + if (err != 0) + error (EXIT_FAILURE, err, "parent: cannot get mutex"); + + puts ("parent: create child"); + + err = pthread_create (&th, NULL, tf, NULL); + if (err != 0) + error (EXIT_FAILURE, err, "parent: cannot create thread"); + + puts ("parent: wait for condition"); + + /* This test will fail on spurious wake-ups, which are allowed; however, + the current implementation shouldn't produce spurious wake-ups in the + scenario we are testing here. */ + err = pthread_cond_wait (&cond, &mut); + if (err != 0) + error (EXIT_FAILURE, err, "parent: cannot wait fir signal"); + + puts ("parent: got signal"); + + err = pthread_join (th, NULL); + if (err != 0) + error (EXIT_FAILURE, err, "parent: failed to join"); + + puts ("done"); + + return 0; +} + + +#define TEST_FUNCTION do_test () +#include "../test-skeleton.c" |