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author | Zack Weinberg <zackw@panix.com> | 2017-06-08 15:39:03 -0400 |
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committer | Zack Weinberg <zackw@panix.com> | 2017-06-08 15:39:03 -0400 |
commit | 5046dbb4a7eba5eccfd258f92f4735c9ffc8d069 (patch) | |
tree | 4470480d904b65cf14ca524f96f79eca818c3eaf /REORG.TODO/nptl/tst-cond15.c | |
parent | 199fc19d3aaaf57944ef036e15904febe877fc93 (diff) | |
download | glibc-5046dbb4a7eba5eccfd258f92f4735c9ffc8d069.tar.gz glibc-5046dbb4a7eba5eccfd258f92f4735c9ffc8d069.tar.xz glibc-5046dbb4a7eba5eccfd258f92f4735c9ffc8d069.zip |
Prepare for radical source tree reorganization. zack/build-layout-experiment
All top-level files and directories are moved into a temporary storage directory, REORG.TODO, except for files that will certainly still exist in their current form at top level when we're done (COPYING, COPYING.LIB, LICENSES, NEWS, README), all old ChangeLog files (which are moved to the new directory OldChangeLogs, instead), and the generated file INSTALL (which is just deleted; in the new order, there will be no generated files checked into version control).
Diffstat (limited to 'REORG.TODO/nptl/tst-cond15.c')
-rw-r--r-- | REORG.TODO/nptl/tst-cond15.c | 159 |
1 files changed, 159 insertions, 0 deletions
diff --git a/REORG.TODO/nptl/tst-cond15.c b/REORG.TODO/nptl/tst-cond15.c new file mode 100644 index 0000000000..b41bd6926a --- /dev/null +++ b/REORG.TODO/nptl/tst-cond15.c @@ -0,0 +1,159 @@ +/* Copyright (C) 2004-2017 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Ulrich Drepper <drepper@redhat.com>, 2004. + + 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 <errno.h> +#include <pthread.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> +#include <sys/time.h> + + +static pthread_cond_t cond = PTHREAD_COND_INITIALIZER; +static pthread_mutex_t mut = PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP; +static pthread_mutex_t mut2 = PTHREAD_MUTEX_INITIALIZER; + +static void * +tf (void *p) +{ + if (pthread_mutex_lock (&mut) != 0) + { + printf ("%s: 1st mutex_lock failed\n", __func__); + exit (1); + } + if (pthread_mutex_lock (&mut) != 0) + { + printf ("%s: 2nd mutex_lock failed\n", __func__); + exit (1); + } + if (pthread_mutex_lock (&mut) != 0) + { + printf ("%s: 3rd mutex_lock failed\n", __func__); + exit (1); + } + + if (pthread_mutex_unlock (&mut2) != 0) + { + printf ("%s: mutex_unlock failed\n", __func__); + exit (1); + } + + struct timeval tv; + gettimeofday (&tv, NULL); + struct timespec ts; + TIMEVAL_TO_TIMESPEC (&tv, &ts); + ts.tv_sec += p == NULL ? 100 : 1; + + int err = pthread_cond_timedwait (&cond, &mut, &ts); + if ((err != 0 && p == NULL) || (err != ETIMEDOUT && p != NULL)) + { + printf ("%s: cond_wait failed\n", __func__); + exit (1); + } + + if (pthread_mutex_unlock (&mut) != 0) + { + printf ("%s: 1st mutex_unlock failed\n", __func__); + exit (1); + } + if (pthread_mutex_unlock (&mut) != 0) + { + printf ("%s: 2nd mutex_unlock failed\n", __func__); + exit (1); + } + if (pthread_mutex_unlock (&mut) != 0) + { + printf ("%s: 3rd mutex_unlock failed\n", __func__); + exit (1); + } + + puts ("child: done"); + + return NULL; +} + + +static int +do_test (void) +{ + if (pthread_mutex_lock (&mut2) != 0) + { + puts ("1st mutex_lock failed"); + return 1; + } + + puts ("parent: create 1st child"); + + pthread_t th; + int err = pthread_create (&th, NULL, tf, NULL); + if (err != 0) + { + printf ("parent: cannot 1st create thread: %s\n", strerror (err)); + return 1; + } + + /* We have to synchronize with the child. */ + if (pthread_mutex_lock (&mut2) != 0) + { + puts ("2nd mutex_lock failed"); + return 1; + } + + /* Give the child to reach to pthread_cond_wait. */ + sleep (1); + + if (pthread_cond_signal (&cond) != 0) + { + puts ("cond_signal failed"); + return 1; + } + + err = pthread_join (th, NULL); + if (err != 0) + { + printf ("parent: failed to join: %s\n", strerror (err)); + return 1; + } + + + puts ("parent: create 2nd child"); + + err = pthread_create (&th, NULL, tf, (void *) 1l); + if (err != 0) + { + printf ("parent: cannot 2nd create thread: %s\n", strerror (err)); + return 1; + } + + err = pthread_join (th, NULL); + if (err != 0) + { + printf ("parent: failed to join: %s\n", strerror (err)); + return 1; + } + + puts ("done"); + + return 0; +} + + +#define TEST_FUNCTION do_test () +#define TIMEOUT 6 +#include "../test-skeleton.c" |