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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-cond7.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-cond7.c')
-rw-r--r-- | REORG.TODO/nptl/tst-cond7.c | 167 |
1 files changed, 167 insertions, 0 deletions
diff --git a/REORG.TODO/nptl/tst-cond7.c b/REORG.TODO/nptl/tst-cond7.c new file mode 100644 index 0000000000..566141758d --- /dev/null +++ b/REORG.TODO/nptl/tst-cond7.c @@ -0,0 +1,167 @@ +/* Copyright (C) 2003-2017 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Jakub Jelinek <jakub@redhat.com>, 2003. + + 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 <stdbool.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <time.h> +#include <sys/time.h> + + +typedef struct + { + pthread_cond_t cond; + pthread_mutex_t lock; + pthread_t h; + } T; + + +static volatile bool done; + + +static void * +tf (void *arg) +{ + puts ("child created"); + + if (pthread_setcancelstate (PTHREAD_CANCEL_ENABLE, NULL) != 0 + || pthread_setcanceltype (PTHREAD_CANCEL_DEFERRED, NULL) != 0) + { + puts ("cannot set cancellation options"); + exit (1); + } + + T *t = (T *) arg; + + if (pthread_mutex_lock (&t->lock) != 0) + { + puts ("child: lock failed"); + exit (1); + } + + done = true; + + if (pthread_cond_signal (&t->cond) != 0) + { + puts ("child: cond_signal failed"); + exit (1); + } + + if (pthread_cond_wait (&t->cond, &t->lock) != 0) + { + puts ("child: cond_wait failed"); + exit (1); + } + + if (pthread_mutex_unlock (&t->lock) != 0) + { + puts ("child: unlock failed"); + exit (1); + } + + return NULL; +} + + +static int +do_test (void) +{ + int i; +#define N 100 + T *t[N]; + for (i = 0; i < N; ++i) + { + printf ("round %d\n", i); + + t[i] = (T *) malloc (sizeof (T)); + if (t[i] == NULL) + { + puts ("out of memory"); + exit (1); + } + + if (pthread_mutex_init (&t[i]->lock, NULL) != 0 + || pthread_cond_init (&t[i]->cond, NULL) != 0) + { + puts ("an _init function failed"); + exit (1); + } + + if (pthread_mutex_lock (&t[i]->lock) != 0) + { + puts ("initial mutex_lock failed"); + exit (1); + } + + done = false; + + if (pthread_create (&t[i]->h, NULL, tf, t[i]) != 0) + { + puts ("pthread_create failed"); + exit (1); + } + + do + if (pthread_cond_wait (&t[i]->cond, &t[i]->lock) != 0) + { + puts ("cond_wait failed"); + exit (1); + } + while (! done); + + /* Release the lock since the cancel handler will get it. */ + if (pthread_mutex_unlock (&t[i]->lock) != 0) + { + puts ("mutex_unlock failed"); + exit (1); + } + + if (pthread_cancel (t[i]->h) != 0) + { + puts ("cancel failed"); + exit (1); + } + + puts ("parent: joining now"); + + void *result; + if (pthread_join (t[i]->h, &result) != 0) + { + puts ("join failed"); + exit (1); + } + + if (result != PTHREAD_CANCELED) + { + puts ("result != PTHREAD_CANCELED"); + exit (1); + } + } + + for (i = 0; i < N; ++i) + free (t[i]); + + return 0; +} + + +#define TEST_FUNCTION do_test () +#include "../test-skeleton.c" |