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authorZack Weinberg <zackw@panix.com>2017-06-08 15:39:03 -0400
committerZack Weinberg <zackw@panix.com>2017-06-08 15:39:03 -0400
commit5046dbb4a7eba5eccfd258f92f4735c9ffc8d069 (patch)
tree4470480d904b65cf14ca524f96f79eca818c3eaf /REORG.TODO/nptl/tst-rwlock14.c
parent199fc19d3aaaf57944ef036e15904febe877fc93 (diff)
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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-rwlock14.c')
-rw-r--r--REORG.TODO/nptl/tst-rwlock14.c168
1 files changed, 168 insertions, 0 deletions
diff --git a/REORG.TODO/nptl/tst-rwlock14.c b/REORG.TODO/nptl/tst-rwlock14.c
new file mode 100644
index 0000000000..763b529eea
--- /dev/null
+++ b/REORG.TODO/nptl/tst-rwlock14.c
@@ -0,0 +1,168 @@
+/* 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 <time.h>
+
+
+static pthread_barrier_t b;
+static pthread_rwlock_t r = PTHREAD_RWLOCK_INITIALIZER;
+
+
+static void *
+tf (void *arg)
+{
+ /* Lock the read-write lock. */
+ if (pthread_rwlock_wrlock (&r) != 0)
+ {
+ puts ("tf: cannot lock rwlock");
+ exit (EXIT_FAILURE);
+ }
+
+ pthread_t mt = *(pthread_t *) arg;
+
+ pthread_barrier_wait (&b);
+
+ /* This call will never return. */
+ pthread_join (mt, NULL);
+
+ return NULL;
+}
+
+
+static int
+do_test (void)
+{
+ int result = 0;
+ struct timespec ts;
+
+ if (clock_gettime (CLOCK_REALTIME, &ts) != 0)
+ {
+ puts ("clock_gettime failed");
+ return 1;
+ }
+
+ if (pthread_barrier_init (&b, NULL, 2) != 0)
+ {
+ puts ("barrier_init failed");
+ return 1;
+ }
+
+ pthread_t me = pthread_self ();
+ pthread_t th;
+ if (pthread_create (&th, NULL, tf, &me) != 0)
+ {
+ puts ("create failed");
+ return 1;
+ }
+
+ /* Wait until the rwlock is locked. */
+ pthread_barrier_wait (&b);
+
+ ts.tv_nsec = -1;
+
+ int e = pthread_rwlock_timedrdlock (&r, &ts);
+ if (e == 0)
+ {
+ puts ("first rwlock_timedrdlock did not fail");
+ result = 1;
+ }
+ else if (e != EINVAL)
+ {
+ puts ("first rwlock_timedrdlock did not return EINVAL");
+ result = 1;
+ }
+
+ e = pthread_rwlock_timedwrlock (&r, &ts);
+ if (e == 0)
+ {
+ puts ("first rwlock_timedwrlock did not fail");
+ result = 1;
+ }
+ else if (e != EINVAL)
+ {
+ puts ("first rwlock_timedwrlock did not return EINVAL");
+ result = 1;
+ }
+
+ ts.tv_nsec = 1000000000;
+
+ e = pthread_rwlock_timedrdlock (&r, &ts);
+ if (e == 0)
+ {
+ puts ("second rwlock_timedrdlock did not fail");
+ result = 1;
+ }
+ else if (e != EINVAL)
+ {
+ puts ("second rwlock_timedrdlock did not return EINVAL");
+ result = 1;
+ }
+
+ e = pthread_rwlock_timedrdlock (&r, &ts);
+ if (e == 0)
+ {
+ puts ("second rwlock_timedrdlock did not fail");
+ result = 1;
+ }
+ else if (e != EINVAL)
+ {
+ puts ("second rwlock_timedrdlock did not return EINVAL");
+ result = 1;
+ }
+
+ ts.tv_nsec = (__typeof (ts.tv_nsec)) 0x100001000LL;
+ if ((__typeof (ts.tv_nsec)) 0x100001000LL != 0x100001000LL)
+ ts.tv_nsec = 2000000000;
+
+ e = pthread_rwlock_timedrdlock (&r, &ts);
+ if (e == 0)
+ {
+ puts ("third rwlock_timedrdlock did not fail");
+ result = 1;
+ }
+ else if (e != EINVAL)
+ {
+ puts ("third rwlock_timedrdlock did not return EINVAL");
+ result = 1;
+ }
+
+ e = pthread_rwlock_timedrdlock (&r, &ts);
+ if (e == 0)
+ {
+ puts ("third rwlock_timedrdlock did not fail");
+ result = 1;
+ }
+ else if (e != EINVAL)
+ {
+ puts ("third rwlock_timedrdlock did not return EINVAL");
+ result = 1;
+ }
+
+ if (result == 0)
+ puts ("no bugs");
+
+ return result;
+}
+
+
+#define TEST_FUNCTION do_test ()
+#include "../test-skeleton.c"