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-rw-r--r--sysdeps/pthread/tst-cond25.c288
1 files changed, 288 insertions, 0 deletions
diff --git a/sysdeps/pthread/tst-cond25.c b/sysdeps/pthread/tst-cond25.c
new file mode 100644
index 0000000000..72954f893c
--- /dev/null
+++ b/sysdeps/pthread/tst-cond25.c
@@ -0,0 +1,288 @@
+/* Verify that condition variables synchronized by PI mutexes don't hang on
+ on cancellation.
+ Copyright (C) 2012-2020 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ 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
+ <https://www.gnu.org/licenses/>. */
+
+#include <pthread.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <string.h>
+#include <errno.h>
+#include <sys/types.h>
+#include <sys/syscall.h>
+#include <unistd.h>
+#include <sys/time.h>
+#include <time.h>
+
+#define NUM 5
+#define ITERS 10000
+#define COUNT 100
+
+typedef void *(*thr_func) (void *);
+
+pthread_mutex_t mutex;
+pthread_cond_t cond;
+
+void cleanup (void *u)
+{
+ /* pthread_cond_wait should always return with the mutex locked. The
+ pthread_mutex_unlock implementation does not actually check whether we
+ own the mutex for several mutex kinds, so check this explicitly. */
+ int ret = pthread_mutex_trylock (&mutex);
+ if (ret != EDEADLK && ret != EBUSY)
+ {
+ printf ("mutex not locked in cleanup %d\n", ret);
+ abort ();
+ }
+ if (pthread_mutex_unlock (&mutex))
+ abort ();
+}
+
+void *
+signaller (void *u)
+{
+ int i, ret = 0;
+ void *tret = NULL;
+
+ for (i = 0; i < ITERS; i++)
+ {
+ if ((ret = pthread_mutex_lock (&mutex)) != 0)
+ {
+ tret = (void *)1;
+ printf ("signaller:mutex_lock failed: %s\n", strerror (ret));
+ goto out;
+ }
+ if ((ret = pthread_cond_signal (&cond)) != 0)
+ {
+ tret = (void *)1;
+ printf ("signaller:signal failed: %s\n", strerror (ret));
+ goto unlock_out;
+ }
+ if ((ret = pthread_mutex_unlock (&mutex)) != 0)
+ {
+ tret = (void *)1;
+ printf ("signaller:mutex_unlock failed: %s\n", strerror (ret));
+ goto out;
+ }
+ pthread_testcancel ();
+ }
+
+out:
+ return tret;
+
+unlock_out:
+ if ((ret = pthread_mutex_unlock (&mutex)) != 0)
+ printf ("signaller:mutex_unlock[2] failed: %s\n", strerror (ret));
+ goto out;
+}
+
+void *
+waiter (void *u)
+{
+ int i, ret = 0;
+ void *tret = NULL;
+ int seq = (uintptr_t) u;
+
+ for (i = 0; i < ITERS / NUM; i++)
+ {
+ if ((ret = pthread_mutex_lock (&mutex)) != 0)
+ {
+ tret = (void *) (uintptr_t) 1;
+ printf ("waiter[%u]:mutex_lock failed: %s\n", seq, strerror (ret));
+ goto out;
+ }
+ pthread_cleanup_push (cleanup, NULL);
+
+ if ((ret = pthread_cond_wait (&cond, &mutex)) != 0)
+ {
+ tret = (void *) (uintptr_t) 1;
+ printf ("waiter[%u]:wait failed: %s\n", seq, strerror (ret));
+ goto unlock_out;
+ }
+
+ if ((ret = pthread_mutex_unlock (&mutex)) != 0)
+ {
+ tret = (void *) (uintptr_t) 1;
+ printf ("waiter[%u]:mutex_unlock failed: %s\n", seq, strerror (ret));
+ goto out;
+ }
+ pthread_cleanup_pop (0);
+ }
+
+out:
+ puts ("waiter tests done");
+ return tret;
+
+unlock_out:
+ if ((ret = pthread_mutex_unlock (&mutex)) != 0)
+ printf ("waiter:mutex_unlock[2] failed: %s\n", strerror (ret));
+ goto out;
+}
+
+void *
+timed_waiter (void *u)
+{
+ int i, ret;
+ void *tret = NULL;
+ int seq = (uintptr_t) u;
+
+ for (i = 0; i < ITERS / NUM; i++)
+ {
+ struct timespec ts;
+
+ if ((ret = clock_gettime(CLOCK_REALTIME, &ts)) != 0)
+ {
+ tret = (void *) (uintptr_t) 1;
+ printf ("%u:clock_gettime failed: %s\n", seq, strerror (errno));
+ goto out;
+ }
+ ts.tv_sec += 20;
+
+ if ((ret = pthread_mutex_lock (&mutex)) != 0)
+ {
+ tret = (void *) (uintptr_t) 1;
+ printf ("waiter[%u]:mutex_lock failed: %s\n", seq, strerror (ret));
+ goto out;
+ }
+ pthread_cleanup_push (cleanup, NULL);
+
+ /* We should not time out either. */
+ if ((ret = pthread_cond_timedwait (&cond, &mutex, &ts)) != 0)
+ {
+ tret = (void *) (uintptr_t) 1;
+ printf ("waiter[%u]:timedwait failed: %s\n", seq, strerror (ret));
+ goto unlock_out;
+ }
+ if ((ret = pthread_mutex_unlock (&mutex)) != 0)
+ {
+ tret = (void *) (uintptr_t) 1;
+ printf ("waiter[%u]:mutex_unlock failed: %s\n", seq, strerror (ret));
+ goto out;
+ }
+ pthread_cleanup_pop (0);
+ }
+
+out:
+ puts ("timed_waiter tests done");
+ return tret;
+
+unlock_out:
+ if ((ret = pthread_mutex_unlock (&mutex)) != 0)
+ printf ("waiter[%u]:mutex_unlock[2] failed: %s\n", seq, strerror (ret));
+ goto out;
+}
+
+int
+do_test_wait (thr_func f)
+{
+ pthread_t w[NUM];
+ pthread_t s;
+ pthread_mutexattr_t attr;
+ int i, j, ret = 0;
+ void *thr_ret;
+
+ for (i = 0; i < COUNT; i++)
+ {
+ if ((ret = pthread_mutexattr_init (&attr)) != 0)
+ {
+ printf ("mutexattr_init failed: %s\n", strerror (ret));
+ goto out;
+ }
+
+ if ((ret = pthread_mutexattr_setprotocol (&attr,
+ PTHREAD_PRIO_INHERIT)) != 0)
+ {
+ printf ("mutexattr_setprotocol failed: %s\n", strerror (ret));
+ goto out;
+ }
+
+ if ((ret = pthread_cond_init (&cond, NULL)) != 0)
+ {
+ printf ("cond_init failed: %s\n", strerror (ret));
+ goto out;
+ }
+
+ if ((ret = pthread_mutex_init (&mutex, &attr)) != 0)
+ {
+ printf ("mutex_init failed: %s\n", strerror (ret));
+ goto out;
+ }
+
+ for (j = 0; j < NUM; j++)
+ if ((ret = pthread_create (&w[j], NULL,
+ f, (void *) (uintptr_t) j)) != 0)
+ {
+ printf ("waiter[%d]: create failed: %s\n", j, strerror (ret));
+ goto out;
+ }
+
+ if ((ret = pthread_create (&s, NULL, signaller, NULL)) != 0)
+ {
+ printf ("signaller: create failed: %s\n", strerror (ret));
+ goto out;
+ }
+
+ for (j = 0; j < NUM; j++)
+ {
+ pthread_cancel (w[j]);
+
+ if ((ret = pthread_join (w[j], &thr_ret)) != 0)
+ {
+ printf ("waiter[%d]: join failed: %s\n", j, strerror (ret));
+ goto out;
+ }
+
+ if (thr_ret != NULL && thr_ret != PTHREAD_CANCELED)
+ {
+ ret = 1;
+ goto out;
+ }
+ }
+
+ /* The signalling thread could have ended before it was cancelled. */
+ pthread_cancel (s);
+
+ if ((ret = pthread_join (s, &thr_ret)) != 0)
+ {
+ printf ("signaller: join failed: %s\n", strerror (ret));
+ goto out;
+ }
+
+ if (thr_ret != NULL && thr_ret != PTHREAD_CANCELED)
+ {
+ ret = 1;
+ goto out;
+ }
+ }
+
+out:
+ return ret;
+}
+
+int
+do_test (int argc, char **argv)
+{
+ int ret = do_test_wait (waiter);
+
+ if (ret)
+ return ret;
+
+ return do_test_wait (timed_waiter);
+}
+
+#include "../test-skeleton.c"
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