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2006-09-08 Ulrich Drepper <drepper@redhat.com> [BZ #3123] * sysdeps/pthread/pthread_cond_wait.c (__condvar_cleanup): Don't increment WAKEUP_SEQ if this would increase the value beyond TOTAL_SEQ. * sysdeps/unix/sysv/linux/i386/i486/pthread_cond_wait.c: Likewise. * sysdeps/unix/sysv/linux/i386/i486/pthread_cond_timedwait.c: Likewise. * sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.c: Likewise. * Makefile (tests): Add tst-cond22. * tst-cond22.c: New file.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,153 @@ | ||
| #include <pthreadP.h> | ||
| #include <stdio.h> | ||
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| static pthread_barrier_t b; | ||
| static pthread_cond_t c = PTHREAD_COND_INITIALIZER; | ||
| static pthread_mutex_t m = PTHREAD_MUTEX_INITIALIZER; | ||
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| static void | ||
| cl (void *arg) | ||
| { | ||
| pthread_mutex_unlock (&m); | ||
| } | ||
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| static void * | ||
| tf (void *arg) | ||
| { | ||
| if (pthread_mutex_lock (&m) != 0) | ||
| { | ||
| printf ("%s: mutex_lock failed\n", __func__); | ||
| exit (1); | ||
| } | ||
| int e = pthread_barrier_wait (&b); | ||
| if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD) | ||
| { | ||
| printf ("%s: barrier_wait failed\n", __func__); | ||
| exit (1); | ||
| } | ||
| pthread_cleanup_push (cl, NULL); | ||
| if (pthread_cond_wait (&c, &m) != 0) | ||
| { | ||
| printf ("%s: cond_wait failed\n", __func__); | ||
| exit (1); | ||
| } | ||
| pthread_cleanup_pop (0); | ||
| if (pthread_mutex_unlock (&m) != 0) | ||
| { | ||
| printf ("%s: mutex_unlock failed\n", __func__); | ||
| exit (1); | ||
| } | ||
| return NULL; | ||
| } | ||
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| static int | ||
| do_test (void) | ||
| { | ||
| int status = 0; | ||
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| if (pthread_barrier_init (&b, NULL, 2) != 0) | ||
| { | ||
| puts ("barrier_init failed"); | ||
| return 1; | ||
| } | ||
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| pthread_t th; | ||
| if (pthread_create (&th, NULL, tf, NULL) != 0) | ||
| { | ||
| puts ("1st create failed"); | ||
| return 1; | ||
| } | ||
| int e = pthread_barrier_wait (&b); | ||
| if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD) | ||
| { | ||
| puts ("1st barrier_wait failed"); | ||
| return 1; | ||
| } | ||
| if (pthread_mutex_lock (&m) != 0) | ||
| { | ||
| puts ("1st mutex_lock failed"); | ||
| return 1; | ||
| } | ||
| if (pthread_cond_signal (&c) != 0) | ||
| { | ||
| puts ("1st cond_signal failed"); | ||
| return 1; | ||
| } | ||
| if (pthread_cancel (th) != 0) | ||
| { | ||
| puts ("cancel failed"); | ||
| return 1; | ||
| } | ||
| if (pthread_mutex_unlock (&m) != 0) | ||
| { | ||
| puts ("1st mutex_unlock failed"); | ||
| return 1; | ||
| } | ||
| void *res; | ||
| if (pthread_join (th, &res) != 0) | ||
| { | ||
| puts ("1st join failed"); | ||
| return 1; | ||
| } | ||
| if (res != PTHREAD_CANCELED) | ||
| { | ||
| puts ("first thread not canceled"); | ||
| status = 1; | ||
| } | ||
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| printf ("cond = { %d, %x, %lld, %lld, %lld, %p, %u, %u }\n", | ||
| c.__data.__lock, c.__data.__futex, c.__data.__total_seq, | ||
| c.__data.__wakeup_seq, c.__data.__woken_seq, c.__data.__mutex, | ||
| c.__data.__nwaiters, c.__data.__broadcast_seq); | ||
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| if (pthread_create (&th, NULL, tf, NULL) != 0) | ||
| { | ||
| puts ("2nd create failed"); | ||
| return 1; | ||
| } | ||
| e = pthread_barrier_wait (&b); | ||
| if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD) | ||
| { | ||
| puts ("2nd barrier_wait failed"); | ||
| return 1; | ||
| } | ||
| if (pthread_mutex_lock (&m) != 0) | ||
| { | ||
| puts ("2nd mutex_lock failed"); | ||
| return 1; | ||
| } | ||
| if (pthread_cond_signal (&c) != 0) | ||
| { | ||
| puts ("2nd cond_signal failed"); | ||
| return 1; | ||
| } | ||
| if (pthread_mutex_unlock (&m) != 0) | ||
| { | ||
| puts ("2nd mutex_unlock failed"); | ||
| return 1; | ||
| } | ||
| if (pthread_join (th, &res) != 0) | ||
| { | ||
| puts ("2nd join failed"); | ||
| return 1; | ||
| } | ||
| if (res != NULL) | ||
| { | ||
| puts ("2nd thread canceled"); | ||
| status = 1; | ||
| } | ||
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| printf ("cond = { %d, %x, %lld, %lld, %lld, %p, %u, %u }\n", | ||
| c.__data.__lock, c.__data.__futex, c.__data.__total_seq, | ||
| c.__data.__wakeup_seq, c.__data.__woken_seq, c.__data.__mutex, | ||
| c.__data.__nwaiters, c.__data.__broadcast_seq); | ||
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| return status; | ||
| } | ||
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| #define TEST_FUNCTION do_test () | ||
| #include "../test-skeleton.c" |