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Diffstat (limited to 'pthreads/tests/rwlock6_t.c')
-rw-r--r-- | pthreads/tests/rwlock6_t.c | 126 |
1 files changed, 126 insertions, 0 deletions
diff --git a/pthreads/tests/rwlock6_t.c b/pthreads/tests/rwlock6_t.c new file mode 100644 index 000000000..aa38bf564 --- /dev/null +++ b/pthreads/tests/rwlock6_t.c @@ -0,0 +1,126 @@ +/* + * rwlock6_t.c + * + * + * -------------------------------------------------------------------------- + * + * Pthreads-win32 - POSIX Threads Library for Win32 + * Copyright(C) 1998 John E. Bossom + * Copyright(C) 1999,2005 Pthreads-win32 contributors + * + * Contact Email: rpj@callisto.canberra.edu.au + * + * The current list of contributors is contained + * in the file CONTRIBUTORS included with the source + * code distribution. The list can also be seen at the + * following World Wide Web location: + * http://sources.redhat.com/pthreads-win32/contributors.html + * + * This 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 of the License, or (at your option) any later version. + * + * This 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 this library in the file COPYING.LIB; + * if not, write to the Free Software Foundation, Inc., + * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA + * + * -------------------------------------------------------------------------- + * + * Check writer and reader locking with reader timeouts + * + * Depends on API functions: + * pthread_rwlock_timedrdlock() + * pthread_rwlock_wrlock() + * pthread_rwlock_unlock() + */ + +#include "test.h" +#include <sys/timeb.h> + +static pthread_rwlock_t rwlock1 = PTHREAD_RWLOCK_INITIALIZER; + +static int bankAccount = 0; + +void * wrfunc(void * arg) +{ + assert(pthread_rwlock_wrlock(&rwlock1) == 0); + Sleep(2000); + bankAccount += 10; + assert(pthread_rwlock_unlock(&rwlock1) == 0); + + return ((void *) bankAccount); +} + +void * rdfunc(void * arg) +{ + int ba = -1; + struct timespec abstime = { 0, 0 }; + struct _timeb currSysTime; + const DWORD NANOSEC_PER_MILLISEC = 1000000; + + _ftime(&currSysTime); + + abstime.tv_sec = currSysTime.time; + abstime.tv_nsec = NANOSEC_PER_MILLISEC * currSysTime.millitm; + + + if ((int) arg == 1) + { + abstime.tv_sec += 1; + assert(pthread_rwlock_timedrdlock(&rwlock1, &abstime) == ETIMEDOUT); + ba = 0; + } + else if ((int) arg == 2) + { + abstime.tv_sec += 3; + assert(pthread_rwlock_timedrdlock(&rwlock1, &abstime) == 0); + ba = bankAccount; + assert(pthread_rwlock_unlock(&rwlock1) == 0); + } + + return ((void *) ba); +} + +int +main() +{ + pthread_t wrt1; + pthread_t wrt2; + pthread_t rdt1; + pthread_t rdt2; + int wr1Result = 0; + int wr2Result = 0; + int rd1Result = 0; + int rd2Result = 0; + + bankAccount = 0; + + assert(pthread_create(&wrt1, NULL, wrfunc, NULL) == 0); + Sleep(500); + assert(pthread_create(&rdt1, NULL, rdfunc, (void *) 1) == 0); + Sleep(500); + assert(pthread_create(&wrt2, NULL, wrfunc, NULL) == 0); + Sleep(500); + assert(pthread_create(&rdt2, NULL, rdfunc, (void *) 2) == 0); + + assert(pthread_join(wrt1, (void **) &wr1Result) == 0); + assert(pthread_join(rdt1, (void **) &rd1Result) == 0); + assert(pthread_join(wrt2, (void **) &wr2Result) == 0); + assert(pthread_join(rdt2, (void **) &rd2Result) == 0); + + assert(wr1Result == 10); + assert(rd1Result == 0); + assert(wr2Result == 20); + assert(rd2Result == 20); + + return 0; +} + + |