102 lines
2.8 KiB
C
102 lines
2.8 KiB
C
/*
|
|
* rwlock6.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
|
|
*
|
|
* Depends on API functions:
|
|
* pthread_rwlock_rdlock()
|
|
* pthread_rwlock_wrlock()
|
|
* pthread_rwlock_unlock()
|
|
*/
|
|
|
|
#include "test.h"
|
|
|
|
static pthread_rwlock_t rwlock1 = PTHREAD_RWLOCK_INITIALIZER;
|
|
|
|
static int bankAccount = 0;
|
|
|
|
void * wrfunc(void * arg)
|
|
{
|
|
int ba;
|
|
|
|
assert(pthread_rwlock_wrlock(&rwlock1) == 0);
|
|
Sleep(200);
|
|
bankAccount += 10;
|
|
ba = bankAccount;
|
|
assert(pthread_rwlock_unlock(&rwlock1) == 0);
|
|
|
|
return ((void *)(size_t)ba);
|
|
}
|
|
|
|
void * rdfunc(void * arg)
|
|
{
|
|
int ba;
|
|
|
|
assert(pthread_rwlock_rdlock(&rwlock1) == 0);
|
|
ba = bankAccount;
|
|
assert(pthread_rwlock_unlock(&rwlock1) == 0);
|
|
|
|
return ((void *)(size_t)ba);
|
|
}
|
|
|
|
int
|
|
main()
|
|
{
|
|
pthread_t wrt1;
|
|
pthread_t wrt2;
|
|
pthread_t rdt;
|
|
void* wr1Result = (void*)0;
|
|
void* wr2Result = (void*)0;
|
|
void* rdResult = (void*)0;
|
|
|
|
bankAccount = 0;
|
|
|
|
assert(pthread_create(&wrt1, NULL, wrfunc, NULL) == 0);
|
|
Sleep(50);
|
|
assert(pthread_create(&rdt, NULL, rdfunc, NULL) == 0);
|
|
Sleep(50);
|
|
assert(pthread_create(&wrt2, NULL, wrfunc, NULL) == 0);
|
|
|
|
assert(pthread_join(wrt1, &wr1Result) == 0);
|
|
assert(pthread_join(rdt, &rdResult) == 0);
|
|
assert(pthread_join(wrt2, &wr2Result) == 0);
|
|
|
|
assert((int)(size_t)wr1Result == 10);
|
|
assert((int)(size_t)rdResult == 10);
|
|
assert((int)(size_t)wr2Result == 20);
|
|
|
|
return 0;
|
|
}
|