90 lines
2.5 KiB
C
90 lines
2.5 KiB
C
/*
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* count1.c
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*
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*
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* --------------------------------------------------------------------------
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*
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* Pthreads-win32 - POSIX Threads Library for Win32
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* Copyright(C) 1998 John E. Bossom
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* Copyright(C) 1999,2005 Pthreads-win32 contributors
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*
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* Contact Email: rpj@callisto.canberra.edu.au
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*
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* The current list of contributors is contained
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* in the file CONTRIBUTORS included with the source
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* code distribution. The list can also be seen at the
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* following World Wide Web location:
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* http://sources.redhat.com/pthreads-win32/contributors.html
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library in the file COPYING.LIB;
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* if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
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*
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* --------------------------------------------------------------------------
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*
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* Description:
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* Test some basic assertions about the number of threads at runtime.
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*/
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#include "test.h"
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#define NUMTHREADS (30)
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static pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER;
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static pthread_t threads[NUMTHREADS];
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static unsigned numThreads = 0;
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void *
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myfunc(void *arg)
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{
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pthread_mutex_lock(&lock);
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numThreads++;
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pthread_mutex_unlock(&lock);
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Sleep(1000);
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return 0;
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}
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int
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main()
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{
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int i;
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int maxThreads = sizeof(threads) / sizeof(pthread_t);
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/*
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* Spawn NUMTHREADS threads. Each thread should increment the
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* numThreads variable, sleep for one second.
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*/
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for (i = 0; i < maxThreads; i++)
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{
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assert(pthread_create(&threads[i], NULL, myfunc, 0) == 0);
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}
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/*
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* Wait for all the threads to exit.
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*/
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for (i = 0; i < maxThreads; i++)
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{
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assert(pthread_join(threads[i], NULL) == 0);
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}
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/*
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* Check the number of threads created.
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*/
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assert((int) numThreads == maxThreads);
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/*
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* Success.
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*/
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return 0;
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}
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