newlib-cygwin/winsup/testsuite/winsup.api/pthread/count1.c

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* winsup.api/pthread/: New directory. Ports of pthread functionality tests ported from pthreads-win32 project. * winsup.api/pthread/test.h: Commmon declaraions for pthread tests. * winsup.api/pthread/cleanup2.c: New test. * winsup.api/pthread/cleanup3.c: Ditto. * winsup.api/pthread/condvar1.c: Ditto. * winsup.api/pthread/condvar2.c: Ditto. * winsup.api/pthread/condvar2_1.c: Ditto. * winsup.api/pthread/condvar3.c: Ditto. * winsup.api/pthread/condvar3_1.c: Ditto. * winsup.api/pthread/condvar3_2.c: Ditto. * winsup.api/pthread/condvar3_3.c: Ditto. * winsup.api/pthread/condvar4.c: Ditto. * winsup.api/pthread/condvar5.c: Ditto. * winsup.api/pthread/condvar6.c: Ditto. * winsup.api/pthread/condvar8.c: Ditto. * winsup.api/pthread/count1.c: Ditto. * winsup.api/pthread/create1.c: Ditto. * winsup.api/pthread/create2.c: Ditto. * winsup.api/pthread/equal1.c: Ditto. * winsup.api/pthread/exit1.c: Ditto. * winsup.api/pthread/exit2.c: Ditto. * winsup.api/pthread/exit3.c: Ditto. * winsup.api/pthread/inherit1.c: Ditto. * winsup.api/pthread/join0.c: Ditto. * winsup.api/pthread/join1.c: Ditto. * winsup.api/pthread/join2.c: Ditto. * winsup.api/pthread/mutex1.c: Ditto. * winsup.api/pthread/mutex1r.c: Ditto. * winsup.api/pthread/mutex2.c: Ditto. * winsup.api/pthread/mutex3.c: Ditto. * winsup.api/pthread/mutex6r.c: Ditto. * winsup.api/pthread/once1.c: Ditto. * winsup.api/pthread/priority1.c: Ditto. * winsup.api/pthread/priority2.c: Ditto. * winsup.api/pthread/self1.c: Ditto. * winsup.api/pthread/self2.c: Ditto. * winsup.api/pthread/tsd1.c: Ditto.
2001-11-15 19:19:48 +08:00
/*
* count1.c
*
* Description:
* Test some basic assertions about the number of threads at runtime.
*/
#include "test.h"
#if ! defined (__MINGW32__) || defined (__MSVCRT__)
#define NUMTHREADS (60)
#else
#define NUMTHREADS (59)
#endif
static pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER;
static pthread_t threads[NUMTHREADS];
static unsigned numThreads = 0;
void *
myfunc(void *arg)
{
pthread_mutex_lock(&lock);
numThreads++;
pthread_mutex_unlock(&lock);
Sleep(1000);
return 0;
}
int
main()
{
int i;
int maxThreads = sizeof(threads) / sizeof(pthread_t);
/*
* Spawn NUMTHREADS threads. Each thread should increment the
* numThreads variable, sleep for one second.
*/
for (i = 0; i < maxThreads; i++)
{
assert(pthread_create(&threads[i], NULL, myfunc, 0) == 0);
}
/*
* Wait for all the threads to exit.
*/
for (i = 0; i < maxThreads; i++)
{
assert(pthread_join(threads[i], NULL) == 0);
}
/*
* Check the number of threads created.
*/
assert((int) numThreads == maxThreads);
/*
* Success.
*/
return 0;
}