newlib-cygwin/winsup/testsuite/winsup.api/pthread/once1.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
/*
* once1.c
*
* Create a static pthread_once and test that it calls myfunc once.
*
* Depends on API functions:
* pthread_once()
* pthread_create()
*/
#include "test.h"
pthread_once_t once = PTHREAD_ONCE_INIT;
static int washere = 0;
void
myfunc(void)
{
washere++;
}
void *
mythread(void * arg)
{
assert(pthread_once(&once, myfunc) == 0);
return 0;
}
int
main()
{
pthread_t t1, t2;
assert(pthread_create(&t1, NULL, mythread, NULL) == 0);
assert(pthread_create(&t2, NULL, mythread, NULL) == 0);
Sleep(2000);
assert(washere == 1);
return 0;
}