newlib-cygwin/winsup/testsuite/winsup.api/pthread/join1.c

52 lines
912 B
C

/*
* Test for pthread_join().
*
* Depends on API functions: pthread_create(), pthread_join(), pthread_exit().
*/
#include "test.h"
void *
func(void * arg)
{
int i = (int)(size_t)arg;
Sleep(i * 500);
pthread_exit(arg);
/* Never reached. */
exit(1);
}
int
main(int argc, char * argv[])
{
pthread_t id[4];
int i;
void* result = (void*)-1;
/* Create a few threads and then exit. */
for (i = 0; i < 4; i++)
{
assert(pthread_create(&id[i], NULL, func, (void *)(size_t)i) == 0);
}
/* Some threads will finish before they are joined, some after. */
Sleep(1000);
for (i = 0; i < 4; i++)
{
assert(pthread_join(id[i], &result) == 0);
#if ! defined (__MINGW32__) || defined (__MSVCRT__)
assert((int)(size_t)result == i);
#else
# warning pthread_join not fully supported in this configuration.
assert(result == 0);
#endif
}
/* Success. */
return 0;
}