mingw-w64-libraries/winpthreads/tests_pthread/cancel8.c

#include "test.h"
#ifndef _UWIN
#include <process.h>
#endif

/*
 * Create NUMTHREADS threads in addition to the Main thread.
 */
enum {
  NUMTHREADS = 4
};

typedef struct bag_t_ bag_t;
struct bag_t_ {
  int threadnum;
  int started;
  /* Add more per-thread state variables here */
  int count;
  pthread_t self;
};

static bag_t threadbag[NUMTHREADS + 1];

pthread_cond_t CV = PTHREAD_COND_INITIALIZER;
pthread_mutex_t CVLock = PTHREAD_MUTEX_INITIALIZER;

unsigned int __stdcall
Win32thread(void * arg)
{
  bag_t * bag = (bag_t *) arg;

  assert(bag == &threadbag[bag->threadnum]);
  assert(bag->started == 0);
  bag->started = 1;

  assert((bag->self = pthread_self()) != 0);
  assert(pthread_gethandle (bag->self) != NULL);
  
  assert(pthread_kill(bag->self, 0) == 0);

  assert(pthread_mutex_lock(&CVLock) == 0);
  pthread_cleanup_push(pthread_mutex_unlock, &CVLock);
  pthread_cond_wait(&CV, &CVLock);
  pthread_cleanup_pop(1);

  return 0;
}

int
main()
{
  int failed = 0;
  int i;
  HANDLE h[NUMTHREADS + 1];
  unsigned thrAddr; /* Dummy variable to pass a valid location to _beginthreadex (Win98). */

  for (i = 1; i <= NUMTHREADS; i++)
    {
      threadbag[i].started = 0;
      threadbag[i].threadnum = i;
      h[i] = (HANDLE) _beginthreadex(NULL, 0, Win32thread, (void *) &threadbag[i], 0, &thrAddr);
    }

  /*
   * Code to control or munipulate child threads should probably go here.
   */
  Sleep(500);

  /*
   * Cancel all threads.
   */
  for (i = 1; i <= NUMTHREADS; i++)
    {
      assert(pthread_kill(threadbag[i].self, 0) == 0);
      assert(pthread_cancel(threadbag[i].self) == 0);
    }

  /*
   * Give threads time to run.
   */
  Sleep(NUMTHREADS * 100);

  /*
   * Standard check that all threads started.
   */
  for (i = 1; i <= NUMTHREADS; i++)
    { 
      if (!threadbag[i].started)
	{
	  failed |= !threadbag[i].started;
	  fprintf(stderr, "Thread %d: started %d\n", i, threadbag[i].started);
	}
    }

  assert(!failed);

  /*
   * Check any results here. Set "failed" and only print output on failure.
   */
  failed = 0;
  for (i = 1; i <= NUMTHREADS; i++)
    {
      int fail = 0;
      int result = 0;

      assert(GetExitCodeThread(h[i], (LPDWORD) &result) == TRUE);

      //assert(threadbag[i].self->h != NULL);
      assert(pthread_kill(threadbag[i].self, 0) == ESRCH);

      fail = (result != (int) (size_t) PTHREAD_CANCELED);

      if (fail)
	{
	  fprintf(stderr, "Thread %d: started %d: count %d\n",
		  i,
		  threadbag[i].started,
		  threadbag[i].count);
	}
      failed = (failed || fail);
    }

  assert(!failed);

  /*
   * Success.
   */
  return 0;
}