#include <stdio.h>
#include <pthread.h>
#include <errno.h>
// test program from johan.walles (bug 295590)
// This test verifies that helgrind detects (and does not crash) when
// the guest application wrongly destroys a cond var being waited
// upon.
pthread_mutex_t mutex;
pthread_cond_t cond;
pthread_t thread; 
int ready = 0;

void *ThreadFunction(void *ptr)
{
   pthread_mutex_lock(&mutex);
   ready = 1;
   pthread_cond_signal(&cond);
   pthread_cond_destroy(&cond); // ERROR!!!
   pthread_mutex_unlock(&mutex);
   return NULL; 
}

int main() 
{ 
   pthread_mutex_init(&mutex, NULL); 
   pthread_cond_init(&cond, NULL);

   pthread_mutex_lock(&mutex);
   pthread_create(&thread, NULL, ThreadFunction, (void*) NULL);
   while (!ready) { // to insure ourselves against spurious wakeups
      pthread_cond_wait(&cond, &mutex);
   }
   pthread_mutex_unlock(&mutex);

   pthread_join(thread, NULL); 
   pthread_mutex_destroy(&mutex); 
   printf("finished\n");
   return 0; 
}