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/* ==== test_pthread_join.c =================================================
* Copyright (c) 1993 by Chris Provenzano, proven@athena.mit.edu
*
* Description : Test pthread_join(). Run this after test_create()
*
* 1.23 94/05/04 proven
* -Started coding this file.
*/
#include <pthread.h>
#include <unistd.h>
#include <stdio.h>
#include "test.h"
/* This thread yields so the creator has a live thread to wait on */
void* new_thread_1(void * new_buf)
{
int i;
sprintf((char *)new_buf, "New thread %%d stack at %p\n", &i);
pthread_yield(); /* (ensure parent can wait on live thread) */
sleep(1);
return(new_buf);
PANIC("return");
}
/* This thread doesn't yield so the creator has a dead thread to wait on */
void* new_thread_2(void * new_buf)
{
int i;
sprintf((char *)new_buf, "New thread %%d stack at %p\n", &i);
return(new_buf);
PANIC("return");
}
int
main()
{
char buf[256], *status;
pthread_t thread;
int debug = 1;
int i = 0;
if (debug)
printf("Original thread stack at %p\n", &i);
CHECKr(pthread_create(&thread, NULL, new_thread_1, (void *)buf));
CHECKr(pthread_join(thread, (void **)(&status)));
if (debug)
printf(status, ++i);
/* Now have the created thread finishing before the join. */
CHECKr(pthread_create(&thread, NULL, new_thread_2, (void *)buf));
pthread_yield();
sleep(1); /* (ensure thread is dead) */
CHECKr(pthread_join(thread, (void **)(&status)));
if (debug)
printf(status, ++i);
SUCCEED;
}
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