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/* fork a process that has created a detached thread. */
#include <stdlib.h>
#include <sys/wait.h>
#include <pthread.h>
#include <sys/types.h>
#include <unistd.h>
#include <stdio.h>
#include <signal.h>
static void *threadmain(void *dummy)
{
sleep((unsigned long)dummy);
return NULL;
}
int main(int argc, char **argv)
{
int ctr;
pid_t childpid;
pthread_t childthread;
void *res;
int status;
pthread_create(&childthread, NULL, threadmain, (void *)2);
pthread_detach(childthread);
childpid = fork();
switch (childpid) {
case 0:
pthread_create(&childthread, NULL, threadmain, 0);
pthread_join(childthread, &res);
exit(0);
break;
case -1:
perror("FAILED: fork failed\n");
break;
default:
break;
}
ctr = 0;
while (waitpid(childpid, &status, 0) != childpid) {
sleep(1);
ctr++;
if (ctr >= 10) {
fprintf(stderr, "FAILED - timeout waiting for child\n");
return 0;
}
}
fprintf(stderr, "PASS\n");
return 0;
}
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