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#include <errno.h>
#include <pthread.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/wait.h>
static pid_t pid;
static void *
pid_thread (void *arg)
{
if (pid != getpid ())
{
printf ("pid wrong in thread: should be %d, is %d\n",
(int) pid, (int) getpid ());
return (void *) 1L;
}
return NULL;
}
static int
do_test (void)
{
pid = getpid ();
pthread_t thr;
int ret = pthread_create (&thr, NULL, pid_thread, NULL);
if (ret)
{
printf ("pthread_create failed: %d\n", ret);
return 1;
}
void *thr_ret;
ret = pthread_join (thr, &thr_ret);
if (ret)
{
printf ("pthread_create failed: %d\n", ret);
return 1;
}
else if (thr_ret)
{
printf ("thread getpid failed\n");
return 1;
}
pid_t child = fork ();
if (child == -1)
{
printf ("fork failed: %m\n");
return 1;
}
else if (child == 0)
{
if (pid == getpid ())
{
puts ("pid did not change after fork");
exit (1);
}
pid = getpid ();
ret = pthread_create (&thr, NULL, pid_thread, NULL);
if (ret)
{
printf ("pthread_create failed: %d\n", ret);
return 1;
}
ret = pthread_join (thr, &thr_ret);
if (ret)
{
printf ("pthread_create failed: %d\n", ret);
return 1;
}
else if (thr_ret)
{
printf ("thread getpid failed\n");
return 1;
}
return 0;
}
int status;
if (TEMP_FAILURE_RETRY (waitpid (child, &status, 0)) != child)
{
puts ("waitpid failed");
kill (child, SIGKILL);
return 1;
}
if (!WIFEXITED (status))
{
if (WIFSIGNALED (status))
printf ("died from signal %s\n", strsignal (WTERMSIG (status)));
else
puts ("did not terminate correctly");
return 1;
}
if (WEXITSTATUS (status) != 0)
{
printf ("exit code %d\n", WEXITSTATUS (status));
return 1;
}
return 0;
}
#define TEST_FUNCTION do_test ()
#include "../test-skeleton.c"
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