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