1 /*
2 * Copyright (c) International Business Machines Corp., 2001
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version.
8 *
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
12 * the GNU General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License
15 * along with this program.
16 *
17 * History
18 * 07/2001 John George
19 * -Ported
20 * 04/2002 wjhuie sigset cleanups
21 */
22
23 /*
24 * DESCRIPTION
25 * Tests to see if pids returned from fork and waitpid are same.
26 *
27 * ALGORITHM
28 * Check proper functioning of waitpid with pid = -1 and arg =
29 * WUNTRACED
30 */
31
32 #include "waitpid_common.h"
33
do_child_1(void)34 static void do_child_1(void)
35 {
36 pid_t pid;
37 int i;
38 int status;
39
40 for (i = 0; i < MAXKIDS; i++) {
41 if (i == (MAXKIDS / 2))
42 SAFE_SETPGID(0, 0);
43
44 pid = SAFE_FORK();
45 if (pid == 0)
46 do_exit(1);
47
48 fork_kid_pid[i] = pid;
49 }
50
51 /* Check that waitpid with WNOHANG|WUNTRACED returns
52 * zero
53 */
54 if (TST_TRACE(waitpid_ret_test(-1, &status, WNOHANG | WUNTRACED, 0, 0)))
55 return;
56
57 TST_CHECKPOINT_WAKE2(0, MAXKIDS);
58
59 if (TST_TRACE(reap_children(-1, WUNTRACED, fork_kid_pid, MAXKIDS)))
60 return;
61
62 tst_res(TPASS, "Test PASSED");
63 }
64
65 static struct tst_test test = {
66 .forks_child = 1,
67 .needs_checkpoints = 1,
68 .setup = waitpid_setup,
69 .cleanup = waitpid_cleanup,
70 .test_all = waitpid_test,
71 };
72