• Home
  • Line#
  • Scopes#
  • Navigate#
  • Raw
  • Download
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