| /* |
| * |
| * Copyright (c) International Business Machines Corp., 2001 |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 2 of the License, or |
| * (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See |
| * the GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| */ |
| |
| /* |
| * NAME |
| * fork11.c |
| * |
| * DESCRIPTION |
| * Test that parent gets a pid from each child when doing wait |
| * |
| * ALGORITHM |
| * Fork NUMFORKS children that do nothing. |
| * |
| * USAGE |
| * fork11 |
| * |
| * HISTORY |
| * 07/2001 Ported by Wayne Boyer |
| * |
| * RESTRICTIONS |
| * None |
| */ |
| |
| #include <sys/types.h> |
| #include <sys/wait.h> |
| #include <stdio.h> |
| #include <errno.h> |
| #include "test.h" |
| #include "usctest.h" |
| |
| char *TCID = "fork11"; |
| int TST_TOTAL = 1; |
| extern int Tst_count; |
| |
| void setup(void); |
| void cleanup(void); |
| |
| #define NUMFORKS 100 |
| |
| int main(int ac, char **av) |
| { |
| int i, pid, cpid, status; |
| int fail = 0; |
| int lc; /* loop counter */ |
| char *msg; /* message returned from parse_opts */ |
| |
| /* |
| * parse standard options |
| */ |
| if ((msg = parse_opts(ac, av, NULL, NULL)) != NULL) { |
| tst_brkm(TBROK, cleanup, "OPTION PARSING ERROR - %s", msg); |
| /*NOTREACHED*/} |
| |
| /* |
| * perform global setup for the test |
| */ |
| setup(); |
| |
| /* |
| * check looping state if -i option is given |
| */ |
| for (lc = 0; TEST_LOOPING(lc); lc++) { |
| |
| /* |
| * reset Tst_count in case we are looping. |
| */ |
| Tst_count = 0; |
| |
| for (i = 0; i < NUMFORKS; i++) { |
| if ((pid = fork()) == 0) { /* child */ |
| exit(0); |
| } |
| |
| if (pid > 0) { /* parent */ |
| cpid = wait(&status); |
| if (cpid != pid) { |
| fail++; |
| } |
| } else { |
| fail++; |
| break; |
| } |
| } |
| if (fail) { |
| tst_resm(TFAIL, "fork failed %d times", fail); |
| } else { |
| tst_resm(TPASS, "fork test passed, %d processes", i); |
| } |
| } |
| cleanup(); |
| |
| /*NOTREACHED*/ return 0; |
| } |
| |
| /* |
| * setup() - performs all ONE TIME setup for this test |
| */ |
| void setup() |
| { |
| /* |
| * capture signals |
| */ |
| tst_sig(FORK, DEF_HANDLER, cleanup); |
| |
| /* |
| * Pause if that option was specified |
| */ |
| TEST_PAUSE; |
| } |
| |
| /* |
| * cleanup() - performs all ONE TIME cleanup for this test at |
| * completion or premature exit |
| */ |
| void cleanup() |
| { |
| /* |
| * print timing stats if that option was specified. |
| * print errno log if that option was specified. |
| */ |
| TEST_CLEANUP; |
| |
| tst_exit(); |
| } |