diff options
Diffstat (limited to 'winsup/testsuite/winsup.api/ltp/fork03.c')
-rw-r--r-- | winsup/testsuite/winsup.api/ltp/fork03.c | 164 |
1 files changed, 164 insertions, 0 deletions
diff --git a/winsup/testsuite/winsup.api/ltp/fork03.c b/winsup/testsuite/winsup.api/ltp/fork03.c new file mode 100644 index 000000000..cda913273 --- /dev/null +++ b/winsup/testsuite/winsup.api/ltp/fork03.c @@ -0,0 +1,164 @@ +/* + * + * 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 + * fork03.c + * + * DESCRIPTION + * Check that child can use a large text space and do a large + * number of operations. + * + * ALGORITHM + * Fork one process, check for pid == 0 in child. + * Check for pid > 0 in parent after wait. + * + * USAGE + * fork03 + * + * HISTORY + * 07/2001 Ported by Wayne Boyer + * + * RESTRICTIONS + * None + */ + +#include <stdio.h> +#include "test.h" +#include "usctest.h" + +void setup(void); +void cleanup(void); + +char *TCID = "fork03"; +int TST_TOTAL = 1; +extern int Tst_count; + +void setup(void); +void cleanup(void); + +main(int ac, char **av) +{ + float fl1, fl2; + int i; + int pid1, pid2, status; + + int lc; /* loop counter */ + const char *msg; /* message returned from parse_opts */ + + /* + * parse standard options + */ + if ((msg = parse_opts(ac, av, (option_t *)NULL, NULL)) != (char *)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; + + if ((pid1 = fork()) == -1) { + tst_brkm(TBROK, cleanup, "fork() failed"); + } + + if (pid1 == 0) { /* child */ + /* child uses some cpu cycles */ + for (i = 1; i < 32767; i++) { + fl1 = 0.000001; + fl1 = fl2 = 0.000001; + fl1 = fl1 * 10.0; + fl2 = fl1 / 1.232323; + fl1 = fl2 - fl2; + fl1 = fl2; + } + + /* Pid must always be zero in child */ + + if (pid1 != 0) { + exit(1); + } else { + exit(0); + } + } else { /* parent */ + tst_resm(TINFO, "process id in parent of child from " + "fork : %d", pid1); + pid2 = wait(&status); /* wait for child */ + + if (pid1 != pid2) { + tst_resm(TFAIL, "pids don't match : %d vs %d", + pid1, pid2); + continue; + } + + if ((status >> 8) != 0) { + tst_resm(TFAIL, "child exited with failure"); + continue; + } + + tst_resm(TPASS, "test 1 PASSED"); + } + } + cleanup(); + + /*NOTREACHED*/ +} + +/* + * 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(); +} |