diff options
Diffstat (limited to 'winsup/testsuite/winsup.api/ltp/pipe09.c')
| -rw-r--r-- | winsup/testsuite/winsup.api/ltp/pipe09.c | 230 |
1 files changed, 0 insertions, 230 deletions
diff --git a/winsup/testsuite/winsup.api/ltp/pipe09.c b/winsup/testsuite/winsup.api/ltp/pipe09.c deleted file mode 100644 index eb21bb601..000000000 --- a/winsup/testsuite/winsup.api/ltp/pipe09.c +++ /dev/null @@ -1,230 +0,0 @@ -/* - * - * 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 - * pipe09.c - * - * DESCRIPTION - * Check that two processes can use the same pipe at the same time. - * - * ALGORITHM - * 1. Open a pipe - * 2. Fork a child which writes to the pipe - * 3. Fork another child which writes a different character to the pipe - * 4. Have the parent read from the pipe - * 5. It should get the characters from both children. - * - * USAGE: <for command-line> - * pipe09 [-c n] [-f] [-i n] [-I x] [-P x] [-t] - * where, -c n : Run n copies concurrently. - * -f : Turn off functionality Testing. - * -i n : Execute test n times. - * -I x : Execute test for x seconds. - * -P x : Pause for x seconds between iterations. - * -t : Turn on syscall timing. - * - * HISTORY - * 07/2001 Ported by Wayne Boyer - * - * RESTRICTIONS - * None - */ -#include <signal.h> -#include <sys/wait.h> -#include <errno.h> -#include "test.h" -#include "usctest.h" - -#define PIPEWRTCNT 100 /* must be an even number */ - -const char *TCID = "pipe09"; -int TST_TOTAL = 1; -extern int Tst_count; - -void setup(void); -void cleanup(void) __attribute__((noreturn)); - -int -main(int ac, char **av) -{ - int lc; /* loop counter */ - const char *msg; /* message returned from parse_opts */ - - int i, red, wtstatus; - int pipefd[2]; /* fds for pipe read/write */ - char rebuf[BUFSIZ]; - int Acnt = 0, Bcnt = 0; /* count 'A' and 'B' */ - int fork_1, fork_2; /* ret values in parent */ - - /* parse standard options */ - if ((msg = parse_opts(ac, av, (option_t *)NULL, NULL)) != (char *)NULL){ - tst_brkm(TBROK, tst_exit, "OPTION PARSING ERROR - %s", msg); - /*NOTREACHED*/ - } - - setup(); - - for (lc = 0; TEST_LOOPING(lc); lc++) { - - /* reset Tst_count in case we are looping */ - Tst_count = 0; - - TEST(pipe(pipefd)); - - if (TEST_RETURN == -1) { - tst_resm(TFAIL, "pipe() call failed"); - continue; - } - - if (!STD_FUNCTIONAL_TEST) { - tst_resm(TWARN, "-f option should not be used"); - tst_resm(TPASS, "call succeeded"); - continue; - } - - if ((fork_1 = fork()) == -1) { - tst_brkm(TBROK, cleanup, "fork() #1 failed"); - /*NOTREACHED*/ - } - - if (fork_1 == 0) { /* 1st child */ - if (close(pipefd[0]) != 0) { - tst_resm(TWARN, "pipefd[0] close failed, " - "errno = %d", errno); - exit(1); - } - - for (i = 0; i < PIPEWRTCNT / 2; ++i) { - if (write(pipefd[1], "A", 1) != 1) { - tst_resm(TWARN, "write to pipe failed"); - exit(1); - } - } - exit(0); - } - - /* parent */ - - waitpid(fork_1, &wtstatus, 0); - if (WEXITSTATUS(wtstatus) != 0) { - tst_brkm(TBROK, cleanup, "problem detected in child, " - "wait status %d, errno = %d", wtstatus, errno); - } - - if ((fork_2 = fork()) == -1) { - tst_brkm(TBROK, cleanup, "fork() #2 failed"); - /*NOTREACHED*/ - } - - if (fork_2 == 0) { /* 2nd child */ - if (close(pipefd[0]) != 0) { - tst_resm(TWARN, "pipefd[0] close " - "failed, errno = %d", errno); - exit(1); - } - - for (i = 0; i < PIPEWRTCNT / 2; ++i) { - if (write(pipefd[1], "B", 1) != 1) { - tst_resm(TWARN, "write to pipe failed"); - exit(1); - } - } - exit(0); - } - - /* parent */ - - waitpid(fork_2, &wtstatus, 0); - if (WEXITSTATUS(wtstatus) != 0) { - tst_brkm(TBROK, cleanup, "problem detected in child, " - "wait status %d, errno = %d", wtstatus, errno); - } - - if (close(pipefd[1]) != 0) { - tst_brkm(TBROK, cleanup, "pipefd[1] close failed, " - "errno = %d", errno); - /*NOTREACHED*/ - } - - while ((red = read(pipefd[0], rebuf, 100)) > 0) { - for (i = 0; i < red; i++) { - if (rebuf[i] == 'A') { - Acnt++; - continue; - } - if (rebuf[i] == 'B') { - Bcnt++; - continue; - } - tst_resm(TFAIL, "got bogus '%c' character", - rebuf[i]); - break; - } - } - - if (red == -1) { - tst_brkm(TBROK, cleanup, "Failure reading pipefd pipe, " - "errno = %d", errno); - } - - if (Bcnt == Acnt && Bcnt == (PIPEWRTCNT / 2)) { - tst_resm(TPASS, "functionality appears to be correct"); - } else { - tst_resm(TFAIL, "functionality is not correct - Acnt " - "= %d, Bcnt = %d", Acnt, Bcnt); - } - - /* clean up things in case we are looping */ - Acnt = Bcnt = 0; - } - 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; - - /* exit with return code appropriate for results */ - tst_exit(); -} |