diff options
Diffstat (limited to 'winsup/testsuite/winsup.api/ltp/pipe11.c')
| -rw-r--r-- | winsup/testsuite/winsup.api/ltp/pipe11.c | 227 |
1 files changed, 0 insertions, 227 deletions
diff --git a/winsup/testsuite/winsup.api/ltp/pipe11.c b/winsup/testsuite/winsup.api/ltp/pipe11.c deleted file mode 100644 index 558e70a96..000000000 --- a/winsup/testsuite/winsup.api/ltp/pipe11.c +++ /dev/null @@ -1,227 +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 - * pipe11.c - * - * DESCRIPTION - * Check if many children can read what is written to a pipe by the - * parent. - * - * ALGORITHM - * 1. Open a pipe and write to it - * 2. Fork a large number of children - * 3. Have the children read the pipe and check how many characters - * each got - * - * USAGE: <for command-line> - * pipe11 [-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 <errno.h> -#include <limits.h> -#include <sys/wait.h> -#include "test.h" -#include "usctest.h" - -const char *TCID = "pipe11"; -int TST_TOTAL = 1; -extern int Tst_count; - -void setup(void); -void cleanup(void) __attribute__((noreturn)); - -#define NUMCHILD 50 -#define NCPERCHILD 50 -char rawchars[] = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz1234567890"; -int kidid; -int numchild; /* no of children to fork */ -int ncperchild; /* no of chars child should read */ -int szcharbuf; /* size of char buf */ -int pipewrcnt; /* chars written to pipe */ -char *wrbuf, *rdbuf; - -int -main(int ac, char **av) -{ - int lc; /* loop counter */ - const char *msg; /* message returned from parse_opts */ - - int fd[2]; /* fds for pipe read/write */ - int i; - int fork_ret, status; - int nread, written; /* no of chars read and written */ - - /* 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(fd)); - - if (TEST_RETURN != 0) { - tst_resm(TFAIL, "pipe creation failed"); - continue; - } - - if (!STD_FUNCTIONAL_TEST) { - tst_resm(TPASS, "call succeeded"); - continue; - } - - written = write(fd[1], wrbuf, szcharbuf); - if (written != szcharbuf) { - tst_brkm(TBROK, cleanup, "write to pipe failed"); - } - -refork: - ++kidid; - fork_ret = fork(); - - if (fork_ret < 0) { - tst_brkm(TBROK, cleanup, "fork() failed"); - /*NOTREACHED*/ - } - - if ((fork_ret != 0) && (fork_ret != -1) && (kidid < numchild)) { - goto refork; - } - - if (fork_ret == 0) { /* child */ - if (close(fd[1])) { - tst_resm(TINFO, "child %d " "could not close " - "pipe", kidid); - exit(0); - } - nread = read(fd[0], rdbuf, ncperchild); - if (nread == ncperchild) { - tst_resm(TINFO, "child %d " "got %d chars", - kidid, nread); - exit(0); - } else { - tst_resm(TFAIL, "child %d did not receive " - "expected no of characters, got %d " - "characters", kidid, nread); - exit(1); - } - } - - /* parent */ - sleep(5); - tst_resm(TINFO, "There are %d children to wait for", kidid); - for (i = 1; i <= kidid; ++i) { - wait(&status); - if (status == 0) { - tst_resm(TPASS, "child %d exitted successfully", - i); - } else { - tst_resm(TFAIL, "child %d exitted with bad " - "status", i); - } - } - } - cleanup(); - - /*NOTREACHED*/ -} - -/* - * setup() - performs all ONE TIME setup for this test. - */ -void -setup() -{ - int i, j; - - /* capture signals */ - tst_sig(FORK, DEF_HANDLER, cleanup); - - /* Pause if that option was specified */ - TEST_PAUSE; - - numchild = NUMCHILD; - ncperchild = NCPERCHILD; - - kidid = 0; - - /* allocate read and write buffers */ - szcharbuf = numchild * ncperchild; - - /* make sure pipe write doesn't block */ - if (szcharbuf == PIPE_BUF) { - /* adjust number of characters per child */ - ncperchild = szcharbuf / numchild; - } - - if ((wrbuf = (char *)malloc(szcharbuf)) == (char *)0) { - tst_brkm(TBROK, cleanup, "malloc failed"); - /*NOTREACHED*/ - } - - if ((rdbuf = (char *)malloc(szcharbuf)) == (char *)0) { - tst_brkm(TBROK, cleanup, "malloc of rdbuf failed"); - /*NOTREACHED*/ - } - - /* initialize wrbuf */ - j = 0; - for (i = 0; i < szcharbuf; ) { - wrbuf[i++] = rawchars[j++]; - if (j >= (int)sizeof(rawchars)) { - j = 0; - } - } -} - -/* - * 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(); -} |