166 lines
3.9 KiB
C
166 lines
3.9 KiB
C
/*
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*
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* Copyright (c) International Business Machines Corp., 2001
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
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* the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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/*
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* NAME
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* write02.c
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*
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* DESCRIPTION
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* Basic functionality test: does the return from write match the count
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* of the number of bytes written.
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*
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*
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* ALGORITHM
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* Create a file and write some bytes out to it.
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* Check the return count against the number returned.
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*
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* USAGE: <for command-line>
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* write02 [-c n] [-e] [-i n] [-I x] [-P x] [-t]
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* where, -c n : Run n copies concurrently.
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* -e : Turn on errno logging.
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* -i n : Execute test n times.
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* -I x : Execute test for x seconds.
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* -P x : Pause for x seconds between iterations.
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* -t : Turn on syscall timing.
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*
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* History
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* 07/2001 John George
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* -Ported
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*
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* Restrictions
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* None
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*/
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#include <errno.h>
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#include "test.h"
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#include "usctest.h"
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#include <fcntl.h>
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const char *TCID = "write02()";
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int TST_TOTAL = 1;
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extern int Tst_count;
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void cleanup(void) __attribute__ ((noreturn));
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void setup(void);
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char pfiln[40] = "";
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int
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main(int argc, char **argv)
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{
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int lc; /* loop counter */
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const char *msg; /* message returned from parse_opts */
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int cwrite;
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int fild;
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int iws;
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int badcount = 0;
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char pwbuf[BUFSIZ + 1];
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/* parse standard options */
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if ((msg = parse_opts(argc, argv, (option_t *) NULL, NULL))) {
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tst_brkm(TBROK, cleanup, "OPTION PARSING ERROR - %s", msg);
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/*NOTREACHED*/
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}
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setup(); /* global setup for test */
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/* The following loop checks looping state if -i option given */
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for (lc = 0; TEST_LOOPING(lc); lc++) {
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/* reset Tst_count in case we are looping */
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Tst_count = 0;
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tst_resm(TINFO, "Block 1: test to see write() returns proper "
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"write count");
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for (iws = 0; iws < BUFSIZ; iws++) {
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pwbuf[iws] = 'A' + (iws % 26);
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}
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pwbuf[BUFSIZ] = '\n';
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if ((fild = creat(pfiln, 0777)) == -1) {
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tst_brkm(TBROK, cleanup, "Can't creat Xwrit");
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/*NOTREACHED*/
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}
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for (iws = BUFSIZ; iws > 0; iws--) {
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if ((cwrite = write(fild, pwbuf, iws)) != iws) {
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TEST_ERROR_LOG(errno);
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badcount++;
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tst_resm(TINFO, "bad write count");
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}
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}
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if (badcount != 0) {
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tst_resm(TFAIL, "write() FAILED to return proper cnt");
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} else {
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tst_resm(TPASS, "write() PASSED");
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}
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tst_resm(TINFO, "block 1 passed");
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close(fild);
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}
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cleanup();
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/*NOTREACHED*/
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}
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/*
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* setup() - performs all ONE TIME setup for this test
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*/
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void
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setup(void)
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{
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/* capture signals */
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tst_sig(FORK, DEF_HANDLER, cleanup);
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umask(0);
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/* Pause if that option was specified
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* TEST_PAUSE contains the code to fork the test with the -i option.
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* You want to make sure you do this before you create your temporary
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* directory.
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*/
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TEST_PAUSE;
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/* make a temp directory and cd to it */
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tst_tmpdir();
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sprintf(pfiln, "./write1.%d", getpid());
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}
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/*
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* cleanup() - performs all ONE TIME cleanup for this test at completion or
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* premature exit.
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*/
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void
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cleanup(void)
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{
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/*
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* print timing stats if that option was specified.
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* print errno log if that option was specified.
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*/
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TEST_CLEANUP;
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unlink(pfiln);
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/* Remove tmp dir and all files in it */
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tst_rmdir();
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/* exit with return code appropriate for results */
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tst_exit();
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}
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