newlib-cygwin/winsup/testsuite/winsup.api/ltp/sbrk01.c

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/*
* Copyright (c) 2000 Silicon Graphics, Inc. All Rights Reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it would be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
*
* Further, this software is distributed without any warranty that it is
* free of the rightful claim of any third person regarding infringement
* or the like. Any license provided herein, whether implied or
* otherwise, applies only to this software file. Patent licenses, if
* any, provided herein do not apply to combinations of this program with
* other software, or any other product whatsoever.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write the Free Software Foundation, Inc., 59
* Temple Place - Suite 330, Boston MA 02111-1307, USA.
*
* Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
* Mountain View, CA 94043, or:
*
* http://www.sgi.com
*
* For further information regarding this notice, see:
*
* http://oss.sgi.com/projects/GenInfo/NoticeExplan/
*
*/
/* $Id$ */
/**********************************************************
*
* OS Test - Silicon Graphics, Inc.
*
* TEST IDENTIFIER : sbrk01
*
* EXECUTED BY : anyone
*
* TEST TITLE : Basic test for sbrk(2)
*
* PARENT DOCUMENT : usctpl01
*
* TEST CASE TOTAL : 2
*
* WALL CLOCK TIME : 1
*
* CPU TYPES : ALL
*
* AUTHOR : William Roske
*
* CO-PILOT : Dave Fenner
*
* DATE STARTED : 06/05/92
*
* INITIAL RELEASE : UNICOS 7.0
*
* TEST CASES
*
* 1.) sbrk(2) returns...(See Description)
*
* INPUT SPECIFICATIONS
* The standard options for system call tests are accepted.
* (See the parse_opts(3) man page).
*
* OUTPUT SPECIFICATIONS
*
* DURATION
* Terminates - with frequency and infinite modes.
*
* SIGNALS
* Uses SIGUSR1 to pause before test if option set.
* (See the parse_opts(3) man page).
*
* RESOURCES
* None
*
* ENVIRONMENTAL NEEDS
* No run-time environmental needs.
*
* SPECIAL PROCEDURAL REQUIREMENTS
* None
*
* INTERCASE DEPENDENCIES
* None
*
* DETAILED DESCRIPTION
* This is a Phase I test for the sbrk(2) system call. It is intended
* to provide a limited exposure of the system call, for now. It
* should/will be extended when full functional tests are written for
* sbrk(2).
*
* Setup:
* Setup signal handling.
* Pause for SIGUSR1 if option specified.
*
* Test:
* Loop if the proper options are given.
* Execute system call
* Check return code, if system call failed (return=-1)
* Log the errno and Issue a FAIL message.
* Otherwise, Issue a PASS message.
*
* Cleanup:
* Print errno log and/or timing stats if options given
*
*
*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#**/
#include <unistd.h>
#include <errno.h>
#include <string.h>
#include <signal.h>
#include <sys/types.h>
#include "test.h"
#include "usctest.h"
void setup();
void cleanup();
char *TCID="sbrk01"; /* Test program identifier. */
int TST_TOTAL=2; /* Total number of test cases. */
extern int Tst_count; /* Test Case counter for tst_* routines */
int Increment; /* Amount to make change size by */
int
main(int ac, char **av)
{
int lc; /* loop counter */
const char *msg; /* message returned from parse_opts */
long tret;
/***************************************************************
* parse standard options
***************************************************************/
if ( (msg=parse_opts(ac, av, (option_t *) NULL, NULL)) != (char *) NULL ) {
tst_brkm(TBROK, NULL, "OPTION PARSING ERROR - %s", msg);
tst_exit(0);
}
/***************************************************************
* perform global setup for test
***************************************************************/
setup();
#ifdef __CYGWIN__
/* we need to initialize output buffer before first sbrk.
otherwise, when memory is freed bu second sbrk, fwrite will
fail */
tst_resm(TINFO, "Entering test");
#endif
/***************************************************************
* check looping state if -c option given
***************************************************************/
for (lc=0; TEST_LOOPING(lc); lc++) {
/* reset Tst_count in case we are looping. */
Tst_count=0;
/*
* TEST CASE:
* Increase by 8192 bytes
*/
Increment = 8192;
/* Call sbrk(2) */
#if defined(sgi)
tret=(long)sbrk(Increment); /* Remove -64 IRIX compiler warning */
TEST_ERRNO=errno;
#else
TEST(sbrk(Increment));
tret=TEST_RETURN;
#endif
/* check return code */
if ( tret == -1 ) {
TEST_ERROR_LOG(TEST_ERRNO);
tst_resm(TFAIL, "sbrk - Increase by 8192 bytes failed, errno=%d : %s",
TEST_ERRNO, strerror(TEST_ERRNO));
} else {
/***************************************************************
* only perform functional verification if flag set (-f not given)
***************************************************************/
if ( STD_FUNCTIONAL_TEST ) {
/* No Verification test, yet... */
tst_resm(TPASS, "sbrk - Increase by 8192 bytes returned %d",
tret);
}
}
/*
* TEST CASE:
* Decrease to original size
*/
Increment=(Increment * -1);
/* Call sbrk(2) */
#ifdef CRAY
TEST(sbrk(Increment));
tret=TEST_RETURN;
#else
tret=(long)sbrk(Increment);
TEST_ERRNO=errno;
#endif
/* check return code */
if ( tret == -1 ) {
TEST_ERROR_LOG(TEST_ERRNO);
tst_resm(TFAIL, "sbrk - Decrease to original size failed, errno=%d : %s",
TEST_ERRNO, strerror(TEST_ERRNO));
} else {
/***************************************************************
* only perform functional verification if flag set (-f not given)
***************************************************************/
if ( STD_FUNCTIONAL_TEST ) {
/* No Verification test, yet... */
tst_resm(TPASS, "sbrk - Decrease to original size returned %d", tret);
}
}
} /* End for TEST_LOOPING */
/***************************************************************
* cleanup and exit
***************************************************************/
cleanup();
return 0;
} /* End main */
/***************************************************************
* setup() - performs all ONE TIME setup for this test.
***************************************************************/
void
setup()
{
/* capture signals */
tst_sig(NOFORK, DEF_HANDLER, cleanup);
/* make a temp dir and cd to it */
tst_tmpdir();
/* Pause if that option was specified */
TEST_PAUSE;
} /* End setup() */
/***************************************************************
* 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;
/* remove files and temp dir */
tst_rmdir();
/* exit with return code appropriate for results */
tst_exit();
} /* End cleanup() */