newlib-cygwin/winsup/testsuite/winsup.api/ltp/alarm03.c

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2000-09-03 11:58:18 +08:00
/*
* 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 : alarm03
*
* EXECUTED BY : anyone
*
* TEST TITLE : alarm(2) cleared by a fork
*
* PARENT DOCUMENT : usctpl01
*
* TEST CASE TOTAL : 1
*
* WALL CLOCK TIME : 1
*
* CPU TYPES : ALL
*
* AUTHOR : Richard Logan
*
* CO-PILOT : Dennis Arason
*
* DATE STARTED : 08/96
*
*
* TEST CASES
*
* 1.) alarm(100), fork, child's alarm(0) shall return 0;
* 2.) alarm(100), fork, parent's alarm(0) shall return non-zero.
*
* INPUT SPECIFICATIONS
* The standard options for system call tests are accepted.
* (See the parse_opts(3) man page).
*
*
* SPECIAL PROCEDURAL REQUIREMENTS
* None
*
*
* DETAILED DESCRIPTION
* This is a Phase I test for the alarm(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
* alarm(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 <errno.h>
#include <string.h>
#include <signal.h>
#include "test.h"
#include "usctest.h"
void setup();
void cleanup();
char *TCID="alarm03"; /* Test program identifier. */
int TST_TOTAL=1; /* Total number of test cases. */
extern int Tst_count; /* Test Case counter for tst_* routines */
int
main(int ac, char **av)
{
int lc; /* loop counter */
const char *msg; /* message returned from parse_opts */
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/***************************************************************
* 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();
}
/***************************************************************
* perform global setup for test
***************************************************************/
setup();
/***************************************************************
* 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;
/*
* Call alarm(2)
*/
TEST(alarm(100));
switch ( fork()) {
case -1:
tst_brkm(TBROK, cleanup, "fork failed, errno:%d %s",
errno, strerror(errno));
break;
case 0:
TEST( alarm(0) );
if ( TEST_RETURN != 0 )
tst_resm(TFAIL,
"alarm(100), fork, alarm(0) child's alarm returned %d",
TEST_RETURN);
else if ( STD_FUNCTIONAL_TEST )
tst_resm(TPASS,
"alarm(100), fork, alarm(0) child's alarm returned %d",
TEST_RETURN);
exit(0);
break;
default:
Tst_count++;
TEST( alarm(0) );
if ( TEST_RETURN <= 0 || TEST_RETURN > 100 )
tst_resm(TFAIL,
"alarm(100), fork, alarm(0) parent's alarm returned %d",
TEST_RETURN);
else if ( STD_FUNCTIONAL_TEST )
tst_resm(TPASS,
"alarm(100), fork, alarm(0) parent's alarm returned %d",
TEST_RETURN);
}
} /* End for TEST_LOOPING */
/***************************************************************
* cleanup and exit
***************************************************************/
cleanup();
return 0;
} /* End main */
/***************************************************************
* setup() - performs all ONE TIME setup for this test.
***************************************************************/
void
setup()
{
void trapper();
/* capture signals */
tst_sig(FORK, DEF_HANDLER, cleanup);
signal(SIGALRM, trapper);
/* 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;
/* exit with return code appropriate for results */
tst_exit();
} /* End cleanup() */
void
trapper(sig)
int sig;
{
signal(SIGALRM, trapper);
}