minix/test/ipc/semctl/semctl05.c

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2009-09-21 16:53:53 +02:00
/*
*
* 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
* semctl05.c
*
* DESCRIPTION
* semctl05 - test for ERANGE error
*
* ALGORITHM
* create a semaphore set with read and alter permissions
* loop if that option was specified
* call semctl() with three different invalid cases
* check the errno value
* issue a PASS message if we get ERANGE
* otherwise, the tests fails
* issue a FAIL message
* call cleanup
*
* USAGE: <for command-line>
* semctl05 [-c n] [-e] [-i n] [-I x] [-P x] [-t]
* where, -c n : Run n copies concurrently.
* -e : Turn on errno logging.
* -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
* 03/2001 - Written by Wayne Boyer
*
* RESTRICTIONS
* none
*/
#include "ipcsem.h"
char *TCID = "semctl05";
int TST_TOTAL = 3;
extern int Tst_count;
#ifdef _XLC_COMPILER
#define SEMUN_CAST
#else
#define SEMUN_CAST (union semun)
#endif
int exp_enos[] = {ERANGE, 0}; /* 0 terminated list of expected errnos */
int sem_id_1 = -1;
#define BIGV 65535 /* a number ((2^16)-1) that should be larger */
/* than the maximum for a semaphore value */
#ifdef _XLC_COMPILER
#define SEMUN_CAST
#else
#define SEMUN_CAST (union semun)
#endif
unsigned short big_arr[] = {BIGV, BIGV, BIGV, BIGV, BIGV, BIGV, BIGV, BIGV,
BIGV, BIGV};
struct test_case_t {
int count;
int cmd;
union semun t_arg;
} TC[3];
void setup_test_case(void)
{
/* ERANGE - the value to set is less than zero - SETVAL */
/* {5, SETVAL, SEMUN_CAST -1}, */
TC[0].count = 5;
TC[0].cmd = SETVAL;
TC[0].t_arg.val = -1;
/* ERANGE - the values to set are too large, > semaphore max value */
/* {0, SETALL, SEMUN_CAST big_arr}, */
TC[1].count = 0;
TC[1].cmd = SETALL;
TC[1].t_arg.array = big_arr;
/* ERANGE - the value to set is too large, > semaphore max value */
/* {5, SETVAL, SEMUN_CAST BIGV} */
TC[2].count = 5;
TC[2].cmd = SETVAL;
TC[2].t_arg.val = BIGV;
}
int main(int ac, char **av)
{
int lc; /* loop counter */
char *msg; /* message returned from parse_opts */
int i;
/* parse standard options */
if ((msg = parse_opts(ac, av, (option_t *)NULL, NULL)) != (char *)NULL){
tst_brkm(TBROK, cleanup, "OPTION PARSING ERROR - %s", msg);
}
setup(); /* global setup */
/* The following loop checks looping state if -i option given */
for (lc = 0; TEST_LOOPING(lc); lc++) {
/* reset Tst_count in case we are looping */
Tst_count = 0;
for (i=0; i<TST_TOTAL; i++) {
TEST(semctl(sem_id_1, TC[i].count,
TC[i].cmd, TC[i].t_arg));
if (TEST_RETURN != -1) {
tst_resm(TFAIL, "call succeeded unexpectedly");
continue;
}
TEST_ERROR_LOG(TEST_ERRNO);
switch(TEST_ERRNO) {
case ERANGE:
tst_resm(TPASS, "expected failure - errno = "
"%d : %s", TEST_ERRNO,
strerror(TEST_ERRNO));
break;
default:
tst_resm(TFAIL, "unexpected error "
"- %d : %s", TEST_ERRNO,
strerror(TEST_ERRNO));
break;
}
}
}
cleanup();
/*NOTREACHED*/
return(0);
}
/*
* setup() - performs all the ONE TIME setup for this test.
*/
void
setup(void)
{
setup_test_case();
/* capture signals */
tst_sig(NOFORK, DEF_HANDLER, cleanup);
/* Set up the expected error numbers for -e option */
TEST_EXP_ENOS(exp_enos);
/* Pause if that option was specified */
TEST_PAUSE;
/*
* Create a temporary directory and cd into it.
* This helps to ensure that a unique msgkey is created.
* See ../lib/libipc.c for more information.
*/
tst_tmpdir();
/* get an IPC resource key */
semkey = getipckey();
/* create a semaphore set with read and alter permissions */
if ((sem_id_1 =
semget(semkey, PSEMS, IPC_CREAT | IPC_EXCL | SEM_RA)) == -1) {
tst_brkm(TBROK, cleanup, "couldn't create semaphore in setup");
}
}
/*
* cleanup() - performs all the ONE TIME cleanup for this test at completion
* or premature exit.
*/
void
cleanup(void)
{
/* if it exists, remove the semaphore resouce */
rm_sema(sem_id_1);
/* Remove the temporary directory */
tst_rmdir();
/*
* 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();
}