minix3/tests/ipc/shmget/shmget01.c

195 lines
4.7 KiB
C
Raw Normal View History

2020-02-21 00:59:27 +05:30
/*
*
* 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
* shmget01.c
*
* DESCRIPTION
* shmget01 - test that shmget() correctly creates a shared memory segment
*
* ALGORITHM
* loop if that option was specified
* use the TEST() macro to call shmget()
* check the return code
* if failure, issue a FAIL message.
* otherwise,
* if doing functionality testing
* stat the shared memory resource
* check the size, creator pid and mode
* if correct,
* issue a PASS message
* otherwise
* issue a FAIL message
* else issue a PASS message
* call cleanup
*
* USAGE: <for command-line>
* shmget01 [-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
* 03/2001 - Written by Wayne Boyer
*
* RESTRICTIONS
* none
*/
#include "ipcshm.h"
char *TCID = "shmget01";
int TST_TOTAL = 1;
extern int Tst_count;
int shm_id_1 = -1;
int main(int ac, char **av)
{
int lc; /* loop counter */
char *msg; /* message returned from parse_opts */
struct shmid_ds buf;
/* 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;
/*
* Use TEST macro to make the call
*/
TEST(shmget(shmkey, SHM_SIZE, (IPC_CREAT | IPC_EXCL | SHM_RW)));
if (TEST_RETURN == -1) {
tst_resm(TFAIL, "%s call failed - errno = %d : %s",
TCID, TEST_ERRNO, strerror(TEST_ERRNO));
} else {
shm_id_1 = TEST_RETURN;
if (STD_FUNCTIONAL_TEST) {
/* do a STAT and check some info */
if (shmctl(shm_id_1, IPC_STAT, &buf) == -1) {
tst_resm(TBROK, "shmctl failed in "
"functional test");
continue;
}
/* check the seqment size */
if (buf.shm_segsz != SHM_SIZE) {
tst_resm(TFAIL, "seqment size is not "
"correct");
continue;
}
/* check the pid of the creator */
if (buf.shm_cpid != getpid()) {
tst_resm(TFAIL, "creator pid is not "
"correct");
continue;
}
/*
* check the mode of the seqment
* mask out all but the lower 9 bits
*/
if ((buf.shm_perm.mode & MODE_MASK) !=
((SHM_RW) & MODE_MASK)) {
tst_resm(TFAIL, "segment mode is not "
"correct");
continue;
}
/* if we get here, everything looks good */
tst_resm(TPASS, "size, pid & mode are correct");
} else {
tst_resm(TPASS, "call succeeded");
}
}
/*
* clean up things in case we are looping
*/
if (shmctl(shm_id_1, IPC_RMID, NULL) == -1) {
tst_resm(TBROK, "couldn't remove shared memory");
} else {
shm_id_1 = -1;
}
}
cleanup();
/*NOTREACHED*/
return(0);
}
/*
* setup() - performs all the ONE TIME setup for this test.
*/
void
setup(void)
{
/* capture signals */
tst_sig(NOFORK, DEF_HANDLER, cleanup);
/* 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 */
shmkey = getipckey();
}
/*
* cleanup() - performs all the ONE TIME cleanup for this test at completion
* or premature exit.
*/
void
cleanup(void)
{
/* if it exists, remove the shared memory resource */
rm_shm(shm_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();
}