| /* |
| * |
| * 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 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; |
| |
| int shm_id_1 = -1; |
| |
| int main(int ac, char **av) |
| { |
| int lc; |
| struct shmid_ds buf; |
| |
| tst_parse_opts(ac, av, NULL, NULL); |
| |
| 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; |
| /* 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"); |
| } |
| |
| /* |
| * 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(); |
| |
| tst_exit(); |
| } |
| |
| /* |
| * setup() - performs all the ONE TIME setup for this test. |
| */ |
| void setup(void) |
| { |
| |
| tst_sig(NOFORK, DEF_HANDLER, cleanup); |
| |
| 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); |
| |
| tst_rmdir(); |
| |
| } |