| /* |
| * |
| * Copyright (c) International Business Machines Corp., 2004 |
| * |
| * 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 |
| * hugeshmget01.c |
| * |
| * DESCRIPTION |
| * hugeshmget01 - test that shmget() correctly creates a large 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 |
| * 04/2004 - Updated by Robbie Williamson |
| * |
| * RESTRICTIONS |
| * none |
| */ |
| |
| #include "ipcshm.h" |
| #include "system_specific_hugepages_info.h" |
| |
| char *TCID = "hugeshmget01"; |
| 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; |
| unsigned long huge_pages_shm_to_be_allocated; |
| |
| /* 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 */ |
| if ( get_no_of_hugepages() <= 0 || hugepages_size() <= 0 ) |
| tst_brkm(TCONF, cleanup, "Not enough available Hugepages"); |
| else |
| huge_pages_shm_to_be_allocated = ( get_no_of_hugepages() * hugepages_size() * 1024) / 2 ; |
| |
| 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, huge_pages_shm_to_be_allocated, (SHM_HUGETLB | 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 != huge_pages_shm_to_be_allocated) { |
| 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(); |
| } |
| |