/*
* func_stat() - check the functionality of the IPC_STAT command with shmctl()
* by looking at the pid of the creator, the segement size,
* the number of attaches and the mode.
*/
void
func_stat()
{
int fail = 0;
pid_t pid;
/* check perm, pid, nattach and size */
pid = getpid();
if (buf.shm_cpid != pid) {
tst_resm(TFAIL, "creator pid is incorrect");
fail = 1;
}
if (!fail && buf.shm_segsz != HUGE_SHM_SIZE) {
tst_resm(TFAIL, "segment size is incorrect");
fail = 1;
}
/*
* The first time through, only the children attach the memory, so
* the attaches equal N_ATTACH + stat_time (0). The second time
* through, the parent attaches the memory and the children inherit
* that memory so the attaches equal N_ATTACH + stat_time (1).
*/
if (!fail && buf.shm_nattch != N_ATTACH + stat_time) {
tst_resm(TFAIL, "# of attaches is incorrect - %d",
buf.shm_nattch);
fail = 1;
}
/* use MODE_MASK to make sure we are comparing the last 9 bits */
if (!fail && (buf.shm_perm.mode & MODE_MASK) != ((SHM_RW) & MODE_MASK)) {
tst_resm(TFAIL, "segment mode is incorrect");
fail = 1;
}
stat_cleanup();
/* save the change time for use in the next test */
save_time = buf.shm_ctime;
if (fail) {
return;
}
tst_resm(TPASS, "pid, size, # of attaches and mode are correct "
"- pass #%d", stat_time);
}
int main(int ac, char **av)
{
int lc; /* loop counter */
char *msg; /* message returned from parse_opts */
int i;
void check_functionality(void);
/* 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;
/* initialize stat_time */
stat_time = FIRST;
/*
* Create a shared memory segment with read and write
* permissions. Do this here instead of in setup()
* so that looping (-i) will work correctly.
*/
if ((shm_id_1 = shmget(shmkey, HUGE_SHM_SIZE, SHM_HUGETLB | IPC_CREAT | IPC_EXCL |
SHM_RW)) == -1) {
tst_brkm(TBROK, cleanup, "couldn't create the shared"
" memory segment");
}
/* loop through the test cases */
for (i=0; i<TST_TOTAL; i++) {
/*
* if needed, set up any required conditions by
* calling the appropriate setup function
*/
if (TC[i].func_setup != NULL) {
(*TC[i].func_setup)();
}
/*
* Use TEST macro to make the call
*/
TEST(shmctl(shm_id_1, TC[i].cmd, &buf));
if (TEST_RETURN == -1) {
tst_resm(TFAIL, "%s call failed - errno "
"= %d : %s", TCID, TEST_ERRNO,
strerror(TEST_ERRNO));
continue;
}
if (STD_FUNCTIONAL_TEST) {
(*TC[i].func_test)();
} else {
tst_resm(TPASS, "call succeeded");
/* now perform command related cleanup */
switch(TC[i].cmd) {
case IPC_STAT:
stat_cleanup();
break;
case IPC_RMID:
shm_id_1 = -1;
break;
}
}
}
}
cleanup();
/*NOTREACHED*/
return(0);
}
int main(int ac, char **av)
{
int lc, i;
const char *msg;
msg = parse_opts(ac, av, options, &help);
if (msg != NULL)
tst_brkm(TBROK, NULL, "OPTION PARSING ERROR - %s", msg);
if (sflag)
hugepages = SAFE_STRTOL(NULL, nr_opt, 0, LONG_MAX);
setup();
for (lc = 0; TEST_LOOPING(lc); lc++) {
tst_count = 0;
/* initialize stat_time */
stat_time = FIRST;
/*
* Create a shared memory segment with read and write
* permissions. Do this here instead of in setup()
* so that looping (-i) will work correctly.
*/
shm_id_1 = shmget(shmkey, shm_size,
SHM_HUGETLB | IPC_CREAT | IPC_EXCL | SHM_RW);
if (shm_id_1 == -1)
tst_brkm(TBROK | TERRNO, cleanup, "shmget #main");
for (i = 0; i < TST_TOTAL; i++) {
/*
* if needed, set up any required conditions by
* calling the appropriate setup function
*/
if (TC[i].func_setup != NULL)
(*TC[i].func_setup) ();
if (shmctl(shm_id_1, TC[i].cmd, &buf) == -1) {
tst_resm(TFAIL | TERRNO, "shmctl #main");
continue;
}
if (STD_FUNCTIONAL_TEST) {
(*TC[i].func_test) ();
} else {
tst_resm(TPASS, "shmctl call succeeded");
/* now perform command related cleanup */
switch (TC[i].cmd) {
case IPC_STAT:
stat_cleanup();
break;
case IPC_RMID:
shm_id_1 = -1;
break;
}
}
}
}
cleanup();
tst_exit();
}