int main(int argc, char **argv)
{
int result0 = -1;
int result1 = -1;
result0 = sched_getscheduler(0);
result1 = sched_getscheduler(getpid());
if (result0 == result1 &&
errno == 0) {
printf("Test PASSED\n");
return PTS_PASS;
} else if (result0 != result1) {
printf("Different results between pid == 0 "
"and pid == getpid().\n");
return PTS_FAIL;
} else {
perror("Unexpected error");
return PTS_FAIL;
}
printf("This code should not be executed.\n");
return PTS_UNRESOLVED;
}
void testBadParams()
{
int id = fork();
int status;
if (id>0)
{
struct sched_param param;
int expected_requested_time = 7;
int expected_level = 51;
param.lshort_params.requested_time = expected_requested_time;
param.lshort_params.level = expected_level;
assert(sched_setscheduler(id, SCHED_LSHORT, ¶m) == -1);
assert(errno = 22);
assert(sched_getscheduler(id) == 0);
expected_requested_time = 310000;
expected_level = 7;
param.lshort_params.requested_time = expected_requested_time;
param.lshort_params.level = expected_level;
assert(sched_setscheduler(id, SCHED_LSHORT, ¶m) == -1);
assert(errno = 22);
assert(sched_getscheduler(id) == 0);
wait(&status);
printf("OK\n");
} else if (id == 0) {
doShortTask();
_exit(0);
}
}
int main(){
int old_priority, old_policy, new_policy;
struct sched_param param;
int invalid_policy;
invalid_policy = 0;
/* Linux does not treat minus value as invalid for policy */
while(invalid_policy == SCHED_OTHER ||
invalid_policy == SCHED_FIFO ||
invalid_policy == SCHED_RR ||
invalid_policy == SCHED_BATCH)
invalid_policy++;
if(sched_getparam(getpid(), ¶m) == -1) {
perror("An error occurs when calling sched_getparam()");
return PTS_UNRESOLVED;
}
old_priority = param.sched_priority;
old_policy = sched_getscheduler(getpid());
if(old_policy == -1) {
perror("An error occurs when calling sched_getscheduler()");
return PTS_UNRESOLVED;
}
sched_setscheduler(0, invalid_policy, ¶m);
if(errno == 0) {
printf("No error occurs, could %i be a valid value for the scheduling policy ???\n", invalid_policy);
return PTS_UNRESOLVED;
}
if(sched_getparam(getpid(), ¶m) != 0) {
perror("An error occurs when calling sched_getparam()");
return PTS_UNRESOLVED;
}
new_policy = sched_getscheduler(getpid());
if(new_policy == -1) {
perror("An error occurs when calling sched_getscheduler()");
return PTS_UNRESOLVED;
}
if(old_policy == new_policy &&
old_priority == param.sched_priority) {
printf("Test PASSED\n");
return PTS_PASS;
}
if(param.sched_priority != old_priority) {
printf("The param has changed\n");
}
if(new_policy != old_policy) {
printf("The policy has changed\n");
}
return PTS_FAIL;
}
int main(void)
{
int old_priority, old_policy, new_policy;
struct sched_param param;
int invalid_policy;
char *label;
pid_t pid = getpid();
int rc;
invalid_policy = INT_MAX;
label = "sched_getparam()";
rc = sched_getparam(pid, ¶m);
if (rc)
goto unresolved;
old_priority = param.sched_priority;
label = "sched_getscheduler()";
rc = sched_getscheduler(pid);
if (rc < 0)
goto unresolved;
old_policy = rc;
label = "sched_setscheduler() - invalid policy succeeded?";
rc = sched_setscheduler(0, invalid_policy, ¶m);
if (!rc)
goto unresolved;
label = "sched_getparam()";
rc = sched_getparam(pid, ¶m);
if (rc)
goto unresolved;
label = "sched_getscheduler()";
rc = sched_getscheduler(pid);
if (rc < 0)
goto unresolved;
new_policy = rc;
if (old_policy != new_policy) {
printf("Failed: invalid policy change, old: %u, new %u\n",
old_policy, new_policy);
exit(PTS_FAIL);
}
if (old_priority != param.sched_priority) {
printf("Failed: invalid priority change, old: %u, new %u\n",
old_priority, param.sched_priority);
exit(PTS_FAIL);
}
printf("Test PASSED\n");
return PTS_PASS;
unresolved:
ERR_MSG(label, rc);
return PTS_UNRESOLVED;
}
int main(){
int policy, result;
int old_priority, old_policy, new_policy;
struct sched_param param;
if(sched_getparam(getpid(), ¶m) != 0) {
perror("An error occurs when calling sched_getparam()");
return PTS_UNRESOLVED;
}
old_priority = param.sched_priority;
old_policy = sched_getscheduler(getpid());
if(old_policy == -1) {
perror("An error occurs when calling sched_getscheduler()");
return PTS_UNRESOLVED;
}
/* set a sched_ss_repl_period lower than the sched_ss_init_budget */
param.sched_ss_repl_period.tv_sec = 1;
param.sched_ss_repl_period.tv_nsec = 0;
param.sched_ss_init_budget.tv_sec = 2;
param.sched_ss_init_budget.tv_nsec = 0;
param.sched_priority = sched_get_priority_max(SCHED_SPORADIC);
result = sched_setscheduler(0, SCHED_SPORADIC, ¶m);
if(sched_getparam(getpid(), ¶m) != 0) {
perror("An error occurs when calling sched_getparam()");
return PTS_UNRESOLVED;
}
new_policy = sched_getscheduler(getpid());
if(new_policy == -1) {
perror("An error occurs when calling sched_getscheduler()");
return PTS_UNRESOLVED;
}
if(old_policy == new_policy &&
old_priority == param.sched_priority) {
printf("Test PASSED\n");
return PTS_PASS;
}
if(param.sched_priority != old_priority) {
printf("The param has changed\n");
}
if(new_policy != old_policy) {
printf("The policy has changed\n");
}
return PTS_FAIL;
}
int main(void)
{
int invalid_priority;
int old_priority, old_policy, new_policy;
struct sched_param param;
if (sched_getparam(getpid(), ¶m) != 0) {
perror("An error occurs when calling sched_getparam()");
return PTS_UNRESOLVED;
}
old_priority = param.sched_priority;
old_policy = sched_getscheduler(getpid());
if (old_policy == -1) {
perror("An error occurs when calling sched_getscheduler()");
return PTS_UNRESOLVED;
}
invalid_priority = sched_get_priority_max(SCHED_SPORADIC);
if (invalid_priority == -1) {
perror("An error occurs when calling sched_get_priority_max()");
return PTS_UNRESOLVED;
}
/* set an invalid priority */
invalid_priority++;
param.sched_ss_low_priority = invalid_priority;
sched_setscheduler(0, SCHED_SPORADIC, ¶m);
if (sched_getparam(getpid(), ¶m) != 0) {
perror("An error occurs when calling sched_getparam()");
return PTS_UNRESOLVED;
}
new_policy = sched_getscheduler(getpid());
if (new_policy == -1) {
perror("An error occurs when calling sched_getscheduler()");
return PTS_UNRESOLVED;
}
if (old_policy == new_policy && old_priority == param.sched_priority) {
printf("Test PASSED\n");
return PTS_PASS;
}
if (param.sched_priority != old_priority) {
printf("The param has changed\n");
}
if (new_policy != old_policy) {
printf("The policy has changed\n");
}
return PTS_FAIL;
}
int main() {
int max_priority, old_priority, old_policy, new_policy;
struct sched_param param;
if (sched_getparam(getpid(), ¶m) == -1) {
perror("An error occurs when calling sched_getparam()");
return PTS_UNRESOLVED;
}
old_priority = param.sched_priority;
old_policy = sched_getscheduler(getpid());
if (old_policy == -1) {
perror("An error occurs when calling sched_getscheduler()");
return PTS_UNRESOLVED;
}
/* Make sure that param.sched_priority != old_priority */
max_priority = sched_get_priority_max(SCHED_SPORADIC);
param.sched_priority = (old_priority == max_priority) ?
sched_get_priority_min(SCHED_SPORADIC) :
max_priority;
param.sched_ss_max_repl = 0;
sched_setscheduler(0, SCHED_SPORADIC, ¶m);
if (sched_getparam(getpid(), ¶m) != 0) {
perror("An error occurs when calling sched_getparam()");
return PTS_UNRESOLVED;
}
new_policy = sched_getscheduler(getpid());
if (new_policy == -1) {
perror("An error occurs when calling sched_getscheduler()");
return PTS_UNRESOLVED;
}
if (old_policy == new_policy &&
old_priority == param.sched_priority) {
printf("Test PASSED\n");
return PTS_PASS;
}
if (param.sched_priority != old_priority) {
printf("The param has changed\n");
return PTS_FAIL;
}
if (new_policy != old_policy) {
printf("The policy has changed\n");
return PTS_FAIL;
}
}
int main()
{
sched_getscheduler(0);
//staptest// sched_getscheduler (0) = 0
sched_getscheduler((pid_t)-1);
//staptest// sched_getscheduler (-1) = -NNNN (EINVAL)
sched_getscheduler(999999);
//staptest// sched_getscheduler (999999) = -NNNN (ESRCH)
return 0;
}
int main() {
int rc;
rc = sched_getscheduler(0);
printf("Init sched: %d\n", rc);
rc = sched_setscheduler(0, SCHED_POLICY_MYCFS, &MYPARAM);
printf("Rc from set: %d\n", rc);
if(rc == -1)
printf("Errno %d: %s\n", errno, strerror(errno));
fib(20);
rc = sched_getscheduler(0);
printf("Now sched: %d\n", rc);
return 0;
}
int posix_spawnattr_init(posix_spawnattr_t *attr)
{
struct sched_param param;
int ret;
DEBUGASSERT(attr);
/* Flags: None */
attr->flags = 0;
/* Set the default priority to the same priority as this task */
ret = sched_getparam(0, ¶m);
if (ret < 0)
{
return errno;
}
attr->priority = param.sched_priority;
/* Set the default scheduler policy to the policy of this task */
attr->policy = sched_getscheduler(0);
/* Empty signal masek */
attr->sigmask = 0;
/* Default stack size */
attr->stacksize = TASK_SPAWN_DEFAULT_STACKSIZE;
return OK;
}
int get_sched_policy(int tid, SchedPolicy *policy)
{
if (tid == 0) {
tid = gettid();
}
pthread_once(&the_once, __initialize);
if (__sys_supports_schedgroups) {
char grpBuf[32];
if (getSchedulerGroup(tid, grpBuf, sizeof(grpBuf)) < 0)
return -1;
if (grpBuf[0] == '\0') {
*policy = SP_FOREGROUND;
} else if (!strcmp(grpBuf, "bg_non_interactive")) {
*policy = SP_BACKGROUND;
} else {
errno = ERANGE;
return -1;
}
} else {
int rc = sched_getscheduler(tid);
if (rc < 0)
return -1;
else if (rc == SCHED_NORMAL)
*policy = SP_FOREGROUND;
else if (rc == SCHED_BATCH)
*policy = SP_BACKGROUND;
else {
errno = ERANGE;
return -1;
}
}
return 0;
}
// -------------------------------------------------------------------------------------------------
static void* ThreadMainFunction
(
void* expectedPolicy ///< The expected Linux scheduling policy (SCHED_IDLE or SCHED_OTHER).
)
// -------------------------------------------------------------------------------------------------
{
LE_INFO("Checking scheduling policy...");
int schedPolicy = sched_getscheduler(0);
if (schedPolicy == -1)
{
LE_FATAL("Failed to fetch scheduling policy (error %d).", errno);
}
if (expectedPolicy != (void*)(size_t)schedPolicy)
{
LE_FATAL("Expected policy %p. Got %p.", expectedPolicy, (void*)(size_t)schedPolicy);
}
else
{
LE_INFO("Policy correct.");
}
return NULL;
}
void adjust_priority()
{
int sched = sched_getscheduler(0);
if(sched == SCHED_FIFO || sched == SCHED_RR)
{
printf(">> since the scheduling policy is not standard, I assume\n");
printf(" it has been adjusted to fit the needs of realtime audio\n");
}
else
{
struct sched_param sp;
long priority = (sched_get_priority_max(SCHED_FIFO) +
sched_get_priority_min(SCHED_FIFO))/2;
sp.sched_priority = priority;
if(sched_setscheduler(0, SCHED_FIFO, &sp) != -1)
{
printf(">> running as realtime process now (priority %ld)\n",
priority);
putenv("STARTED_THROUGH_ARTSWRAPPER=1");
}
else
{
/* can't set realtime priority */
putenv("STARTED_THROUGH_ARTSWRAPPER=2");
}
}
}
void other(){
original_calloc = (calloc_type)dlsym(RTLD_NEXT, "calloc");
if(!original_calloc){
fprintf(stderr, "original calloc can not be resolved\n");
exit(-1);
}
original_malloc = (malloc_type)dlsym(RTLD_NEXT, "malloc");
if(!original_malloc){
fprintf(stderr, "original malloc can not be resolved\n");
exit(-1);
}
original_free = (free_type)dlsym(RTLD_NEXT, "free");
if(!original_free){
fprintf(stderr, "original free can not be resolved\n");
exit(-1);
}
original_realloc = (realloc_type)dlsym(RTLD_NEXT, "realloc");
if(!original_realloc){
fprintf(stderr, "original realloc can not be resolved\n");
exit(-1);
}
fprintf(stderr, "other %p, malloc %p, calloc %p, realloc %p, free %p\n",
other, malloc, calloc, realloc, free);
fprintf(stderr, "other %p, Retrieved malloc %p, calloc %p, realloc %p, \
free %p\n", other, original_malloc, original_calloc,
original_realloc, original_free);
fprintf(stderr, "SCHED_OTHER: %d\n",
sched_getscheduler(getpid()) == SCHED_OTHER? 1 : 0);
fprintf(stderr, "Min %d, Max %d\n", sched_get_priority_min(SCHED_OTHER),
sched_get_priority_max(SCHED_OTHER));
}
int
lx_sched_getparam(uintptr_t pid, uintptr_t param)
{
int policy, ret;
pid_t s_pid;
lwpid_t s_tid;
struct sched_param sp;
if (((pid_t)pid < 0) || (param == NULL))
return (-EINVAL);
if (lx_lpid_to_spair((pid_t)pid, &s_pid, &s_tid) < 0)
return (-ESRCH);
/*
* If we're attempting to get information on our own process, we can
* get data on a per-thread basis; if not, punt and use the specified
* pid.
*/
if (s_pid == getpid()) {
if ((ret = pthread_getschedparam(s_tid, &policy, &sp)) != 0)
return (-ret);
} else {
if (sched_getparam(s_pid, &sp) == -1)
return (-errno);
if ((policy = sched_getscheduler(s_pid)) < 0)
return (-errno);
}
return (stol_sparam(policy, &sp, (struct lx_sched_param *)param));
}
int main (void)
{
struct sched_param shdprm;
printf ("SCHED_FIFO : from %d to %d\n",
sched_get_priority_min (SCHED_FIFO), sched_get_priority_max (SCHED_FIFO));
printf ("SCHED_RR : from %d to %d\n",
sched_get_priority_min (SCHED_RR), sched_get_priority_max (SCHED_RR));
printf ("SCHED_OTHER: from %d to %d\n",
sched_get_priority_min (SCHED_OTHER), sched_get_priority_max (SCHED_OTHER));
printf ("Current policy for this proccess: ");
switch (sched_getscheduler (0))
{
case SCHED_FIFO:
printf ("SCHED__FIFO\n"); break;
case SCHED_RR:
printf ("SCHED_RR\n"); break;
case SCHED_OTHER:
printf ("SCHED_OTHER\n"); break; case -1:
perror ("SCHED_GETSCHEDULER"); break; default:
printf ("Unknown policy\n");
}
if (sched_getparam (0, &shdprm) == 0)
{
printf ("Current priority for this proccess: %d\n", shdprm.sched_priority);
}
else
{
perror ("SCHED_GETPARAM");
}
return 0;
}
int
main(int argc, char *argv[])
{
int j, pol;
struct sched_param sp;
for (j = 1; j < argc; j++) {
pol = sched_getscheduler(getLong(argv[j], 0, "pid"));
if (pol == -1)
errExit("sched_getscheduler");
if (sched_getparam(getLong(argv[j], 0, "pid"), &sp) == -1)
errExit("sched_getparam");
printf("%s: %-5s ", argv[j],
(pol == SCHED_OTHER) ? "OTHER" :
(pol == SCHED_RR) ? "RR" :
(pol == SCHED_FIFO) ? "FIFO" :
#ifdef SCHED_BATCH /* Linux-specific */
(pol == SCHED_BATCH) ? "BATCH" :
#endif
#ifdef SCHED_IDLE /* Linux-specific */
(pol == SCHED_IDLE) ? "IDLE" :
#endif
"???");
printf("%2d\n", sp.sched_priority);
}
exit(EXIT_SUCCESS);
}
void print_prio(pid_t pid)
{
int sched;
struct sched_param sp;
printf("pid %d's priority: %d\n", pid, getpriority(PRIO_PROCESS, pid));
printf("scheduling class: ");
sched = sched_getscheduler(pid);
switch (sched) {
case SCHED_FIFO:
printf("FIFO\n");
break;
case SCHED_RR:
printf("RR\n");
break;
case SCHED_OTHER:
printf("Normal\n");
break;
case -1:
perror("sched_getscheduler");
break;
default:
printf("Unknown\n");
}
sched_getparam(pid, &sp);
printf("RT prio: %d (of %d to %d)\n", sp.sched_priority,
sched_get_priority_min(sched), sched_get_priority_max(sched));
}
int main (void)
{
if (sched_getscheduler (getpid ()) != SCHED_OTHER)
abort ();
printf ("pass\n");
exit (0);
}
int getschedpolicy(int pid){
int ret =0;
if((ret= sched_getscheduler(pid)) < 0){
printf("Error when getting sched policy. Err: %d:%s\n",errno,strerror(errno));
return -1;
}
switch(ret){
case 0:
printf("Sched Type:Normal. Not running on any Priority \n");
break;
case 1:
printf("Sched Type:FIFO\n");
break;
case 2:
printf("Sched Type:Round Robin Tim sharing Policy\n");
break;
case 3:
printf("Sched Type:Batch. Not running on any Priority. \n");
break;
default:
//Not supposed to come
printf("Sched Type:Unknown\n");
break;
}
return ret;
}
int main(){
int result, old_policy, new_policy;
struct sched_param param;
old_policy = sched_getscheduler(getpid());
if(old_policy == -1) {
perror("An error occurs when calling sched_getscheduler()");
return PTS_UNRESOLVED;
}
/* Make sure new_policy != old_policy */
new_policy = (old_policy == SCHED_FIFO) ? SCHED_RR : SCHED_FIFO;
param.sched_priority = sched_get_priority_max(new_policy);
result = sched_setscheduler(0, new_policy, ¶m);
if(result == old_policy){
printf("Test PASSED\n");
return PTS_PASS;
} else if(result == -1 && errno == EPERM) {
printf("The process have not permission to change its own policy.\nTry to launch this test as root.\n");
return geteuid() != 0 ? PTS_PASS : PTS_UNRESOLVED;
}
printf("Returned code == %i.\n", result);
perror("Unknow error");
return PTS_FAIL;
}
long
lx_sched_setparam(uintptr_t pid, uintptr_t param)
{
int err, policy;
pid_t s_pid;
lwpid_t s_tid;
struct lx_sched_param lp;
struct sched_param sp;
if (((pid_t)pid < 0) || (param == NULL))
return (-EINVAL);
if (lx_lpid_to_spair((pid_t)pid, &s_pid, &s_tid) < 0)
return (-ESRCH);
if (s_pid == getpid()) {
struct sched_param dummy;
if ((err = pthread_getschedparam(s_tid, &policy, &dummy)) != 0)
return (-err);
} else
if ((policy = sched_getscheduler(s_pid)) < 0)
return (-errno);
lx_debug("sched_setparam(): current policy %d", policy);
if (uucopy((void *)param, &lp, sizeof (lp)) != 0)
return (-errno);
/*
* In Linux, the only valid SCHED_OTHER scheduler priority is 0
*/
if ((policy == SCHED_OTHER) && (lp.lx_sched_prio != 0))
return (-EINVAL);
if ((err = ltos_sparam(policy, (struct lx_sched_param *)&lp,
&sp)) != 0)
return (err);
/*
* Check if we're allowed to change the scheduler for the process.
*
* If we're operating on a thread, we can't just call
* pthread_setschedparam() because as all threads reside within a
* single Solaris process, Solaris will allow the modification
*
* If we're operating on a process, we can't just call sched_setparam()
* because Solaris will allow the call to succeed if the scheduler
* parameters do not differ from those being installed, but Linux wants
* the call to fail.
*/
if ((err = check_schedperms(s_pid)) != 0)
return (err);
if (s_pid == getpid())
return (((err = pthread_setschedparam(s_tid, policy, &sp)) != 0)
? -err : 0);
return ((sched_setparam(s_pid, &sp) == -1) ? -errno : 0);
}
void
run_iter(int param) {
int policy, rv, max_prio;
struct sched_param s_param;
(void) param;
policy = sched_getscheduler(0);
if (policy != EXPECT_POLICY) {
fprintf(stderr, "Incorrect scheduler in use.\n");
exit(EXIT_FAILURE);
}
max_prio = sched_get_priority_max(EXPECT_POLICY);
rv = sched_getparam(0, &s_param);
if (rv != 0) {
perror("sched_getparam");
exit(EXIT_FAILURE);
}
if (s_param.sched_priority != max_prio) {
fprintf(stderr, "Wrong scheduler priority: expect %d, got %d.\n",
max_prio, s_param.sched_priority);
exit(EXIT_FAILURE);
}
}
/** \brief Get the process effective scheduling class
*
* Possible Results:
* - process scheduling class is OS_SCHED_REALTIME
* - process scheduling class is OS_SCHED_TIMESHARE
* - process scheduling class is OS_SCHED_DEFAULT if
* the class effective could not be determined
*/
os_schedClass
os_procAttrGetClass(void)
{
os_schedClass class;
int policy;
policy = sched_getscheduler(getpid());
switch (policy)
{
case SCHED_FIFO:
case SCHED_RR:
class = OS_SCHED_REALTIME;
break;
case SCHED_OTHER:
class = OS_SCHED_TIMESHARE;
break;
case -1:
OS_REPORT_1(OS_WARNING, "os_procAttrGetClass", 1,
"sched_getscheduler failed with error %d", errno);
class = OS_SCHED_DEFAULT;
break;
default:
OS_REPORT_1(OS_WARNING, "os_procAttrGetClass", 1,
"sched_getscheduler unexpected return value %d", policy);
class = OS_SCHED_DEFAULT;
break;
}
return class;
}
int pthread_getschedparam(pthread_t thread, FAR int *policy,
FAR struct sched_param *param)
{
int ret;
sdbg("Thread ID=%d policy=0x%p param=0x%p\n", thread, policy, param);
if (!policy || !param)
{
ret = EINVAL;
}
else
{
/* Get the schedparams of the thread. */
ret = sched_getparam((pid_t)thread, param);
if (ret != OK)
{
ret = EINVAL;
}
/* Return the policy. */
*policy = sched_getscheduler((pid_t)thread);
if (*policy == ERROR)
{
ret = get_errno();
}
}
sdbg("Returning %d\n", ret);
return ret;
}
int UC_posix_class::uc_sched_setparam(pid_t pid, const struct uc_sched_param *param) {
UC_process_class *process;
UC_task_class *task;
int policy;
if (param == NULL) {
return EINVAL;
}
if (pid == 0) {
process = qt_parent_process;
}
else {
process = qt_parent_rtos->get_process(pid);
}
if (process == NULL) {
errno = ESRCH;
return -1;
}
policy = sched_getscheduler(pid);
if (param->sched_priority > sched_get_priority_max(policy) || param->sched_priority < sched_get_priority_min(policy)) {
errno = EINVAL;
return -1;
}
task = process->m_task_list[0];
if(task == NULL){
errno= EPERM;
return -1;
}
task->m_schedparam = *param;
return 0;
}
static void gki_set_timer_scheduling( void )
{
pid_t main_pid = getpid();
struct sched_param param;
int policy;
policy = sched_getscheduler(main_pid);
if ( policy != -1 )
{
GKI_TRACE("gki_set_timer_scheduling(()::scheduler current policy: %d", policy);
/* ensure highest priority in the system + 2 to allow space for read threads */
param.sched_priority = GKI_LINUX_TIMER_TICK_PRIORITY;
if ( 0!=sched_setscheduler(main_pid, GKI_LINUX_TIMER_POLICY, ¶m ) )
{
GKI_TRACE("sched_setscheduler() failed with error: %d", errno);
}
}
else
{
GKI_TRACE( "getscheduler failed: %d", errno);
}
}
void testBecomingOverdue()
{
int id = fork();
int status;
if (id > 0) {
struct sched_param param;
int expected_requested_time = 2;
int expected_level = 8;
param.lshort_params.requested_time = expected_requested_time;
param.lshort_params.level = expected_level;
sched_setscheduler(id, SCHED_LSHORT, ¶m);
assert(sched_getscheduler(id) == SCHED_LSHORT);
assert(sched_getparam(id, ¶m) == 0);
//assert(param.lshort_params.requested_time == expected_requested_time);
assert(param.lshort_params.level == expected_level);
wait(&status);
printf("OK\n");
} else if (id == 0) {
int myId = getpid();
int i = lshort_query_overdue_time(myId);
for (i; i < 2; )
{
i = lshort_query_overdue_time(myId);
doShortTask();
}
_exit(0);
}
}
int main(void)
{
int result = -1;
/* We assume process Number 1 is created by root */
/* and can only be accessed by root */
/* This test should be run under standard user permissions */
if (getuid() == 0) {
if (set_nonroot() != 0) {
printf("Cannot run this test as non-root user\n");
return PTS_UNTESTED;
}
}
result = sched_getscheduler(1);
if (result == -1 && errno == EPERM) {
printf("Test PASSED\n");
return PTS_PASS;
}
if (result == 0) {
printf("The function sched_getscheduler has successed.\n");
return PTS_UNTESTED;
}
if (errno != EPERM) {
perror("errno is not EPERM");
return PTS_FAIL;
} else {
perror("Unresolved test error");
return PTS_UNRESOLVED;
}
}
void notify_function(union sigval sv)
{
int ok;
struct timespec ts;
//write(1, ".", 1);
if (count == 0) {
printf("notify_function: getpid()=%d, gettid()=%d\n", getpid(), gettid());
ok = sched_getscheduler(gettid());
printf("scheduler = %d\n", ok);
}
if (count < MAX_COUNT) {
ok = clock_gettime(CLOCK_MONOTONIC, &ts);
if (0 == ok) {
unsigned delta_sec = ts.tv_sec - previous.tv_sec;
int delta_ns = ts.tv_nsec - previous.tv_nsec;
if (delta_ns < 0) {
delta_ns += 1000000000;
--delta_sec;
}
struct timespec delta_x;
delta_x.tv_sec = delta_sec;
delta_x.tv_nsec = delta_ns;
delta_ts[count++] = delta_x;
previous = ts;
ATRACE_INT("cycle_us", delta_ns / 1000);
}
}
}
