Beispiel #1
0
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;
}
Beispiel #2
0
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, &param) == -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, &param) == -1);
                assert(errno = 22);
                assert(sched_getscheduler(id) == 0);
                wait(&status);
                printf("OK\n");
        } else if (id == 0) {
                doShortTask();
                _exit(0);
        }
}
Beispiel #3
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(), &param) == -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, &param);

	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(), &param) != 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;
}
Beispiel #4
0
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, &param);
    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, &param);
    if (!rc)
        goto unresolved;

    label = "sched_getparam()";
    rc = sched_getparam(pid, &param);
    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;
}
Beispiel #5
0
int main(){
	int policy, result;
	int old_priority, old_policy, new_policy;
	struct sched_param param;

	if(sched_getparam(getpid(), &param) != 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, &param);
      
	if(sched_getparam(getpid(), &param) != 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;
	

}
Beispiel #6
0
Datei: 17-2.c Projekt: 1587/ltp
int main(void)
{
	int invalid_priority;
	int old_priority, old_policy, new_policy;
	struct sched_param param;

	if (sched_getparam(getpid(), &param) != 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, &param);

	if (sched_getparam(getpid(), &param) != 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;

}
Beispiel #7
0
int main() {
	int max_priority, old_priority, old_policy, new_policy;
	struct sched_param param;

	if (sched_getparam(getpid(), &param) == -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, &param);

	if (sched_getparam(getpid(), &param) != 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;
}
Beispiel #10
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, &param);
  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;
}
Beispiel #12
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;
}
Beispiel #13
0
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");
		}
	}
}
Beispiel #14
0
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));
	

}
Beispiel #15
0
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));
}
Beispiel #16
0
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;
}
Beispiel #17
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);
}
Beispiel #18
0
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));
}
Beispiel #19
0
int main (void)
{
  if (sched_getscheduler (getpid ()) != SCHED_OTHER)
    abort ();
  printf ("pass\n");
  exit (0);
}
Beispiel #20
0
Datei: fifo.c Projekt: crond/real
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;
}
Beispiel #21
0
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, &param);

	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;

}
Beispiel #22
0
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);
}
Beispiel #23
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);
    }
}
Beispiel #24
0
/** \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;
}
Beispiel #26
0
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, &param ) )
        {
            GKI_TRACE("sched_setscheduler() failed with error: %d", errno);
        }
    }
    else
    {
        GKI_TRACE( "getscheduler failed: %d", errno);
    }
}
Beispiel #28
0
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, &param);
                assert(sched_getscheduler(id) == SCHED_LSHORT);
                assert(sched_getparam(id, &param) == 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);
        }
}
Beispiel #29
0
Datei: 7-1.c Projekt: Nan619/ltp
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;
    }
}
Beispiel #30
0
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);
        }
    }
}