void myperiodic() {
int i;
for (i = 0; i < 4; i++) {
printf("Periodic task, %d\n", i);
cp++;
ptask_activate(aperiodic_id);
ptask_wait_for_period();
}
}
void gen()
{
int i, j;
for (i=1; i<nt; i++) {
j = ptask_create(task, period[i], prio[i], DEFERRED);
if (j < 0) ptask_syserror("gen()", "error in creating task");
}
for (i=1; i<nt; i++) {
ptask_activate(i);
}
}
void activ_aper_task()
{
int task_to_activate = *((int*) ptask_get_argument());
int i = 0;
while(1) {
if (i%3 == 0) work_for(15, MILLI);
else work_for(5, MILLI);
if (i%2 == 0) ptask_activate(task_to_activate);
i++;
ptask_wait_for_period();
}
}
int main(void)
{
int unit = MILLI;
int i, id, k;
int c; /* character from keyboard */
int ntasks = 0; /* total number of activated tasks*/
int ret = 0;
int tipo_prio = PRIO_EQUAL;
int sched = SCHED_RR;
int part = GLOBAL;
int prot = NO_PROTOCOL;
int test = TASK_FUN;
int modeACT = MOD_NOW; /* {MOD_NOW=0, MOD_DEF_OFFSET=1, MOD_DEF_NO_OFFS = 2} */
int act_flag = NOW;
init(TASK_FUN);
int num_tasks = NUM_T_TEST;
int priority[num_tasks];
ptime v_offset[num_tasks]; /* time offset vector */
for(i = 0; i < num_tasks; i++) v_offset[i] = 0;
modeACT = select_act (v_offset, num_tasks); // {MOD_NOW=0, MOD_DEF_OFFSET=1, MOD_DEF_NO_OFFS = 2}
if ( modeACT == -1 ) {
allegro_exit();
return 0;
}
ptask_init(sched, part, prot);
/* Time reference for timeoffset */
time_t0 = ptask_gettime(MILLI);
ptime time_tmp;
if(modeACT == 0) { // {MOD_NOW=0, MOD_DEF_OFFSET=1, MOD_DEF_NO_OFFS = 2}
act_flag = NOW;
}
else {
act_flag = DEFERRED;
}
init_vettore_prio(tipo_prio, priority, num_tasks);
draw_system_info(sched, part, prot, modeACT, tipo_prio, test, false);
draw_Timetask_info(modeACT);
pthread_mutex_lock(&mxa);
textprintf_ex(screen, font, 2, 25 + 15, FGC, BGC, " Time reference t0 = %ld (time creation/visualization of this screen)", time_t0);
pthread_mutex_unlock(&mxa);
const char* str_offset = "Time offset(ms) inseriti = ";
/* Creation of aperiodic task */
for ( i = 0; i < num_tasks; i++) {
if (modeACT != MOD_DEF_OFFSET) {
/* MODE WITHOUT OFFSET */
time_tmp = ptask_gettime(MILLI);
if(act_flag == NOW) {
pthread_mutex_lock(&mxa);
textprintf_ex(screen, font, X_LINE_VERT0 + 5, Y_TIMES + i * ALT_RIGA, FGC, BGC, "%ld ", time_tmp);
pthread_mutex_unlock(&mxa);
}
id = ptask_create(periodicLine_testSystemTask, PER, priority[i], act_flag);
}
else {
/* MODE WITH OFFSET */
time_tmp = ptask_gettime(MILLI);
pthread_mutex_lock(&mxa);
textprintf_ex(screen, font, (X_LINE_VERT0 + X_LINE_VERT1)/2, Y_TIMES + i * ALT_RIGA, FGC, BGC, "-");
pthread_mutex_unlock(&mxa);
id = ptask_create(periodicLine_testSystemTaskOFFSET, PER, priority[i], act_flag);
printf("act_flag = %d, id = %d, v_offset[%d] = %ld\n", act_flag, id+1, id, v_offset[id]);
ret = ptask_activate_at(id, v_offset[i]);
if (ret != -1) {
draw_activation (ntasks, i, priority[i], false);
ntasks++;
if (i == 0) {
pthread_mutex_lock(&mxa);
textout_ex(screen, font, str_offset, XMIN, BASE1 + 2 * ALT_RIGA, FGC, 0);
pthread_mutex_unlock(&mxa);
}
pthread_mutex_lock(&mxa);
textprintf_ex(screen, font, XMIN + (strlen(str_offset)+i*(NUM_CIF_OFFSET))*PIXEL_CHAR, BASE1 + 2 * ALT_RIGA,FGC, BGC, "%ld", v_offset[i]);
pthread_mutex_unlock(&mxa);
}
else fprintf(stderr, "Task %d non può essere attivato o già avviato!!!\n", i+1);
}
if (id != -1) {
char* temp = " e attivato!\n";
if(act_flag == DEFERRED) {
temp = "!\n";
}
printf("Task %d creato%s", id+1, temp);
}
else {
allegro_exit();
printf("Errore nella creazione(o anche attivazione NOW) del task!\n");
exit(-1);
}
}
do {
k = 0;
if (keypressed()) {
c = readkey();
k = c >> 8;
}
if ((k >= KEY_1) && (k <= KEY_0 + num_tasks) && (modeACT != MOD_DEF_OFFSET)) {
id = k - KEY_0 - 1;
time_tmp = ptask_gettime(unit);
ret = ptask_activate(id);
if (ret != -1) {
printf("Task %d attivato\n", id);
pthread_mutex_lock(&mxa);
textprintf_ex(screen, font, X_LINE_VERT0 + 5, Y_TIMES + (id) * ALT_RIGA,
FGC, BGC, "%ld ", time_tmp);
pthread_mutex_unlock(&mxa);
draw_activation (ntasks, id, priority[id], false);
ntasks++;
}
else{
printf("Task %d non può essere attivato o già avviato!!!\n", id);
pthread_mutex_lock(&mxa);
textprintf_ex(screen, font, X_LINE_VERT0 + 5, Y_TIMES + id * ALT_RIGA,FGC, BGC, "T%d: Gia' attivo! ", id);
pthread_mutex_unlock(&mxa);
}
}
} while (k != KEY_ESC);
allegro_exit();
return 0;
}
