void
DTimer::sheduleAtFixedRate(const ITimerTask &task,
unsigned int delay,
unsigned int interval) {
if (interval == 0) {
//no need to adept period when interval == 0
shedule(task, delay, interval);
} else {
if (_task != NULL) {
//THROWN("shedule already run");
return;
}
_task = const_cast<ITimerTask*>(&task);
//_canceled = false;
_task->setValid(true);
ITimerTask *tsafe = _task;//use this poiter for thread safty
wait(delay);
//while (!_canceled) {
while (tsafe->isValid()) {
int64 stime = Date::getCurrentTime();
tsafe->run();
int64 timeCost = (Date::getCurrentTime() - stime)/TIME_SCALE;
int64 fixedDelay = timeCost > interval ? 0 : interval - timeCost;
wait(fixedDelay);
}
}
}
void proc_init() {
kprintf("Initializing process manager...\n");
procs_list = kmalloc(sizeof(list_t));
idle_proc = create_proc((uint32)idle);
strcpy(idle_proc->name, "sysidle");
idle_proc->state = PS_IDLE;
//current_proc = idle_proc;
shedule();
}
uint32 switch_task(uint32 old_esp) {
if (current_proc != 0) {
current_proc->esp = old_esp;
current_proc->context = (context_t *)old_esp;
}
shedule();
tss->esp0 = current_proc->kernel_stack;
vmm_set_current_page_directory(current_proc->page_dir);
return current_proc->esp;
}
void
DTimer::shedule(const ITimerTask &task,
const Date &firstTime,
unsigned int interval) {
int64 iCurTime = Date::getCurrentTime();
int64 delay = firstTime.time() - iCurTime;
if (delay < 0) {
THROW("TIMER_INVALID_START_TIME");
}
//delay is milliseconds
shedule(task, (unsigned int)delay/TIME_SCALE, interval);
}
