acadia/zion/scheduler/scheduler.h

41 lines
876 B
C++

#pragma once
#include <glacier/container/intrusive_list.h>
#include <glacier/memory/ref_ptr.h>
#include "object/process.h"
#include "object/thread.h"
class Scheduler {
public:
// Initializes the scheduler in a disabled state.
//
// Requires the process manager to have been initialized.
static void Init();
void Enable() { enabled_ = true; }
Process& CurrentProcess() { return current_thread_->process(); }
glcr::RefPtr<Thread> CurrentThread() { return current_thread_; }
void Enqueue(const glcr::RefPtr<Thread>& thread) {
runnable_threads_.PushBack(thread);
}
void Preempt();
void Yield();
private:
bool enabled_ = false;
glcr::RefPtr<Thread> current_thread_;
glcr::IntrusiveList<Thread> runnable_threads_;
glcr::RefPtr<Thread> sleep_thread_;
Scheduler();
void SwapToCurrent(Thread& prev);
};
extern Scheduler* gScheduler;