// Copyright 2018 plutoo
#pragma once
#include "kernel/mutex.h"
#include "kernel/waiter.h"

typedef struct UsermodeEvent UsermodeEvent;

struct UsermodeEvent
{
    Mutex mutex;
    WaiterNode waiter_list;
    bool signal;
    bool auto_clear;
};

void ueventCreate(UsermodeEvent* e, bool auto_clear);
void ueventClear(UsermodeEvent* e);
void ueventSignal(UsermodeEvent* e);

// Internal methods (do not use!):
bool _ueventConsumeIfSignalled(UsermodeEvent* e);
void _ueventAddListener(UsermodeEvent* e, WaiterNode* w);
void _ueventRemoveListener(UsermodeEvent* e, WaiterNode* w);