//
// mp::event
//
// Copyright (C) 2008 FURUHASHI Sadayuki
//
//    Licensed under the Apache License, Version 2.0 (the "License");
//    you may not use this file except in compliance with the License.
//    You may obtain a copy of the License at
//
//        http://www.apache.org/licenses/LICENSE-2.0
//
//    Unless required by applicable law or agreed to in writing, software
//    distributed under the License is distributed on an "AS IS" BASIS,
//    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
//    See the License for the specific language governing permissions and
//    limitations under the License.
//

#ifndef MP_EVENT_H__
#define MP_EVENT_H__

#include "mp/system/config.h"
#include "mp/exception.h"
#include "mp/utility.h"
#include "mp/sparse_array.h"

namespace mp {


template <typename Data>
class event {
public:
	typedef Data data_t;
public:
	inline event();
	inline ~event();
	inline int add(int fd, short event);
MP_ARGS_BEGIN
	template <MP_ARGS_TEMPLATE>
	inline int add(int fd, short event, MP_ARGS_PARAMS);
MP_ARGS_END
	inline int remove(int fd, short oldevent);
	inline int modify(int fd, short oldevent, short newevent);
	inline int wait();
	inline int wait(int timeout_msec);
	inline bool next(int* fd, short* revent);
	inline bool next(int* fd, short* revent, data_t** data);
	inline bool test(int fd);
	inline data_t& data(int fd);
	inline const data_t& data(int fd) const;
private:
	system m_system;
	sparse_array<data_t> m_events;
private:
	event(const event&);
};


template <>
class event<void> {
public:
	typedef void data_t;
public:
	inline event();
	inline ~event();
	inline int add(int fd, short event);
	inline int remove(int fd, short oldevent);
	inline int modify(int fd, short oldevent, short newevent);
	inline int wait();
	inline int wait(int timeout_msec);
	inline bool next(int* fd, short* revent);
private:
	system m_system;
private:
	event(const event&);
};


}  // namespace mp

#include "mp/event_impl.h"

#endif /* mp/event.h */