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/*
* Copyright 2003-2017 The Music Player Daemon Project
* http://www.musicpd.org
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifndef MPD_EVENT_POLLGROUP_POLL_HXX
#define MPD_EVENT_POLLGROUP_POLL_HXX
#include "check.h"
#include "PollResultGeneric.hxx"
#include <vector>
#include <unordered_map>
#include <stddef.h>
#include <sys/poll.h>
class PollGroupPoll
{
struct Item
{
size_t index;
void *obj;
};
std::vector<pollfd> poll_events;
std::unordered_map<int, Item> items;
PollGroupPoll(PollGroupPoll &) = delete;
PollGroupPoll &operator=(PollGroupPoll &) = delete;
public:
static constexpr unsigned READ = POLLIN;
static constexpr unsigned WRITE = POLLOUT;
static constexpr unsigned ERROR = POLLERR;
static constexpr unsigned HANGUP = POLLHUP;
PollGroupPoll() noexcept;
~PollGroupPoll() noexcept;
void ReadEvents(PollResultGeneric &result, int timeout_ms) noexcept;
bool Add(int fd, unsigned events, void *obj) noexcept;
bool Modify(int fd, unsigned events, void *obj) noexcept;
bool Remove(int fd) noexcept;
bool Abandon(int fd) noexcept {
return Remove(fd);
}
};
#endif
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