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EventSelect.h
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EventSelect.h
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// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
// vim: ts=8 sw=2 smarttab
/*
* Ceph - scalable distributed file system
*
* Copyright (C) 2014 UnitedStack <haomai@unitedstack.com>
*
* Author: Haomai Wang <haomaiwang@gmail.com>
*
* This is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License version 2.1, as published by the Free Software
* Foundation. See file COPYING.
*
*/
#ifndef CEPH_MSG_EVENTSELECT_H
#define CEPH_MSG_EVENTSELECT_H
#include "Event.h"
class SelectDriver : public EventDriver {
fd_set rfds, wfds;
/* We need to have a copy of the fd sets as it's not safe to reuse
* FD sets after select(). */
fd_set _rfds, _wfds;
int max_fd;
CephContext *cct;
public:
explicit SelectDriver(CephContext *c): max_fd(0), cct(c) {}
virtual ~SelectDriver() {}
int init(int nevent);
int add_event(int fd, int cur_mask, int add_mask);
int del_event(int fd, int cur_mask, int del_mask);
int resize_events(int newsize);
int event_wait(vector<FiredFileEvent> &fired_events, struct timeval *tp);
};
#endif