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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_EVENTKQUEUE_H
#define CEPH_MSG_EVENTKQUEUE_H
#include <sys/types.h>
#include <sys/event.h>
#include <unistd.h>
#include "Event.h"
class KqueueDriver : public EventDriver {
int kqfd;
pthread_t mythread;
struct kevent *res_events;
CephContext *cct;
int size;
// Keep what we set on the kqfd
struct SaveEvent{
int fd;
int mask;
};
struct SaveEvent *sav_events;
int sav_max;
int restore_events();
int test_kqfd();
int test_thread_change(const char* funcname);
public:
explicit KqueueDriver(CephContext *c): kqfd(-1), res_events(NULL), cct(c),
size(0), sav_max(0) {}
virtual ~KqueueDriver() {
if (kqfd != -1)
close(kqfd);
if (res_events)
free(res_events);
size = 0;
if (sav_events)
free(sav_events);
sav_max = 0;
}
int init(EventCenter *c, int nevent) override;
int add_event(int fd, int cur_mask, int add_mask) override;
int del_event(int fd, int cur_mask, int del_mask) override;
int resize_events(int newsize) override;
int event_wait(vector<FiredFileEvent> &fired_events,
struct timeval *tp) override;
};
#endif
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