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/* <!-- copyright */
/*
* aria2 - The high speed download utility
*
* Copyright (C) 2009 Tatsuhiro Tsujikawa
*
* 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
*
* In addition, as a special exception, the copyright holders give
* permission to link the code of portions of this program with the
* OpenSSL library under certain conditions as described in each
* individual source file, and distribute linked combinations
* including the two.
* You must obey the GNU General Public License in all respects
* for all of the code used other than OpenSSL. If you modify
* file(s) with this exception, you may extend this exception to your
* version of the file(s), but you are not obligated to do so. If you
* do not wish to do so, delete this exception statement from your
* version. If you delete this exception statement from all source
* files in the program, then also delete it here.
*/
/* copyright --> */
#ifndef D_EPOLL_EVENT_POLL_H
#define D_EPOLL_EVENT_POLL_H
#include "EventPoll.h"
# include <sys/epoll.h>
#include <set>
#include "Event.h"
#include "a2functional.h"
#ifdef ENABLE_ASYNC_DNS
# include "AsyncNameResolver.h"
#endif // ENABLE_ASYNC_DNS
namespace aria2 {
class EpollEventPoll : public EventPoll {
private:
class KSocketEntry;
typedef Event<KSocketEntry> KEvent;
typedef CommandEvent<KSocketEntry, EpollEventPoll> KCommandEvent;
typedef ADNSEvent<KSocketEntry, EpollEventPoll> KADNSEvent;
typedef AsyncNameResolverEntry<EpollEventPoll> KAsyncNameResolverEntry;
friend class AsyncNameResolverEntry<EpollEventPoll>;
class KSocketEntry:
public SocketEntry<KCommandEvent, KADNSEvent> {
public:
KSocketEntry(sock_t socket);
struct epoll_event getEvents();
};
friend int accumulateEvent(int events, const KEvent& event);
private:
typedef std::set<SharedHandle<KSocketEntry>,
DerefLess<SharedHandle<KSocketEntry> > > KSocketEntrySet;
KSocketEntrySet socketEntries_;
#ifdef ENABLE_ASYNC_DNS
typedef std::set<SharedHandle<KAsyncNameResolverEntry>,
DerefLess<SharedHandle<KAsyncNameResolverEntry> > >
KAsyncNameResolverEntrySet;
KAsyncNameResolverEntrySet nameResolverEntries_;
#endif // ENABLE_ASYNC_DNS
int epfd_;
size_t epEventsSize_;
struct epoll_event* epEvents_;
static const size_t EPOLL_EVENTS_MAX = 1024;
bool addEvents(sock_t socket, const KEvent& event);
bool deleteEvents(sock_t socket, const KEvent& event);
bool addEvents(sock_t socket, Command* command, int events,
const SharedHandle<AsyncNameResolver>& rs);
bool deleteEvents(sock_t socket, Command* command,
const SharedHandle<AsyncNameResolver>& rs);
public:
EpollEventPoll();
bool good() const;
virtual ~EpollEventPoll();
virtual void poll(const struct timeval& tv);
virtual bool addEvents(sock_t socket,
Command* command, EventPoll::EventType events);
virtual bool deleteEvents(sock_t socket,
Command* command, EventPoll::EventType events);
#ifdef ENABLE_ASYNC_DNS
virtual bool addNameResolver(const SharedHandle<AsyncNameResolver>& resolver,
Command* command);
virtual bool deleteNameResolver
(const SharedHandle<AsyncNameResolver>& resolver, Command* command);
#endif // ENABLE_ASYNC_DNS
static const int IEV_READ = EPOLLIN;
static const int IEV_WRITE = EPOLLOUT;
static const int IEV_ERROR = EPOLLERR;
static const int IEV_HUP = EPOLLHUP;
};
} // namespace aria2
#endif // D_EPOLL_EVENT_POLL_H
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