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EventHandler class, an abstraction for raw i/o
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1 /*       +------------------------------------+
2  *       | Inspire Internet Relay Chat Daemon |
3  *       +------------------------------------+
4  *
5  *  InspIRCd is copyright (C) 2002-2006 ChatSpike-Dev.
6  *                       E-mail:
7  *                <brain@chatspike.net>
8  *                <Craig@chatspike.net>
9  *
10  * Written by Craig Edwards, Craig McLure, and others.
11  * This program is free but copyrighted software; see
12  *            the file COPYING for details.
13  *
14  * ---------------------------------------------------
15 */
16
17 #ifndef __SOCKETENGINE_EPOLL__
18 #define __SOCKETENGINE_EPOLL__
19
20 #include <vector>
21 #include <string>
22 #include <map>
23 #include "inspircd_config.h"
24 #include "globals.h"
25 #include "inspircd.h"
26 #include "socketengine.h"
27 #include <sys/epoll.h>
28 #define EP_DELAY 5
29
30 class InspIRCd;
31
32 /** A specialisation of the SocketEngine class, designed to use linux 2.6 epoll().
33  */
34 class EPollEngine : public SocketEngine
35 {
36 private:
37         /** These are used by epoll() to hold socket events
38          */
39         struct epoll_event events[MAX_DESCRIPTORS];
40 public:
41         /** Create a new EPollEngine
42          * @param Instance The creator of this object
43          */
44         EPollEngine(InspIRCd* Instance);
45         /** Delete an EPollEngine
46          */
47         virtual ~EPollEngine();
48         virtual bool AddFd(EventHandler* eh);
49         virtual int GetMaxFds();
50         virtual int GetRemainingFds();
51         virtual bool DelFd(EventHandler* eh);
52         virtual int Wait(EventHandler** fdlist);
53         virtual std::string GetName();
54 };
55
56 /** Creates a SocketEngine
57  */
58 class SocketEngineFactory
59 {
60 public:
61         /** Create a new instance of SocketEngine based on EpollEngine
62          */
63         SocketEngine* Create(InspIRCd* Instance) { return new EPollEngine(Instance); }
64 };
65
66 #endif