1 /* +------------------------------------+
2 * | Inspire Internet Relay Chat Daemon |
3 * +------------------------------------+
5 * InspIRCd: (C) 2002-2007 InspIRCd Development Team
6 * See: http://www.inspircd.org/wiki/index.php/Credits
8 * This program is free but copyrighted software; see
9 * the file COPYING for details.
11 * ---------------------------------------------------
15 #include "exitcodes.h"
16 #include <sys/epoll.h>
17 #include "socketengine_epoll.h"
19 EPollEngine::EPollEngine(InspIRCd* Instance) : SocketEngine(Instance)
21 EngineHandle = epoll_create(MAX_DESCRIPTORS);
23 if (EngineHandle == -1)
25 ServerInstance->Log(SPARSE,"ERROR: Could not initialize socket engine: %s", strerror(errno));
26 ServerInstance->Log(SPARSE,"ERROR: Your kernel probably does not have the proper features. This is a fatal error, exiting now.");
27 printf("ERROR: Could not initialize socket engine: %s\n", strerror(errno));
28 printf("ERROR: Your kernel probably does not have the proper features. This is a fatal error, exiting now.\n");
29 ServerInstance->Exit(EXIT_STATUS_SOCKETENGINE);
34 EPollEngine::~EPollEngine()
39 bool EPollEngine::AddFd(EventHandler* eh)
42 if ((fd < 0) || (fd > MAX_DESCRIPTORS))
45 if (GetRemainingFds() <= 1)
52 struct epoll_event ev;
53 memset(&ev,0,sizeof(struct epoll_event));
54 eh->Readable() ? ev.events = EPOLLIN : ev.events = EPOLLOUT;
56 int i = epoll_ctl(EngineHandle, EPOLL_CTL_ADD, fd, &ev);
62 ServerInstance->Log(DEBUG,"New file descriptor: %d", fd);
67 void EPollEngine::WantWrite(EventHandler* eh)
69 /** Use oneshot so that the system removes the writeable
70 * status for us and saves us a call.
72 struct epoll_event ev;
73 memset(&ev,0,sizeof(struct epoll_event));
75 ev.data.fd = eh->GetFd();
76 epoll_ctl(EngineHandle, EPOLL_CTL_MOD, eh->GetFd(), &ev);
79 bool EPollEngine::DelFd(EventHandler* eh, bool force)
82 if ((fd < 0) || (fd > MAX_DESCRIPTORS))
85 struct epoll_event ev;
86 memset(&ev,0,sizeof(struct epoll_event));
87 eh->Readable() ? ev.events = EPOLLIN : ev.events = EPOLLOUT;
89 int i = epoll_ctl(EngineHandle, EPOLL_CTL_DEL, fd, &ev);
97 ServerInstance->Log(DEBUG,"Remove file descriptor: %d", fd);
101 int EPollEngine::GetMaxFds()
103 return MAX_DESCRIPTORS;
106 int EPollEngine::GetRemainingFds()
108 return MAX_DESCRIPTORS - CurrentSetSize;
111 int EPollEngine::DispatchEvents()
115 int i = epoll_wait(EngineHandle, events, MAX_DESCRIPTORS, 1000);
116 for (int j = 0; j < i; j++)
118 if (events[j].events & EPOLLHUP)
120 if (ref[events[j].data.fd])
121 ref[events[j].data.fd]->HandleEvent(EVENT_ERROR, 0);
124 if (events[j].events & EPOLLERR)
126 /* Get error number */
127 if (getsockopt(events[j].data.fd, SOL_SOCKET, SO_ERROR, &errcode, &codesize) < 0)
129 if (ref[events[j].data.fd])
130 ref[events[j].data.fd]->HandleEvent(EVENT_ERROR, errcode);
133 if (events[j].events & EPOLLOUT)
135 struct epoll_event ev;
136 memset(&ev,0,sizeof(struct epoll_event));
138 ev.data.fd = events[j].data.fd;
139 epoll_ctl(EngineHandle, EPOLL_CTL_MOD, events[j].data.fd, &ev);
140 if (ref[events[j].data.fd])
141 ref[events[j].data.fd]->HandleEvent(EVENT_WRITE);
145 if (ref[events[j].data.fd])
146 ref[events[j].data.fd]->HandleEvent(EVENT_READ);
153 std::string EPollEngine::GetName()