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()
36 this->Close(EngineHandle);
39 bool EPollEngine::AddFd(EventHandler* eh)
42 if ((fd < 0) || (fd > MAX_DESCRIPTORS))
44 ServerInstance->Log(DEBUG,"Out of range FD");
48 if (GetRemainingFds() <= 1)
53 ServerInstance->Log(DEBUG,"Ref occupied!");
57 struct epoll_event ev;
58 memset(&ev,0,sizeof(struct epoll_event));
59 eh->Readable() ? ev.events = EPOLLIN : ev.events = EPOLLOUT;
61 int i = epoll_ctl(EngineHandle, EPOLL_CTL_ADD, fd, &ev);
67 ServerInstance->Log(DEBUG,"New file descriptor: %d", fd);
74 void EPollEngine::WantWrite(EventHandler* eh)
76 /** Use oneshot so that the system removes the writeable
77 * status for us and saves us a call.
79 struct epoll_event ev;
80 memset(&ev,0,sizeof(struct epoll_event));
82 ev.data.fd = eh->GetFd();
83 epoll_ctl(EngineHandle, EPOLL_CTL_MOD, eh->GetFd(), &ev);
86 bool EPollEngine::DelFd(EventHandler* eh, bool force)
89 if ((fd < 0) || (fd > MAX_DESCRIPTORS))
95 struct epoll_event ev;
96 memset(&ev,0,sizeof(struct epoll_event));
97 eh->Readable() ? ev.events = EPOLLIN : ev.events = EPOLLOUT;
99 int i = epoll_ctl(EngineHandle, EPOLL_CTL_DEL, fd, &ev);
103 ServerInstance->Log(DEBUG,"Cant remove socket: %s", strerror(errno));
107 ServerInstance->Log(DEBUG,"Remove file descriptor: %d", fd);
111 int EPollEngine::GetMaxFds()
113 return MAX_DESCRIPTORS;
116 int EPollEngine::GetRemainingFds()
118 return MAX_DESCRIPTORS - CurrentSetSize;
121 int EPollEngine::DispatchEvents()
125 int i = epoll_wait(EngineHandle, events, MAX_DESCRIPTORS, 1000);
126 for (int j = 0; j < i; j++)
128 if (events[j].events & EPOLLHUP)
130 if (ref[events[j].data.fd])
131 ref[events[j].data.fd]->HandleEvent(EVENT_ERROR, 0);
134 if (events[j].events & EPOLLERR)
136 /* Get error number */
137 if (getsockopt(events[j].data.fd, SOL_SOCKET, SO_ERROR, &errcode, &codesize) < 0)
139 if (ref[events[j].data.fd])
140 ref[events[j].data.fd]->HandleEvent(EVENT_ERROR, errcode);
143 if (events[j].events & EPOLLOUT)
145 struct epoll_event ev;
146 memset(&ev,0,sizeof(struct epoll_event));
148 ev.data.fd = events[j].data.fd;
149 epoll_ctl(EngineHandle, EPOLL_CTL_MOD, events[j].data.fd, &ev);
150 if (ref[events[j].data.fd])
151 ref[events[j].data.fd]->HandleEvent(EVENT_WRITE);
155 if (ref[events[j].data.fd])
156 ref[events[j].data.fd]->HandleEvent(EVENT_READ);
163 std::string EPollEngine::GetName()