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))
45 if (GetRemainingFds() <= 1)
51 struct epoll_event ev;
52 memset(&ev,0,sizeof(struct epoll_event));
53 eh->Readable() ? ev.events = EPOLLIN : ev.events = EPOLLOUT;
55 int i = epoll_ctl(EngineHandle, EPOLL_CTL_ADD, fd, &ev);
61 ServerInstance->Log(DEBUG,"New file descriptor: %d", fd);
68 void EPollEngine::WantWrite(EventHandler* eh)
70 /** Use oneshot so that the system removes the writeable
71 * status for us and saves us a call.
73 struct epoll_event ev;
74 memset(&ev,0,sizeof(struct epoll_event));
76 ev.data.fd = eh->GetFd();
77 epoll_ctl(EngineHandle, EPOLL_CTL_MOD, eh->GetFd(), &ev);
80 bool EPollEngine::DelFd(EventHandler* eh, bool force)
83 if ((fd < 0) || (fd > MAX_DESCRIPTORS))
86 struct epoll_event ev;
87 memset(&ev,0,sizeof(struct epoll_event));
88 eh->Readable() ? ev.events = EPOLLIN : ev.events = EPOLLOUT;
90 int i = epoll_ctl(EngineHandle, EPOLL_CTL_DEL, fd, &ev);
98 ServerInstance->Log(DEBUG,"Remove file descriptor: %d", fd);
102 int EPollEngine::GetMaxFds()
104 return MAX_DESCRIPTORS;
107 int EPollEngine::GetRemainingFds()
109 return MAX_DESCRIPTORS - CurrentSetSize;
112 int EPollEngine::DispatchEvents()
116 int i = epoll_wait(EngineHandle, events, MAX_DESCRIPTORS, 1000);
117 for (int j = 0; j < i; j++)
119 if (events[j].events & EPOLLHUP)
121 if (ref[events[j].data.fd])
122 ref[events[j].data.fd]->HandleEvent(EVENT_ERROR, 0);
125 if (events[j].events & EPOLLERR)
127 /* Get error number */
128 if (getsockopt(events[j].data.fd, SOL_SOCKET, SO_ERROR, &errcode, &codesize) < 0)
130 if (ref[events[j].data.fd])
131 ref[events[j].data.fd]->HandleEvent(EVENT_ERROR, errcode);
134 if (events[j].events & EPOLLOUT)
136 struct epoll_event ev;
137 memset(&ev,0,sizeof(struct epoll_event));
139 ev.data.fd = events[j].data.fd;
140 epoll_ctl(EngineHandle, EPOLL_CTL_MOD, events[j].data.fd, &ev);
141 if (ref[events[j].data.fd])
142 ref[events[j].data.fd]->HandleEvent(EVENT_WRITE);
146 if (ref[events[j].data.fd])
147 ref[events[j].data.fd]->HandleEvent(EVENT_READ);
154 std::string EPollEngine::GetName()