1 /* +------------------------------------+
2 * | Inspire Internet Relay Chat Daemon |
3 * +------------------------------------+
5 * InspIRCd: (C) 2002-2010 InspIRCd Development Team
6 * See: http://wiki.inspircd.org/Credits
8 * This program is free but copyrighted software; see
9 * the file COPYING for details.
11 * ---------------------------------------------------
16 EventHandler::EventHandler()
21 void EventHandler::SetFd(int FD)
26 SocketEngine::SocketEngine()
28 TotalEvents = WriteEvents = ReadEvents = ErrorEvents = 0;
29 lastempty = ServerInstance->Time();
33 SocketEngine::~SocketEngine()
37 void SocketEngine::SetEventMask(EventHandler* eh, int mask)
39 eh->event_mask = mask;
42 void SocketEngine::ChangeEventMask(EventHandler* eh, int change)
44 int old_m = eh->event_mask;
47 // if we are changing read/write type, remove the previously set bit
48 if (change & FD_WANT_READ_MASK)
49 new_m &= ~FD_WANT_READ_MASK;
50 if (change & FD_WANT_WRITE_MASK)
51 new_m &= ~FD_WANT_WRITE_MASK;
53 // if adding a trial read/write, insert it into the set
54 if (change & FD_TRIAL_NOTE_MASK && !(old_m & FD_TRIAL_NOTE_MASK))
55 trials.insert(eh->GetFd());
61 eh->event_mask = new_m;
62 OnSetEvent(eh, old_m, new_m);
65 void SocketEngine::DispatchTrialWrites()
67 std::vector<int> working_list;
68 working_list.reserve(trials.size());
69 working_list.assign(trials.begin(), trials.end());
71 for(unsigned int i=0; i < working_list.size(); i++)
73 int fd = working_list[i];
74 EventHandler* eh = GetRef(fd);
77 int mask = eh->event_mask;
78 eh->event_mask &= ~(FD_ADD_TRIAL_READ | FD_ADD_TRIAL_WRITE);
79 if ((mask & (FD_ADD_TRIAL_READ | FD_READ_WILL_BLOCK)) == FD_ADD_TRIAL_READ)
80 eh->HandleEvent(EVENT_READ, 0);
81 if ((mask & (FD_ADD_TRIAL_WRITE | FD_WRITE_WILL_BLOCK)) == FD_ADD_TRIAL_WRITE)
82 eh->HandleEvent(EVENT_WRITE, 0);
86 bool SocketEngine::HasFd(int fd)
88 if ((fd < 0) || (fd > GetMaxFds()))
93 EventHandler* SocketEngine::GetRef(int fd)
95 if ((fd < 0) || (fd > GetMaxFds()))
100 bool SocketEngine::BoundsCheckFd(EventHandler* eh)
104 if ((eh->GetFd() < 0) || (eh->GetFd() > GetMaxFds()))
110 int SocketEngine::Accept(EventHandler* fd, sockaddr *addr, socklen_t *addrlen)
112 return accept(fd->GetFd(), addr, addrlen);
115 int SocketEngine::Close(EventHandler* fd)
118 return closesocket(fd->GetFd());
120 return close(fd->GetFd());
124 int SocketEngine::Close(int fd)
127 return closesocket(fd);
133 int SocketEngine::Blocking(int fd)
136 unsigned long opt = 0;
137 return ioctlsocket(fd, FIONBIO, &opt);
139 int flags = fcntl(fd, F_GETFL, 0);
140 return fcntl(fd, F_SETFL, flags & ~O_NONBLOCK);
144 int SocketEngine::NonBlocking(int fd)
147 unsigned long opt = 1;
148 return ioctlsocket(fd, FIONBIO, &opt);
150 int flags = fcntl(fd, F_GETFL, 0);
151 return fcntl(fd, F_SETFL, flags | O_NONBLOCK);
155 void SocketEngine::SetReuse(int fd)
158 struct linger linger = { 0, 0 };
159 setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (char*)&on, sizeof(on));
160 /* This is BSD compatible, setting l_onoff to 0 is *NOT* http://web.irc.org/mla/ircd-dev/msg02259.html */
163 setsockopt(fd, SOL_SOCKET, SO_LINGER, (char*)&linger, sizeof(linger));
166 int SocketEngine::RecvFrom(EventHandler* fd, void *buf, size_t len, int flags, sockaddr *from, socklen_t *fromlen)
168 this->UpdateStats(len, 0);
169 return recvfrom(fd->GetFd(), (char*)buf, len, flags, from, fromlen);
172 int SocketEngine::Send(EventHandler* fd, const void *buf, size_t len, int flags)
174 this->UpdateStats(0, len);
175 return send(fd->GetFd(), (char*)buf, len, flags);
178 int SocketEngine::Recv(EventHandler* fd, void *buf, size_t len, int flags)
180 this->UpdateStats(len, 0);
181 return recv(fd->GetFd(), (char*)buf, len, flags);
184 int SocketEngine::SendTo(EventHandler* fd, const void *buf, size_t len, int flags, const sockaddr *to, socklen_t tolen)
186 this->UpdateStats(0, len);
187 return sendto(fd->GetFd(), (char*)buf, len, flags, to, tolen);
190 int SocketEngine::Connect(EventHandler* fd, const sockaddr *serv_addr, socklen_t addrlen)
192 return connect(fd->GetFd(), serv_addr, addrlen);
195 int SocketEngine::Shutdown(EventHandler* fd, int how)
197 return shutdown(fd->GetFd(), how);
200 int SocketEngine::Bind(int fd, const irc::sockets::sockaddrs& addr)
202 return bind(fd, &addr.sa, addr.sa_size());
205 int SocketEngine::Listen(int sockfd, int backlog)
207 return listen(sockfd, backlog);
210 int SocketEngine::Shutdown(int fd, int how)
212 return shutdown(fd, how);
215 void SocketEngine::RecoverFromFork()
219 void SocketEngine::UpdateStats(size_t len_in, size_t len_out)
221 if (lastempty != ServerInstance->Time())
223 lastempty = ServerInstance->Time();
224 indata = outdata = 0;
230 void SocketEngine::GetStats(float &kbitpersec_in, float &kbitpersec_out, float &kbitpersec_total)
232 UpdateStats(0, 0); /* Forces emptying of the values if its been more than a second */
233 float in_kbit = indata * 8;
234 float out_kbit = outdata * 8;
235 kbitpersec_total = ((in_kbit + out_kbit) / 1024);
236 kbitpersec_in = in_kbit / 1024;
237 kbitpersec_out = out_kbit / 1024;