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()
22 void EventHandler::SetFd(int FD)
27 SocketEngine::SocketEngine()
29 TotalEvents = WriteEvents = ReadEvents = ErrorEvents = 0;
30 lastempty = ServerInstance->Time();
34 SocketEngine::~SocketEngine()
38 void SocketEngine::SetEventMask(EventHandler* eh, int mask)
40 eh->event_mask = mask;
43 void SocketEngine::ChangeEventMask(EventHandler* eh, int change)
45 int old_m = eh->event_mask;
48 // if we are changing read/write type, remove the previously set bit
49 if (change & FD_WANT_READ_MASK)
50 new_m &= ~FD_WANT_READ_MASK;
51 if (change & FD_WANT_WRITE_MASK)
52 new_m &= ~FD_WANT_WRITE_MASK;
54 // if adding a trial read/write, insert it into the set
55 if (change & FD_TRIAL_NOTE_MASK && !(old_m & FD_TRIAL_NOTE_MASK))
56 trials.insert(eh->GetFd());
62 eh->event_mask = new_m;
63 OnSetEvent(eh, old_m, new_m);
66 void SocketEngine::DispatchTrialWrites()
68 std::vector<int> working_list;
69 working_list.reserve(trials.size());
70 working_list.assign(trials.begin(), trials.end());
72 for(unsigned int i=0; i < working_list.size(); i++)
74 int fd = working_list[i];
75 EventHandler* eh = GetRef(fd);
78 int mask = eh->event_mask;
79 eh->event_mask &= ~(FD_ADD_TRIAL_READ | FD_ADD_TRIAL_WRITE);
80 if ((mask & (FD_ADD_TRIAL_READ | FD_READ_WILL_BLOCK)) == FD_ADD_TRIAL_READ)
81 eh->HandleEvent(EVENT_READ, 0);
82 if ((mask & (FD_ADD_TRIAL_WRITE | FD_WRITE_WILL_BLOCK)) == FD_ADD_TRIAL_WRITE)
83 eh->HandleEvent(EVENT_WRITE, 0);
87 bool SocketEngine::HasFd(int fd)
89 if ((fd < 0) || (fd > GetMaxFds()))
94 EventHandler* SocketEngine::GetRef(int fd)
96 if ((fd < 0) || (fd > GetMaxFds()))
101 bool SocketEngine::BoundsCheckFd(EventHandler* eh)
105 if ((eh->GetFd() < 0) || (eh->GetFd() > GetMaxFds()))
111 int SocketEngine::Accept(EventHandler* fd, sockaddr *addr, socklen_t *addrlen)
113 return accept(fd->GetFd(), addr, addrlen);
116 int SocketEngine::Close(EventHandler* fd)
119 return closesocket(fd->GetFd());
121 return close(fd->GetFd());
125 int SocketEngine::Close(int fd)
128 return closesocket(fd);
134 int SocketEngine::Blocking(int fd)
137 unsigned long opt = 0;
138 return ioctlsocket(fd, FIONBIO, &opt);
140 int flags = fcntl(fd, F_GETFL, 0);
141 return fcntl(fd, F_SETFL, flags & ~O_NONBLOCK);
145 int SocketEngine::NonBlocking(int fd)
148 unsigned long opt = 1;
149 return ioctlsocket(fd, FIONBIO, &opt);
151 int flags = fcntl(fd, F_GETFL, 0);
152 return fcntl(fd, F_SETFL, flags | O_NONBLOCK);
156 void SocketEngine::SetReuse(int fd)
159 struct linger linger = { 0, 0 };
160 setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (char*)&on, sizeof(on));
161 /* This is BSD compatible, setting l_onoff to 0 is *NOT* http://web.irc.org/mla/ircd-dev/msg02259.html */
164 setsockopt(fd, SOL_SOCKET, SO_LINGER, (char*)&linger, sizeof(linger));
167 int SocketEngine::RecvFrom(EventHandler* fd, void *buf, size_t len, int flags, sockaddr *from, socklen_t *fromlen)
169 this->UpdateStats(len, 0);
170 return recvfrom(fd->GetFd(), (char*)buf, len, flags, from, fromlen);
173 int SocketEngine::Send(EventHandler* fd, const void *buf, size_t len, int flags)
175 this->UpdateStats(0, len);
176 return send(fd->GetFd(), (char*)buf, len, flags);
179 int SocketEngine::Recv(EventHandler* fd, void *buf, size_t len, int flags)
181 this->UpdateStats(len, 0);
182 return recv(fd->GetFd(), (char*)buf, len, flags);
185 int SocketEngine::SendTo(EventHandler* fd, const void *buf, size_t len, int flags, const sockaddr *to, socklen_t tolen)
187 this->UpdateStats(0, len);
188 return sendto(fd->GetFd(), (char*)buf, len, flags, to, tolen);
191 int SocketEngine::Connect(EventHandler* fd, const sockaddr *serv_addr, socklen_t addrlen)
193 return connect(fd->GetFd(), serv_addr, addrlen);
196 int SocketEngine::Shutdown(EventHandler* fd, int how)
198 return shutdown(fd->GetFd(), how);
201 int SocketEngine::Bind(int fd, const irc::sockets::sockaddrs& addr)
203 return bind(fd, &addr.sa, addr.sa_size());
206 int SocketEngine::Listen(int sockfd, int backlog)
208 return listen(sockfd, backlog);
211 int SocketEngine::Shutdown(int fd, int how)
213 return shutdown(fd, how);
216 void SocketEngine::RecoverFromFork()
220 void SocketEngine::UpdateStats(size_t len_in, size_t len_out)
222 if (lastempty != ServerInstance->Time())
224 lastempty = ServerInstance->Time();
225 indata = outdata = 0;
231 void SocketEngine::GetStats(float &kbitpersec_in, float &kbitpersec_out, float &kbitpersec_total)
233 UpdateStats(0, 0); /* Forces emptying of the values if its been more than a second */
234 float in_kbit = indata * 8;
235 float out_kbit = outdata * 8;
236 kbitpersec_total = ((in_kbit + out_kbit) / 1024);
237 kbitpersec_in = in_kbit / 1024;
238 kbitpersec_out = out_kbit / 1024;