-/* +------------------------------------+\r * | Inspire Internet Relay Chat Daemon |\r * +------------------------------------+\r *\r * InspIRCd: (C) 2002-2007 InspIRCd Development Team\r * See: http://www.inspircd.org/wiki/index.php/Credits\r *\r * This program is free but copyrighted software; see\r * the file COPYING for details.\r *\r * ---------------------------------------------------\r */\r\r#include "inspircd.h"\r#include "socketengine.h"\r\rint EventHandler::GetFd()\r{\r return this->fd;\r}\r\rvoid EventHandler::SetFd(int FD)\r{\r this->fd = FD;\r}\r\rbool EventHandler::Readable()\r{\r return true;\r}\r\rbool EventHandler::Writeable()\r{\r return false;\r}\r\rvoid SocketEngine::WantWrite(EventHandler* eh)\r{\r}\r\rSocketEngine::SocketEngine(InspIRCd* Instance) : ServerInstance(Instance)\r{\r memset(ref, 0, sizeof(ref));\r}\r\rSocketEngine::~SocketEngine()\r{\r}\r\rbool SocketEngine::AddFd(EventHandler* eh)\r{\r return true;\r}\r\rbool SocketEngine::HasFd(int fd)\r{\r if ((fd < 0) || (fd > MAX_DESCRIPTORS))\r return false;\r return ref[fd];\r}\r\rEventHandler* SocketEngine::GetRef(int fd)\r{\r if ((fd < 0) || (fd > MAX_DESCRIPTORS))\r return 0;\r return ref[fd];\r}\r\rbool SocketEngine::DelFd(EventHandler* eh, bool force)\r{\r return true;\r}\r\rint SocketEngine::GetMaxFds()\r{\r return 0;\r}\r\rint SocketEngine::GetRemainingFds()\r{\r return 0;\r}\r\rint SocketEngine::DispatchEvents()\r{\r return 0;\r}\r\rstd::string SocketEngine::GetName()\r{\r return "misconfigured";\r}\r\r
\ No newline at end of file
+/*
+ * InspIRCd -- Internet Relay Chat Daemon
+ *
+ * Copyright (C) 2009 Daniel De Graaf <danieldg@inspircd.org>
+ * Copyright (C) 2008 Robin Burchell <robin+git@viroteck.net>
+ * Copyright (C) 2005-2008 Craig Edwards <craigedwards@brainbox.cc>
+ * Copyright (C) 2007 Burlex <???@???>
+ * Copyright (C) 2007 Dennis Friis <peavey@inspircd.org>
+ *
+ * This file is part of InspIRCd. InspIRCd is free software: you can
+ * redistribute it and/or modify it under the terms of the GNU General Public
+ * License as published by the Free Software Foundation, version 2.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
+ * details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+
+#include "inspircd.h"
+
+
+/** Reference table, contains all current handlers
+ **/
+std::vector<EventHandler*> SocketEngine::ref;
+
+/** Current number of descriptors in the engine
+ */
+size_t SocketEngine::CurrentSetSize = 0;
+
+/** List of handlers that want a trial read/write
+ */
+std::set<int> SocketEngine::trials;
+
+int SocketEngine::MAX_DESCRIPTORS;
+
+/** Socket engine statistics: count of various events, bandwidth usage
+ */
+SocketEngine::Statistics SocketEngine::stats;
+
+EventHandler::EventHandler()
+{
+ fd = -1;
+ event_mask = 0;
+}
+
+void EventHandler::SetFd(int FD)
+{
+ this->fd = FD;
+}
+
+void SocketEngine::ChangeEventMask(EventHandler* eh, int change)
+{
+ int old_m = eh->event_mask;
+ int new_m = old_m;
+
+ // if we are changing read/write type, remove the previously set bit
+ if (change & FD_WANT_READ_MASK)
+ new_m &= ~FD_WANT_READ_MASK;
+ if (change & FD_WANT_WRITE_MASK)
+ new_m &= ~FD_WANT_WRITE_MASK;
+
+ // if adding a trial read/write, insert it into the set
+ if (change & FD_TRIAL_NOTE_MASK && !(old_m & FD_TRIAL_NOTE_MASK))
+ trials.insert(eh->GetFd());
+
+ new_m |= change;
+ if (new_m == old_m)
+ return;
+
+ eh->event_mask = new_m;
+ OnSetEvent(eh, old_m, new_m);
+}
+
+void SocketEngine::DispatchTrialWrites()
+{
+ std::vector<int> working_list;
+ working_list.reserve(trials.size());
+ working_list.assign(trials.begin(), trials.end());
+ trials.clear();
+ for(unsigned int i=0; i < working_list.size(); i++)
+ {
+ int fd = working_list[i];
+ EventHandler* eh = GetRef(fd);
+ if (!eh)
+ continue;
+ int mask = eh->event_mask;
+ eh->event_mask &= ~(FD_ADD_TRIAL_READ | FD_ADD_TRIAL_WRITE);
+ if ((mask & (FD_ADD_TRIAL_READ | FD_READ_WILL_BLOCK)) == FD_ADD_TRIAL_READ)
+ eh->HandleEvent(EVENT_READ, 0);
+ if ((mask & (FD_ADD_TRIAL_WRITE | FD_WRITE_WILL_BLOCK)) == FD_ADD_TRIAL_WRITE)
+ eh->HandleEvent(EVENT_WRITE, 0);
+ }
+}
+
+bool SocketEngine::AddFdRef(EventHandler* eh)
+{
+ int fd = eh->GetFd();
+ if (HasFd(fd))
+ return false;
+
+ while (static_cast<unsigned int>(fd) >= ref.size())
+ ref.resize(ref.empty() ? 1 : (ref.size() * 2));
+ ref[fd] = eh;
+ CurrentSetSize++;
+ return true;
+}
+
+void SocketEngine::DelFdRef(EventHandler *eh)
+{
+ int fd = eh->GetFd();
+ if (GetRef(fd) == eh)
+ {
+ ref[fd] = NULL;
+ CurrentSetSize--;
+ }
+}
+
+bool SocketEngine::HasFd(int fd)
+{
+ return GetRef(fd) != NULL;
+}
+
+EventHandler* SocketEngine::GetRef(int fd)
+{
+ if (fd < 0 || static_cast<unsigned int>(fd) >= ref.size())
+ return NULL;
+ return ref[fd];
+}
+
+bool SocketEngine::BoundsCheckFd(EventHandler* eh)
+{
+ if (!eh)
+ return false;
+ if (eh->GetFd() < 0)
+ return false;
+ return true;
+}
+
+
+int SocketEngine::Accept(EventHandler* fd, sockaddr *addr, socklen_t *addrlen)
+{
+ return accept(fd->GetFd(), addr, addrlen);
+}
+
+int SocketEngine::Close(EventHandler* eh)
+{
+ DelFd(eh);
+ int ret = Close(eh->GetFd());
+ eh->SetFd(-1);
+ return ret;
+}
+
+int SocketEngine::Close(int fd)
+{
+#ifdef _WIN32
+ return closesocket(fd);
+#else
+ return close(fd);
+#endif
+}
+
+int SocketEngine::Blocking(int fd)
+{
+#ifdef _WIN32
+ unsigned long opt = 0;
+ return ioctlsocket(fd, FIONBIO, &opt);
+#else
+ int flags = fcntl(fd, F_GETFL, 0);
+ return fcntl(fd, F_SETFL, flags & ~O_NONBLOCK);
+#endif
+}
+
+int SocketEngine::NonBlocking(int fd)
+{
+#ifdef _WIN32
+ unsigned long opt = 1;
+ return ioctlsocket(fd, FIONBIO, &opt);
+#else
+ int flags = fcntl(fd, F_GETFL, 0);
+ return fcntl(fd, F_SETFL, flags | O_NONBLOCK);
+#endif
+}
+
+void SocketEngine::SetReuse(int fd)
+{
+ int on = 1;
+ setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (char*)&on, sizeof(on));
+}
+
+int SocketEngine::RecvFrom(EventHandler* fd, void *buf, size_t len, int flags, sockaddr *from, socklen_t *fromlen)
+{
+ int nbRecvd = recvfrom(fd->GetFd(), (char*)buf, len, flags, from, fromlen);
+ if (nbRecvd > 0)
+ stats.Update(nbRecvd, 0);
+ return nbRecvd;
+}
+
+int SocketEngine::Send(EventHandler* fd, const void *buf, size_t len, int flags)
+{
+ int nbSent = send(fd->GetFd(), (const char*)buf, len, flags);
+ if (nbSent > 0)
+ stats.Update(0, nbSent);
+ return nbSent;
+}
+
+int SocketEngine::Recv(EventHandler* fd, void *buf, size_t len, int flags)
+{
+ int nbRecvd = recv(fd->GetFd(), (char*)buf, len, flags);
+ if (nbRecvd > 0)
+ stats.Update(nbRecvd, 0);
+ return nbRecvd;
+}
+
+int SocketEngine::SendTo(EventHandler* fd, const void *buf, size_t len, int flags, const sockaddr *to, socklen_t tolen)
+{
+ int nbSent = sendto(fd->GetFd(), (const char*)buf, len, flags, to, tolen);
+ if (nbSent > 0)
+ stats.Update(0, nbSent);
+ return nbSent;
+}
+
+int SocketEngine::WriteV(EventHandler* fd, const IOVector* iovec, int count)
+{
+ int sent = writev(fd->GetFd(), iovec, count);
+ if (sent > 0)
+ stats.Update(0, sent);
+ return sent;
+}
+
+#ifdef _WIN32
+int SocketEngine::WriteV(EventHandler* fd, const iovec* iovec, int count)
+{
+ // On Windows the fields in iovec are not in the order required by the Winsock API; IOVector has
+ // the fields in the correct order.
+ // Create temporary IOVectors from the iovecs and pass them to the WriteV() method that accepts the
+ // platform's native struct.
+ IOVector wiovec[128];
+ count = std::min(count, static_cast<int>(sizeof(wiovec) / sizeof(IOVector)));
+
+ for (int i = 0; i < count; i++)
+ {
+ wiovec[i].iov_len = iovec[i].iov_len;
+ wiovec[i].iov_base = reinterpret_cast<char*>(iovec[i].iov_base);
+ }
+ return WriteV(fd, wiovec, count);
+}
+#endif
+
+int SocketEngine::Connect(EventHandler* fd, const sockaddr *serv_addr, socklen_t addrlen)
+{
+ int ret = connect(fd->GetFd(), serv_addr, addrlen);
+#ifdef _WIN32
+ if ((ret == SOCKET_ERROR) && (WSAGetLastError() == WSAEWOULDBLOCK))
+ errno = EINPROGRESS;
+#endif
+ return ret;
+}
+
+int SocketEngine::Shutdown(EventHandler* fd, int how)
+{
+ return shutdown(fd->GetFd(), how);
+}
+
+int SocketEngine::Bind(int fd, const irc::sockets::sockaddrs& addr)
+{
+ return bind(fd, &addr.sa, addr.sa_size());
+}
+
+int SocketEngine::Listen(int sockfd, int backlog)
+{
+ return listen(sockfd, backlog);
+}
+
+int SocketEngine::Shutdown(int fd, int how)
+{
+ return shutdown(fd, how);
+}
+
+void SocketEngine::Statistics::Update(size_t len_in, size_t len_out)
+{
+ CheckFlush();
+ indata += len_in;
+ outdata += len_out;
+}
+
+void SocketEngine::Statistics::CheckFlush() const
+{
+ // Reset the in/out byte counters if it has been more than a second
+ time_t now = ServerInstance->Time();
+ if (lastempty != now)
+ {
+ lastempty = now;
+ indata = outdata = 0;
+ }
+}
+
+void SocketEngine::Statistics::GetBandwidth(float& kbitpersec_in, float& kbitpersec_out, float& kbitpersec_total) const
+{
+ CheckFlush();
+ float in_kbit = indata * 8;
+ float out_kbit = outdata * 8;
+ kbitpersec_total = ((in_kbit + out_kbit) / 1024);
+ kbitpersec_in = in_kbit / 1024;
+ kbitpersec_out = out_kbit / 1024;
+}
+
+std::string SocketEngine::LastError()
+{
+#ifndef _WIN32
+ return strerror(errno);
+#else
+ char szErrorString[500];
+ DWORD dwErrorCode = WSAGetLastError();
+ if (FormatMessageA(FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS, NULL, dwErrorCode, MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), (LPSTR)szErrorString, _countof(szErrorString), NULL) == 0)
+ sprintf_s(szErrorString, _countof(szErrorString), "Error code: %u", dwErrorCode);
+
+ std::string::size_type p;
+ std::string ret = szErrorString;
+ while ((p = ret.find_last_of("\r\n")) != std::string::npos)
+ ret.erase(p, 1);
+
+ return ret;
+#endif
+}
+
+std::string SocketEngine::GetError(int errnum)
+{
+#ifndef _WIN32
+ return strerror(errnum);
+#else
+ WSASetLastError(errnum);
+ return LastError();
+#endif
+}
projects / user / henk / code / inspircd.git / blobdiff