X-Git-Url: https://git.netwichtig.de/gitweb/?a=blobdiff_plain;f=src%2Fsocketengine.cpp;h=c6c520efcd12501212dabdddca8cd930e528076b;hb=30fec322809582f91be70cc1bb16c9678180db76;hp=b442732f5cc0af4fa9a65264c5a64bd913d0fdf8;hpb=800f02e7599d5f90d1c16f02cb1c28901d354140;p=user%2Fhenk%2Fcode%2Finspircd.git diff --git a/src/socketengine.cpp b/src/socketengine.cpp index b442732f5..c6c520efc 100644 --- a/src/socketengine.cpp +++ b/src/socketengine.cpp @@ -1,21 +1,51 @@ -/* +------------------------------------+ - * | Inspire Internet Relay Chat Daemon | - * +------------------------------------+ +/* + * InspIRCd -- Internet Relay Chat Daemon * - * InspIRCd: (C) 2002-2009 InspIRCd Development Team - * See: http://wiki.inspircd.org/Credits + * Copyright (C) 2009 Daniel De Graaf + * Copyright (C) 2008 Robin Burchell + * Copyright (C) 2005-2008 Craig Edwards + * Copyright (C) 2007 Burlex + * Copyright (C) 2007 Dennis Friis * - * This program is free but copyrighted software; see - * the file COPYING for details. + * 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 . */ + #include "inspircd.h" + +/** Reference table, contains all current handlers + **/ +std::vector 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 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) @@ -23,22 +53,6 @@ void EventHandler::SetFd(int FD) this->fd = FD; } -SocketEngine::SocketEngine() -{ - TotalEvents = WriteEvents = ReadEvents = ErrorEvents = 0; - lastempty = ServerInstance->Time(); - indata = outdata = 0; -} - -SocketEngine::~SocketEngine() -{ -} - -void SocketEngine::SetEventMask(EventHandler* eh, int mask) -{ - eh->event_mask = mask; -} - void SocketEngine::ChangeEventMask(EventHandler* eh, int change) { int old_m = eh->event_mask; @@ -49,7 +63,7 @@ void SocketEngine::ChangeEventMask(EventHandler* eh, int change) 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()); @@ -83,17 +97,38 @@ void SocketEngine::DispatchTrialWrites() } } -bool SocketEngine::HasFd(int fd) +bool SocketEngine::AddFdRef(EventHandler* eh) { - if ((fd < 0) || (fd > GetMaxFds())) + int fd = eh->GetFd(); + if (HasFd(fd)) return false; - return ref[fd]; + + while (static_cast(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) || (fd > GetMaxFds())) - return 0; + if (fd < 0 || static_cast(fd) >= ref.size()) + return NULL; return ref[fd]; } @@ -101,7 +136,7 @@ bool SocketEngine::BoundsCheckFd(EventHandler* eh) { if (!eh) return false; - if ((eh->GetFd() < 0) || (eh->GetFd() > GetMaxFds())) + if (eh->GetFd() < 0) return false; return true; } @@ -112,18 +147,17 @@ int SocketEngine::Accept(EventHandler* fd, sockaddr *addr, socklen_t *addrlen) return accept(fd->GetFd(), addr, addrlen); } -int SocketEngine::Close(EventHandler* fd) +int SocketEngine::Close(EventHandler* eh) { -#ifdef WINDOWS - return closesocket(fd->GetFd()); -#else - return close(fd->GetFd()); -#endif + DelFd(eh); + int ret = Close(eh->GetFd()); + eh->SetFd(-1); + return ret; } int SocketEngine::Close(int fd) { -#ifdef WINDOWS +#ifdef _WIN32 return closesocket(fd); #else return close(fd); @@ -132,7 +166,7 @@ int SocketEngine::Close(int fd) int SocketEngine::Blocking(int fd) { -#ifdef WINDOWS +#ifdef _WIN32 unsigned long opt = 0; return ioctlsocket(fd, FIONBIO, &opt); #else @@ -143,7 +177,7 @@ int SocketEngine::Blocking(int fd) int SocketEngine::NonBlocking(int fd) { -#ifdef WINDOWS +#ifdef _WIN32 unsigned long opt = 1; return ioctlsocket(fd, FIONBIO, &opt); #else @@ -155,41 +189,49 @@ int SocketEngine::NonBlocking(int fd) void SocketEngine::SetReuse(int fd) { int on = 1; - struct linger linger = { 0, 0 }; setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (char*)&on, sizeof(on)); - /* This is BSD compatible, setting l_onoff to 0 is *NOT* http://web.irc.org/mla/ircd-dev/msg02259.html */ - linger.l_onoff = 1; - linger.l_linger = 1; - setsockopt(fd, SOL_SOCKET, SO_LINGER, (char*)&linger, sizeof(linger)); } int SocketEngine::RecvFrom(EventHandler* fd, void *buf, size_t len, int flags, sockaddr *from, socklen_t *fromlen) { - this->UpdateStats(len, 0); - return recvfrom(fd->GetFd(), (char*)buf, len, flags, from, 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) { - this->UpdateStats(0, len); - return send(fd->GetFd(), (char*)buf, len, 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) { - this->UpdateStats(len, 0); - return recv(fd->GetFd(), (char*)buf, len, 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) { - this->UpdateStats(0, len); - return sendto(fd->GetFd(), (char*)buf, len, flags, to, tolen); + int nbSent = sendto(fd->GetFd(), (const char*)buf, len, flags, to, tolen); + if (nbSent > 0) + stats.Update(0, nbSent); + return nbSent; } int SocketEngine::Connect(EventHandler* fd, const sockaddr *serv_addr, socklen_t addrlen) { - return connect(fd->GetFd(), serv_addr, 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) @@ -212,27 +254,53 @@ int SocketEngine::Shutdown(int fd, int how) return shutdown(fd, how); } -void SocketEngine::RecoverFromFork() +void SocketEngine::Statistics::Update(size_t len_in, size_t len_out) { + CheckFlush(); + indata += len_in; + outdata += len_out; } -void SocketEngine::UpdateStats(size_t len_in, size_t len_out) +void SocketEngine::Statistics::CheckFlush() const { - if (lastempty != ServerInstance->Time()) + // Reset the in/out byte counters if it has been more than a second + time_t now = ServerInstance->Time(); + if (lastempty != now) { - lastempty = ServerInstance->Time(); + lastempty = now; indata = outdata = 0; } - indata += len_in; - outdata += len_out; } -void SocketEngine::GetStats(float &kbitpersec_in, float &kbitpersec_out, float &kbitpersec_total) +void SocketEngine::Statistics::GetBandwidth(float& kbitpersec_in, float& kbitpersec_out, float& kbitpersec_total) const { - UpdateStats(0, 0); /* Forces emptying of the values if its been more than a second */ + 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); + return szErrorString; +#endif +} + +std::string SocketEngine::GetError(int errnum) +{ +#ifndef _WIN32 + return strerror(errnum); +#else + WSASetLastError(errnum); + return LastError(); +#endif +}