X-Git-Url: https://git.netwichtig.de/gitweb/?a=blobdiff_plain;f=src%2Fsocketengines%2Fsocketengine_ports.cpp;h=74c36712bad0213e786288a68a79c55c593fb414;hb=ed6176383eef5de23a62c7de70b58b8d80239005;hp=5efa545b0563fa0a165d2662552ec669ecd608ac;hpb=b6dbd6caab62bc2c0d11ce5a45d511611eb9c2ef;p=user%2Fhenk%2Fcode%2Finspircd.git diff --git a/src/socketengines/socketengine_ports.cpp b/src/socketengines/socketengine_ports.cpp index 5efa545b0..74c36712b 100644 --- a/src/socketengines/socketengine_ports.cpp +++ b/src/socketengines/socketengine_ports.cpp @@ -1,112 +1,139 @@ -/* +------------------------------------+ - * | 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) 2007-2008 Craig Edwards * - * 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" #include "exitcodes.h" + +#ifndef __sun +# error You need Solaris 10 or later to make use of this code. +#endif + +#include +#include +#include +#include "inspircd.h" +#include "socketengine.h" #include -#include "socketengines/socketengine_ports.h" +#include #include -PortsEngine::PortsEngine(InspIRCd* Instance) : SocketEngine(Instance) +/** A specialisation of the SocketEngine class, designed to use solaris 10 I/O completion ports + */ +class PortsEngine : public SocketEngine { - MAX_DESCRIPTORS = 0; +private: + /** These are used by ports to hold socket events + */ + std::vector events; + int EngineHandle; +public: + /** Create a new PortsEngine + */ + PortsEngine(); + /** Delete a PortsEngine + */ + virtual ~PortsEngine(); + virtual bool AddFd(EventHandler* eh, int event_mask); + virtual void OnSetEvent(EventHandler* eh, int old_mask, int new_mask); + virtual void DelFd(EventHandler* eh); + virtual int DispatchEvents(); +}; + +PortsEngine::PortsEngine() : events(1) +{ + int max = ulimit(4, 0); + if (max > 0) + { + MAX_DESCRIPTORS = max; + } + else + { + ServerInstance->Logs->Log("SOCKET", LOG_DEFAULT, "ERROR: Can't determine maximum number of open sockets!"); + std::cout << "ERROR: Can't determine maximum number of open sockets!" << std::endl; + ServerInstance->QuickExit(EXIT_STATUS_SOCKETENGINE); + } EngineHandle = port_create(); if (EngineHandle == -1) { - ServerInstance->Logs->Log("SOCKET",SPARSE,"ERROR: Could not initialize socket engine: %s", strerror(errno)); - ServerInstance->Logs->Log("SOCKET",SPARSE,"ERROR: This is a fatal error, exiting now."); - printf("ERROR: Could not initialize socket engine: %s\n", strerror(errno)); - printf("ERROR: This is a fatal error, exiting now.\n"); - ServerInstance->Exit(EXIT_STATUS_SOCKETENGINE); + ServerInstance->Logs->Log("SOCKET", LOG_SPARSE, "ERROR: Could not initialize socket engine: %s", strerror(errno)); + ServerInstance->Logs->Log("SOCKET", LOG_SPARSE, "ERROR: This is a fatal error, exiting now."); + std::cout << "ERROR: Could not initialize socket engine: " << strerror(errno) << std::endl; + std::cout << "ERROR: This is a fatal error, exiting now." << std::endl; + ServerInstance->QuickExit(EXIT_STATUS_SOCKETENGINE); } CurrentSetSize = 0; - - ref = new EventHandler* [GetMaxFds()]; - events = new port_event_t[GetMaxFds()]; - memset(ref, 0, GetMaxFds() * sizeof(EventHandler*)); } PortsEngine::~PortsEngine() { this->Close(EngineHandle); - delete[] ref; - delete[] events; } -bool PortsEngine::AddFd(EventHandler* eh) +static int mask_to_events(int event_mask) +{ + int rv = 0; + if (event_mask & (FD_WANT_POLL_READ | FD_WANT_FAST_READ)) + rv |= POLLRDNORM; + if (event_mask & (FD_WANT_POLL_WRITE | FD_WANT_FAST_WRITE | FD_WANT_SINGLE_WRITE)) + rv |= POLLWRNORM; + return rv; +} + +bool PortsEngine::AddFd(EventHandler* eh, int event_mask) { int fd = eh->GetFd(); if ((fd < 0) || (fd > GetMaxFds() - 1)) return false; - if (GetRemainingFds() <= 1) + if (!SocketEngine::AddFd(eh)) return false; - if (ref[fd]) - return false; + SocketEngine::SetEventMask(eh, event_mask); + port_associate(EngineHandle, PORT_SOURCE_FD, fd, mask_to_events(event_mask), eh); - ref[fd] = eh; - port_associate(EngineHandle, PORT_SOURCE_FD, fd, eh->Readable() ? POLLRDNORM : POLLWRNORM, eh); - - ServerInstance->Logs->Log("SOCKET",DEBUG,"New file descriptor: %d", fd); + ServerInstance->Logs->Log("SOCKET", LOG_DEBUG, "New file descriptor: %d", fd); CurrentSetSize++; + ResizeDouble(events); + return true; } -void PortsEngine::WantWrite(EventHandler* eh) +void PortsEngine::OnSetEvent(EventHandler* eh, int old_mask, int new_mask) { - port_associate(EngineHandle, PORT_SOURCE_FD, eh->GetFd(), POLLRDNORM | POLLWRNORM, eh); + if (mask_to_events(new_mask) != mask_to_events(old_mask)) + port_associate(EngineHandle, PORT_SOURCE_FD, eh->GetFd(), mask_to_events(new_mask), eh); } -bool PortsEngine::DelFd(EventHandler* eh, bool force) +void PortsEngine::DelFd(EventHandler* eh) { int fd = eh->GetFd(); if ((fd < 0) || (fd > GetMaxFds() - 1)) - return false; + return; port_dissociate(EngineHandle, PORT_SOURCE_FD, fd); CurrentSetSize--; - ref[fd] = NULL; + SocketEngine::DelFd(eh); - ServerInstance->Logs->Log("SOCKET",DEBUG,"Remove file descriptor: %d", fd); - return true; -} - -int PortsEngine::GetMaxFds() -{ - if (MAX_DESCRIPTORS) - return MAX_DESCRIPTORS; - - int max = ulimit(4, 0); - if (max > 0) - { - MAX_DESCRIPTORS = max; - return max; - } - else - { - ServerInstance->Logs->Log("SOCKET", DEFAULT, "ERROR: Can't determine maximum number of open sockets!"); - printf("ERROR: Can't determine maximum number of open sockets!\n"); - ServerInstance->Exit(EXIT_STATUS_SOCKETENGINE); - } -#include -} - -int PortsEngine::GetRemainingFds() -{ - return GetMaxFds() - CurrentSetSize; + ServerInstance->Logs->Log("SOCKET", LOG_DEBUG, "Remove file descriptor: %d", fd); } int PortsEngine::DispatchEvents() @@ -117,42 +144,56 @@ int PortsEngine::DispatchEvents() poll_time.tv_nsec = 0; unsigned int nget = 1; // used to denote a retrieve request. - int i = port_getn(EngineHandle, this->events, GetMaxFds() - 1, &nget, &poll_time); + int ret = port_getn(EngineHandle, &events[0], events.size(), &nget, &poll_time); + ServerInstance->UpdateTime(); // first handle an error condition - if (i == -1) - return i; + if (ret == -1) + return -1; TotalEvents += nget; + unsigned int i; for (i = 0; i < nget; i++) { - switch (this->events[i].portev_source) + port_event_t& ev = events[i]; + + if (ev.portev_source != PORT_SOURCE_FD) + continue; + + // Copy these in case the vector gets resized and ev invalidated + const int fd = ev.portev_object; + const int portev_events = ev.portev_events; + EventHandler* eh = GetRef(fd); + if (!eh) + continue; + + int mask = eh->GetEventMask(); + if (portev_events & POLLWRNORM) + mask &= ~(FD_WRITE_WILL_BLOCK | FD_WANT_FAST_WRITE | FD_WANT_SINGLE_WRITE); + if (portev_events & POLLRDNORM) + mask &= ~FD_READ_WILL_BLOCK; + // reinsert port for next time around, pretending to be one-shot for writes + SetEventMask(eh, mask); + port_associate(EngineHandle, PORT_SOURCE_FD, fd, mask_to_events(mask), eh); + if (portev_events & POLLRDNORM) { - case PORT_SOURCE_FD: - { - int fd = this->events[i].portev_object; - if (ref[fd]) - { - // reinsert port for next time around - port_associate(EngineHandle, PORT_SOURCE_FD, fd, POLLRDNORM, ref[fd]); - if ((this->events[i].portev_events & POLLRDNORM)) - ReadEvents++; - else - WriteEvents++; - ref[fd]->HandleEvent((this->events[i].portev_events & POLLRDNORM) ? EVENT_READ : EVENT_WRITE); - } - } - default: - break; + ReadEvents++; + eh->HandleEvent(EVENT_READ); + if (eh != GetRef(fd)) + continue; + } + if (portev_events & POLLWRNORM) + { + WriteEvents++; + eh->HandleEvent(EVENT_WRITE); } } - return i; + return (int)i; } -std::string PortsEngine::GetName() +SocketEngine* CreateSocketEngine() { - return "ports"; + return new PortsEngine; } -