2 * InspIRCd -- Internet Relay Chat Daemon
4 * Copyright (C) 2009 Daniel De Graaf <danieldg@inspircd.org>
5 * Copyright (C) 2007-2008 Craig Edwards <craigedwards@brainbox.cc>
7 * This file is part of InspIRCd. InspIRCd is free software: you can
8 * redistribute it and/or modify it under the terms of the GNU General Public
9 * License as published by the Free Software Foundation, version 2.
11 * This program is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
13 * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
16 * You should have received a copy of the GNU General Public License
17 * along with this program. If not, see <http://www.gnu.org/licenses/>.
22 #include "exitcodes.h"
25 #ifndef SOCKETENGINE_PORTS
26 #define SOCKETENGINE_PORTS
29 # error You need Solaris 10 or later to make use of this code.
35 #include "inspircd_config.h"
37 #include "socketengine.h"
41 /** A specialisation of the SocketEngine class, designed to use solaris 10 I/O completion ports
43 class PortsEngine : public SocketEngine
46 /** These are used by epoll() to hold socket events
51 /** Create a new PortsEngine
54 /** Delete a PortsEngine
56 virtual ~PortsEngine();
57 virtual bool AddFd(EventHandler* eh, int event_mask);
58 virtual void OnSetEvent(EventHandler* eh, int old_mask, int new_mask);
59 virtual void DelFd(EventHandler* eh);
60 virtual int DispatchEvents();
61 virtual std::string GetName();
69 PortsEngine::PortsEngine()
71 int max = ulimit(4, 0);
74 MAX_DESCRIPTORS = max;
78 ServerInstance->Logs->Log("SOCKET", DEFAULT, "ERROR: Can't determine maximum number of open sockets!");
79 std::cout << "ERROR: Can't determine maximum number of open sockets!" << std::endl;
80 ServerInstance->QuickExit(EXIT_STATUS_SOCKETENGINE);
82 EngineHandle = port_create();
84 if (EngineHandle == -1)
86 ServerInstance->Logs->Log("SOCKET",SPARSE,"ERROR: Could not initialize socket engine: %s", strerror(errno));
87 ServerInstance->Logs->Log("SOCKET",SPARSE,"ERROR: This is a fatal error, exiting now.");
88 std::cout << "ERROR: Could not initialize socket engine: " << strerror(errno) << std::endl;
89 std::cout << "ERROR: This is a fatal error, exiting now." << std::endl;
90 ServerInstance->QuickExit(EXIT_STATUS_SOCKETENGINE);
94 ref = new EventHandler* [GetMaxFds()];
95 events = new port_event_t[GetMaxFds()];
96 memset(ref, 0, GetMaxFds() * sizeof(EventHandler*));
99 PortsEngine::~PortsEngine()
101 this->Close(EngineHandle);
106 static int mask_to_events(int event_mask)
109 if (event_mask & (FD_WANT_POLL_READ | FD_WANT_FAST_READ))
111 if (event_mask & (FD_WANT_POLL_WRITE | FD_WANT_FAST_WRITE | FD_WANT_SINGLE_WRITE))
116 bool PortsEngine::AddFd(EventHandler* eh, int event_mask)
118 int fd = eh->GetFd();
119 if ((fd < 0) || (fd > GetMaxFds() - 1))
126 SocketEngine::SetEventMask(eh, event_mask);
127 port_associate(EngineHandle, PORT_SOURCE_FD, fd, mask_to_events(event_mask), eh);
129 ServerInstance->Logs->Log("SOCKET",DEBUG,"New file descriptor: %d", fd);
134 void PortsEngine::OnSetEvent(EventHandler* eh, int old_mask, int new_mask)
136 if (mask_to_events(new_mask) != mask_to_events(old_mask))
137 port_associate(EngineHandle, PORT_SOURCE_FD, eh->GetFd(), mask_to_events(new_mask), eh);
140 void PortsEngine::DelFd(EventHandler* eh)
142 int fd = eh->GetFd();
143 if ((fd < 0) || (fd > GetMaxFds() - 1))
146 port_dissociate(EngineHandle, PORT_SOURCE_FD, fd);
151 ServerInstance->Logs->Log("SOCKET",DEBUG,"Remove file descriptor: %d", fd);
154 int PortsEngine::DispatchEvents()
156 struct timespec poll_time;
158 poll_time.tv_sec = 1;
159 poll_time.tv_nsec = 0;
161 unsigned int nget = 1; // used to denote a retrieve request.
162 int ret = port_getn(EngineHandle, this->events, GetMaxFds() - 1, &nget, &poll_time);
163 ServerInstance->UpdateTime();
165 // first handle an error condition
172 for (i = 0; i < nget; i++)
174 switch (this->events[i].portev_source)
178 int fd = this->events[i].portev_object;
179 EventHandler* eh = ref[fd];
182 int mask = eh->GetEventMask();
183 if (events[i].portev_events & POLLWRNORM)
184 mask &= ~(FD_WRITE_WILL_BLOCK | FD_WANT_FAST_WRITE | FD_WANT_SINGLE_WRITE);
185 if (events[i].portev_events & POLLRDNORM)
186 mask &= ~FD_READ_WILL_BLOCK;
187 // reinsert port for next time around, pretending to be one-shot for writes
188 SetEventMask(eh, mask);
189 port_associate(EngineHandle, PORT_SOURCE_FD, fd, mask_to_events(mask), eh);
190 if (events[i].portev_events & POLLRDNORM)
193 eh->HandleEvent(EVENT_READ);
197 if (events[i].portev_events & POLLWRNORM)
200 eh->HandleEvent(EVENT_WRITE);
212 std::string PortsEngine::GetName()
217 SocketEngine* CreateSocketEngine()
219 return new PortsEngine;