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 # error You need Solaris 10 or later to make use of this code.
32 #include "socketengine.h"
37 /** A specialisation of the SocketEngine class, designed to use solaris 10 I/O completion ports
41 /** These are used by ports to hold socket events
43 std::vector<port_event_t> events(16);
47 /** Initialize ports engine
49 void SocketEngine::Init()
51 int max = ulimit(4, 0);
54 MAX_DESCRIPTORS = max;
58 ServerInstance->Logs->Log("SOCKET", LOG_DEFAULT, "ERROR: Can't determine maximum number of open sockets!");
59 std::cout << "ERROR: Can't determine maximum number of open sockets!" << std::endl;
60 ServerInstance->QuickExit(EXIT_STATUS_SOCKETENGINE);
62 EngineHandle = port_create();
64 if (EngineHandle == -1)
66 ServerInstance->Logs->Log("SOCKET", LOG_SPARSE, "ERROR: Could not initialize socket engine: %s", strerror(errno));
67 ServerInstance->Logs->Log("SOCKET", LOG_SPARSE, "ERROR: This is a fatal error, exiting now.");
68 std::cout << "ERROR: Could not initialize socket engine: " << strerror(errno) << std::endl;
69 std::cout << "ERROR: This is a fatal error, exiting now." << std::endl;
70 ServerInstance->QuickExit(EXIT_STATUS_SOCKETENGINE);
74 /** Shutdown the ports engine
76 void SocketEngine::Deinit()
78 SocketEngine::Close(EngineHandle);
81 void SocketEngine::RecoverFromFork()
85 static int mask_to_events(int event_mask)
88 if (event_mask & (FD_WANT_POLL_READ | FD_WANT_FAST_READ))
90 if (event_mask & (FD_WANT_POLL_WRITE | FD_WANT_FAST_WRITE | FD_WANT_SINGLE_WRITE))
95 bool SocketEngine::AddFd(EventHandler* eh, int event_mask)
98 if ((fd < 0) || (fd > GetMaxFds() - 1))
101 if (!SocketEngine::AddFdRef(eh))
104 eh->SetEventMask(event_mask);
105 port_associate(EngineHandle, PORT_SOURCE_FD, fd, mask_to_events(event_mask), eh);
107 ServerInstance->Logs->Log("SOCKET", LOG_DEBUG, "New file descriptor: %d", fd);
108 ResizeDouble(events);
113 void SocketEngine::OnSetEvent(EventHandler* eh, int old_mask, int new_mask)
115 if (mask_to_events(new_mask) != mask_to_events(old_mask))
116 port_associate(EngineHandle, PORT_SOURCE_FD, eh->GetFd(), mask_to_events(new_mask), eh);
119 void SocketEngine::DelFd(EventHandler* eh)
121 int fd = eh->GetFd();
122 if ((fd < 0) || (fd > GetMaxFds() - 1))
125 port_dissociate(EngineHandle, PORT_SOURCE_FD, fd);
127 SocketEngine::DelFdRef(eh);
129 ServerInstance->Logs->Log("SOCKET", LOG_DEBUG, "Remove file descriptor: %d", fd);
132 int SocketEngine::DispatchEvents()
134 struct timespec poll_time;
136 poll_time.tv_sec = 1;
137 poll_time.tv_nsec = 0;
139 unsigned int nget = 1; // used to denote a retrieve request.
140 int ret = port_getn(EngineHandle, &events[0], events.size(), &nget, &poll_time);
141 ServerInstance->UpdateTime();
143 // first handle an error condition
147 stats.TotalEvents += nget;
150 for (i = 0; i < nget; i++)
152 port_event_t& ev = events[i];
154 if (ev.portev_source != PORT_SOURCE_FD)
157 // Copy these in case the vector gets resized and ev invalidated
158 const int fd = ev.portev_object;
159 const int portev_events = ev.portev_events;
160 EventHandler* eh = static_cast<EventHandler*>(ev.portev_user);
164 int mask = eh->GetEventMask();
165 if (portev_events & POLLWRNORM)
166 mask &= ~(FD_WRITE_WILL_BLOCK | FD_WANT_FAST_WRITE | FD_WANT_SINGLE_WRITE);
167 if (portev_events & POLLRDNORM)
168 mask &= ~FD_READ_WILL_BLOCK;
169 // reinsert port for next time around, pretending to be one-shot for writes
170 eh->SetEventMask(mask);
171 port_associate(EngineHandle, PORT_SOURCE_FD, fd, mask_to_events(mask), eh);
172 if (portev_events & POLLRDNORM)
175 eh->HandleEvent(EVENT_READ);
176 if (eh != GetRef(fd))
179 if (portev_events & POLLWRNORM)
182 eh->HandleEvent(EVENT_WRITE);