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 // MAX_DESCRIPTORS is mainly used for display purposes, no problem if ulimit() fails and returns a negative number
52 MAX_DESCRIPTORS = ulimit(4, 0);
54 EngineHandle = port_create();
56 if (EngineHandle == -1)
58 ServerInstance->Logs->Log("SOCKET", LOG_SPARSE, "ERROR: Could not initialize socket engine: %s", strerror(errno));
59 ServerInstance->Logs->Log("SOCKET", LOG_SPARSE, "ERROR: This is a fatal error, exiting now.");
60 std::cout << "ERROR: Could not initialize socket engine: " << strerror(errno) << std::endl;
61 std::cout << "ERROR: This is a fatal error, exiting now." << std::endl;
62 ServerInstance->QuickExit(EXIT_STATUS_SOCKETENGINE);
66 /** Shutdown the ports engine
68 void SocketEngine::Deinit()
70 SocketEngine::Close(EngineHandle);
73 void SocketEngine::RecoverFromFork()
77 static int mask_to_events(int event_mask)
80 if (event_mask & (FD_WANT_POLL_READ | FD_WANT_FAST_READ))
82 if (event_mask & (FD_WANT_POLL_WRITE | FD_WANT_FAST_WRITE | FD_WANT_SINGLE_WRITE))
87 bool SocketEngine::AddFd(EventHandler* eh, int event_mask)
93 if (!SocketEngine::AddFdRef(eh))
96 eh->SetEventMask(event_mask);
97 port_associate(EngineHandle, PORT_SOURCE_FD, fd, mask_to_events(event_mask), eh);
99 ServerInstance->Logs->Log("SOCKET", LOG_DEBUG, "New file descriptor: %d", fd);
100 ResizeDouble(events);
105 void SocketEngine::OnSetEvent(EventHandler* eh, int old_mask, int new_mask)
107 if (mask_to_events(new_mask) != mask_to_events(old_mask))
108 port_associate(EngineHandle, PORT_SOURCE_FD, eh->GetFd(), mask_to_events(new_mask), eh);
111 void SocketEngine::DelFd(EventHandler* eh)
113 int fd = eh->GetFd();
117 port_dissociate(EngineHandle, PORT_SOURCE_FD, fd);
119 SocketEngine::DelFdRef(eh);
121 ServerInstance->Logs->Log("SOCKET", LOG_DEBUG, "Remove file descriptor: %d", fd);
124 int SocketEngine::DispatchEvents()
126 struct timespec poll_time;
128 poll_time.tv_sec = 1;
129 poll_time.tv_nsec = 0;
131 unsigned int nget = 1; // used to denote a retrieve request.
132 int ret = port_getn(EngineHandle, &events[0], events.size(), &nget, &poll_time);
133 ServerInstance->UpdateTime();
135 // first handle an error condition
139 stats.TotalEvents += nget;
142 for (i = 0; i < nget; i++)
144 port_event_t& ev = events[i];
146 if (ev.portev_source != PORT_SOURCE_FD)
149 // Copy these in case the vector gets resized and ev invalidated
150 const int fd = ev.portev_object;
151 const int portev_events = ev.portev_events;
152 EventHandler* eh = static_cast<EventHandler*>(ev.portev_user);
156 int mask = eh->GetEventMask();
157 if (portev_events & POLLWRNORM)
158 mask &= ~(FD_WRITE_WILL_BLOCK | FD_WANT_FAST_WRITE | FD_WANT_SINGLE_WRITE);
159 if (portev_events & POLLRDNORM)
160 mask &= ~FD_READ_WILL_BLOCK;
161 // reinsert port for next time around, pretending to be one-shot for writes
162 eh->SetEventMask(mask);
163 port_associate(EngineHandle, PORT_SOURCE_FD, fd, mask_to_events(mask), eh);
164 if (portev_events & POLLRDNORM)
167 eh->HandleEvent(EVENT_READ);
168 if (eh != GetRef(fd))
171 if (portev_events & POLLWRNORM)
174 eh->HandleEvent(EVENT_WRITE);