-/* +------------------------------------+
- * | 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 <danieldg@inspircd.org>
+ * Copyright (C) 2009 Uli Schlachter <psychon@znc.in>
+ * Copyright (C) 2009 Craig Edwards <craigedwards@brainbox.cc>
+ * Copyright (C) 2008 Robin Burchell <robin+git@viroteck.net>
*
- * 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 <http://www.gnu.org/licenses/>.
*/
+
#include "inspircd.h"
#include "exitcodes.h"
-#include "socketengines/socketengine_poll.h"
-#include <ulimit.h>
-#ifdef __FreeBSD__
- #include <sys/sysctl.h>
+
+#ifndef SOCKETENGINE_POLL
+#define SOCKETENGINE_POLL
+
+#include <iostream>
+#include <vector>
+#include <string>
+#include <map>
+#include "inspircd_config.h"
+#include "inspircd.h"
+#include "socketengine.h"
+
+#ifndef _WIN32
+# ifndef __USE_XOPEN
+# define __USE_XOPEN /* fuck every fucking OS ever made. needed by poll.h to work.*/
+# endif
+# include <poll.h>
+# include <sys/poll.h>
+# include <sys/resource.h>
+#else
+# define struct pollfd WSAPOLLFD
+# define poll WSAPoll
+#endif
+
+class InspIRCd;
+
+/** A specialisation of the SocketEngine class, designed to use poll().
+ */
+class PollEngine : public SocketEngine
+{
+private:
+ /** These are used by poll() to hold socket events
+ */
+ struct pollfd *events;
+ /** This map maps fds to an index in the events array.
+ */
+ std::map<int, unsigned int> fd_mappings;
+public:
+ /** Create a new PollEngine
+ */
+ PollEngine();
+ /** Delete a PollEngine
+ */
+ virtual ~PollEngine();
+ virtual bool AddFd(EventHandler* eh, int event_mask);
+ virtual void OnSetEvent(EventHandler* eh, int old_mask, int new_mask);
+ virtual EventHandler* GetRef(int fd);
+ virtual void DelFd(EventHandler* eh);
+ virtual int DispatchEvents();
+ virtual std::string GetName();
+};
+
#endif
PollEngine::PollEngine()
{
CurrentSetSize = 0;
-#ifndef __FreeBSD__
- int max = ulimit(4, 0);
- if (max > 0)
+ struct rlimit limits;
+ if (!getrlimit(RLIMIT_NOFILE, &limits))
{
- MAX_DESCRIPTORS = max;
+ MAX_DESCRIPTORS = limits.rlim_cur;
}
else
{
ServerInstance->Logs->Log("SOCKET", DEFAULT, "ERROR: Can't determine maximum number of open sockets: %s", strerror(errno));
- printf("ERROR: Can't determine maximum number of open sockets: %s\n", strerror(errno));
- ServerInstance->Exit(EXIT_STATUS_SOCKETENGINE);
+ std::cout << "ERROR: Can't determine maximum number of open sockets: " << strerror(errno) << std::endl;
+ ServerInstance->QuickExit(EXIT_STATUS_SOCKETENGINE);
}
-#else
- int mib[2];
- size_t len;
-
- mib[0] = CTL_KERN;
- mib[1] = KERN_MAXFILES;
- len = sizeof(MAX_DESCRIPTORS);
- sysctl(mib, 2, &MAX_DESCRIPTORS, &len, NULL, 0);
-#endif
ref = new EventHandler* [GetMaxFds()];
events = new struct pollfd[GetMaxFds()];
int rv = 0;
if (event_mask & (FD_WANT_POLL_READ | FD_WANT_FAST_READ))
rv |= POLLIN;
- if (event_mask & (FD_WANT_POLL_WRITE | FD_WANT_FAST_WRITE))
+ if (event_mask & (FD_WANT_POLL_WRITE | FD_WANT_FAST_WRITE | FD_WANT_SINGLE_WRITE))
rv |= POLLOUT;
return rv;
}
events[index].fd = fd;
events[index].events = mask_to_poll(event_mask);
- ServerInstance->Logs->Log("SOCKET", DEBUG,"New file descriptor: %d (%d; index %d)", fd, events[fd].events, index);
+ ServerInstance->Logs->Log("SOCKET", DEBUG,"New file descriptor: %d (%d; index %d)", fd, events[index].events, index);
SocketEngine::SetEventMask(eh, event_mask);
CurrentSetSize++;
return true;
events[it->second].events = mask_to_poll(new_mask);
}
-bool PollEngine::DelFd(EventHandler* eh, bool force)
+void PollEngine::DelFd(EventHandler* eh)
{
int fd = eh->GetFd();
if ((fd < 0) || (fd > MAX_DESCRIPTORS))
{
ServerInstance->Logs->Log("SOCKET", DEBUG, "DelFd out of range: (fd: %d, max: %d)", fd, GetMaxFds());
- return false;
+ return;
}
std::map<int, unsigned int>::iterator it = fd_mappings.find(fd);
if (it == fd_mappings.end())
{
ServerInstance->Logs->Log("SOCKET",DEBUG,"DelFd() on unknown fd: %d", fd);
- return false;
+ return;
}
unsigned int index = it->second;
ServerInstance->Logs->Log("SOCKET", DEBUG, "Remove file descriptor: %d (index: %d) "
"(Filled gap with: %d (index: %d))", fd, index, last_fd, last_index);
- return true;
}
int PollEngine::DispatchEvents()
socklen_t codesize = sizeof(int);
int errcode;
int processed = 0;
+ ServerInstance->UpdateTime();
if (i > 0)
{
{
SetEventMask(eh, eh->GetEventMask() & ~FD_READ_WILL_BLOCK);
eh->HandleEvent(EVENT_READ);
+ if (eh != ref[index])
+ // whoops, deleted out from under us
+ continue;
}
if (events[index].revents & POLLOUT)
{
- SetEventMask(eh, eh->GetEventMask() & ~FD_WRITE_WILL_BLOCK);
+ int mask = eh->GetEventMask();
+ mask &= ~(FD_WRITE_WILL_BLOCK | FD_WANT_SINGLE_WRITE);
+ SetEventMask(eh, mask);
+ events[index].events = mask_to_poll(mask);
eh->HandleEvent(EVENT_WRITE);
}
}
return "poll";
}
+SocketEngine* CreateSocketEngine()
+{
+ return new PollEngine;
+}
projects / user / henk / code / inspircd.git / blobdiff