-/* +------------------------------------+
- * | Inspire Internet Relay Chat Daemon |
- * +------------------------------------+
+/*
+ * InspIRCd -- Internet Relay Chat Daemon
*
- * Inspire is copyright (C) 2002-2006 ChatSpike-Dev.
- * E-mail:
- * <brain@chatspike.net>
- * <Craig@chatspike.net>
+ * Copyright (C) 2009 Daniel De Graaf <danieldg@inspircd.org>
+ * Copyright (C) 2008 Robin Burchell <robin+git@viroteck.net>
+ * Copyright (C) 2005-2008 Craig Edwards <craigedwards@brainbox.cc>
+ * Copyright (C) 2007 Burlex <???@???>
+ * Copyright (C) 2007 Dennis Friis <peavey@inspircd.org>
*
- * Written by Craig Edwards, Craig McLure, and others.
- * 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_config.h"
-#include "globals.h"
+
#include "inspircd.h"
-#ifdef USE_EPOLL
-#include <sys/epoll.h>
-#endif
-#ifdef USE_KQUEUE
-#include <sys/types.h>
-#include <sys/event.h>
-#include <sys/time.h>
-#endif
-#include <vector>
-#include <string>
-#include "socketengine.h"
-char ref[MAX_DESCRIPTORS];
-SocketEngine::SocketEngine()
+/** Reference table, contains all current handlers
+ **/
+std::vector<EventHandler*> SocketEngine::ref;
+
+/** Current number of descriptors in the engine
+ */
+size_t SocketEngine::CurrentSetSize = 0;
+
+/** List of handlers that want a trial read/write
+ */
+std::set<int> SocketEngine::trials;
+
+int SocketEngine::MAX_DESCRIPTORS;
+
+/** Socket engine statistics: count of various events, bandwidth usage
+ */
+SocketEngine::Statistics SocketEngine::stats;
+
+EventHandler::EventHandler()
{
- log(DEBUG,"SocketEngine::SocketEngine()");
-#ifdef USE_EPOLL
- EngineHandle = epoll_create(MAX_DESCRIPTORS);
-#endif
-#ifdef USE_KQUEUE
- EngineHandle = kqueue();
-#endif
- CurrentSetSize = 0;
+ fd = -1;
+ event_mask = 0;
}
-SocketEngine::~SocketEngine()
+void EventHandler::SetFd(int FD)
{
- log(DEBUG,"SocketEngine::~SocketEngine()");
-#ifdef USE_EPOLL
- close(EngineHandle);
-#endif
-#ifdef USE_KQUEUE
- close(EngineHandle);
-#endif
+ this->fd = FD;
}
-char SocketEngine::GetType(int fd)
+void SocketEngine::ChangeEventMask(EventHandler* eh, int change)
{
- if ((fd < 0) || (fd > MAX_DESCRIPTORS))
- return X_EMPTY_SLOT;
- /* Mask off the top bit used for 'read/write' state */
- return (ref[fd] & ~0x80);
+ int old_m = eh->event_mask;
+ int new_m = old_m;
+
+ // if we are changing read/write type, remove the previously set bit
+ if (change & FD_WANT_READ_MASK)
+ new_m &= ~FD_WANT_READ_MASK;
+ if (change & FD_WANT_WRITE_MASK)
+ new_m &= ~FD_WANT_WRITE_MASK;
+
+ // if adding a trial read/write, insert it into the set
+ if (change & FD_TRIAL_NOTE_MASK && !(old_m & FD_TRIAL_NOTE_MASK))
+ trials.insert(eh->GetFd());
+
+ new_m |= change;
+ if (new_m == old_m)
+ return;
+
+ eh->event_mask = new_m;
+ OnSetEvent(eh, old_m, new_m);
}
-bool SocketEngine::AddFd(int fd, bool readable, char type)
+void SocketEngine::DispatchTrialWrites()
{
- if ((fd < 0) || (fd > MAX_DESCRIPTORS))
- return false;
- if (GetRemainingFds() <= 1)
+ std::vector<int> working_list;
+ working_list.reserve(trials.size());
+ working_list.assign(trials.begin(), trials.end());
+ trials.clear();
+ for(unsigned int i=0; i < working_list.size(); i++)
{
- log(DEFAULT,"ERROR: System out of file descriptors!");
- return false;
- }
-#ifdef USE_SELECT
- fds[fd] = fd;
-#endif
- ref[fd] = type;
- if (readable)
- {
- log(DEBUG,"Set readbit");
- ref[fd] |= X_READBIT;
- }
- log(DEBUG,"Add socket %d",fd);
-#ifdef USE_EPOLL
- struct epoll_event ev;
- log(DEBUG,"epoll: Add socket to events, ep=%d socket=%d",EngineHandle,fd);
- readable ? ev.events = EPOLLIN | EPOLLET : ev.events = EPOLLOUT | EPOLLET;
- ev.data.fd = fd;
- int i = epoll_ctl(EngineHandle, EPOLL_CTL_ADD, fd, &ev);
- if (i < 0)
- {
- log(DEBUG,"epoll: List insertion failure!");
- return false;
+ int fd = working_list[i];
+ EventHandler* eh = GetRef(fd);
+ if (!eh)
+ continue;
+ int mask = eh->event_mask;
+ eh->event_mask &= ~(FD_ADD_TRIAL_READ | FD_ADD_TRIAL_WRITE);
+ if ((mask & (FD_ADD_TRIAL_READ | FD_READ_WILL_BLOCK)) == FD_ADD_TRIAL_READ)
+ eh->HandleEvent(EVENT_READ, 0);
+ if ((mask & (FD_ADD_TRIAL_WRITE | FD_WRITE_WILL_BLOCK)) == FD_ADD_TRIAL_WRITE)
+ eh->HandleEvent(EVENT_WRITE, 0);
}
-#endif
-#ifdef USE_KQUEUE
- struct kevent ke;
- log(DEBUG,"kqueue: Add socket to events, kq=%d socket=%d",EngineHandle,fd);
- EV_SET(&ke, fd, readable ? EVFILT_READ : EVFILT_WRITE, EV_ADD, 0, 0, NULL);
- int i = kevent(EngineHandle, &ke, 1, 0, 0, NULL);
- if (i == -1)
- {
- log(DEBUG,"kqueue: List insertion failure!");
+}
+
+bool SocketEngine::AddFdRef(EventHandler* eh)
+{
+ int fd = eh->GetFd();
+ if (HasFd(fd))
return false;
- }
-#endif
+
+ while (static_cast<unsigned int>(fd) >= ref.size())
+ ref.resize(ref.empty() ? 1 : (ref.size() * 2));
+ ref[fd] = eh;
CurrentSetSize++;
return true;
}
-bool SocketEngine::DelFd(int fd)
+void SocketEngine::DelFdRef(EventHandler *eh)
{
- log(DEBUG,"SocketEngine::DelFd(%d)",fd);
-
- if ((fd < 0) || (fd > MAX_DESCRIPTORS))
- return false;
-
-#ifdef USE_SELECT
- std::map<int,int>::iterator t = fds.find(fd);
- if (t != fds.end())
+ int fd = eh->GetFd();
+ if (GetRef(fd) == eh)
{
- fds.erase(t);
- log(DEBUG,"Deleted fd %d",fd);
+ ref[fd] = NULL;
+ CurrentSetSize--;
}
-#endif
-#ifdef USE_KQUEUE
- struct kevent ke;
- EV_SET(&ke, fd, ref[fd] & X_READBIT ? EVFILT_READ : EVFILT_WRITE, EV_DELETE, 0, 0, NULL);
- int i = kevent(EngineHandle, &ke, 1, 0, 0, NULL);
- if (i == -1)
- {
- log(DEBUG,"kqueue: Failed to remove socket from queue!");
+}
+
+bool SocketEngine::HasFd(int fd)
+{
+ return GetRef(fd) != NULL;
+}
+
+EventHandler* SocketEngine::GetRef(int fd)
+{
+ if (fd < 0 || static_cast<unsigned int>(fd) >= ref.size())
+ return NULL;
+ return ref[fd];
+}
+
+bool SocketEngine::BoundsCheckFd(EventHandler* eh)
+{
+ if (!eh)
return false;
- }
-#endif
-#ifdef USE_EPOLL
- struct epoll_event ev;
- ref[fd] && X_READBIT ? ev.events = EPOLLIN | EPOLLET : ev.events = EPOLLOUT | EPOLLET;
- ev.data.fd = fd;
- int i = epoll_ctl(EngineHandle, EPOLL_CTL_DEL, fd, &ev);
- if (i < 0)
- {
- log(DEBUG,"epoll: List deletion failure!");
+ if (eh->GetFd() < 0)
return false;
- }
-#endif
- CurrentSetSize--;
- ref[fd] = 0;
return true;
}
-int SocketEngine::GetMaxFds()
+
+int SocketEngine::Accept(EventHandler* fd, sockaddr *addr, socklen_t *addrlen)
+{
+ return accept(fd->GetFd(), addr, addrlen);
+}
+
+int SocketEngine::Close(EventHandler* eh)
{
-#ifdef USE_SELECT
- return FD_SETSIZE;
-#endif
-#ifdef USE_KQUEUE
- return MAX_DESCRIPTORS;
-#endif
-#ifdef USE_EPOLL
- return MAX_DESCRIPTORS;
+ DelFd(eh);
+ int ret = Close(eh->GetFd());
+ eh->SetFd(-1);
+ return ret;
+}
+
+int SocketEngine::Close(int fd)
+{
+#ifdef _WIN32
+ return closesocket(fd);
+#else
+ return close(fd);
#endif
}
-int SocketEngine::GetRemainingFds()
+int SocketEngine::Blocking(int fd)
{
-#ifdef USE_SELECT
- return FD_SETSIZE - CurrentSetSize;
+#ifdef _WIN32
+ unsigned long opt = 0;
+ return ioctlsocket(fd, FIONBIO, &opt);
+#else
+ int flags = fcntl(fd, F_GETFL, 0);
+ return fcntl(fd, F_SETFL, flags & ~O_NONBLOCK);
#endif
-#ifdef USE_KQUEUE
- return MAX_DESCRIPTORS - CurrentSetSize;
+}
+
+int SocketEngine::NonBlocking(int fd)
+{
+#ifdef _WIN32
+ unsigned long opt = 1;
+ return ioctlsocket(fd, FIONBIO, &opt);
+#else
+ int flags = fcntl(fd, F_GETFL, 0);
+ return fcntl(fd, F_SETFL, flags | O_NONBLOCK);
#endif
-#ifdef USE_EPOLL
- return MAX_DESCRIPTORS - CurrentSetSize;
+}
+
+void SocketEngine::SetReuse(int fd)
+{
+ int on = 1;
+ setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (char*)&on, sizeof(on));
+}
+
+int SocketEngine::RecvFrom(EventHandler* fd, void *buf, size_t len, int flags, sockaddr *from, socklen_t *fromlen)
+{
+ int nbRecvd = recvfrom(fd->GetFd(), (char*)buf, len, flags, from, fromlen);
+ if (nbRecvd > 0)
+ stats.Update(nbRecvd, 0);
+ return nbRecvd;
+}
+
+int SocketEngine::Send(EventHandler* fd, const void *buf, size_t len, int flags)
+{
+ int nbSent = send(fd->GetFd(), (const char*)buf, len, flags);
+ if (nbSent > 0)
+ stats.Update(0, nbSent);
+ return nbSent;
+}
+
+int SocketEngine::Recv(EventHandler* fd, void *buf, size_t len, int flags)
+{
+ int nbRecvd = recv(fd->GetFd(), (char*)buf, len, flags);
+ if (nbRecvd > 0)
+ stats.Update(nbRecvd, 0);
+ return nbRecvd;
+}
+
+int SocketEngine::SendTo(EventHandler* fd, const void *buf, size_t len, int flags, const sockaddr *to, socklen_t tolen)
+{
+ int nbSent = sendto(fd->GetFd(), (const char*)buf, len, flags, to, tolen);
+ if (nbSent > 0)
+ stats.Update(0, nbSent);
+ return nbSent;
+}
+
+int SocketEngine::Connect(EventHandler* fd, const sockaddr *serv_addr, socklen_t addrlen)
+{
+ int ret = connect(fd->GetFd(), serv_addr, addrlen);
+#ifdef _WIN32
+ if ((ret == SOCKET_ERROR) && (WSAGetLastError() == WSAEWOULDBLOCK))
+ errno = EINPROGRESS;
#endif
+ return ret;
}
-int SocketEngine::Wait(int* fdlist)
+int SocketEngine::Shutdown(EventHandler* fd, int how)
{
- int result = 0;
-#ifdef USE_SELECT
- FD_ZERO(&wfdset);
- FD_ZERO(&rfdset);
- timeval tval;
- int sresult;
- for (std::map<int,int>::iterator a = fds.begin(); a != fds.end(); a++)
- {
- if (ref[a->second] & X_READBIT)
- {
- FD_SET (a->second, &rfdset);
- }
- else
- {
- FD_SET (a->second, &wfdset);
- }
-
- }
- tval.tv_sec = 0;
- tval.tv_usec = 100L;
- sresult = select(FD_SETSIZE, &rfdset, &wfdset, NULL, &tval);
- if (sresult > 0)
+ return shutdown(fd->GetFd(), how);
+}
+
+int SocketEngine::Bind(int fd, const irc::sockets::sockaddrs& addr)
+{
+ return bind(fd, &addr.sa, addr.sa_size());
+}
+
+int SocketEngine::Listen(int sockfd, int backlog)
+{
+ return listen(sockfd, backlog);
+}
+
+int SocketEngine::Shutdown(int fd, int how)
+{
+ return shutdown(fd, how);
+}
+
+void SocketEngine::Statistics::Update(size_t len_in, size_t len_out)
+{
+ CheckFlush();
+ indata += len_in;
+ outdata += len_out;
+}
+
+void SocketEngine::Statistics::CheckFlush() const
+{
+ // Reset the in/out byte counters if it has been more than a second
+ time_t now = ServerInstance->Time();
+ if (lastempty != now)
{
- for (std::map<int,int>::iterator a = fds.begin(); a != fds.end(); a++)
- {
- if ((FD_ISSET (a->second, &rfdset)) || (FD_ISSET (a->second, &wfdset)))
- fdlist[result++] = a->second;
- }
+ lastempty = now;
+ indata = outdata = 0;
}
-#endif
-#ifdef USE_KQUEUE
- ts.tv_nsec = 10000L;
- ts.tv_sec = 0;
- int i = kevent(EngineHandle, NULL, 0, &ke_list[0], MAX_DESCRIPTORS, &ts);
- for (int j = 0; j < i; j++)
- fdlist[result++] = ke_list[j].ident;
-#endif
-#ifdef USE_EPOLL
- int i = epoll_wait(EngineHandle, events, MAX_DESCRIPTORS, 100);
- for (int j = 0; j < i; j++)
- fdlist[result++] = events[j].data.fd;
-#endif
- return result;
}
-std::string SocketEngine::GetName()
+void SocketEngine::Statistics::GetBandwidth(float& kbitpersec_in, float& kbitpersec_out, float& kbitpersec_total) const
{
-#ifdef USE_SELECT
- return "select";
-#endif
-#ifdef USE_KQUEUE
- return "kqueue";
+ CheckFlush();
+ float in_kbit = indata * 8;
+ float out_kbit = outdata * 8;
+ kbitpersec_total = ((in_kbit + out_kbit) / 1024);
+ kbitpersec_in = in_kbit / 1024;
+ kbitpersec_out = out_kbit / 1024;
+}
+
+std::string SocketEngine::LastError()
+{
+#ifndef _WIN32
+ return strerror(errno);
+#else
+ char szErrorString[500];
+ DWORD dwErrorCode = WSAGetLastError();
+ if (FormatMessageA(FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS, NULL, dwErrorCode, MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), (LPSTR)szErrorString, _countof(szErrorString), NULL) == 0)
+ sprintf_s(szErrorString, _countof(szErrorString), "Error code: %u", dwErrorCode);
+ return szErrorString;
#endif
-#ifdef USE_EPOLL
- return "epoll";
+}
+
+std::string SocketEngine::GetError(int errnum)
+{
+#ifndef _WIN32
+ return strerror(errnum);
+#else
+ WSASetLastError(errnum);
+ return LastError();
#endif
- return "misconfigured";
}
projects / user / henk / code / inspircd.git / blobdiff