-/* +------------------------------------+
- * | Inspire Internet Relay Chat Daemon |
- * +------------------------------------+
+/*
+ * InspIRCd -- Internet Relay Chat Daemon
*
- * InspIRCd 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"
-#include "helperfuncs.h"
-char ref[MAX_DESCRIPTORS];
+EventHandler::EventHandler()
+{
+ fd = -1;
+ event_mask = 0;
+}
+
+void EventHandler::SetFd(int FD)
+{
+ this->fd = FD;
+}
SocketEngine::SocketEngine()
{
- log(DEBUG,"SocketEngine::SocketEngine()");
-#ifdef USE_EPOLL
- EngineHandle = epoll_create(MAX_DESCRIPTORS);
-#endif
-#ifdef USE_KQUEUE
- EngineHandle = kqueue();
-#endif
-#ifdef USE_SELECT
- EngineHandle = 0;
-#endif
- if (EngineHandle == -1)
- {
- log(SPARSE,"ERROR: Could not initialize socket engine. Your kernel probably does not have the proper features.");
- log(SPARSE,"ERROR: this is a fatal error, exiting now.");
- printf("ERROR: Could not initialize socket engine. Your kernel probably does not have the proper features.");
- printf("ERROR: this is a fatal error, exiting now.");
- Exit(0);
- }
- CurrentSetSize = 0;
+ TotalEvents = WriteEvents = ReadEvents = ErrorEvents = 0;
+ lastempty = ServerInstance->Time();
+ indata = outdata = 0;
}
SocketEngine::~SocketEngine()
{
- log(DEBUG,"SocketEngine::~SocketEngine()");
-#ifdef USE_EPOLL
- close(EngineHandle);
-#endif
-#ifdef USE_KQUEUE
- close(EngineHandle);
-#endif
}
-char SocketEngine::GetType(int fd)
+void SocketEngine::SetEventMask(EventHandler* eh, int mask)
{
- if ((fd < 0) || (fd > MAX_DESCRIPTORS))
- return X_EMPTY_SLOT;
- /* Mask off the top bit used for 'read/write' state */
- return (ref[fd] & ~0x80);
+ eh->event_mask = mask;
}
-bool SocketEngine::AddFd(int fd, bool readable, char type)
+void SocketEngine::ChangeEventMask(EventHandler* eh, int change)
{
- if ((fd < 0) || (fd > MAX_DESCRIPTORS))
- {
- log(DEFAULT,"ERROR: FD of %d added above max of %d",fd,MAX_DESCRIPTORS);
- return false;
- }
- if (GetRemainingFds() <= 1)
- {
- 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;
- memset(&ev,0,sizeof(struct epoll_event));
- log(DEBUG,"epoll: Add socket to events, ep=%d socket=%d",EngineHandle,fd);
- readable ? ev.events = EPOLLIN : ev.events = EPOLLOUT;
- 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;
- }
-#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)
+ 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);
+}
+
+void SocketEngine::DispatchTrialWrites()
+{
+ 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(DEBUG,"kqueue: 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
- CurrentSetSize++;
- return true;
}
bool SocketEngine::HasFd(int fd)
{
- if ((fd < 0) || (fd > MAX_DESCRIPTORS))
+ if ((fd < 0) || (fd > GetMaxFds()))
return false;
- return (ref[fd] != 0);
+ return (ref[fd] != NULL);
}
-bool SocketEngine::DelFd(int fd)
+EventHandler* SocketEngine::GetRef(int fd)
{
- log(DEBUG,"SocketEngine::DelFd(%d)",fd);
-
- if ((fd < 0) || (fd > MAX_DESCRIPTORS))
- return false;
+ if ((fd < 0) || (fd > GetMaxFds()))
+ return 0;
+ return ref[fd];
+}
-#ifdef USE_SELECT
- std::map<int,int>::iterator t = fds.find(fd);
- if (t != fds.end())
- {
- fds.erase(t);
- log(DEBUG,"Deleted fd %d",fd);
- }
-#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::BoundsCheckFd(EventHandler* eh)
+{
+ if (!eh)
return false;
- }
-#endif
-#ifdef USE_EPOLL
- struct epoll_event ev;
- memset(&ev,0,sizeof(struct epoll_event));
- ref[fd] && X_READBIT ? ev.events = EPOLLIN : ev.events = EPOLLOUT;
- 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) || (eh->GetFd() > GetMaxFds()))
return false;
- }
-#endif
- CurrentSetSize--;
- ref[fd] = 0;
return true;
}
-int SocketEngine::GetMaxFds()
+
+int SocketEngine::Accept(EventHandler* fd, sockaddr *addr, socklen_t *addrlen)
{
-#ifdef USE_SELECT
- return FD_SETSIZE;
-#endif
-#ifdef USE_KQUEUE
- return MAX_DESCRIPTORS;
+ return accept(fd->GetFd(), addr, addrlen);
+}
+
+int SocketEngine::Close(EventHandler* fd)
+{
+#ifdef _WIN32
+ return closesocket(fd->GetFd());
+#else
+ return close(fd->GetFd());
#endif
-#ifdef USE_EPOLL
- return MAX_DESCRIPTORS;
+}
+
+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)
+ this->UpdateStats(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)
+ this->UpdateStats(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)
+ this->UpdateStats(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)
+ this->UpdateStats(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 = 50L;
- 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::RecoverFromFork()
+{
+}
+
+void SocketEngine::UpdateStats(size_t len_in, size_t len_out)
+{
+ if (lastempty != ServerInstance->Time())
{
- 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 = ServerInstance->Time();
+ indata = outdata = 0;
}
-#endif
-#ifdef USE_KQUEUE
- ts.tv_nsec = 5000L;
- 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, 50);
- for (int j = 0; j < i; j++)
- fdlist[result++] = events[j].data.fd;
-#endif
- return result;
+ indata += len_in;
+ outdata += len_out;
}
-std::string SocketEngine::GetName()
+void SocketEngine::GetStats(float &kbitpersec_in, float &kbitpersec_out, float &kbitpersec_total)
{
-#ifdef USE_SELECT
- return "select";
-#endif
-#ifdef USE_KQUEUE
- return "kqueue";
+ UpdateStats(0, 0); /* Forces emptying of the values if its been more than a second */
+ 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);
+
+ std::string::size_type p;
+ std::string ret = szErrorString;
+ while ((p = ret.find_last_of("\r\n")) != std::string::npos)
+ ret.erase(p, 1);
+
+ return ret;
#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