X-Git-Url: https://git.netwichtig.de/gitweb/?a=blobdiff_plain;f=src%2Finspsocket.cpp;h=356904f741b35e8efbcfe5bac61cdaf98721f31e;hb=925afed1b90871a52fb19f0ee2cb99cd26a53bae;hp=2d49c19db16508cd689437e26dddd357dce84654;hpb=0caead69fb08e42608e37ed5368cfdaf3ecf3088;p=user%2Fhenk%2Fcode%2Finspircd.git diff --git a/src/inspsocket.cpp b/src/inspsocket.cpp index 2d49c19db..356904f74 100644 --- a/src/inspsocket.cpp +++ b/src/inspsocket.cpp @@ -1,523 +1,543 @@ -/* +------------------------------------+ - * | Inspire Internet Relay Chat Daemon | - * +------------------------------------+ +/* + * InspIRCd -- Internet Relay Chat Daemon * - * InspIRCd is copyright (C) 2002-2006 ChatSpike-Dev. - * E-mail: - * - * - * - * Written by Craig Edwards, Craig McLure, and others. - * This program is free but copyrighted software; see - * the file COPYING for details. + * Copyright (C) 2009 Daniel De Graaf + * Copyright (C) 2007-2009 Robin Burchell + * Copyright (C) 2008 Thomas Stagner + * Copyright (C) 2006-2007 Craig Edwards + * Copyright (C) 2007 Dennis Friis + * Copyright (C) 2006 Oliver Lupton * - * --------------------------------------------------- + * 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 . */ -#include -#include -#include -#include -#include -#include "inspircd_config.h" -#include "socket.h" + #include "inspircd.h" -#include "configreader.h" +#include "socket.h" #include "inspstring.h" -#include "helperfuncs.h" #include "socketengine.h" -#include "message.h" - -extern InspIRCd* ServerInstance; -extern ServerConfig* Config; -extern time_t TIME; +#ifndef DISABLE_WRITEV +#include +#endif -InspSocket* socket_ref[MAX_DESCRIPTORS]; +#ifndef IOV_MAX +#define IOV_MAX 1024 +#endif -InspSocket::InspSocket() +BufferedSocket::BufferedSocket() { - this->state = I_DISCONNECTED; - this->fd = -1; - this->ClosePending = false; + Timeout = NULL; + state = I_ERROR; } -InspSocket::InspSocket(int newfd, const char* ip) +BufferedSocket::BufferedSocket(int newfd) { + Timeout = NULL; this->fd = newfd; this->state = I_CONNECTED; - strlcpy(this->IP,ip,MAXBUF); - this->ClosePending = false; - if (this->fd > -1) + if (fd > -1) + ServerInstance->SE->AddFd(this, FD_WANT_FAST_READ | FD_WANT_EDGE_WRITE); +} + +void BufferedSocket::DoConnect(const std::string &ipaddr, int aport, unsigned long maxtime, const std::string &connectbindip) +{ + BufferedSocketError err = BeginConnect(ipaddr, aport, maxtime, connectbindip); + if (err != I_ERR_NONE) { - ServerInstance->SE->AddFd(this->fd,true,X_ESTAB_MODULE); - socket_ref[this->fd] = this; + state = I_ERROR; + SetError(SocketEngine::LastError()); + OnError(err); } } -InspSocket::InspSocket(const std::string &ahost, int aport, bool listening, unsigned long maxtime) : fd(-1) +BufferedSocketError BufferedSocket::BeginConnect(const std::string &ipaddr, int aport, unsigned long maxtime, const std::string &connectbindip) { - strlcpy(host,ahost.c_str(),MAXBUF); - this->ClosePending = false; - if (listening) { - if ((this->fd = OpenTCPSocket()) == ERROR) + irc::sockets::sockaddrs addr, bind; + if (!irc::sockets::aptosa(ipaddr, aport, addr)) + { + ServerInstance->Logs->Log("SOCKET", DEBUG, "BUG: Hostname passed to BufferedSocket, rather than an IP address!"); + return I_ERR_CONNECT; + } + + bind.sa.sa_family = 0; + if (!connectbindip.empty()) + { + if (!irc::sockets::aptosa(connectbindip, 0, bind)) { - this->fd = -1; - this->state = I_ERROR; - this->OnError(I_ERR_SOCKET); - this->ClosePending = true; - log(DEBUG,"OpenTCPSocket() error"); - return; + return I_ERR_BIND; } - else + } + + return BeginConnect(addr, bind, maxtime); +} + +BufferedSocketError BufferedSocket::BeginConnect(const irc::sockets::sockaddrs& dest, const irc::sockets::sockaddrs& bind, unsigned long timeout) +{ + if (fd < 0) + fd = socket(dest.sa.sa_family, SOCK_STREAM, 0); + + if (fd < 0) + return I_ERR_SOCKET; + + if (bind.sa.sa_family != 0) + { + if (ServerInstance->SE->Bind(fd, bind) < 0) + return I_ERR_BIND; + } + + ServerInstance->SE->NonBlocking(fd); + + if (ServerInstance->SE->Connect(this, &dest.sa, sa_size(dest)) == -1) + { + if (errno != EINPROGRESS) + return I_ERR_CONNECT; + } + + this->state = I_CONNECTING; + + if (!ServerInstance->SE->AddFd(this, FD_WANT_NO_READ | FD_WANT_SINGLE_WRITE | FD_WRITE_WILL_BLOCK)) + return I_ERR_NOMOREFDS; + + this->Timeout = new SocketTimeout(this->GetFd(), this, timeout, ServerInstance->Time()); + ServerInstance->Timers->AddTimer(this->Timeout); + + ServerInstance->Logs->Log("SOCKET", DEBUG,"BufferedSocket::DoConnect success"); + return I_ERR_NONE; +} + +void StreamSocket::Close() +{ + if (this->fd > -1) + { + // final chance, dump as much of the sendq as we can + DoWrite(); + if (IOHook) { - if (!BindSocket(this->fd,this->client,this->server,aport,(char*)ahost.c_str())) + try { - log(DEBUG,"BindSocket() error %s",strerror(errno)); - this->Close(); - this->fd = -1; - this->state = I_ERROR; - this->OnError(I_ERR_BIND); - this->ClosePending = true; - return; + IOHook->OnStreamSocketClose(this); } - else + catch (CoreException& modexcept) { - this->state = I_LISTENING; - if (this->fd > -1) - { - ServerInstance->SE->AddFd(this->fd,true,X_ESTAB_MODULE); - socket_ref[this->fd] = this; - } - log(DEBUG,"New socket now in I_LISTENING state"); - return; + ServerInstance->Logs->Log("SOCKET", DEFAULT,"%s threw an exception: %s", + modexcept.GetSource(), modexcept.GetReason()); } - } - } - else - { - strlcpy(this->host,ahost.c_str(),MAXBUF); - this->port = aport; - - if (!inet_aton(host,&addy)) - { - log(DEBUG,"Attempting to resolve %s",this->host); - /* Its not an ip, spawn the resolver */ - this->dns.SetNS(std::string(Config->DNSServer)); - this->dns.ForwardLookupWithFD(host,fd); - timeout_end = time(NULL) + maxtime; - timeout = false; - this->state = I_RESOLVING; - socket_ref[this->fd] = this; - } - else - { - log(DEBUG,"No need to resolve %s",this->host); - strlcpy(this->IP,host,MAXBUF); - timeout_end = time(NULL) + maxtime; - this->DoConnect(); + IOHook = NULL; } + ServerInstance->SE->Shutdown(this, 2); + ServerInstance->SE->DelFd(this); + ServerInstance->SE->Close(this); + fd = -1; } } -void InspSocket::WantWrite() +CullResult StreamSocket::cull() { - /** XXX: - * The socket engine may only have each FD in the list ONCE. - * This means we cant watch for write AND read at the same - * time. We have to remove the READ fd, to insert the WRITE - * fd. Once we receive our WRITE event (which WILL ARRIVE, - * pretty much gauranteed) we switch back to watching for - * READ events again. - * - * This behaviour may be fixed in a later version. - */ - this->WaitingForWriteEvent = true; - ServerInstance->SE->DelFd(this->fd); - ServerInstance->SE->AddFd(this->fd,false,X_ESTAB_MODULE); + Close(); + return EventHandler::cull(); } -void InspSocket::SetQueues(int nfd) +bool StreamSocket::GetNextLine(std::string& line, char delim) { - // attempt to increase socket sendq and recvq as high as its possible - int sendbuf = 32768; - int recvbuf = 32768; - setsockopt(nfd,SOL_SOCKET,SO_SNDBUF,(const void *)&sendbuf,sizeof(sendbuf)); - setsockopt(nfd,SOL_SOCKET,SO_RCVBUF,(const void *)&recvbuf,sizeof(sendbuf)); + std::string::size_type i = recvq.find(delim); + if (i == std::string::npos) + return false; + line = recvq.substr(0, i); + // TODO is this the most efficient way to split? + recvq = recvq.substr(i + 1); + return true; } -bool InspSocket::DoResolve() +void StreamSocket::DoRead() { - log(DEBUG,"In DoResolve(), trying to resolve IP"); - if (this->dns.HasResult()) + if (IOHook) { - log(DEBUG,"Socket has result"); - std::string res_ip = dns.GetResultIP(); - if (res_ip != "") + int rv = -1; + try { - log(DEBUG,"Socket result set to %s",res_ip.c_str()); - strlcpy(this->IP,res_ip.c_str(),MAXBUF); - socket_ref[this->fd] = NULL; + rv = IOHook->OnStreamSocketRead(this, recvq); + } + catch (CoreException& modexcept) + { + ServerInstance->Logs->Log("SOCKET", DEFAULT, "%s threw an exception: %s", + modexcept.GetSource(), modexcept.GetReason()); + return; + } + if (rv > 0) + OnDataReady(); + if (rv < 0) + SetError("Read Error"); // will not overwrite a better error message + } + else + { + char* ReadBuffer = ServerInstance->GetReadBuffer(); + int n = ServerInstance->SE->Recv(this, ReadBuffer, ServerInstance->Config->NetBufferSize, 0); + if (n == ServerInstance->Config->NetBufferSize) + { + ServerInstance->SE->ChangeEventMask(this, FD_WANT_FAST_READ | FD_ADD_TRIAL_READ); + recvq.append(ReadBuffer, n); + OnDataReady(); + } + else if (n > 0) + { + ServerInstance->SE->ChangeEventMask(this, FD_WANT_FAST_READ); + recvq.append(ReadBuffer, n); + OnDataReady(); + } + else if (n == 0) + { + error = "Connection closed"; + ServerInstance->SE->ChangeEventMask(this, FD_WANT_NO_READ | FD_WANT_NO_WRITE); + } + else if (SocketEngine::IgnoreError()) + { + ServerInstance->SE->ChangeEventMask(this, FD_WANT_FAST_READ | FD_READ_WILL_BLOCK); + } + else if (errno == EINTR) + { + ServerInstance->SE->ChangeEventMask(this, FD_WANT_FAST_READ | FD_ADD_TRIAL_READ); } else { - log(DEBUG,"Socket DNS failure"); - this->Close(); - this->state = I_ERROR; - this->OnError(I_ERR_RESOLVE); - this->fd = -1; - this->ClosePending = true; - return false; + error = SocketEngine::LastError(); + ServerInstance->SE->ChangeEventMask(this, FD_WANT_NO_READ | FD_WANT_NO_WRITE); } - return this->DoConnect(); } - log(DEBUG,"No result for socket yet!"); - return true; } -/* Most irc servers require you to specify the ip you want to bind to. - * If you dont specify an IP, they rather dumbly bind to the first IP - * of the box (e.g. INADDR_ANY). In InspIRCd, we scan thought the IP - * addresses we've bound server ports to, and we try and bind our outbound - * connections to the first usable non-loopback and non-any IP we find. - * This is easier to configure when you have a lot of links and a lot - * of servers to configure. - */ -bool InspSocket::BindAddr() +/* Don't try to prepare huge blobs of data to send to a blocked socket */ +static const int MYIOV_MAX = IOV_MAX < 128 ? IOV_MAX : 128; + +void StreamSocket::DoWrite() { - insp_inaddr n; - ConfigReader Conf; + if (sendq.empty()) + return; + if (!error.empty() || fd < 0 || fd == INT_MAX) + { + ServerInstance->Logs->Log("SOCKET", DEBUG, "DoWrite on errored or closed socket"); + return; + } - log(DEBUG,"In InspSocket::BindAddr()"); - for (int j =0; j < Conf.Enumerate("bind"); j++) +#ifndef DISABLE_WRITEV + if (IOHook) +#endif { - std::string Type = Conf.ReadValue("bind","type",j); - std::string IP = Conf.ReadValue("bind","address",j); - if (Type == "servers") + int rv = -1; + try { - if ((IP != "*") && (IP != "127.0.0.1") && (IP != "")) + while (error.empty() && !sendq.empty()) { - insp_sockaddr s; - char resolved_addr[MAXBUF]; - - if (!inet_aton(IP.c_str(),&n)) + if (sendq.size() > 1 && sendq[0].length() < 1024) { - /* If they gave a hostname, bind to the IP it resolves to */ - log(DEBUG,"Resolving host %s",IP.c_str()); - if (CleanAndResolve(resolved_addr, IP.c_str(), true, 1)) + // Avoid multiple repeated SSL encryption invocations + // This adds a single copy of the queue, but avoids + // much more overhead in terms of system calls invoked + // by the IOHook. + // + // The length limit of 1024 is to prevent merging strings + // more than once when writes begin to block. + std::string tmp; + tmp.reserve(1280); + while (!sendq.empty() && tmp.length() < 1024) { - log(DEBUG,"Resolved host %s to %s",IP.c_str(),resolved_addr); - IP = resolved_addr; + tmp.append(sendq.front()); + sendq.pop_front(); } + sendq.push_front(tmp); } - - if (inet_aton(IP.c_str(),&n)) + std::string& front = sendq.front(); + int itemlen = front.length(); + if (IOHook) { - log(DEBUG,"Found an IP to bind to: %s",IP.c_str()); - s.sin_addr = n; - s.sin_family = AF_INET; - if (bind(this->fd,(struct sockaddr*)&s,sizeof(s)) < 0) + rv = IOHook->OnStreamSocketWrite(this, front); + if (rv > 0) { - log(DEBUG,"Cant bind()"); - this->state = I_ERROR; - this->OnError(I_ERR_BIND); - this->fd = -1; - return false; + // consumed the entire string, and is ready for more + sendq_len -= itemlen; + sendq.pop_front(); + } + else if (rv == 0) + { + // socket has blocked. Stop trying to send data. + // IOHook has requested unblock notification from the socketengine + + // Since it is possible that a partial write took place, adjust sendq_len + sendq_len = sendq_len - itemlen + front.length(); + return; + } + else + { + SetError("Write Error"); // will not overwrite a better error message + return; } - log(DEBUG,"bind() reports outbound fd bound to ip %s",IP.c_str()); - return true; } +#ifdef DISABLE_WRITEV else { - log(DEBUG,"Address '%s' was not an IP address",IP.c_str()); + rv = ServerInstance->SE->Send(this, front.data(), itemlen, 0); + if (rv == 0) + { + SetError("Connection closed"); + return; + } + else if (rv < 0) + { + if (errno == EINTR || SocketEngine::IgnoreError()) + ServerInstance->SE->ChangeEventMask(this, FD_WANT_FAST_WRITE | FD_WRITE_WILL_BLOCK); + else + SetError(SocketEngine::LastError()); + return; + } + else if (rv < itemlen) + { + ServerInstance->SE->ChangeEventMask(this, FD_WANT_FAST_WRITE | FD_WRITE_WILL_BLOCK); + front = front.substr(rv); + sendq_len -= rv; + return; + } + else + { + sendq_len -= itemlen; + sendq.pop_front(); + if (sendq.empty()) + ServerInstance->SE->ChangeEventMask(this, FD_WANT_EDGE_WRITE); + } } +#endif } } - } - log(DEBUG,"Found no suitable IPs to bind, binding INADDR_ANY"); - return true; -} - -bool InspSocket::DoConnect() -{ - log(DEBUG,"In DoConnect()"); - if ((this->fd = socket(AF_INET, SOCK_STREAM, 0)) == -1) - { - log(DEBUG,"Cant socket()"); - this->state = I_ERROR; - this->OnError(I_ERR_SOCKET); - this->fd = -1; - return false; - } - - if (!this->BindAddr()) - return false; - - log(DEBUG,"Part 2 DoConnect() %s",this->IP); - inet_aton(this->IP,&addy); - addr.sin_family = AF_INET; - addr.sin_addr = addy; - addr.sin_port = htons(this->port); - - int flags; - flags = fcntl(this->fd, F_GETFL, 0); - fcntl(this->fd, F_SETFL, flags | O_NONBLOCK); - - if (connect(this->fd, (sockaddr*)&this->addr,sizeof(this->addr)) == -1) - { - if (errno != EINPROGRESS) + catch (CoreException& modexcept) { - log(DEBUG,"Error connect() %d: %s",this->fd,strerror(errno)); - this->OnError(I_ERR_CONNECT); - this->Close(); - this->state = I_ERROR; - this->fd = -1; - this->ClosePending = true; - return false; + ServerInstance->Logs->Log("SOCKET", DEBUG,"%s threw an exception: %s", + modexcept.GetSource(), modexcept.GetReason()); } } - this->state = I_CONNECTING; - if (this->fd > -1) - { - ServerInstance->SE->AddFd(this->fd,false,X_ESTAB_MODULE); - socket_ref[this->fd] = this; - this->SetQueues(this->fd); - } - log(DEBUG,"Returning true from InspSocket::DoConnect"); - return true; -} - - -void InspSocket::Close() -{ - if (this->fd != -1) - { - this->OnClose(); - shutdown(this->fd,2); - close(this->fd); - socket_ref[this->fd] = NULL; - this->ClosePending = true; - this->fd = -1; - } -} - -std::string InspSocket::GetIP() -{ - return this->IP; -} - -char* InspSocket::Read() -{ - if ((fd < 0) || (fd > MAX_DESCRIPTORS)) - return NULL; - int n = recv(this->fd,this->ibuf,sizeof(this->ibuf),0); - if ((n > 0) && (n <= (int)sizeof(this->ibuf))) - { - ibuf[n] = 0; - return ibuf; - } +#ifndef DISABLE_WRITEV else { - if (errno == EAGAIN) - { - return ""; - } - else + // don't even try if we are known to be blocking + if (GetEventMask() & FD_WRITE_WILL_BLOCK) + return; + // start out optimistic - we won't need to write any more + int eventChange = FD_WANT_EDGE_WRITE; + while (error.empty() && sendq_len && eventChange == FD_WANT_EDGE_WRITE) { - log(DEBUG,"EOF or error on socket: %s",strerror(errno)); - return NULL; - } - } -} - -void InspSocket::MarkAsClosed() -{ - log(DEBUG,"Marked as closed"); - this->ClosePending = true; -} + // Prepare a writev() call to write all buffers efficiently + int bufcount = sendq.size(); -// There are two possible outcomes to this function. -// It will either write all of the data, or an undefined amount. -// If an undefined amount is written the connection has failed -// and should be aborted. -int InspSocket::Write(const std::string &data) -{ - if (this->ClosePending) - return false; - - /*int result = write(this->fd,data.c_str(),data.length()); - if (result < 1) - return false; - return true;*/ - - /* Try and append the data to the back of the queue, and send it on its way - */ - outbuffer.push_back(data); - return (!this->FlushWriteBuffer()); -} + // cap the number of buffers at MYIOV_MAX + if (bufcount > MYIOV_MAX) + { + bufcount = MYIOV_MAX; + } -bool InspSocket::FlushWriteBuffer() -{ - if (this->ClosePending) - return true; + int rv_max = 0; + iovec* iovecs = new iovec[bufcount]; + for(int i=0; i < bufcount; i++) + { + iovecs[i].iov_base = const_cast(sendq[i].data()); + iovecs[i].iov_len = sendq[i].length(); + rv_max += sendq[i].length(); + } + int rv = writev(fd, iovecs, bufcount); + delete[] iovecs; - if ((this->fd > -1) && (this->state == I_CONNECTED)) - { - if (outbuffer.size()) - { - int result = write(this->fd,outbuffer[0].c_str(),outbuffer[0].length()); - if (result > 0) + if (rv == (int)sendq_len) + { + // it's our lucky day, everything got written out. Fast cleanup. + // This won't ever happen if the number of buffers got capped. + sendq_len = 0; + sendq.clear(); + } + else if (rv > 0) { - if ((unsigned int)result == outbuffer[0].length()) + // Partial write. Clean out strings from the sendq + if (rv < rv_max) { - /* The whole block was written (usually a line) - * Pop the block off the front of the queue - */ - outbuffer.pop_front(); + // it's going to block now + eventChange = FD_WANT_FAST_WRITE | FD_WRITE_WILL_BLOCK; } - else + sendq_len -= rv; + while (rv > 0 && !sendq.empty()) { - std::string temp = outbuffer[0].substr(result); - outbuffer[0] = temp; + std::string& front = sendq.front(); + if (front.length() <= (size_t)rv) + { + // this string got fully written out + rv -= front.length(); + sendq.pop_front(); + } + else + { + // stopped in the middle of this string + front = front.substr(rv); + rv = 0; + } } } - else if ((result == -1) && (errno != EAGAIN)) + else if (rv == 0) + { + error = "Connection closed"; + } + else if (SocketEngine::IgnoreError()) { - log(DEBUG,"Write error on socket: %s",strerror(errno)); - this->OnError(I_ERR_WRITE); - this->state = I_ERROR; - this->ClosePending = true; - return true; + eventChange = FD_WANT_FAST_WRITE | FD_WRITE_WILL_BLOCK; } + else if (errno == EINTR) + { + // restart interrupted syscall + errno = 0; + } + else + { + error = SocketEngine::LastError(); + } + } + if (!error.empty()) + { + // error - kill all events + ServerInstance->SE->ChangeEventMask(this, FD_WANT_NO_READ | FD_WANT_NO_WRITE); + } + else + { + ServerInstance->SE->ChangeEventMask(this, eventChange); } } - return (fd < 0); +#endif } -bool InspSocket::Timeout(time_t current) +void StreamSocket::WriteData(const std::string &data) { - if (!socket_ref[this->fd] || !ServerInstance->SE->HasFd(this->fd)) + if (fd < 0) { - log(DEBUG,"No FD or socket ref"); - return false; + ServerInstance->Logs->Log("SOCKET", DEBUG, "Attempt to write data to dead socket: %s", + data.c_str()); + return; } - if (this->ClosePending) - { - log(DEBUG,"Close is pending"); - return true; - } + /* Append the data to the back of the queue ready for writing */ + sendq.push_back(data); + sendq_len += data.length(); - if (((this->state == I_RESOLVING) || (this->state == I_CONNECTING)) && (current > timeout_end)) + ServerInstance->SE->ChangeEventMask(this, FD_ADD_TRIAL_WRITE); +} + +void SocketTimeout::Tick(time_t) +{ + ServerInstance->Logs->Log("SOCKET", DEBUG,"SocketTimeout::Tick"); + + if (ServerInstance->SE->GetRef(this->sfd) != this->sock) + return; + + if (this->sock->state == I_CONNECTING) { - log(DEBUG,"Timed out, current=%lu timeout_end=%lu"); - // for non-listening sockets, the timeout can occur + // for connecting sockets, the timeout can occur // which causes termination of the connection after // the given number of seconds without a successful // connection. - this->OnTimeout(); - this->OnError(I_ERR_TIMEOUT); - timeout = true; - this->state = I_ERROR; - this->ClosePending = true; - return true; + this->sock->OnTimeout(); + this->sock->OnError(I_ERR_TIMEOUT); + this->sock->state = I_ERROR; + + ServerInstance->GlobalCulls.AddItem(sock); } - return this->FlushWriteBuffer(); -} -bool InspSocket::Poll() -{ - if (!socket_ref[this->fd] || !ServerInstance->SE->HasFd(this->fd)) - return false; + this->sock->Timeout = NULL; +} - int incoming = -1; - bool n = true; +void BufferedSocket::OnConnected() { } +void BufferedSocket::OnTimeout() { return; } - if ((fd < 0) || (fd > MAX_DESCRIPTORS) || (this->ClosePending)) - return false; +void BufferedSocket::DoWrite() +{ + if (state == I_CONNECTING) + { + state = I_CONNECTED; + this->OnConnected(); + if (GetIOHook()) + GetIOHook()->OnStreamSocketConnect(this); + else + ServerInstance->SE->ChangeEventMask(this, FD_WANT_FAST_READ | FD_WANT_EDGE_WRITE); + } + this->StreamSocket::DoWrite(); +} - switch (this->state) +BufferedSocket::~BufferedSocket() +{ + this->Close(); + if (Timeout) { - case I_RESOLVING: - log(DEBUG,"State = I_RESOLVING, calling DoResolve()"); - return this->DoResolve(); - break; - case I_CONNECTING: - log(DEBUG,"State = I_CONNECTING"); - this->SetState(I_CONNECTED); - /* Our socket was in write-state, so delete it and re-add it - * in read-state. - */ - if (this->fd > -1) + ServerInstance->Timers->DelTimer(Timeout); + Timeout = NULL; + } +} + +void StreamSocket::HandleEvent(EventType et, int errornum) +{ + if (!error.empty()) + return; + BufferedSocketError errcode = I_ERR_OTHER; + try { + switch (et) + { + case EVENT_ERROR: { - ServerInstance->SE->DelFd(this->fd); - ServerInstance->SE->AddFd(this->fd,true,X_ESTAB_MODULE); + if (errornum == 0) + SetError("Connection closed"); + else + SetError(SocketEngine::GetError(errornum)); + switch (errornum) + { + case ETIMEDOUT: + errcode = I_ERR_TIMEOUT; + break; + case ECONNREFUSED: + case 0: + errcode = I_ERR_CONNECT; + break; + case EADDRINUSE: + errcode = I_ERR_BIND; + break; + case EPIPE: + case EIO: + errcode = I_ERR_WRITE; + break; + } + break; } - return this->OnConnected(); - break; - case I_LISTENING: - length = sizeof (client); - incoming = accept (this->fd, (sockaddr*)&client,&length); - this->SetQueues(incoming); - this->OnIncomingConnection(incoming,inet_ntoa(client.sin_addr)); - return true; - break; - case I_CONNECTED: - - if (this->WaitingForWriteEvent) + case EVENT_READ: { - /* Switch back to read events */ - ServerInstance->SE->DelFd(this->fd); - ServerInstance->SE->AddFd(this->fd,true,X_ESTAB_MODULE); - /* Trigger the write event */ - n = this->OnWriteReady(); + DoRead(); + break; } - else + case EVENT_WRITE: { - /* Process the read event */ - n = this->OnDataReady(); + DoWrite(); + break; } - /* Flush any pending, but not till after theyre done with the event - * so there are less write calls involved. - * Both FlushWriteBuffer AND the return result of OnDataReady must - * return true for this to be ok. - */ - if (this->FlushWriteBuffer()) - return false; - return n; - break; - default: - break; + } + } + catch (CoreException& ex) + { + ServerInstance->Logs->Log("SOCKET", DEFAULT, "Caught exception in socket processing on FD %d - '%s'", + fd, ex.GetReason()); + SetError(ex.GetReason()); + } + if (!error.empty()) + { + ServerInstance->Logs->Log("SOCKET", DEBUG, "Error on FD %d - '%s'", fd, error.c_str()); + OnError(errcode); } - return true; -} - -void InspSocket::SetState(InspSocketState s) -{ - log(DEBUG,"Socket state change"); - this->state = s; -} - -InspSocketState InspSocket::GetState() -{ - return this->state; -} - -int InspSocket::GetFd() -{ - return this->fd; } -bool InspSocket::OnConnected() { return true; } -void InspSocket::OnError(InspSocketError e) { return; } -int InspSocket::OnDisconnect() { return 0; } -int InspSocket::OnIncomingConnection(int newfd, char* ip) { return 0; } -bool InspSocket::OnDataReady() { return true; } -bool InspSocket::OnWriteReady() { return true; } -void InspSocket::OnTimeout() { return; } -void InspSocket::OnClose() { return; } - -InspSocket::~InspSocket() -{ - this->Close(); -}