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 *   Copyright (C) December 6, 2008 by Mattias Runge                             *

 *  Copyright (C) December 6, 2008 by Mattias Runge               *

 *   mattias@runge.se                                                      *

 *  mattias@runge.se                           *

 *   asyncsocket.cpp                                            *

 *  asyncsocket.cpp                      *

 *                                                                         *

 *                                     *

 *   This program is free software; you can redistribute it and/or modify  *

 *  This program is free software; you can redistribute it and/or modify *

 *   it under the terms of the GNU General Public License as published by  *

 *  it under the terms of the GNU General Public License as published by *

 *   the Free Software Foundation; either version 2 of the License, or     *

 *  the Free Software Foundation; either version 2 of the License, or   *

 *   (at your option) any later version.                                   *

 *  (at your option) any later version.                  *

 *                                                                         *

 *                                     *

 *   This program is distributed in the hope that it will be useful,       *

 *  This program is distributed in the hope that it will be useful,    *

 *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *

 *  but WITHOUT ANY WARRANTY; without even the implied warranty of    *

 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *

 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the     *

 *   GNU General Public License for more details.                          *

 *  GNU General Public License for more details.             *

 *                                                                         *

 *                                     *

 *   You should have received a copy of the GNU General Public License     *

 *  You should have received a copy of the GNU General Public License   *

 *   along with this program; if not, write to the                         *

 *  along with this program; if not, write to the             *

 *   Free Software Foundation, Inc.,                                       *

 *  Free Software Foundation, Inc.,                    *

 *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *

 *  59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.       *

{

{

    SyslogStream &slog = SyslogStream::getInstance();

    // If connection is already up then we should not connect again

        {

        {

        }

        }

    }

    }

            }

            }

            memset(buf, 0, MAXBUFFER + 1);

    memset(buffer, 0, MAXBUFFER + 1);

            status = ::recv(mySocket, buf, MAXBUFFER, 0);

    int status = ::recv(mySocket, buffer, MAXBUFFER, 0);

            if (status == -1)

    if (status == -1)

            {

    {

                switch (errno)

        switch (errno)

                {

        {

                    case EAGAIN:

            case EAGAIN:

                    throw new SocketException("The socket is marked non-blocking and the receive operation would block, or a receive timeout had been set and the timeout expired before data was received.");

            throw new SocketException("The socket is marked non-blocking and the receive operation would block, or a receive timeout had been set and the timeout expired before data was received.");

                    break;

            case EINTR:

                    case EBADF:

            // If we have automatic reconnect we want to start it now

                    throw new SocketException("The argument s is an invalid descriptor.");

            if (myReconnectTimeout == 0)

            {

                    case ECONNREFUSED:

                reconnectLoop();

            }

                    case EFAULT:

            else

                    throw new SocketException("The receive buffer pointer(s) point outside the process's address space.");

                // Otherwise we would like to end the main loop

            }

                    case EINTR:

            break;

                    case EINVAL:

            default:

                    throw new SocketException("Invalid argument passed.");

            throw new SocketException("Unknow exception: " + itos(errno));

                    break;

            break;

        }

    }

                    case ENOTCONN:

    else if (status == 0)

    {

                    case ENOTSOCK:

        // Remote host have done a normal shutdown

                    throw new SocketException("The argument s does not refer to a socket.");

        eventAdd(SocketEvent::TYPE_CONNECTION_CLOSED);

                    if (myReconnectTimeout > 0)

        if (myReconnectTimeout > 0)

                    {

        {

                        reconnectLoop();

            reconnectLoop();

                    }

        }

                    else

        else

                    {

        {

                        loop = false;

            return false;

                }

        }

            }

    }

            else if (status == 0)

    else if (status > 0)

            {

    {

                if (myReconnectTimeout > 0)

        // We have received data

                    reconnectLoop();

        eventAdd(SocketEvent::TYPE_DATA, buffer);

                }

    }

                {

                    loop = false;

    return true;

            }

}

                //slog << "Received: " + data + "\n";

void AsyncSocket::silentClose()

{

                myInQueue.push(data);

    if (mySocket != -1)

                setEvent(ASYNCSOCKET_EVENT_DATA);

        ::close(mySocket);

            }

        mySocket = -1;

        }

    }

    }

}

    {

        setEvent(ASYNCSOCKET_EVENT_DIED);

void AsyncSocket::close()

{

    close();

    silentClose();

}

}

    while (1)

    while (true)

            break;

            return;

            setEvent(ASYNCSOCKET_EVENT_CONNECT_FAILED);

            eventAdd(SocketEvent::TYPE_CONNECTION_FAILED, e->getDescription());

            setEvent(ASYNCSOCKET_EVENT_WAITING_TO_RECONNECT);

            eventAdd(SocketEvent::TYPE_WAITING_RECONNECT);

    }

    }

}

}

{

{

    close();

    silentClose();

    mySocket = ::socket(AF_INET, SOCK_STREAM, 0);

    mySocket = ::socket(AF_INET, SOCK_STREAM, 0);

        close();

        silentClose();

{

{

        close();

        silentClose();

        close();

        silentClose();

        }

        }

    }

    }

}

}

{

{

    SyslogStream &slog = SyslogStream::getInstance();

    eventAdd(SocketEvent::TYPE_CONNECTING);

        close();

        silentClose();

        close();

        silentClose();

            throw new SocketException("For Unix domain sockets, which are identified by pathname: Write permission is denied on the socket file, or search per- mission is denied for one of the directories in the path prefix.  (See also path_resolution(7).)");

            throw new SocketException("For Unix domain sockets, which are identified by pathname: Write permission is denied on the socket file, or search per- mission is denied for one of the directories in the path prefix. (See also path_resolution(7).)");

            throw new SocketException("The user tried to connect to a broadcast address without having the socket broadcast  flag  enabled  or  the  connection request failed because of a local firewall rule.");

            throw new SocketException("The user tried to connect to a broadcast address without having the socket broadcast flag enabled or the connection request failed because of a local firewall rule.");

            throw new SocketException("No more free local ports or insufficient entries in the routing cache.  For AF_INET see the net.ipv4.ip_local_port_range sysctl in ip(7) on how to increase the number of local ports.");

            throw new SocketException("No more free local ports or insufficient entries in the routing cache. For AF_INET see the net.ipv4.ip_local_port_range sysctl in ip(7) on how to increase the number of local ports.");

            throw new SocketException("The socket is non-blocking and the connection cannot be completed immediately.  It is possible to select(2)  or  poll(2) for  completion  by  selecting the socket for writing.  After select(2) indicates writability, use getsockopt(2) to read the SO_ERROR option at level SOL_SOCKET to determine whether connect() completed  successfully  (SO_ERROR  is  zero)  or unsuccessfully (SO_ERROR is one of the usual error codes listed here, explaining the reason for the failure).");

            throw new SocketException("The socket is non-blocking and the connection cannot be completed immediately. It is possible to select(2) or poll(2) for completion by selecting the socket for writing. After select(2) indicates writability, use getsockopt(2) to read the SO_ERROR option at level SOL_SOCKET to determine whether connect() completed successfully (SO_ERROR is zero) or unsuccessfully (SO_ERROR is one of the usual error codes listed here, explaining the reason for the failure).");

            throw new SocketException("Timeout  while  attempting  connection.  The server may be too busy to accept new connections.  Note that for IP sockets the timeout may be very long when syncookies are enabled on the server.");

            throw new SocketException("Timeout while attempting connection. The server may be too busy to accept new connections. Note that for IP sockets the timeout may be very long when syncookies are enabled on the server.");

        }

        }

    }

    }

    setEvent(ASYNCSOCKET_EVENT_CONNECTED);

    eventAdd(SocketEvent::TYPE_CONNECTED);

}

}

bool AsyncSocket::sendData(string data)

void AsyncSocket::sendData(string data)

{

{

    int status = ::send(mySocket, data.c_str(), data.size(), 0);

    int status = ::send(mySocket, data.c_str(), data.size(), 0);

    try

    if (status == -1)

        if (status == -1)

        switch (errno)

                case EACCES:

            case EACCES:

                throw new SocketException("(For  Unix  domain sockets, which are identified by pathname) Write permission is denied on the destination socket file, or search permission is denied for one of the directories the path prefix.  (See path_resolution(7).)");

            throw new SocketException("(For Unix domain sockets, which are identified by pathname) Write permission is denied on the destination socket file, or search permission is denied for one of the directories the path prefix. (See path_resolution(7).)");

                case EAGAIN:

            case EAGAIN:

                //slog << "The socket is marked non-blocking and the requested operation would block.\n";

            throw new SocketException("The socket is marked non-blocking and the requested operation would block.");

                case EBADF:

            case EBADF:

                throw new SocketException("An invalid descriptor was specified.");

            throw new SocketException("An invalid descriptor was specified.");

                case ECONNRESET:

            case ECONNRESET:

                throw new SocketException("Connection reset by peer.");

            throw new SocketException("Connection reset by peer.");

                case EDESTADDRREQ:

            case EDESTADDRREQ:

                throw new SocketException("The socket is not connection-mode, and no peer address is set.");

            throw new SocketException("The socket is not connection-mode, and no peer address is set.");

                case EFAULT:

            case EFAULT:

                throw new SocketException("An invalid user space address was specified for an argument.");

            throw new SocketException("An invalid user space address was specified for an argument.");

                case EINTR:

            case EINTR:

                throw new SocketException("A signal occurred before any data was transmitted; see signal(7).");

            throw new SocketException("A signal occurred before any data was transmitted; see signal(7).");

                case EINVAL:

            case EINVAL:

                throw new SocketException("1Invalid argument passed.");

            throw new SocketException("1Invalid argument passed.");

                case EISCONN:

            case EISCONN:

                throw new SocketException("The connection-mode socket was connected already but a recipient was specified. (Now either this error is returned, or the recipient specification is ignored.)");

            throw new SocketException("The connection-mode socket was connected already but a recipient was specified. (Now either this error is returned, or the recipient specification is ignored.)");

                case EMSGSIZE:

            case EMSGSIZE:

                throw new SocketException("The socket type requires that message be sent atomically, and the size of the message to be sent made this impossible.");

            throw new SocketException("The socket type requires that message be sent atomically, and the size of the message to be sent made this impossible.");

                case ENOBUFS:

            case ENOBUFS:

                throw new SocketException("The output queue for a network interface was full.  This generally indicates that the interface has stopped sending, but may be caused by transient congestion.  (Normally, this does not occur in Linux.  Packets are just silently dropped when a device queue overflows.)");

            throw new SocketException("The output queue for a network interface was full. This generally indicates that the interface has stopped sending, but may be caused by transient congestion. (Normally, this does not occur in Linux. Packets are just silently dropped when a device queue overflows.)");

                case ENOMEM:

            case ENOMEM:

                throw new SocketException("No memory available.");

            throw new SocketException("No memory available.");

                case ENOTCONN:

            case ENOTCONN:

                throw new SocketException("The socket is not connected, and no target has been given.");

            throw new SocketException("The socket is not connected, and no target has been given.");

                case ENOTSOCK:

            case ENOTSOCK:

                throw new SocketException("The argument s is not a socket.");

            throw new SocketException("The argument s is not a socket.");

                case EOPNOTSUPP:

            case EOPNOTSUPP:

                throw new SocketException("Some bit in the flags argument is inappropriate for the socket type.");

            throw new SocketException("Some bit in the flags argument is inappropriate for the socket type.");

                case EPIPE:

            case EPIPE:

                throw new SocketException("The  local end has been shut down on a connection oriented socket. In this case the process will also receive a SIGPIPE unless MSG_NOSIGNAL is set.");

            throw new SocketException("The local end has been shut down on a connection oriented socket. In this case the process will also receive a SIGPIPE unless MSG_NOSIGNAL is set.");

                default:

            default:

                slog << "Unknow exception: " + itos(errno) + "\n";

            throw new SocketException("Unknow exception: " + itos(errno));

void AsyncSocket::setEvent(int event)

void AsyncSocket::eventAdd(unsigned int eventType)

    myEventQueue.push(event);

    myEventQueue.push(socketEvent);