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r23482:de566f8c088d
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Remove: DOS support
In 10 years there was no active development on DOS. Although it
turned out to still work, the FPS was very bad. There is little
interest in the current community to look into this.
Further more, we like to switch to c++11 functions for threads,
which are not implemented by DJGPP, the only current compiler
for DOS.
Additionally, DOS is the only platform which does not support
networking. It is the reason we have tons of #ifdefs to support
disabling networking.
By removing DOS support, we can both use c++11 functions for threads,
and remove all the code related to disabling network. Sadly, this
means we have to see DOS go.
Of course, if you feel up for the task, simply revert this commit,
and implement stub c++11 functions for threads and stub functions
for networking. We are more than happy to accept such Pull Request.
In 10 years there was no active development on DOS. Although it
turned out to still work, the FPS was very bad. There is little
interest in the current community to look into this.
Further more, we like to switch to c++11 functions for threads,
which are not implemented by DJGPP, the only current compiler
for DOS.
Additionally, DOS is the only platform which does not support
networking. It is the reason we have tons of #ifdefs to support
disabling networking.
By removing DOS support, we can both use c++11 functions for threads,
and remove all the code related to disabling network. Sadly, this
means we have to see DOS go.
Of course, if you feel up for the task, simply revert this commit,
and implement stub c++11 functions for threads and stub functions
for networking. We are more than happy to accept such Pull Request.
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/*
* This file is part of OpenTTD.
* OpenTTD 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.
* OpenTTD 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 OpenTTD. If not, see <http://www.gnu.org/licenses/>.
*/
/**
* @file tcp.h Basic functions to receive and send TCP packets.
*/
#ifndef NETWORK_CORE_TCP_H
#define NETWORK_CORE_TCP_H
#include "address.h"
#include "packet.h"
#ifdef ENABLE_NETWORK
/** The states of sending the packets. */
enum SendPacketsState {
SPS_CLOSED, ///< The connection got closed.
SPS_NONE_SENT, ///< The buffer is still full, so no (parts of) packets could be sent.
SPS_PARTLY_SENT, ///< The packets are partly sent; there are more packets to be sent in the queue.
SPS_ALL_SENT, ///< All packets in the queue are sent.
};
/** Base socket handler for all TCP sockets */
class NetworkTCPSocketHandler : public NetworkSocketHandler {
private:
Packet *packet_queue; ///< Packets that are awaiting delivery
Packet *packet_recv; ///< Partially received packet
public:
SOCKET sock; ///< The socket currently connected to
bool writable; ///< Can we write to this socket?
/**
* Whether this socket is currently bound to a socket.
* @return true when the socket is bound, false otherwise
*/
bool IsConnected() const { return this->sock != INVALID_SOCKET; }
virtual NetworkRecvStatus CloseConnection(bool error = true);
virtual void SendPacket(Packet *packet);
SendPacketsState SendPackets(bool closing_down = false);
virtual Packet *ReceivePacket();
bool CanSendReceive();
/**
* Whether there is something pending in the send queue.
* @return true when something is pending in the send queue.
*/
bool HasSendQueue() { return this->packet_queue != NULL; }
NetworkTCPSocketHandler(SOCKET s = INVALID_SOCKET);
~NetworkTCPSocketHandler();
};
/**
* "Helper" class for creating TCP connections in a non-blocking manner
*/
class TCPConnecter {
private:
class ThreadObject *thread; ///< Thread used to create the TCP connection
bool connected; ///< Whether we succeeded in making the connection
bool aborted; ///< Whether we bailed out (i.e. connection making failed)
bool killed; ///< Whether we got killed
SOCKET sock; ///< The socket we're connecting with
void Connect();
static void ThreadEntry(void *param);
protected:
/** Address we're connecting to */
NetworkAddress address;
public:
TCPConnecter(const NetworkAddress &address);
/** Silence the warnings */
virtual ~TCPConnecter() {}
/**
* Callback when the connection succeeded.
* @param s the socket that we opened
*/
virtual void OnConnect(SOCKET s) {}
/**
* Callback for when the connection attempt failed.
*/
virtual void OnFailure() {}
static void CheckCallbacks();
static void KillAll();
};
#endif /* ENABLE_NETWORK */
#endif /* NETWORK_CORE_TCP_H */
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