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2025-11-24 14:19:51 +05:30

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/*
Copyright (c) 2009-2010 Christopher A. Taylor. All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
* Redistributions of source code must retain the above copyright notice,
this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
* Neither the name of LibCat nor the names of its contributors may be used
to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef CAT_TCP_SERVER_HPP
#define CAT_TCP_SERVER_HPP
/*
Windows version of thread pool sockets with IO Completion Ports
Included from <cat/net/ThreadPoolSockets.hpp>
Do not include directly
*/
namespace cat {
/*
class TCPServer
Object that represents a TCP server bound to a single port
Overload InstantiateServerConnexion() to subclass connections with the server
*/
class TCPServer : public ThreadRefObject
{
friend class TCPConnexion;
Socket _socket;
LPFN_ACCEPTEX _lpfnAcceptEx;
LPFN_GETACCEPTEXSOCKADDRS _lpfnGetAcceptExSockAddrs;
LPFN_DISCONNECTEX _lpfnDisconnectEx;
Port _port;
struct AcceptTag
{
Socket acceptSocket;
// Space pre-allocated to receive addresses
// NOTE: This is not necessarily how the addresses are organized in memory
struct
{
// Not necessarily an IPv6 address
sockaddr_in6 addr[2];
u8 padding[2*16];
} addresses;
};
bool PostAccept(AsyncBuffer *buffer = 0);
bool QueueAccepts();
public:
TCPServer(int priorityLevel);
virtual ~TCPServer();
bool ValidServer();
Port GetPort();
bool Bind(bool onlySupportIPv4, Port port = 0);
void Close();
protected:
// Return true to release overlapped object memory, or return false to keep it
virtual bool OnAccept(ThreadPoolLocalStorage *tls, int error, AsyncBuffer *buffer, u32 bytes);
protected:
virtual TCPConnexion *InstantiateServerConnexion() = 0;
};
} // namespace cat
#endif // CAT_TCP_SERVER_HPP