[30] | 1 | // Copyright (c) 2022 by István Váradi
|
---|
| 2 |
|
---|
| 3 | // This file is part of VSCPL, a simple cross-platform utility library
|
---|
| 4 |
|
---|
| 5 | // Redistribution and use in source and binary forms, with or without
|
---|
| 6 | // modification, are permitted provided that the following conditions are met:
|
---|
| 7 |
|
---|
| 8 | // 1. Redistributions of source code must retain the above copyright notice, this
|
---|
| 9 | // list of conditions and the following disclaimer.
|
---|
| 10 | // 2. Redistributions in binary form must reproduce the above copyright notice,
|
---|
| 11 | // this list of conditions and the following disclaimer in the documentation
|
---|
| 12 | // and/or other materials provided with the distribution.
|
---|
| 13 |
|
---|
| 14 | // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
|
---|
| 15 | // ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
|
---|
| 16 | // WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
---|
| 17 | // DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
|
---|
| 18 | // ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
|
---|
| 19 | // (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
|
---|
| 20 | // LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
|
---|
| 21 | // ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
---|
| 22 | // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
|
---|
| 23 | // SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
---|
| 24 |
|
---|
| 25 | // The views and conclusions contained in the software and documentation are those
|
---|
| 26 | // of the authors and should not be interpreted as representing official policies,
|
---|
| 27 | // either expressed or implied, of the FreeBSD Project.
|
---|
| 28 |
|
---|
| 29 | #pragma once
|
---|
| 30 |
|
---|
| 31 | //------------------------------------------------------------------------------
|
---|
| 32 |
|
---|
| 33 | #include "Completer.h"
|
---|
| 34 |
|
---|
| 35 | #include "TCPSocket.h"
|
---|
| 36 |
|
---|
| 37 | //------------------------------------------------------------------------------
|
---|
| 38 |
|
---|
| 39 | namespace hu { namespace varadiistvan { namespace scpl { namespace io {
|
---|
| 40 |
|
---|
| 41 | //------------------------------------------------------------------------------
|
---|
| 42 |
|
---|
| 43 | /**
|
---|
| 44 | * The connector class used by the TCP client socket.
|
---|
| 45 | */
|
---|
| 46 | class TCPConnector : public Completer
|
---|
| 47 | {
|
---|
| 48 | private:
|
---|
| 49 | /**
|
---|
| 50 | * The local socket to connect on behalf of which we connect.
|
---|
| 51 | */
|
---|
| 52 | TCPSocket& socket;
|
---|
| 53 |
|
---|
| 54 | /**
|
---|
| 55 | * The socket address to connect to.
|
---|
| 56 | */
|
---|
| 57 | struct sockaddr_in address;
|
---|
| 58 |
|
---|
| 59 | /**
|
---|
| 60 | * Indicate if we are connected.
|
---|
| 61 | */
|
---|
| 62 | bool connected;
|
---|
| 63 |
|
---|
| 64 | /**
|
---|
| 65 | * Indicate if we are connecting.
|
---|
| 66 | */
|
---|
| 67 | bool connecting;
|
---|
| 68 |
|
---|
| 69 | protected:
|
---|
| 70 | /**
|
---|
| 71 | * Create the connector for the given TCP client socket.
|
---|
| 72 | */
|
---|
| 73 | TCPConnector(TCPSocket* socket,
|
---|
| 74 | struct in_addr address, unsigned short port);
|
---|
| 75 |
|
---|
| 76 | public:
|
---|
| 77 | /**
|
---|
| 78 | * Connect to an address properly set up.
|
---|
| 79 | *
|
---|
| 80 | * If the connection succeeds immediately, it indicates success.
|
---|
| 81 | *
|
---|
| 82 | * If the connection does not succeed, because it would block, it
|
---|
| 83 | * sets up the socket to wait for the connection to succeed, and
|
---|
| 84 | * returns failure.
|
---|
| 85 | *
|
---|
| 86 | * If the connection fails for another reason, the error code is
|
---|
| 87 | * set, and false is returned.
|
---|
| 88 | */
|
---|
| 89 | bool connect();
|
---|
| 90 |
|
---|
| 91 | private:
|
---|
| 92 |
|
---|
| 93 | void handleWaitedResult(DWORD size) override;
|
---|
| 94 |
|
---|
| 95 | friend class FailableReference<TCPConnector>;
|
---|
| 96 | friend class TCPClientSocket;
|
---|
| 97 | };
|
---|
| 98 |
|
---|
| 99 | //------------------------------------------------------------------------------
|
---|
| 100 |
|
---|
| 101 | inline TCPConnector::TCPConnector(TCPSocket* socket,
|
---|
| 102 | struct in_addr address, unsigned short port) :
|
---|
| 103 | Completer(socket),
|
---|
| 104 | socket(*socket),
|
---|
| 105 | connected(false),
|
---|
| 106 | connecting(false)
|
---|
| 107 | {
|
---|
| 108 | this->address.sin_family = AF_INET;
|
---|
| 109 | this->address.sin_addr = address;
|
---|
| 110 | this->address.sin_port = htons(port);
|
---|
| 111 | }
|
---|
| 112 |
|
---|
| 113 | //------------------------------------------------------------------------------
|
---|
| 114 |
|
---|
| 115 | } /* namespace hu::varadiistvan::scpl::io */ } /* namespace hu::varadiistvan::scpl */ } /* namespace hu::varadiistvan */ } /* namespace hu */
|
---|
| 116 |
|
---|
| 117 | //------------------------------------------------------------------------------
|
---|
| 118 |
|
---|
| 119 | // Local Variables:
|
---|
| 120 | // mode: C++
|
---|
| 121 | // c-basic-offset: 4
|
---|
| 122 | // indent-tabs-mode: nil
|
---|
| 123 | // End:
|
---|