1 | // Copyright (c) 2022 by István Váradi
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2 |
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3 | // This file is part of VSCPL, a simple cross-platform utility library
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4 |
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5 | // Redistribution and use in source and binary forms, with or without
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6 | // modification, are permitted provided that the following conditions are met:
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7 |
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8 | // 1. Redistributions of source code must retain the above copyright notice, this
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9 | // list of conditions and the following disclaimer.
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10 | // 2. Redistributions in binary form must reproduce the above copyright notice,
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11 | // this list of conditions and the following disclaimer in the documentation
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12 | // and/or other materials provided with the distribution.
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13 |
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14 | // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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15 | // ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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16 | // WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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17 | // DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
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18 | // ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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19 | // (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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20 | // LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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21 | // ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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22 | // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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23 | // SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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24 |
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25 | // The views and conclusions contained in the software and documentation are those
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26 | // of the authors and should not be interpreted as representing official policies,
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27 | // either expressed or implied, of the FreeBSD Project.
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28 |
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29 | #pragma once
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30 |
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31 | //------------------------------------------------------------------------------
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32 |
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33 | #include "Acceptor.h"
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34 |
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35 | //------------------------------------------------------------------------------
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36 |
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37 | namespace hu { namespace varadiistvan { namespace scpl { namespace io {
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38 |
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39 | //------------------------------------------------------------------------------
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40 |
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41 | /**
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42 | * Socket acceptor template for a certain kind of client sockets.
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43 | */
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44 | template <class Socket>
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45 | class SocketAcceptor : public Acceptor
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46 | {
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47 | protected:
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48 | /**
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49 | * Construct the acceptor.
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50 | */
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51 | SocketAcceptor(ServerSocket* socket);
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52 |
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53 | public:
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54 | /**
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55 | * Get the socket accepted last. If no socket was accepted,
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56 | * return 0. The socket's waiter will be the given one
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57 | * (which can be 0).
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58 | */
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59 | Socket* getSocket(Waiter* waiter,
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60 | size_t readingCapacity = Socket::DEFAULT_CAPACITY,
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61 | size_t writingCapacity = Socket::DEFAULT_CAPACITY);
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62 | /**
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63 | * Get the socket accepted last. If no socket was accepted,
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64 | * return 0. The socket's waiter will be the same as that of
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65 | * the associated server socket.
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66 | */
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67 | Socket* getSocket(size_t readingCapacity = Socket::DEFAULT_CAPACITY,
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68 | size_t writingCapacity = Socket::DEFAULT_CAPACITY);
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69 |
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70 | /**
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71 | * Get the last accepted socket as a buffered stream with the given waiter,
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72 | * if any.
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73 | */
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74 | BufferedStream* getAcceptedBufferedStream(Waiter* waiter = nullptr) override;
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75 | };
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76 |
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77 | //------------------------------------------------------------------------------
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78 | // Template definitions
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79 | //------------------------------------------------------------------------------
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80 |
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81 | template <class Socket>
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82 | inline SocketAcceptor<Socket>::SocketAcceptor(ServerSocket* socket) :
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83 | Acceptor(socket)
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84 | {
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85 | }
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86 |
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87 | //------------------------------------------------------------------------------
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88 |
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89 | template <class Socket>
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90 | inline Socket*
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91 | SocketAcceptor<Socket>::getSocket(Waiter* waiter,
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92 | size_t readingCapacity,
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93 | size_t writingCapacity)
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94 | {
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95 | if (acceptedFD<0) return 0;
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96 |
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97 | Socket* socket = new Socket(acceptedFD, waiter,
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98 | readingCapacity, writingCapacity);
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99 | connectionProcessed();
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100 | return socket;
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101 | }
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102 |
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103 | //------------------------------------------------------------------------------
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104 |
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105 | template <class Socket>
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106 | inline Socket*
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107 | SocketAcceptor<Socket>::getSocket(size_t readingCapacity,
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108 | size_t writingCapacity)
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109 | {
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110 | return getSocket(socket.getWaiter(), readingCapacity, writingCapacity);
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111 | }
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112 |
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113 | //------------------------------------------------------------------------------
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114 |
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115 | template <class Socket>
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116 | BufferedStream* SocketAcceptor<Socket>::
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117 | getAcceptedBufferedStream(Waiter* waiter)
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118 | {
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119 | return (waiter==nullptr) ? getSocket() : getSocket(waiter);
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120 | }
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121 |
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122 | //------------------------------------------------------------------------------
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123 |
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124 | } /* namespace hu::varadiistvan::scpl::io */ } /* namespace hu::varadiistvan::scpl */ } /* namespace hu::varadiistvan */ } /* namespace hu */
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125 |
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126 | //------------------------------------------------------------------------------
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127 |
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128 | // Local Variables:
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129 | // mode: C++
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130 | // c-basic-offset: 4
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131 | // indent-tabs-mode: nil
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132 | // End:
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