1 | // Copyright (c) 2013 by István Váradi
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2 |
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3 | // This file is part of XPLRA, a remote-access plugin for X-Plane
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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 | //------------------------------------------------------------------------------
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30 |
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31 | #include "MultiGetter.h"
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32 |
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33 | #include "XPlane.h"
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34 |
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35 | #include <xplra/Protocol.h>
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36 |
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37 | #include <hu/varadiistvan/scpl/io/DataStream.h>
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38 |
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39 | #include <cstdio>
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40 |
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41 | //------------------------------------------------------------------------------
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42 |
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43 | using hu::varadiistvan::xplra::MultiGetter;
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44 |
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45 | using xplra::Protocol;
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46 |
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47 | using std::vector;
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48 | using std::min;
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49 |
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50 | //------------------------------------------------------------------------------
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51 |
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52 | MultiGetter::MultiGetter(XPlane& xplane) throw() :
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53 | MultiBuffer(xplane, Protocol::COMMAND_REGISTER_GET_MULTI,
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54 | Protocol::COMMAND_UNREGISTER_GET_MULTI)
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55 | {
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56 | }
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57 |
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58 | //------------------------------------------------------------------------------
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59 |
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60 | inline void MultiGetter::read(const DataRef& dataRef) throw(Exception)
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61 | {
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62 | switch (dataRef.type) {
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63 | case Protocol::TYPE_INT:
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64 | *reinterpret_cast<int32_t*>(data + dataRef.dataOffset) =
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65 | xplane.stream->readS32();
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66 | break;
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67 | case Protocol::TYPE_FLOAT:
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68 | *reinterpret_cast<float*>(data + dataRef.dataOffset) =
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69 | xplane.stream->readFloat();
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70 | break;
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71 | case Protocol::TYPE_DOUBLE:
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72 | *reinterpret_cast<double*>(data + dataRef.dataOffset) =
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73 | xplane.stream->readDouble();
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74 | break;
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75 | case Protocol::TYPE_FLOAT_ARRAY:
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76 | case Protocol::TYPE_INT_ARRAY:
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77 | case Protocol::TYPE_BYTE_ARRAY:
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78 | {
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79 | size_t length = xplane.stream->readS32();
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80 | xplane.checkStream();
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81 | length = min(length, dataRef.length);
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82 | size_t elementSize =
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83 | (dataRef.type==Protocol::TYPE_FLOAT_ARRAY) ? sizeof(float) :
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84 | ((dataRef.type==Protocol::TYPE_INT_ARRAY) ?
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85 | sizeof(int32_t) : sizeof(uint8_t));
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86 | xplane.stream->read(data + dataRef.dataOffset, length * elementSize);
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87 | }
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88 | }
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89 | }
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90 |
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91 | //------------------------------------------------------------------------------
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92 |
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93 | void MultiGetter::doExecute() throw(Exception)
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94 | {
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95 | xplane.checkStream();
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96 | xplane.stream->writeU8(Protocol::COMMAND_EXECUTE_GET_MULTI);
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97 | xplane.stream->writeU32(registeredID);
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98 | xplane.stream->flush();
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99 | xplane.checkResult();
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100 |
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101 | readValues();
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102 | }
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103 |
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104 |
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105 | //------------------------------------------------------------------------------
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106 |
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107 | void MultiGetter::doExecuteUnregistered() throw(Exception)
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108 | {
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109 | writeSpec(Protocol::COMMAND_GET_MULTI);
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110 |
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111 | readValues();
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112 | }
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113 |
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114 | //------------------------------------------------------------------------------
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115 |
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116 | void MultiGetter::readValues() throw(Exception)
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117 | {
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118 | for(vector<DataRef>::const_iterator i = dataRefs.begin();
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119 | i!=dataRefs.end(); ++i)
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120 | {
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121 | xplane.checkStream();
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122 | const DataRef& dataRef = *i;
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123 | read(dataRef);
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124 | }
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125 | }
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126 |
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127 | //------------------------------------------------------------------------------
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128 |
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129 | // Local Variables:
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130 | // mode: C++
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131 | // c-basic-offset: 4
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132 | // indent-tabs-mode: nil
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133 | // End:
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