1 | // Copyright (c) 2012 by István Váradi
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2 |
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3 | // This file is part of libxplcommon, a common utility library for
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4 | // development related to X-Plane
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5 |
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6 | // Redistribution and use in source and binary forms, with or without
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7 | // modification, are permitted provided that the following conditions are met:
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8 |
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9 | // 1. Redistributions of source code must retain the above copyright notice, this
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10 | // list of conditions and the following disclaimer.
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11 | // 2. Redistributions in binary form must reproduce the above copyright notice,
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12 | // this list of conditions and the following disclaimer in the documentation
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13 | // and/or other materials provided with the distribution.
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14 |
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15 | // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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16 | // ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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17 | // WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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18 | // DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
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19 | // ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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20 | // (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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21 | // LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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22 | // ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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23 | // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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24 | // SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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25 |
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26 | // The views and conclusions contained in the software and documentation are those
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27 | // of the authors and should not be interpreted as representing official policies,
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28 | // either expressed or implied, of the FreeBSD Project.
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29 |
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30 | //------------------------------------------------------------------------------
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31 |
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32 | #include "ReadingBuffer.h"
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33 |
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34 | #include <cstdio>
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35 |
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36 | //------------------------------------------------------------------------------
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37 |
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38 | using xplcommon::win32::ReadingBuffer;
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39 |
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40 | //------------------------------------------------------------------------------
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41 |
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42 | bool ReadingBuffer::read()
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43 | {
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44 | if (failed()) return false;
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45 |
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46 | if (getLength()>0) {
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47 | return true;
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48 | }
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49 |
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50 | bool result = false;
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51 | if (checkWaitedResult(result)) {
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52 | return result;
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53 | }
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54 |
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55 | BufferedStream& stream = getStream();
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56 | ssize_t numRead = stream.read(getData(), getCapacity(), overlapped);
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57 | if (numRead<0) {
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58 | if (!stream.failed()) {
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59 | addTo(stream.getWaiter());
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60 | }
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61 | } else {
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62 | addLength(numRead);
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63 | }
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64 | return numRead>=0;
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65 | }
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66 |
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67 | //------------------------------------------------------------------------------
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68 |
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69 | void ReadingBuffer::handleWaitedResult(DWORD size)
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70 | {
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71 | addLength(size);
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72 | }
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73 |
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74 | //------------------------------------------------------------------------------
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75 |
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76 | // Local Variables:
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77 | // mode: C++
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78 | // c-basic-offset: 4
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79 | // indent-tabs-mode: nil
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80 | // End:
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