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1 // Copyright (c) 2010, Google Inc. |
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2 // All rights reserved. |
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3 // |
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4 // Redistribution and use in source and binary forms, with or without |
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5 // modification, are permitted provided that the following conditions are |
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6 // met: |
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7 // |
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8 // * Redistributions of source code must retain the above copyright |
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9 // notice, this list of conditions and the following disclaimer. |
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10 // * Redistributions in binary form must reproduce the above |
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11 // copyright notice, this list of conditions and the following disclaimer |
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12 // in the documentation and/or other materials provided with the |
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13 // distribution. |
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14 // * Neither the name of Google Inc. nor the names of its |
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15 // contributors may be used to endorse or promote products derived from |
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16 // this software without specific prior written permission. |
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17 // |
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18 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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19 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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20 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
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21 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
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22 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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23 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
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24 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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25 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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26 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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27 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
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28 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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29 |
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30 // binarystream implements part of the std::iostream interface as a |
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31 // wrapper around std::stringstream to allow reading and writing strings |
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32 // and integers of known size. |
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33 |
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34 #ifndef GOOGLE_BREAKPAD_PROCESSOR_BINARYSTREAM_H_ |
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35 #define GOOGLE_BREAKPAD_PROCESSOR_BINARYSTREAM_H_ |
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36 |
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37 #include <sstream> |
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38 #include <string> |
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39 |
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40 #include "common/using_std_string.h" |
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41 #include "google_breakpad/common/breakpad_types.h" |
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42 |
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43 namespace google_breakpad { |
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44 using std::ios_base; |
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45 using std::ios; |
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46 |
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47 class binarystream { |
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48 public: |
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49 explicit binarystream(ios_base::openmode which = ios_base::out|ios_base::in) |
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50 : stream_(which) {} |
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51 explicit binarystream(const string &str, |
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52 ios_base::openmode which = ios_base::out|ios_base::in) |
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53 : stream_(str, which) {} |
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54 explicit binarystream(const char *str, size_t size, |
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55 ios_base::openmode which = ios_base::out|ios_base::in) |
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56 : stream_(string(str, size), which) {} |
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57 |
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58 binarystream &operator>>(string &str); |
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59 binarystream &operator>>(uint8_t &u8); |
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60 binarystream &operator>>(uint16_t &u16); |
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61 binarystream &operator>>(uint32_t &u32); |
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62 binarystream &operator>>(uint64_t &u64); |
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63 |
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64 // Note: strings are truncated at 65535 characters |
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65 binarystream &operator<<(const string &str); |
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66 binarystream &operator<<(uint8_t u8); |
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67 binarystream &operator<<(uint16_t u16); |
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68 binarystream &operator<<(uint32_t u32); |
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69 binarystream &operator<<(uint64_t u64); |
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70 |
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71 // Forward a few methods directly from the stream object |
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72 bool eof() const { return stream_.eof(); } |
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73 void clear() { stream_.clear(); } |
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74 string str() const { return stream_.str(); } |
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75 void str(const string &s) { stream_.str(s); } |
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76 |
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77 // Seek both read and write pointers to the beginning of the stream. |
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78 void rewind() { |
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79 stream_.seekg (0, ios::beg); |
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80 stream_.seekp (0, ios::beg); |
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81 // This is to clear all the error flags, since only the EOF flag is cleared |
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82 // with seekg(). |
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83 stream_.clear(); |
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84 } |
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85 |
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86 private: |
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87 std::stringstream stream_; |
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88 }; |
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89 |
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90 } // namespace google_breakpad |
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91 |
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92 #endif // GOOGLE_BREAKPAD_PROCESSOR_BINARYSTREAM_H_ |