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