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_ 93
