michael@0: // Copyright (c) 2010, Google Inc.
michael@0: // All rights reserved.
michael@0: //
michael@0: // Redistribution and use in source and binary forms, with or without
michael@0: // modification, are permitted provided that the following conditions are
michael@0: // met:
michael@0: //
michael@0: //     * Redistributions of source code must retain the above copyright
michael@0: // notice, this list of conditions and the following disclaimer.
michael@0: //     * Redistributions in binary form must reproduce the above
michael@0: // copyright notice, this list of conditions and the following disclaimer
michael@0: // in the documentation and/or other materials provided with the
michael@0: // distribution.
michael@0: //     * Neither the name of Google Inc. nor the names of its
michael@0: // contributors may be used to endorse or promote products derived from
michael@0: // this software without specific prior written permission.
michael@0: //
michael@0: // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
michael@0: // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
michael@0: // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
michael@0: // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
michael@0: // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
michael@0: // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
michael@0: // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
michael@0: // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
michael@0: // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
michael@0: // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
michael@0: // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
michael@0: 
michael@0: // binarystream implements part of the std::iostream interface as a
michael@0: // wrapper around std::stringstream to allow reading and writing strings
michael@0: // and integers of known size.
michael@0: 
michael@0: #ifndef GOOGLE_BREAKPAD_PROCESSOR_BINARYSTREAM_H_
michael@0: #define GOOGLE_BREAKPAD_PROCESSOR_BINARYSTREAM_H_
michael@0: 
michael@0: #include <sstream>
michael@0: #include <string>
michael@0: 
michael@0: #include "common/using_std_string.h"
michael@0: #include "google_breakpad/common/breakpad_types.h"
michael@0: 
michael@0: namespace google_breakpad {
michael@0: using std::ios_base;
michael@0: using std::ios;
michael@0: 
michael@0: class binarystream {
michael@0:  public:
michael@0:   explicit binarystream(ios_base::openmode which = ios_base::out|ios_base::in)
michael@0:     : stream_(which) {}
michael@0:   explicit binarystream(const string &str,
michael@0:                         ios_base::openmode which = ios_base::out|ios_base::in)
michael@0:     : stream_(str, which) {}
michael@0:   explicit binarystream(const char *str, size_t size,
michael@0:                         ios_base::openmode which = ios_base::out|ios_base::in)
michael@0:     : stream_(string(str, size), which) {}
michael@0: 
michael@0:   binarystream &operator>>(string &str);
michael@0:   binarystream &operator>>(uint8_t &u8);
michael@0:   binarystream &operator>>(uint16_t &u16);
michael@0:   binarystream &operator>>(uint32_t &u32);
michael@0:   binarystream &operator>>(uint64_t &u64);
michael@0: 
michael@0:   // Note: strings are truncated at 65535 characters
michael@0:   binarystream &operator<<(const string &str);
michael@0:   binarystream &operator<<(uint8_t u8);
michael@0:   binarystream &operator<<(uint16_t u16);
michael@0:   binarystream &operator<<(uint32_t u32);
michael@0:   binarystream &operator<<(uint64_t u64);
michael@0: 
michael@0:   // Forward a few methods directly from the stream object
michael@0:   bool eof() const { return stream_.eof(); }
michael@0:   void clear() { stream_.clear(); }
michael@0:   string str() const { return stream_.str(); }
michael@0:   void str(const string &s) { stream_.str(s); }
michael@0:     
michael@0:   // Seek both read and write pointers to the beginning of the stream.
michael@0:   void rewind() {
michael@0:     stream_.seekg (0, ios::beg);
michael@0:     stream_.seekp (0, ios::beg);
michael@0:     // This is to clear all the error flags, since only the EOF flag is cleared
michael@0:     // with seekg().
michael@0:     stream_.clear();
michael@0:   }
michael@0: 
michael@0:  private:
michael@0:   std::stringstream stream_;
michael@0: };
michael@0: 
michael@0: }  // namespace google_breakpad
michael@0: 
michael@0: #endif  // GOOGLE_BREAKPAD_PROCESSOR_BINARYSTREAM_H_