topical media & game development

topical media & game development

[] readme course(s) preface I 1 2 II 3 4 III 5 6 7 IV 8 9 10 V 11 12 afterthought(s) appendix reference(s) example(s) resource(s) _

lib-of-vs-libs-Poco-include-Poco-FileStream-POSIX.h / h


  //
  // FileStream_POSIX.h
  //
  //  $Id: //poco/1.3/Foundation/include/Poco/FileStream_POSIX.h#1$ 
  //
  // Library: Foundation
  // Package: Streams
  // Module:  FileStream
  //
  // Definition of the FileStreamBuf, FileInputStream and FileOutputStream classes.
  //
  // Copyright (c) 2007, Applied Informatics Software Engineering GmbH.
  // and Contributors.
  //
  // Permission is hereby granted, free of charge, to any person or organization
  // obtaining a copy of the software and accompanying documentation covered by
  // this license (the "Software") to use, reproduce, display, distribute,
  // execute, and transmit the Software, and to prepare derivative works of the
  // Software, and to permit third-parties to whom the Software is furnished to
  // do so, all subject to the following:
  // 
  // The copyright notices in the Software and this entire statement, including
  // the above license grant, this restriction and the following disclaimer,
  // must be included in all copies of the Software, in whole or in part, and
  // all derivative works of the Software, unless such copies or derivative
  // works are solely in the form of machine-executable object code generated by
  // a source language processor.
  // 
  // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  // FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
  // SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
  // FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
  // ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  // DEALINGS IN THE SOFTWARE.
  //
  
  ifndef Foundation_FileStream_POSIX_INCLUDED
  define Foundation_FileStream_POSIX_INCLUDED
  
  include "Poco/Foundation.h"
  include "Poco/BufferedBidirectionalStreamBuf.h"
  include <istream>
  include <ostream>
  
  namespace Poco {
  
  class Foundation_API FileStreamBuf: public BufferedBidirectionalStreamBuf

This stream buffer handles Fileio { public: FileStreamBuf(); Creates a FileStreamBuf. ~FileStreamBuf(); Destroys the FileStream.


          void open(const std::string& path, std::ios::openmode mode);

Opens the given file in the given mode.


          void close();

Closes the File stream buffer.


          std::streampos seekoff(std::streamoff off, std::ios::seekdir dir, std::ios::openmode mode = std::ios::in | std::ios::out);

Change position by offset, according to way and mode.


          std::streampos seekpos(std::streampos pos, std::ios::openmode mode = std::ios::in | std::ios::out);

Change to specified position, according to mode.


  protected:
          enum
          {
                  BUFFER_SIZE = 4096
          };
  
          int readFromDevice(char* buffer, std::streamsize length);
          int writeToDevice(const char* buffer, std::streamsize length);
  
  private:
          std::string _path;
          int _fd;
          std::streamoff _pos;
  };
  
  } // namespace Poco
  
  endif // Foundation_FileStream_WIN32_INCLUDED

[] readme course(s) preface I 1 2 II 3 4 III 5 6 7 IV 8 9 10 V 11 12 afterthought(s) appendix reference(s) example(s) resource(s) _

You may not copy or print any of this material without explicit permission of the author or the publisher. In case of other copyright issues, contact the author.