Line data    Source code

       1             : /******************************************************************************
       2             :  *
       3             :  * Purpose:  PCIDSK I/O Interface declaration. The I/O interfaces for the
       4             :  *           library can be overridden by an object implementing this class.
       5             :  *
       6             :  ******************************************************************************
       7             :  * Copyright (c) 2009
       8             :  * PCI Geomatics, 90 Allstate Parkway, Markham, Ontario, Canada.
       9             :  *
      10             :  * Permission is hereby granted, free of charge, to any person obtaining a
      11             :  * copy of this software and associated documentation files (the "Software"),
      12             :  * to deal in the Software without restriction, including without limitation
      13             :  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
      14             :  * and/or sell copies of the Software, and to permit persons to whom the
      15             :  * Software is furnished to do so, subject to the following conditions:
      16             :  *
      17             :  * The above copyright notice and this permission notice shall be included
      18             :  * in all copies or substantial portions of the Software.
      19             :  *
      20             :  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
      21             :  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
      22             :  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
      23             :  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
      24             :  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
      25             :  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
      26             :  * DEALINGS IN THE SOFTWARE.
      27             :  ****************************************************************************/
      28             : #ifndef INCLUDE_PCIDSK_IO_H
      29             : #define INCLUDE_PCIDSK_IO_H
      30             : 
      31             : #include "pcidsk_config.h"
      32             : 
      33             : #include <string>
      34             : 
      35             : namespace PCIDSK
      36             : {
      37             : /************************************************************************/
      38             : /*                             IOInterfaces                             */
      39             : /************************************************************************/
      40             : 
      41             : //! IO Interface class.
      42             : 
      43             :     class IOInterfaces
      44             :     {
      45             :     public:
      46          14 :         virtual ~IOInterfaces() {}
      47             :         virtual void   *Open( const std::string& filename, std::string access ) const = 0;
      48             :         virtual uint64  Seek( void *io_handle, uint64 offset, int whence ) const = 0;
      49             :         virtual uint64  Tell( void *io_handle ) const = 0;
      50             :         virtual uint64  Read( void *buffer, uint64 size, uint64 nmemb, void *io_handle ) const = 0;
      51             :         virtual uint64  Write( const void *buffer, uint64 size, uint64 nmemb, void *io_handle ) const = 0;
      52             :         virtual int     Eof( void *io_handle ) const = 0;
      53             :         virtual int     Flush( void *io_handle ) const = 0;
      54             :         virtual int     Close( void *io_handle ) const = 0;
      55             :     };
      56             : 
      57             :     const IOInterfaces PCIDSK_DLL *GetDefaultIOInterfaces();
      58             : 
      59             : } // end namespace PCIDSK
      60             : 
      61             : #endif // INCLUDE_PCIDSK_IO_H