00001 /****************************************************************************** 00002 * 00003 * Purpose: PCIDSK I/O Interface declaration. The I/O interfaces for the 00004 * library can be overridden by an object implementing this class. 00005 * 00006 ****************************************************************************** 00007 * Copyright (c) 2009 00008 * PCI Geomatics, 50 West Wilmot Street, Richmond Hill, Ont, Canada 00009 * 00010 * Permission is hereby granted, free of charge, to any person obtaining a 00011 * copy of this software and associated documentation files (the "Software"), 00012 * to deal in the Software without restriction, including without limitation 00013 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 00014 * and/or sell copies of the Software, and to permit persons to whom the 00015 * Software is furnished to do so, subject to the following conditions: 00016 * 00017 * The above copyright notice and this permission notice shall be included 00018 * in all copies or substantial portions of the Software. 00019 * 00020 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 00021 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 00022 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 00023 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 00024 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 00025 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 00026 * DEALINGS IN THE SOFTWARE. 00027 ****************************************************************************/ 00028 #ifndef __INCLUDE_PCIDSK_IO_H 00029 #define __INCLUDE_PCIDSK_IO_H 00030 00031 #include "pcidsk_config.h" 00032 00033 #include <string> 00034 00035 namespace PCIDSK 00036 { 00037 /************************************************************************/ 00038 /* IOInterfaces */ 00039 /************************************************************************/ 00040 00042 00043 class IOInterfaces 00044 { 00045 public: 00046 virtual ~IOInterfaces() {} 00047 virtual void *Open( std::string filename, std::string access ) const = 0; 00048 virtual uint64 Seek( void *io_handle, uint64 offset, int whence ) const = 0; 00049 virtual uint64 Tell( void *io_handle ) const = 0; 00050 virtual uint64 Read( void *buffer, uint64 size, uint64 nmemb, void *io_handle ) const = 0; 00051 virtual uint64 Write( const void *buffer, uint64 size, uint64 nmemb, void *io_handle ) const = 0; 00052 virtual int Eof( void *io_handle ) const = 0; 00053 virtual int Flush( void *io_handle ) const = 0; 00054 virtual int Close( void *io_handle ) const = 0; 00055 }; 00056 00057 const IOInterfaces PCIDSK_DLL *GetDefaultIOInterfaces(); 00058 00059 } // end namespace PCIDSK 00060 00061 #endif // __INCLUDE_PCIDSK_IO_H