00001 /********************************************************************** 00002 * $Id: ByteOrderDataInStream.h 2579 2009-06-15 14:03:52Z strk $ 00003 * 00004 * GEOS - Geometry Engine Open Source 00005 * http://geos.refractions.net 00006 * 00007 * Copyright (C) 2005-2006 Refractions Research Inc. 00008 * Copyright (C) 2001-2002 Vivid Solutions Inc. 00009 * 00010 * This is free software; you can redistribute and/or modify it under 00011 * the terms of the GNU Lesser General Public Licence as published 00012 * by the Free Software Foundation. 00013 * See the COPYING file for more information. 00014 * 00015 ********************************************************************** 00016 * 00017 * Last port: io/ByteOrderDataInStream.java rev. 1.1 (JTS-1.10) 00018 * 00019 **********************************************************************/ 00020 00021 #ifndef GEOS_IO_BYTEORDERDATAINSTREAM_H 00022 #define GEOS_IO_BYTEORDERDATAINSTREAM_H 00023 00024 #include <geos/export.h> 00025 00026 //#include <geos/platform.h> 00027 //#include <geos/io/ParseException.h> 00028 //#include <geos/io/ByteOrderValues.h> 00029 #include <geos/inline.h> 00030 00031 #include <iosfwd> // ostream, istream (if we remove inlines) 00032 00033 namespace geos { 00034 namespace io { 00035 00036 /* 00037 * \class ByteOrderDataInStream io.h geos.h 00038 * 00039 * Allows reading an stream of primitive datatypes from an underlying 00040 * istream, with the representation being in either common byte ordering. 00041 * 00042 */ 00043 class GEOS_DLL ByteOrderDataInStream { 00044 00045 public: 00046 00047 ByteOrderDataInStream(std::istream *s=NULL); 00048 00049 ~ByteOrderDataInStream(); 00050 00055 void setInStream(std::istream *s); 00056 00057 void setOrder(int order); 00058 00059 unsigned char readByte(); // throws ParseException 00060 00061 int readInt(); // throws ParseException 00062 00063 long readLong(); // throws ParseException 00064 00065 double readDouble(); // throws ParseException 00066 00067 private: 00068 int byteOrder; 00069 std::istream *stream; 00070 00071 // buffers to hold primitive datatypes 00072 unsigned char buf[8]; 00073 00074 }; 00075 00076 } // namespace io 00077 } // namespace geos 00078 00079 #ifdef GEOS_INLINE 00080 #include <geos/io/ByteOrderDataInStream.inl> 00081 #endif 00082 00083 #endif // #ifndef GEOS_IO_BYTEORDERDATAINSTREAM_H 00084 00085 /********************************************************************** 00086 * $Log$ 00087 * Revision 1.2 2006/03/28 11:26:13 strk 00088 * ByteOrderDataInStream inlines moved to .inl file, updated 00089 * implementation files includes. 00090 * 00091 * Revision 1.1 2006/03/20 18:18:14 strk 00092 * io.h header split 00093 * 00094 **********************************************************************/