00001 /********************************************************************** 00002 * $Id: ByteOrderDataInStream.h 1820 2006-09-06 16:54:23Z mloskot $ 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 #ifndef GEOS_IO_BYTEORDERDATAINSTREAM_H 00018 #define GEOS_IO_BYTEORDERDATAINSTREAM_H 00019 00020 //#include <geos/platform.h> 00021 //#include <geos/io/ParseException.h> 00022 //#include <geos/io/ByteOrderValues.h> 00023 #include <geos/inline.h> 00024 00025 #include <iosfwd> // ostream, istream (if we remove inlines) 00026 00027 namespace geos { 00028 namespace io { 00029 00030 /* 00031 * \class ByteOrderDataInStream io.h geos.h 00032 * 00033 * Allows reading an stream of primitive datatypes from an underlying 00034 * istream, with the representation being in either common byte ordering. 00035 * 00036 */ 00037 class ByteOrderDataInStream { 00038 00039 public: 00040 00041 ByteOrderDataInStream(std::istream *s=NULL); 00042 00043 ~ByteOrderDataInStream(); 00044 00049 void setInStream(std::istream *s); 00050 00051 void setOrder(int order); 00052 00053 unsigned char readByte(); // throws ParseException 00054 00055 int readInt(); // throws ParseException 00056 00057 long readLong(); // throws ParseException 00058 00059 double readDouble(); // throws ParseException 00060 00061 private: 00062 int byteOrder; 00063 std::istream *stream; 00064 00065 // buffers to hold primitive datatypes 00066 unsigned char buf[8]; 00067 00068 }; 00069 00070 } // namespace io 00071 } // namespace geos 00072 00073 #ifdef GEOS_INLINE 00074 #include <geos/io/ByteOrderDataInStream.inl> 00075 #endif 00076 00077 #endif // #ifndef GEOS_IO_BYTEORDERDATAINSTREAM_H 00078 00079 /********************************************************************** 00080 * $Log$ 00081 * Revision 1.2 2006/03/28 11:26:13 strk 00082 * ByteOrderDataInStream inlines moved to .inl file, updated 00083 * implementation files includes. 00084 * 00085 * Revision 1.1 2006/03/20 18:18:14 strk 00086 * io.h header split 00087 * 00088 **********************************************************************/