Panda3D
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00001 // Filename: datagramInputFile.h 00002 // Created by: drose (30Oct00) 00003 // 00004 //////////////////////////////////////////////////////////////////// 00005 // 00006 // PANDA 3D SOFTWARE 00007 // Copyright (c) Carnegie Mellon University. All rights reserved. 00008 // 00009 // All use of this software is subject to the terms of the revised BSD 00010 // license. You should have received a copy of this license along 00011 // with this source code in a file named "LICENSE." 00012 // 00013 //////////////////////////////////////////////////////////////////// 00014 00015 #ifndef DATAGRAMINPUTFILE_H 00016 #define DATAGRAMINPUTFILE_H 00017 00018 #include "pandabase.h" 00019 00020 #include "datagramGenerator.h" 00021 #include "filename.h" 00022 #include "virtualFile.h" 00023 00024 //////////////////////////////////////////////////////////////////// 00025 // Class : DatagramInputFile 00026 // Description : This class can be used to read a binary file that 00027 // consists of an arbitrary header followed by a number 00028 // of datagrams. 00029 //////////////////////////////////////////////////////////////////// 00030 class EXPCL_PANDA_PUTIL DatagramInputFile : public DatagramGenerator { 00031 public: 00032 INLINE DatagramInputFile(); 00033 00034 bool open(Filename filename); 00035 bool open(istream &in); 00036 00037 void close(); 00038 00039 bool read_header(string &header, size_t num_bytes); 00040 virtual bool get_datagram(Datagram &data); 00041 virtual bool is_eof(); 00042 virtual bool is_error(); 00043 00044 virtual VirtualFile *get_file(); 00045 virtual streampos get_file_pos(); 00046 00047 private: 00048 bool _read_first_datagram; 00049 bool _error; 00050 PT(VirtualFile) _vfile; 00051 pifstream _in_file; 00052 istream *_in; 00053 bool _owns_in; 00054 }; 00055 00056 #include "datagramInputFile.I" 00057 00058 #endif