68 lines
1.4 KiB
C
68 lines
1.4 KiB
C
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/**
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* PANDA 3D SOFTWARE
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* Copyright (c) Carnegie Mellon University. All rights reserved.
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*
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* All use of this software is subject to the terms of the revised BSD
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* license. You should have received a copy of this license along
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* with this source code in a file named "LICENSE."
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*
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* @file fltRecordReader.h
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* @author drose
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* @date 2000-08-24
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*/
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#ifndef FLTRECORDREADER_H
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#define FLTRECORDREADER_H
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#include "pandatoolbase.h"
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#include "fltOpcode.h"
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#include "fltError.h"
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#include "datagram.h"
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#include "datagramIterator.h"
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/**
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* This class turns an istream into a sequence of FltRecords by reading a
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* sequence of Datagrams and extracting the opcode from each one. It
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* remembers where it is in the file and what the current record is.
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*/
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class FltRecordReader {
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public:
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FltRecordReader(std::istream &in);
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~FltRecordReader();
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FltOpcode get_opcode() const;
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DatagramIterator &get_iterator();
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const Datagram &get_datagram();
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int get_record_length() const;
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FltError advance(bool ok_eof = false);
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bool eof() const;
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bool error() const;
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private:
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void read_next_header();
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std::istream &_in;
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Datagram _datagram;
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FltOpcode _opcode;
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int _record_length;
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DatagramIterator *_iterator;
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FltError _next_error;
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FltOpcode _next_opcode;
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int _next_record_length;
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enum State {
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S_begin,
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S_normal,
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S_eof,
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S_error
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};
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State _state;
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};
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#endif
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