Panda3D
fltRecordWriter.h
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1 /**
2  * PANDA 3D SOFTWARE
3  * Copyright (c) Carnegie Mellon University. All rights reserved.
4  *
5  * All use of this software is subject to the terms of the revised BSD
6  * license. You should have received a copy of this license along
7  * with this source code in a file named "LICENSE."
8  *
9  * @file fltRecordWriter.h
10  * @author drose
11  * @date 2000-08-24
12  */
13 
14 #ifndef FLTRECORDWRITER_H
15 #define FLTRECORDWRITER_H
16 
17 #include "pandatoolbase.h"
18 
19 #include "fltOpcode.h"
20 #include "fltError.h"
21 
22 #include "datagram.h"
23 #include "pset.h"
24 
25 class FltHeader;
26 
27 /**
28  * This class writes a sequence of FltRecords to an ostream, handling opcode
29  * and size counts properly.
30  */
32 public:
33  FltRecordWriter(std::ostream &out);
34  ~FltRecordWriter();
35 
36  void set_opcode(FltOpcode opcode);
37  const Datagram &get_datagram() const;
38  void set_datagram(const Datagram &datagram);
40 
41  FltError advance();
42 
43  FltError write_record(FltOpcode opcode,
44  const Datagram &datagram = Datagram());
45 
46  FltError write_instance_def(FltHeader *header, int instance_index);
47 
48 private:
49  std::ostream &_out;
50  Datagram _datagram;
51  FltOpcode _opcode;
52 
53  typedef pset<int> Instances;
54  Instances _instances_written;
55 };
56 
57 #endif
fltOpcode.h
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
FltRecordWriter
This class writes a sequence of FltRecords to an ostream, handling opcode and size counts properly.
Definition: fltRecordWriter.h:31
FltRecordWriter::write_instance_def
FltError write_instance_def(FltHeader *header, int instance_index)
Ensures that the given instance definition has already been written to the file.
Definition: fltRecordWriter.cxx:136
FltRecordWriter::set_datagram
void set_datagram(const Datagram &datagram)
Sets the datagram that will be written when advance() is called.
Definition: fltRecordWriter.cxx:55
Datagram
An ordered list of data elements, formatted in memory for transmission over a socket or writing to a ...
Definition: datagram.h:38
fltError.h
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
FltHeader
This is the first bead in the file, the top of the bead hierarchy, and the primary interface to readi...
Definition: fltHeader.h:44
FltRecordWriter::set_opcode
void set_opcode(FltOpcode opcode)
Sets the opcode associated with the current record.
Definition: fltRecordWriter.cxx:47
FltRecordWriter::update_datagram
Datagram & update_datagram()
Returns a modifiable reference to the datagram associated with the current record.
Definition: fltRecordWriter.cxx:66
datagram.h
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
FltRecordWriter::write_record
FltError write_record(FltOpcode opcode, const Datagram &datagram=Datagram())
A convenience function to quickly write a simple record that consists of an opcode and possibly a dat...
Definition: fltRecordWriter.cxx:125
pset.h
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
pandatoolbase.h
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
FltRecordWriter::advance
FltError advance()
Writes the current record to the flt file, and resets the current record to receive new data.
Definition: fltRecordWriter.cxx:75
pset< int >