MPQC  2.3.1
state_bin.h
1 //
2 // state_bin.h
3 //
4 // Copyright (C) 1996 Limit Point Systems, Inc.
5 //
6 // Author: Curtis Janssen <cljanss@limitpt.com>
7 // Maintainer: LPS
8 //
9 // This file is part of the SC Toolkit.
10 //
11 // The SC Toolkit is free software; you can redistribute it and/or modify
12 // it under the terms of the GNU Library General Public License as published by
13 // the Free Software Foundation; either version 2, or (at your option)
14 // any later version.
15 //
16 // The SC Toolkit is distributed in the hope that it will be useful,
17 // but WITHOUT ANY WARRANTY; without even the implied warranty of
18 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 // GNU Library General Public License for more details.
20 //
21 // You should have received a copy of the GNU Library General Public License
22 // along with the SC Toolkit; see the file COPYING.LIB. If not, write to
23 // the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
24 //
25 // The U.S. Government is granted a limited license as per AL 91-7.
26 //
27 
28 #ifndef _util_state_state_bin_h
29 #define _util_state_state_bin_h
30 
31 #ifdef __GNUC__
32 #pragma interface
33 #endif
34 
35 #include <util/state/state_file.h>
36 
37 namespace sc {
38 
41 class StateOutBin: public StateOutFile {
42  private:
43  int file_position_;
44  // do not allow copy constructor or assignment
45  StateOutBin(const StateOutBin&);
46  void operator=(const StateOutBin&);
50  int put_array_void(const void*,int);
51  public:
52  StateOutBin();
53  StateOutBin(std::ostream&);
54  StateOutBin(const char *);
55  ~StateOutBin();
56 
57  int open(const char *name);
58  void close();
59 
60  int use_directory();
61 
62  int tell();
63  void seek(int loc);
64  int seekable();
65  };
66 
69 class StateInBin: public StateInFile {
70  private:
71  int file_position_;
72  // do not allow copy constructor or assignment
73  StateInBin(const StateInBin&);
74  void operator=(const StateInBin&);
78  int get_array_void(void*,int);
79  public:
80  StateInBin();
81  StateInBin(const Ref<KeyVal> &);
82  StateInBin(std::istream&);
83  StateInBin(const char *);
84  ~StateInBin();
85 
86  int open(const char *name);
87 
88  int use_directory();
89 
90  int tell();
91  void seek(int loc);
92  int seekable();
93  };
94 
95 }
96 
97 #endif
98 
99 // Local Variables:
100 // mode: c++
101 // c-file-style: "CLJ"
102 // End:
sc::StateInBin::seek
void seek(int loc)
Set the current position in the file.
sc::StateInFile
Reads state information from a file.
Definition: state_file.h:75
sc::StateOutBin::seek
void seek(int loc)
Set the current position in the file.
sc::StateInBin
Read objects written with StateOutBin.
Definition: state_bin.h:69
sc::Ref
A template class that maintains references counts.
Definition: ref.h:332
sc::StateInBin::open
int open(const char *name)
State information will be obtained from name.
sc::StateOutBin::close
void close()
Close the output stream.
sc::StateOutBin::use_directory
int use_directory()
Returns true if this object uses a directory.
sc::StateOutBin
Save state to a binary file.
Definition: state_bin.h:41
sc::StateInBin::tell
int tell()
Return the current position in the file.
sc::StateOutBin::tell
int tell()
Returns the current position in the file.
sc::StateOutFile
Writes state information to files.
Definition: state_file.h:47
sc::StateInBin::use_directory
int use_directory()
Returns true of this object uses a directory.
sc::StateInBin::seekable
int seekable()
Return non-zero if seek does anything sensible.
sc::StateOutBin::open
int open(const char *name)
State information will be written to name.
sc::StateOutBin::seekable
int seekable()
Return non-zero if tell and seek do anything sensible.
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