1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
|
// distribution boxbackup-0.10 (svn version: 494)
//
// Copyright (c) 2003 - 2006
// Ben Summers and contributors. All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions
// are met:
// 1. Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// 2. Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the distribution.
// 3. All use of this software and associated advertising materials must
// display the following acknowledgment:
// This product includes software developed by Ben Summers.
// 4. The names of the Authors may not be used to endorse or promote
// products derived from this software without specific prior written
// permission.
//
// [Where legally impermissible the Authors do not disclaim liability for
// direct physical injury or death caused solely by defects in the software
// unless it is modified by a third party.]
//
// THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR
// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
// DISCLAIMED. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT,
// INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
// ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
// POSSIBILITY OF SUCH DAMAGE.
//
//
//
// --------------------------------------------------------------------------
//
// File
// Name: StreamableMemBlock.h
// Purpose: Memory blocks which can be loaded and saved from streams
// Created: 2003/09/05
//
// --------------------------------------------------------------------------
#ifndef STREAMABLEMEMBLOCK__H
#define STREAMABLEMEMBLOCK__H
class IOStream;
// --------------------------------------------------------------------------
//
// Class
// Name: StreamableMemBlock
// Purpose: Memory blocks which can be loaded and saved from streams
// Created: 2003/09/05
//
// --------------------------------------------------------------------------
class StreamableMemBlock
{
public:
StreamableMemBlock();
StreamableMemBlock(int Size);
StreamableMemBlock(void *pBuffer, int Size);
StreamableMemBlock(const StreamableMemBlock &rToCopy);
~StreamableMemBlock();
void Set(const StreamableMemBlock &rBlock);
void Set(void *pBuffer, int Size);
void Set(IOStream &rStream, int Timeout);
StreamableMemBlock &operator=(const StreamableMemBlock &rBlock)
{
Set(rBlock);
return *this;
}
void ReadFromStream(IOStream &rStream, int Timeout);
void WriteToStream(IOStream &rStream) const;
static void WriteEmptyBlockToStream(IOStream &rStream);
void *GetBuffer() const;
// Size of block
int GetSize() const {return mSize;}
// Buffer empty?
bool IsEmpty() const {return mSize == 0;}
// Clear the contents of the block
void Clear() {FreeBlock();}
bool operator==(const StreamableMemBlock &rCompare) const;
void ResizeBlock(int Size);
protected: // be careful with these!
void AllocateBlock(int Size);
void FreeBlock();
private:
void *mpBuffer;
int mSize;
};
#endif // STREAMABLEMEMBLOCK__H
|
