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
|
#ifndef BlockCache_H
# define BlockCache_H
// Cache to hold an arbitrary-length block of bytes
class BlockCache
{
public:
BlockCache():buffer_(0), size_(0), checksum_(0)
{
}
~BlockCache()
{
delete[]buffer_;
}
int compare(unsigned int size, const unsigned char *data,
int overwrite = 1);
void set(unsigned int size, const unsigned char *data);
unsigned int getLength() const
{
return size_;
}
unsigned int getChecksum() const
{
return checksum_;
}
const unsigned char *getData() const
{
return buffer_;
}
static unsigned int checksum(unsigned int size,
const unsigned char *data);
private:
unsigned char *buffer_;
unsigned int size_;
unsigned int checksum_;
};
#endif /* BlockCache_H */
|
