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
|
// **************************************************************************
// * This file is part of the FreeFileSync project. It is distributed under *
// * GNU General Public License: http://www.gnu.org/licenses/gpl.html *
// * Copyright (C) 2008-2011 ZenJu (zhnmju123 AT gmx.de) *
// **************************************************************************
#ifndef PARALLEL_SCAN_H_INCLUDED
#define PARALLEL_SCAN_H_INCLUDED
#include <map>
#include <set>
#include "hard_filter.h"
#include "../structures.h"
#include "../file_hierarchy.h"
namespace zen
{
struct DirectoryKey
{
DirectoryKey(const Zstring& dirnameFull,
const HardFilter::FilterRef& filter,
SymLinkHandling handleSymlinks) :
dirnameFull_(dirnameFull),
filter_(filter),
handleSymlinks_(handleSymlinks) {}
Zstring dirnameFull_;
HardFilter::FilterRef filter_; //filter interface: always bound by design!
SymLinkHandling handleSymlinks_;
};
inline
bool operator<(const DirectoryKey& lhs, const DirectoryKey& rhs)
{
if (lhs.handleSymlinks_ != rhs.handleSymlinks_)
return lhs.handleSymlinks_ < rhs.handleSymlinks_;
if (!EqualFilename()(lhs.dirnameFull_, rhs.dirnameFull_))
return LessFilename()(lhs.dirnameFull_, rhs.dirnameFull_);
return *lhs.filter_ < *rhs.filter_;
}
struct DirectoryValue
{
DirContainer dirCont;
std::set<Zstring> failedReads; //relative postfixed names of directories that could not be read (empty string for root), e.g. access denied, or temporal network drop
};
class FillBufferCallback
{
public:
virtual ~FillBufferCallback() {}
enum HandleError
{
TRAV_ERROR_RETRY,
TRAV_ERROR_IGNORE
};
virtual HandleError reportError (const std::wstring& errorText) = 0; //may throw!
virtual void reportStatus(const std::wstring& statusMsg, int itemTotal) = 0; //
};
//attention: ensure directory filtering is applied later to exclude filtered directories which have been kept as parent folders
void fillBuffer(const std::set<DirectoryKey>& keysToRead, //in
std::map<DirectoryKey, DirectoryValue>& buf, //out
FillBufferCallback& callback,
size_t statusInterval); //unit: [ms]
}
#endif // PARALLEL_SCAN_H_INCLUDED
|
