library/cpp/tvmauth/client/misc/disk_cache.h


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

#pragma once 
 
#include <util/datetime/base.h> 
#include <util/generic/string.h> 
 
namespace NTvmAuth { 
    class ILogger; 
 
    class TDiskReader { 
    public: 
        TDiskReader(const TString& filename, ILogger* logger = nullptr); 
 
        bool Read(); 
 
        const TString& Data() const { 
            return Data_; 
        } 
 
        TInstant Time() const { 
            return Time_; 
        } 
 
    public: // for tests 
        bool ParseData(TStringBuf buf); 
 
        static TString GetHash(TStringBuf data); 
        static time_t GetTimestamp(TStringBuf data); 
 
    private: 
        TString Filename_; 
        ILogger* Logger_; 
        TInstant Time_; 
        TString Data_; 
    }; 
 
    class TDiskWriter { 
    public: 
        TDiskWriter(const TString& filename, ILogger* logger = nullptr); 
 
        bool Write(TStringBuf data, TInstant now = TInstant::Now()); 
 
    public: // for tests 
        static TString PrepareData(TInstant time, TStringBuf data); 
        static TString WriteTimestamp(time_t time); 
 
    private: 
        TString Filename_; 
        ILogger* Logger_; 
    }; 
}