aboutsummaryrefslogtreecommitdiffstats
path: root/library/cpp/logger/backend.cpp
blob: e0ea81471dcd40b8a0dc3da499830d6a0ba5e860 (plain) (blame)
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
#include "backend.h"
#include <util/generic/vector.h> 
#include <util/system/mutex.h> 
#include <util/generic/singleton.h> 
#include <util/generic/yexception.h>

namespace { 
    class TGlobalLogsStorage { 
    private: 
        TVector<TLogBackend*> Backends;
        TMutex Mutex; 

    public: 
        void Register(TLogBackend* backend) { 
            TGuard<TMutex> g(Mutex); 
            Backends.push_back(backend); 
        } 
 
        void UnRegister(TLogBackend* backend) { 
            TGuard<TMutex> g(Mutex); 
            for (ui32 i = 0; i < Backends.size(); ++i) { 
                if (Backends[i] == backend) { 
                    Backends.erase(Backends.begin() + i); 
                    return; 
                } 
            } 
            Y_FAIL("Incorrect pointer for log backend");
        } 
 
        void Reopen(bool flush) {
            TGuard<TMutex> g(Mutex); 
            for (auto& b : Backends) { 
                if (flush) {
                    b->ReopenLog();
                } else {
                    b->ReopenLogNoFlush();
                }
            } 
        } 
    }; 
} 
 
template <>
class TSingletonTraits<TGlobalLogsStorage> { 
public: 
    static const size_t Priority = 50; 
}; 
 
ELogPriority TLogBackend::FiltrationLevel() const {
    return LOG_MAX_PRIORITY; 
} 
 
TLogBackend::TLogBackend() noexcept {
    Singleton<TGlobalLogsStorage>()->Register(this); 
}

TLogBackend::~TLogBackend() {
    Singleton<TGlobalLogsStorage>()->UnRegister(this); 
}
 
void TLogBackend::ReopenLogNoFlush() {
    ReopenLog();
} 

void TLogBackend::ReopenAllBackends(bool flush) {
    Singleton<TGlobalLogsStorage>()->Reopen(flush);
}

size_t TLogBackend::QueueSize() const {
    ythrow yexception() << "Not implemented.";
}