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
110
111
112
113
|
#pragma once
#include "udf_types.h"
#include "udf_type_size_check.h"
#include <library/cpp/deprecated/atomic/atomic.h>
namespace NYql {
namespace NUdf {
class TCounter {
public:
TCounter(i64* ptr = nullptr)
: Ptr_(ptr)
{}
void Inc() {
if (Ptr_) {
AtomicIncrement(AsAtomic());
}
}
void Dec() {
if (Ptr_) {
AtomicDecrement(AsAtomic());
}
}
void Add(i64 delta) {
if (Ptr_) {
AtomicAdd(AsAtomic(), delta);
}
}
void Sub(i64 delta) {
if (Ptr_) {
AtomicSub(AsAtomic(), delta);
}
}
void Set(i64 value) {
if (Ptr_) {
AtomicSet(AsAtomic(), value);
}
}
private:
TAtomic& AsAtomic() {
return *reinterpret_cast<TAtomic*>(Ptr_);
}
private:
i64* Ptr_;
};
UDF_ASSERT_TYPE_SIZE(TCounter, 8);
class IScopedProbeHost {
public:
virtual ~IScopedProbeHost() = default;
virtual void Acquire(void* cookie) = 0;
virtual void Release(void* cookie) = 0;
};
UDF_ASSERT_TYPE_SIZE(IScopedProbeHost, 8);
class TScopedProbe {
public:
TScopedProbe(IScopedProbeHost* host = nullptr, void* cookie = nullptr)
: Host_(host ? host : &NullHost_)
, Cookie_(cookie)
{}
void Acquire() {
Host_->Acquire(Cookie_);
}
void Release() {
Host_->Release(Cookie_);
}
private:
class TNullHost : public IScopedProbeHost {
public:
void Acquire(void* cookie) override {
Y_UNUSED(cookie);
}
void Release(void* cookie) override {
Y_UNUSED(cookie);
}
};
IScopedProbeHost* Host_;
void* Cookie_;
static TNullHost NullHost_;
};
UDF_ASSERT_TYPE_SIZE(TScopedProbe, 16);
class ICountersProvider {
public:
virtual ~ICountersProvider() = default;
virtual TCounter GetCounter(const TStringRef& module, const TStringRef& name, bool deriv) = 0;
virtual TScopedProbe GetScopedProbe(const TStringRef& module, const TStringRef& name) = 0;
};
UDF_ASSERT_TYPE_SIZE(ICountersProvider, 8);
} // namspace NUdf
} // namspace NYql
|
