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
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
|
// **********************************************************************
//
// Copyright (c) 2003-2012 ZeroC, Inc. All rights reserved.
//
// This copy of Ice is licensed to you under the terms described in the
// ICE_LICENSE file included in this distribution.
//
// **********************************************************************
#ifndef ICE_METRICSFUNCTIONAL_H
#define ICE_METRICSFUNCTIONAL_H
namespace IceMX
{
template<typename R> struct ReferenceWrapper
{
static R* get(const R& v)
{
return const_cast<R*>(&v);
}
};
template<typename R> struct ReferenceWrapper<IceUtil::Handle<R> >
{
static R* get(const IceUtil::Handle<R>& v)
{
return v.get();
}
};
template<typename R> struct ReferenceWrapper<const IceUtil::Handle<R>& >
{
static R* get(const IceUtil::Handle<R>& v)
{
return v.get();
}
};
template<typename R> struct ReferenceWrapper<IceInternal::ProxyHandle<R> >
{
static R* get(const IceInternal::ProxyHandle<R>& v)
{
return v.get();
}
};
template<typename R> struct ReferenceWrapper<const IceInternal::ProxyHandle<R>& >
{
static R* get(const IceInternal::ProxyHandle<R>& v)
{
return v.get();
}
};
template<typename R> struct ReferenceWrapper<IceInternal::Handle<R> >
{
static R* get(const IceInternal::Handle<R>& v)
{
return v.get();
}
};
template<typename R> struct ReferenceWrapper<const IceInternal::Handle<R>& >
{
static R* get(const IceInternal::Handle<R>& v)
{
return v.get();
}
};
template<typename R> struct ReferenceWrapper<R*>
{
static R* get(R* v)
{
return v;
}
};
template<typename R> struct ReferenceWrapper<const R&>
{
static R* get(const R& v)
{
return const_cast<R*>(&v);
}
};
template<class T, typename Y, typename Func> struct ApplyOnMember
{
ApplyOnMember(Y T::*member, Func func) : func(func), member(member)
{
}
template<typename R>
void operator()(const R& v)
{
func(ReferenceWrapper<R>::get(v)->*member);
}
Func func;
Y T::*member;
};
template<typename T> struct Decrement
{
void operator()(T& v)
{
--v;
}
};
template<typename T> struct Increment
{
void operator()(T& v)
{
++v;
}
};
template<typename T> struct Add
{
Add(T value) : value(value) { }
template<typename Y>
void operator()(Y& v)
{
v += value;
}
T value;
};
template<class T, typename Y, typename F> ApplyOnMember<T, Y, F> applyOnMember(Y T::*member, F func)
{
return ApplyOnMember<T, Y, F>(member, func);
}
template<class T, typename Y, typename V> ApplyOnMember<T, Y, Add<V> > add(Y T::*member, V value)
{
return applyOnMember(member, Add<V>(value));
}
template<class T, typename Y> ApplyOnMember<T, Y, Increment<Y> > inc(Y T::*member)
{
return applyOnMember(member, Increment<Y>());
}
template<class T, typename Y> ApplyOnMember<T, Y, Decrement<Y> > dec(Y T::*member)
{
return applyOnMember(member, Decrement<Y>());
}
}
#endif
|
