blob: b9971c3d85554e19b15d65288af4aac886c46eb2 (
plain)
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
|
// **********************************************************************
//
// Copyright (c) 2003-2016 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_UTIL_SHARED_H
#define ICE_UTIL_SHARED_H
#include <IceUtil/Config.h>
#include <IceUtil/Atomic.h>
//
// Base classes for reference counted types. The IceUtil::Handle
// template can be used for smart pointers to types derived from these
// bases.
//
// IceUtil::SimpleShared
// =====================
//
// A non thread-safe base class for reference-counted types.
//
// IceUtil::Shared
// ===============
//
// A thread-safe base class for reference-counted types.
//
namespace IceUtil
{
class ICE_API SimpleShared
{
public:
SimpleShared();
SimpleShared(const SimpleShared&);
virtual ~SimpleShared();
SimpleShared& operator=(const SimpleShared&)
{
return *this;
}
void iceIncRef()
{
assert(_ref >= 0);
++_ref;
}
void iceDecRef()
{
assert(_ref > 0);
if(--_ref == 0)
{
if(!_noDelete)
{
delete this;
}
}
}
int iceGetRef() const
{
return _ref;
}
void iceSetNoDelete(bool b)
{
_noDelete = b;
}
private:
int _ref;
bool _noDelete;
};
class ICE_API Shared
{
public:
//
// Flag constant used by the Shared class. Derived classes
// such as GCObject define more flag constants.
//
static const unsigned char NoDelete;
Shared();
Shared(const Shared&);
virtual ~Shared()
{
}
Shared& operator=(const Shared&)
{
return *this;
}
virtual void iceIncRef();
virtual void iceDecRef();
virtual int iceGetRef() const;
virtual void iceSetNoDelete(bool);
void iceSetFlag(unsigned char flag)
{
_flags |= flag;
}
void iceClearFlag(unsigned char flag)
{
_flags &= ~flag;
}
bool iceHasFlag(unsigned char flag)
{
return (_flags & flag) > 0;
}
protected:
IceUtilInternal::Atomic _ref;
unsigned char _flags;
};
}
#endif
|
