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authorMike Buland <eichlan@xagasoft.com>2012-11-05 22:41:51 +0000
committerMike Buland <eichlan@xagasoft.com>2012-11-05 22:41:51 +0000
commitec05778d5718a7912e506764d443a78d6a6179e3 (patch)
tree78a9a01532180030c095acefc45763f07c14edb8 /src/stable/sptr.h
parentb20414ac1fe80a71a90601f4cd1767fa7014a9ba (diff)
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Diffstat (limited to 'src/stable/sptr.h')
-rw-r--r--src/stable/sptr.h422
1 files changed, 211 insertions, 211 deletions
diff --git a/src/stable/sptr.h b/src/stable/sptr.h
index 58ea223..6a9c340 100644
--- a/src/stable/sptr.h
+++ b/src/stable/sptr.h
@@ -13,217 +13,217 @@
13 13
14namespace Bu 14namespace Bu
15{ 15{
16 template<typename T> class SPtr; 16 template<typename T> class SPtr;
17 template< typename Tb, typename Ta > SPtr<Tb> SPtrCast( SPtr<Ta> src ); 17 template< typename Tb, typename Ta > SPtr<Tb> SPtrCast( SPtr<Ta> src );
18 18
19 /** 19 /**
20 *@ingroup Containers 20 *@ingroup Containers
21 */ 21 */
22 template<typename T> 22 template<typename T>
23 class SPtr 23 class SPtr
24 { 24 {
25 template<typename Tb, typename Ta> 25 template<typename Tb, typename Ta>
26 friend SPtr<Tb> SPtrCast( SPtr<Ta> pt ); 26 friend SPtr<Tb> SPtrCast( SPtr<Ta> pt );
27 public: 27 public:
28 SPtr() : 28 SPtr() :
29 pRefCnt( NULL ), 29 pRefCnt( NULL ),
30 pData( NULL ) 30 pData( NULL )
31 { 31 {
32 } 32 }
33 33
34 ~SPtr() 34 ~SPtr()
35 { 35 {
36 decCount(); 36 decCount();
37 } 37 }
38 38
39 SPtr( const SPtr<T> &src ) : 39 SPtr( const SPtr<T> &src ) :
40 pRefCnt( src.pRefCnt ), 40 pRefCnt( src.pRefCnt ),
41 pData( src.pData ) 41 pData( src.pData )
42 { 42 {
43 if( pRefCnt ) 43 if( pRefCnt )
44 (*pRefCnt) += 1; 44 (*pRefCnt) += 1;
45 } 45 }
46 46
47 SPtr( T *pSrc ) : 47 SPtr( T *pSrc ) :
48 pRefCnt( NULL ), 48 pRefCnt( NULL ),
49 pData( pSrc ) 49 pData( pSrc )
50 { 50 {
51 if( pData ) 51 if( pData )
52 { 52 {
53 pRefCnt = new int32_t; 53 pRefCnt = new int32_t;
54 (*pRefCnt) = 1; 54 (*pRefCnt) = 1;
55 } 55 }
56 } 56 }
57 57
58 /** 58 /**
59 * Get the number of references to this pointer. 59 * Get the number of references to this pointer.
60 *@returns (int32_t) The number of references to this pointer. 60 *@returns (int32_t) The number of references to this pointer.
61 */ 61 */
62 int32_t getRefCount() const 62 int32_t getRefCount() const
63 { 63 {
64 return *pRefCnt; 64 return *pRefCnt;
65 } 65 }
66 66
67 void clear() 67 void clear()
68 { 68 {
69 decCount(); 69 decCount();
70 pRefCnt = NULL; 70 pRefCnt = NULL;
71 pData = NULL; 71 pData = NULL;
72 } 72 }
73 73
74 /** 74 /**
75 * Pointer access operator. 75 * Pointer access operator.
76 *@returns (const T *) 76 *@returns (const T *)
77 */ 77 */
78 const T *operator->() const 78 const T *operator->() const
79 { 79 {
80 return pData; 80 return pData;
81 } 81 }
82 82
83 /** 83 /**
84 * Dereference operator. 84 * Dereference operator.
85 *@returns (const T &) The value at the end of the pointer. 85 *@returns (const T &) The value at the end of the pointer.
86 */ 86 */
87 const T &operator*() const 87 const T &operator*() const
88 { 88 {
89 return *pData; 89 return *pData;
90 } 90 }
91 91
92 /** 92 /**
93 * Pointer access operator. 93 * Pointer access operator.
94 *@returns (T *) 94 *@returns (T *)
95 */ 95 */
96 T *operator->() 96 T *operator->()
97 { 97 {
98 return pData; 98 return pData;
99 } 99 }
100 100
101 /** 101 /**
102 * Dereference operator. 102 * Dereference operator.
103 *@returns (T &) The value at the end of the pointer. 103 *@returns (T &) The value at the end of the pointer.
104 */ 104 */
105 T &operator*() 105 T &operator*()
106 { 106 {
107 return *pData; 107 return *pData;
108 } 108 }
109 109
110 /** 110 /**
111 * Assignment operator. 111 * Assignment operator.
112 *@param src (const SPtr<T> &) 112 *@param src (const SPtr<T> &)
113 */ 113 */
114 SPtr<T> operator=( const SPtr<T> &src ) 114 SPtr<T> operator=( const SPtr<T> &src )
115 { 115 {
116 decCount(); 116 decCount();
117 pRefCnt = src.pRefCnt; 117 pRefCnt = src.pRefCnt;
118 pData = src.pData; 118 pData = src.pData;
119 if( pRefCnt ) 119 if( pRefCnt )
120 (*pRefCnt) += 1; 120 (*pRefCnt) += 1;
121 121
122 return *this; 122 return *this;
123 } 123 }
124 124
125 /** 125 /**
126 * Assignment operator. 126 * Assignment operator.
127 *@param src (const SPtr<T> &) 127 *@param src (const SPtr<T> &)
128 */ 128 */
129 const SPtr<T> operator=( const SPtr<T> &src ) const 129 const SPtr<T> operator=( const SPtr<T> &src ) const
130 { 130 {
131 decCount(); 131 decCount();
132 pRefCnt = src.pRefCnt; 132 pRefCnt = src.pRefCnt;
133 pData = src.pData; 133 pData = src.pData;
134 if( pRefCnt ) 134 if( pRefCnt )
135 (*pRefCnt) += 1; 135 (*pRefCnt) += 1;
136 136
137 return *this; 137 return *this;
138 } 138 }
139 139
140 /** 140 /**
141 * Equals comparison operator. 141 * Equals comparison operator.
142 *@param src (const SPtr<T> &) The SPtr to compare to. 142 *@param src (const SPtr<T> &) The SPtr to compare to.
143 *@returns (bool) Are the equal? 143 *@returns (bool) Are the equal?
144 */ 144 */
145 bool operator==( const SPtr<T> &src ) const 145 bool operator==( const SPtr<T> &src ) const
146 { 146 {
147 return pData == src.pData; 147 return pData == src.pData;
148 } 148 }
149 149
150 /** 150 /**
151 * Equals comparison operator. 151 * Equals comparison operator.
152 *@param src (const T *) The pointer to compare to. 152 *@param src (const T *) The pointer to compare to.
153 *@returns (bool) Are the equal? 153 *@returns (bool) Are the equal?
154 */ 154 */
155 bool operator==( const T *src ) const 155 bool operator==( const T *src ) const
156 { 156 {
157 return pData == src; 157 return pData == src;
158 } 158 }
159 159
160 /** 160 /**
161 * Not equals comparison operator. 161 * Not equals comparison operator.
162 *@param src (const SPtr<T> &) The SPtr to compare to. 162 *@param src (const SPtr<T> &) The SPtr to compare to.
163 *@returns (bool) Are the equal? 163 *@returns (bool) Are the equal?
164 */ 164 */
165 bool operator!=( const SPtr<T> &src ) const 165 bool operator!=( const SPtr<T> &src ) const
166 { 166 {
167 return !(pData == src.pData); 167 return !(pData == src.pData);
168 } 168 }
169 169
170 /** 170 /**
171 * Not equals comparison operator. 171 * Not equals comparison operator.
172 *@param src (const T *) The pointer to compare to. 172 *@param src (const T *) The pointer to compare to.
173 *@returns (bool) Are the equal? 173 *@returns (bool) Are the equal?
174 */ 174 */
175 bool operator!=( const T *src ) const 175 bool operator!=( const T *src ) const
176 { 176 {
177 return !(pData == src); 177 return !(pData == src);
178 } 178 }
179 179
180 /** 180 /**
181 * Boolean cast operator. Do we have a pointer? 181 * Boolean cast operator. Do we have a pointer?
182 */ 182 */
183 operator bool() const 183 operator bool() const
184 { 184 {
185 return pRefCnt != NULL; 185 return pRefCnt != NULL;
186 } 186 }
187 187
188 /** 188 /**
189 * Do we have a pointer? 189 * Do we have a pointer?
190 *@returns (bool) Do we have a pointer? 190 *@returns (bool) Do we have a pointer?
191 */ 191 */
192 bool isSet() const 192 bool isSet() const
193 { 193 {
194 return pRefCnt != NULL; 194 return pRefCnt != NULL;
195 } 195 }
196 196
197 private: 197 private:
198 void decCount() const 198 void decCount() const
199 { 199 {
200 if( pRefCnt ) 200 if( pRefCnt )
201 { 201 {
202 (*pRefCnt) -= 1; 202 (*pRefCnt) -= 1;
203 //printf("Decrementing ref-count to %d\n", *pRefCnt ); 203 //printf("Decrementing ref-count to %d\n", *pRefCnt );
204 if( (*pRefCnt) == 0 ) 204 if( (*pRefCnt) == 0 )
205 { 205 {
206 delete pRefCnt; 206 delete pRefCnt;
207 delete pData; 207 delete pData;
208 pRefCnt = NULL; 208 pRefCnt = NULL;
209 pData = NULL; 209 pData = NULL;
210 } 210 }
211 } 211 }
212 } 212 }
213 213
214 mutable int32_t *pRefCnt; 214 mutable int32_t *pRefCnt;
215 mutable T *pData; 215 mutable T *pData;
216 }; 216 };
217 217
218 template< typename Tb, typename Ta > SPtr<Tb> SPtrCast( SPtr<Ta> src ) 218 template< typename Tb, typename Ta > SPtr<Tb> SPtrCast( SPtr<Ta> src )
219 { 219 {
220 SPtr<Tb> ret; 220 SPtr<Tb> ret;
221 ret.pRefCnt = src.pRefCnt; 221 ret.pRefCnt = src.pRefCnt;
222 ret.pData = dynamic_cast<Tb *>(src.pData); 222 ret.pData = dynamic_cast<Tb *>(src.pData);
223 if( ret.pRefCnt ) 223 if( ret.pRefCnt )
224 (*(ret.pRefCnt)) += 1; 224 (*(ret.pRefCnt)) += 1;
225 return ret; 225 return ret;
226 } 226 }
227} 227}
228 228
229#endif 229#endif
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