1 /*
2  * This file is part of gtkD.
3  *
4  * gtkD is free software; you can redistribute it and/or modify
5  * it under the terms of the GNU Lesser General Public License
6  * as published by the Free Software Foundation; either version 3
7  * of the License, or (at your option) any later version, with
8  * some exceptions, please read the COPYING file.
9  *
10  * gtkD is distributed in the hope that it will be useful,
11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13  * GNU Lesser General Public License for more details.
14  *
15  * You should have received a copy of the GNU Lesser General Public License
16  * along with gtkD; if not, write to the Free Software
17  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110, USA
18  */
19 
20 // generated automatically - do not change
21 // find conversion definition on APILookup.txt
22 // implement new conversion functionalities on the wrap.utils pakage
23 
24 
25 module glib.Memory;
26 
27 private import gtkc.glib;
28 public  import gtkc.glibtypes;
29 
30 
31 public struct Memory
32 {
33 	/**
34 	 */
35 
36 	/**
37 	 * Clears a reference to a variable.
38 	 *
39 	 * @pp must not be %NULL.
40 	 *
41 	 * If the reference is %NULL then this function does nothing.
42 	 * Otherwise, the variable is destroyed using @destroy and the
43 	 * pointer is set to %NULL.
44 	 *
45 	 * A macro is also included that allows this function to be used without
46 	 * pointer casts.
47 	 *
48 	 * Params:
49 	 *     pp = a pointer to a variable, struct member etc. holding a pointer
50 	 *     destroy = a function to which a gpointer can be passed, to destroy *@pp
51 	 *
52 	 * Since: 2.34
53 	 */
54 	public static void clearPointer(void** pp, GDestroyNotify destroy)
55 	{
56 		g_clear_pointer(pp, destroy);
57 	}
58 
59 	/**
60 	 * Frees the memory pointed to by @mem.
61 	 *
62 	 * If @mem is %NULL it simply returns, so there is no need to check @mem
63 	 * against %NULL before calling this function.
64 	 *
65 	 * Params:
66 	 *     mem = the memory to free
67 	 */
68 	public static void free(void* mem)
69 	{
70 		g_free(mem);
71 	}
72 
73 	/**
74 	 * Allocates @n_bytes bytes of memory.
75 	 * If @n_bytes is 0 it returns %NULL.
76 	 *
77 	 * Params:
78 	 *     nBytes = the number of bytes to allocate
79 	 *
80 	 * Return: a pointer to the allocated memory
81 	 */
82 	public static void* malloc(size_t nBytes)
83 	{
84 		return g_malloc(nBytes);
85 	}
86 
87 	/**
88 	 * Allocates @n_bytes bytes of memory, initialized to 0's.
89 	 * If @n_bytes is 0 it returns %NULL.
90 	 *
91 	 * Params:
92 	 *     nBytes = the number of bytes to allocate
93 	 *
94 	 * Return: a pointer to the allocated memory
95 	 */
96 	public static void* malloc0(size_t nBytes)
97 	{
98 		return g_malloc0(nBytes);
99 	}
100 
101 	/**
102 	 * This function is similar to g_malloc0(), allocating (@n_blocks * @n_block_bytes) bytes,
103 	 * but care is taken to detect possible overflow during multiplication.
104 	 *
105 	 * Params:
106 	 *     nBlocks = the number of blocks to allocate
107 	 *     nBlockBytes = the size of each block in bytes
108 	 *
109 	 * Return: a pointer to the allocated memory
110 	 *
111 	 * Since: 2.24
112 	 */
113 	public static void* malloc0N(size_t nBlocks, size_t nBlockBytes)
114 	{
115 		return g_malloc0_n(nBlocks, nBlockBytes);
116 	}
117 
118 	/**
119 	 * This function is similar to g_malloc(), allocating (@n_blocks * @n_block_bytes) bytes,
120 	 * but care is taken to detect possible overflow during multiplication.
121 	 *
122 	 * Params:
123 	 *     nBlocks = the number of blocks to allocate
124 	 *     nBlockBytes = the size of each block in bytes
125 	 *
126 	 * Return: a pointer to the allocated memory
127 	 *
128 	 * Since: 2.24
129 	 */
130 	public static void* mallocN(size_t nBlocks, size_t nBlockBytes)
131 	{
132 		return g_malloc_n(nBlocks, nBlockBytes);
133 	}
134 
135 	/**
136 	 * Checks whether the allocator used by g_malloc() is the system's
137 	 * malloc implementation. If it returns %TRUE memory allocated with
138 	 * malloc() can be used interchangeable with memory allocated using g_malloc().
139 	 * This function is useful for avoiding an extra copy of allocated memory returned
140 	 * by a non-GLib-based API.
141 	 *
142 	 * A different allocator can be set using g_mem_set_vtable().
143 	 *
144 	 * Return: if %TRUE, malloc() and g_malloc() can be mixed.
145 	 */
146 	public static bool memIsSystemMalloc()
147 	{
148 		return g_mem_is_system_malloc() != 0;
149 	}
150 
151 	/**
152 	 * Outputs a summary of memory usage.
153 	 *
154 	 * It outputs the frequency of allocations of different sizes,
155 	 * the total number of bytes which have been allocated,
156 	 * the total number of bytes which have been freed,
157 	 * and the difference between the previous two values, i.e. the number of bytes
158 	 * still in use.
159 	 *
160 	 * Note that this function will not output anything unless you have
161 	 * previously installed the #glib_mem_profiler_table with g_mem_set_vtable().
162 	 */
163 	public static void memProfile()
164 	{
165 		g_mem_profile();
166 	}
167 
168 	/**
169 	 * Sets the #GMemVTable to use for memory allocation. You can use this
170 	 * to provide custom memory allocation routines.
171 	 *
172 	 * The @vtable only needs to provide malloc(), realloc(), and free()
173 	 * functions; GLib can provide default implementations of the others.
174 	 * The malloc() and realloc() implementations should return %NULL on
175 	 * failure, GLib will handle error-checking for you. @vtable is copied,
176 	 * so need not persist after this function has been called.
177 	 *
178 	 * Note that this function must be called before using any other GLib
179 	 * functions.
180 	 *
181 	 * Params:
182 	 *     vtable = table of memory allocation routines.
183 	 */
184 	public static void memSetVtable(GMemVTable* vtable)
185 	{
186 		g_mem_set_vtable(vtable);
187 	}
188 
189 	/**
190 	 * Allocates @byte_size bytes of memory, and copies @byte_size bytes into it
191 	 * from @mem. If @mem is %NULL it returns %NULL.
192 	 *
193 	 * Params:
194 	 *     mem = the memory to copy.
195 	 *     byteSize = the number of bytes to copy.
196 	 *
197 	 * Return: a pointer to the newly-allocated copy of the memory, or %NULL if @mem
198 	 *     is %NULL.
199 	 */
200 	public static void* memdup(void* mem, uint byteSize)
201 	{
202 		return g_memdup(mem, byteSize);
203 	}
204 
205 	/**
206 	 * Reallocates the memory pointed to by @mem, so that it now has space for
207 	 * @n_bytes bytes of memory. It returns the new address of the memory, which may
208 	 * have been moved. @mem may be %NULL, in which case it's considered to
209 	 * have zero-length. @n_bytes may be 0, in which case %NULL will be returned
210 	 * and @mem will be freed unless it is %NULL.
211 	 *
212 	 * Params:
213 	 *     mem = the memory to reallocate
214 	 *     nBytes = new size of the memory in bytes
215 	 *
216 	 * Return: the new address of the allocated memory
217 	 */
218 	public static void* realloc(void* mem, size_t nBytes)
219 	{
220 		return g_realloc(mem, nBytes);
221 	}
222 
223 	/**
224 	 * This function is similar to g_realloc(), allocating (@n_blocks * @n_block_bytes) bytes,
225 	 * but care is taken to detect possible overflow during multiplication.
226 	 *
227 	 * Params:
228 	 *     mem = the memory to reallocate
229 	 *     nBlocks = the number of blocks to allocate
230 	 *     nBlockBytes = the size of each block in bytes
231 	 *
232 	 * Return: the new address of the allocated memory
233 	 *
234 	 * Since: 2.24
235 	 */
236 	public static void* reallocN(void* mem, size_t nBlocks, size_t nBlockBytes)
237 	{
238 		return g_realloc_n(mem, nBlocks, nBlockBytes);
239 	}
240 
241 	/**
242 	 * Attempts to allocate @n_bytes, and returns %NULL on failure.
243 	 * Contrast with g_malloc(), which aborts the program on failure.
244 	 *
245 	 * Params:
246 	 *     nBytes = number of bytes to allocate.
247 	 *
248 	 * Return: the allocated memory, or %NULL.
249 	 */
250 	public static void* tryMalloc(size_t nBytes)
251 	{
252 		return g_try_malloc(nBytes);
253 	}
254 
255 	/**
256 	 * Attempts to allocate @n_bytes, initialized to 0's, and returns %NULL on
257 	 * failure. Contrast with g_malloc0(), which aborts the program on failure.
258 	 *
259 	 * Params:
260 	 *     nBytes = number of bytes to allocate
261 	 *
262 	 * Return: the allocated memory, or %NULL
263 	 *
264 	 * Since: 2.8
265 	 */
266 	public static void* tryMalloc0(size_t nBytes)
267 	{
268 		return g_try_malloc0(nBytes);
269 	}
270 
271 	/**
272 	 * This function is similar to g_try_malloc0(), allocating (@n_blocks * @n_block_bytes) bytes,
273 	 * but care is taken to detect possible overflow during multiplication.
274 	 *
275 	 * Params:
276 	 *     nBlocks = the number of blocks to allocate
277 	 *     nBlockBytes = the size of each block in bytes
278 	 *
279 	 * Return: the allocated memory, or %NULL
280 	 *
281 	 * Since: 2.24
282 	 */
283 	public static void* tryMalloc0N(size_t nBlocks, size_t nBlockBytes)
284 	{
285 		return g_try_malloc0_n(nBlocks, nBlockBytes);
286 	}
287 
288 	/**
289 	 * This function is similar to g_try_malloc(), allocating (@n_blocks * @n_block_bytes) bytes,
290 	 * but care is taken to detect possible overflow during multiplication.
291 	 *
292 	 * Params:
293 	 *     nBlocks = the number of blocks to allocate
294 	 *     nBlockBytes = the size of each block in bytes
295 	 *
296 	 * Return: the allocated memory, or %NULL.
297 	 *
298 	 * Since: 2.24
299 	 */
300 	public static void* tryMallocN(size_t nBlocks, size_t nBlockBytes)
301 	{
302 		return g_try_malloc_n(nBlocks, nBlockBytes);
303 	}
304 
305 	/**
306 	 * Attempts to realloc @mem to a new size, @n_bytes, and returns %NULL
307 	 * on failure. Contrast with g_realloc(), which aborts the program
308 	 * on failure.
309 	 *
310 	 * If @mem is %NULL, behaves the same as g_try_malloc().
311 	 *
312 	 * Params:
313 	 *     mem = previously-allocated memory, or %NULL.
314 	 *     nBytes = number of bytes to allocate.
315 	 *
316 	 * Return: the allocated memory, or %NULL.
317 	 */
318 	public static void* tryRealloc(void* mem, size_t nBytes)
319 	{
320 		return g_try_realloc(mem, nBytes);
321 	}
322 
323 	/**
324 	 * This function is similar to g_try_realloc(), allocating (@n_blocks * @n_block_bytes) bytes,
325 	 * but care is taken to detect possible overflow during multiplication.
326 	 *
327 	 * Params:
328 	 *     mem = previously-allocated memory, or %NULL.
329 	 *     nBlocks = the number of blocks to allocate
330 	 *     nBlockBytes = the size of each block in bytes
331 	 *
332 	 * Return: the allocated memory, or %NULL.
333 	 *
334 	 * Since: 2.24
335 	 */
336 	public static void* tryReallocN(void* mem, size_t nBlocks, size_t nBlockBytes)
337 	{
338 		return g_try_realloc_n(mem, nBlocks, nBlockBytes);
339 	}
340 }