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
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
|
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* Copyright by The HDF Group. *
* Copyright by the Board of Trustees of the University of Illinois. *
* All rights reserved. *
* *
* This file is part of HDF5. The full HDF5 copyright notice, including *
* terms governing use, modification, and redistribution, is contained in *
* the files COPYING and Copyright.html. COPYING can be found at the root *
* of the source code distribution tree; Copyright.html can be found at the *
* root level of an installed copy of the electronic HDF5 document set and *
* is linked from the top-level documents page. It can also be found at *
* http://hdfgroup.org/HDF5/doc/Copyright.html. If you do not have *
* access to either file, you may request a copy from help@hdfgroup.org. *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/*-------------------------------------------------------------------------
*
* Created: H5HLint.c
* Oct 12 2008
* Quincey Koziol <koziol@hdfgroup.org>
*
* Purpose: Local heap internal routines.
*
*-------------------------------------------------------------------------
*/
/****************/
/* Module Setup */
/****************/
#define H5HL_PACKAGE /* Suppress error about including H5HLpkg */
/***********/
/* Headers */
/***********/
#include "H5private.h" /* Generic Functions */
#include "H5Eprivate.h" /* Error handling */
#include "H5HLpkg.h" /* Local Heaps */
/****************/
/* Local Macros */
/****************/
/******************/
/* Local Typedefs */
/******************/
/********************/
/* Package Typedefs */
/********************/
/********************/
/* Local Prototypes */
/********************/
/*********************/
/* Package Variables */
/*********************/
/*****************************/
/* Library Private Variables */
/*****************************/
/*******************/
/* Local Variables */
/*******************/
/* Declare a free list to manage the H5HL_t struct */
H5FL_DEFINE_STATIC(H5HL_t);
/* Declare a free list to manage the H5HL_dblk_t struct */
H5FL_DEFINE_STATIC(H5HL_dblk_t);
/* Declare a free list to manage the H5HL_prfx_t struct */
H5FL_DEFINE_STATIC(H5HL_prfx_t);
/*-------------------------------------------------------------------------
* Function: H5HL_new
*
* Purpose: Create a new local heap object
*
* Return: Success: non-NULL pointer to new local heap
* Failure: NULL
*
* Programmer: Quincey Koziol
* koziol@hdfgroup.org
* Jan 5 2010
*
*-------------------------------------------------------------------------
*/
H5HL_t *
H5HL_new(size_t sizeof_size, size_t sizeof_addr, size_t prfx_size)
{
H5HL_t *heap = NULL; /* New local heap */
H5HL_t *ret_value; /* Return value */
FUNC_ENTER_NOAPI(H5HL_new, NULL)
/* check arguments */
HDassert(sizeof_size > 0);
HDassert(sizeof_addr > 0);
HDassert(prfx_size > 0);
/* Allocate new local heap structure */
if(NULL == (heap = H5FL_CALLOC(H5HL_t)))
HGOTO_ERROR(H5E_HEAP, H5E_CANTALLOC, NULL, "memory allocation failed")
/* Initialize non-zero fields */
heap->sizeof_size = sizeof_size;
heap->sizeof_addr = sizeof_addr;
heap->prfx_size = prfx_size;
/* Set the return value */
ret_value = heap;
done:
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5HL_new() */
/*-------------------------------------------------------------------------
* Function: H5HL_inc_rc
*
* Purpose: Increment ref. count on heap
*
* Return: Success: Non-negative
* Failure: Negative
*
* Programmer: Quincey Koziol
* koziol@hdfgroup.org
* Oct 12 2008
*
*-------------------------------------------------------------------------
*/
static herr_t
H5HL_inc_rc(H5HL_t *heap)
{
FUNC_ENTER_NOAPI_NOINIT_NOFUNC(H5HL_inc_rc)
/* check arguments */
HDassert(heap);
/* Increment heap's ref. count */
heap->rc++;
FUNC_LEAVE_NOAPI(SUCCEED)
} /* end H5HL_inc_rc() */
/*-------------------------------------------------------------------------
* Function: H5HL_dec_rc
*
* Purpose: Decrement ref. count on heap
*
* Return: Success: Non-negative
* Failure: Negative
*
* Programmer: Quincey Koziol
* koziol@hdfgroup.org
* Oct 12 2008
*
*-------------------------------------------------------------------------
*/
static herr_t
H5HL_dec_rc(H5HL_t *heap)
{
FUNC_ENTER_NOAPI_NOINIT_NOFUNC(H5HL_dec_rc)
/* check arguments */
HDassert(heap);
/* Decrement heap's ref. count */
heap->rc--;
/* Check if we should destroy the heap */
if(heap->rc == 0)
H5HL_dest(heap);
FUNC_LEAVE_NOAPI(SUCCEED)
} /* end H5HL_dec_rc() */
/*-------------------------------------------------------------------------
* Function: H5HL_dest
*
* Purpose: Destroys a heap in memory.
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Quincey Koziol
* koziol@ncsa.uiuc.edu
* Jan 15 2003
*
*-------------------------------------------------------------------------
*/
herr_t
H5HL_dest(H5HL_t *heap)
{
FUNC_ENTER_NOAPI_NOFUNC(H5HL_dest)
/* check arguments */
HDassert(heap);
/* Verify that node is unused */
HDassert(heap->prots == 0);
HDassert(heap->rc == 0);
HDassert(heap->prfx == NULL);
HDassert(heap->dblk == NULL);
if(heap->dblk_image)
heap->dblk_image = H5FL_BLK_FREE(lheap_chunk, heap->dblk_image);
while(heap->freelist) {
H5HL_free_t *fl;
fl = heap->freelist;
heap->freelist = fl->next;
fl = H5FL_FREE(H5HL_free_t, fl);
} /* end while */
heap = H5FL_FREE(H5HL_t, heap);
FUNC_LEAVE_NOAPI(SUCCEED)
} /* end H5HL_dest() */
/*-------------------------------------------------------------------------
* Function: H5HL_prfx_new
*
* Purpose: Create a new local heap prefix object
*
* Return: Success: non-NULL pointer to new local heap prefix
* Failure: NULL
*
* Programmer: Quincey Koziol
* koziol@hdfgroup.org
* Oct 12 2008
*
*-------------------------------------------------------------------------
*/
H5HL_prfx_t *
H5HL_prfx_new(H5HL_t *heap)
{
H5HL_prfx_t *prfx = NULL; /* New local heap prefix */
H5HL_prfx_t *ret_value; /* Return value */
FUNC_ENTER_NOAPI(H5HL_prfx_new, NULL)
/* check arguments */
HDassert(heap);
/* Allocate new local heap prefix */
if(NULL == (prfx = H5FL_CALLOC(H5HL_prfx_t)))
HGOTO_ERROR(H5E_HEAP, H5E_CANTALLOC, NULL, "memory allocation failed")
/* Increment ref. count on heap data structure */
if(H5HL_inc_rc(heap) < 0)
HGOTO_ERROR(H5E_HEAP, H5E_CANTINC, NULL, "can't increment heap ref. count")
/* Link the heap & the prefix */
prfx->heap = heap;
heap->prfx = prfx;
/* Set the return value */
ret_value = prfx;
done:
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5HL_prfx_new() */
/*-------------------------------------------------------------------------
* Function: H5HL_prfx_dest
*
* Purpose: Destroy a local heap prefix object
*
* Return: Success: Non-negative
* Failure: Negative
*
* Programmer: Quincey Koziol
* koziol@hdfgroup.org
* Oct 12 2008
*
*-------------------------------------------------------------------------
*/
herr_t
H5HL_prfx_dest(H5HL_prfx_t *prfx)
{
herr_t ret_value = SUCCEED; /* Return value */
FUNC_ENTER_NOAPI(H5HL_prfx_dest, FAIL)
/* check arguments */
HDassert(prfx);
/* Check if prefix was initialized */
if(prfx->heap) {
/* Unlink prefix from heap */
prfx->heap->prfx = NULL;
/* Decrement ref. count on heap data structure */
if(H5HL_dec_rc(prfx->heap) < 0)
HGOTO_ERROR(H5E_HEAP, H5E_CANTDEC, FAIL, "can't decrement heap ref. count")
/* Unlink heap from prefix */
prfx->heap = NULL;
} /* end if */
/* Free local heap prefix */
prfx = H5FL_FREE(H5HL_prfx_t, prfx);
done:
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5HL_prfx_dest() */
/*-------------------------------------------------------------------------
* Function: H5HL_dblk_new
*
* Purpose: Create a new local heap data block object
*
* Return: Success: non-NULL pointer to new local heap data block
* Failure: NULL
*
* Programmer: Quincey Koziol
* koziol@hdfgroup.org
* Oct 12 2008
*
*-------------------------------------------------------------------------
*/
H5HL_dblk_t *
H5HL_dblk_new(H5HL_t *heap)
{
H5HL_dblk_t *dblk = NULL; /* New local heap data block */
H5HL_dblk_t *ret_value; /* Return value */
FUNC_ENTER_NOAPI(H5HL_dblk_new, NULL)
/* check arguments */
HDassert(heap);
/* Allocate new local heap data block */
if(NULL == (dblk = H5FL_CALLOC(H5HL_dblk_t)))
HGOTO_ERROR(H5E_HEAP, H5E_CANTALLOC, NULL, "memory allocation failed")
/* Increment ref. count on heap data structure */
if(H5HL_inc_rc(heap) < 0)
HGOTO_ERROR(H5E_HEAP, H5E_CANTINC, NULL, "can't increment heap ref. count")
/* Link the heap & the data block */
dblk->heap = heap;
heap->dblk = dblk;
/* Set the return value */
ret_value = dblk;
done:
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5HL_dblk_new() */
/*-------------------------------------------------------------------------
* Function: H5HL_dblk_dest
*
* Purpose: Destroy a local heap data block object
*
* Return: Success: Non-negative
* Failure: Negative
*
* Programmer: Quincey Koziol
* koziol@hdfgroup.org
* Oct 12 2008
*
*-------------------------------------------------------------------------
*/
herr_t
H5HL_dblk_dest(H5HL_dblk_t *dblk)
{
herr_t ret_value = SUCCEED; /* Return value */
FUNC_ENTER_NOAPI(H5HL_dblk_dest, FAIL)
/* check arguments */
HDassert(dblk);
/* Check if data block was initialized */
if(dblk->heap) {
/* Unlink data block from heap */
dblk->heap->dblk = NULL;
/* Unpin the local heap prefix */
if(H5AC_unpin_entry(dblk->heap->prfx) < 0)
HGOTO_ERROR(H5E_HEAP, H5E_CANTUNPIN, FAIL, "can't unpin local heap prefix")
/* Decrement ref. count on heap data structure */
if(H5HL_dec_rc(dblk->heap) < 0)
HGOTO_ERROR(H5E_HEAP, H5E_CANTDEC, FAIL, "can't decrement heap ref. count")
/* Unlink heap from data block */
dblk->heap = NULL;
} /* end if */
/* Free local heap data block */
dblk = H5FL_FREE(H5HL_dblk_t, dblk);
done:
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5HL_dblk_dest() */
|
