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
|
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* 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: H5Ochunk.c
* Jul 13 2008
* Quincey Koziol <koziol@hdfgroup.org>
*
* Purpose: Object header chunk routines.
*
*-------------------------------------------------------------------------
*/
/****************/
/* Module Setup */
/****************/
#define H5O_PACKAGE /*suppress error about including H5Opkg */
/***********/
/* Headers */
/***********/
#include "H5private.h" /* Generic Functions */
#include "H5Eprivate.h" /* Error handling */
#include "H5Opkg.h" /* Object headers */
/****************/
/* Local Macros */
/****************/
/******************/
/* Local Typedefs */
/******************/
/********************/
/* Package Typedefs */
/********************/
/********************/
/* Local Prototypes */
/********************/
/*********************/
/* Package Variables */
/*********************/
/* Declare the free list for H5O_chunk_proxy_t's */
H5FL_DEFINE(H5O_chunk_proxy_t);
/*****************************/
/* Library Private Variables */
/*****************************/
/*******************/
/* Local Variables */
/*******************/
/*-------------------------------------------------------------------------
* Function: H5O_chunk_add
*
* Purpose: Add new chunk for object header to metadata cache
*
* Return: Success: Non-negative
* Failure: Negative
*
* Programmer: Quincey Koziol
* koziol@hdfgroup.org
* Jul 13 2008
*
*-------------------------------------------------------------------------
*/
herr_t
H5O_chunk_add(H5F_t *f, hid_t dxpl_id, H5O_t *oh, unsigned idx)
{
H5O_chunk_proxy_t *chk_proxy = NULL; /* Proxy for chunk, to mark it dirty in the cache */
herr_t ret_value = SUCCEED; /* Return value */
FUNC_ENTER_NOAPI(FAIL)
/* check args */
HDassert(f);
HDassert(oh);
HDassert(idx < oh->nchunks);
HDassert(idx > 0);
/* Allocate space for the object header data structure */
if(NULL == (chk_proxy = H5FL_CALLOC(H5O_chunk_proxy_t)))
HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, FAIL, "memory allocation failed")
/* Set the values in the chunk proxy */
chk_proxy->oh = oh;
chk_proxy->chunkno = idx;
/* Increment reference count on object header */
if(H5O_inc_rc(oh) < 0)
HGOTO_ERROR(H5E_OHDR, H5E_CANTINC, FAIL, "can't increment reference count on object header")
/* Insert the chunk proxy into the cache */
if(H5AC_insert_entry(f, dxpl_id, H5AC_OHDR_CHK, oh->chunk[idx].addr, chk_proxy, H5AC__NO_FLAGS_SET) < 0)
HGOTO_ERROR(H5E_OHDR, H5E_CANTINSERT, FAIL, "unable to cache object header chunk")
chk_proxy = NULL;
done:
if(ret_value < 0)
if(chk_proxy)
chk_proxy = H5FL_FREE(H5O_chunk_proxy_t, chk_proxy);
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5O_chunk_add() */
/*-------------------------------------------------------------------------
* Function: H5O_chunk_protect
*
* Purpose: Protect an object header chunk for modifications
*
* Return: Success: Non-negative
* Failure: Negative
*
* Programmer: Quincey Koziol
* koziol@hdfgroup.org
* Jul 17 2008
*
*-------------------------------------------------------------------------
*/
H5O_chunk_proxy_t *
H5O_chunk_protect(H5F_t *f, hid_t dxpl_id, H5O_t *oh, unsigned idx)
{
H5O_chunk_proxy_t *chk_proxy = NULL; /* Proxy for protected chunk */
H5O_chunk_proxy_t *ret_value; /* Return value */
FUNC_ENTER_NOAPI(NULL)
/* check args */
HDassert(f);
HDassert(oh);
HDassert(idx < oh->nchunks);
/* Check for protecting first chunk */
if(0 == idx) {
/* Create new "fake" chunk proxy for first chunk */
/* (since the first chunk is already handled by the H5O_t object) */
if(NULL == (chk_proxy = H5FL_CALLOC(H5O_chunk_proxy_t)))
HGOTO_ERROR(H5E_OHDR, H5E_CANTALLOC, NULL, "memory allocation failed")
/* Increment reference count on object header */
if(H5O_inc_rc(oh) < 0)
HGOTO_ERROR(H5E_OHDR, H5E_CANTINC, NULL, "can't increment reference count on object header")
/* Set chunk proxy fields */
chk_proxy->oh = oh;
chk_proxy->chunkno = idx;
} /* end if */
else {
H5O_chk_cache_ud_t chk_udata; /* User data for loading chunk */
/* Construct the user data for protecting chunk proxy */
/* (and _not_ decoding it) */
HDmemset(&chk_udata, 0, sizeof(chk_udata));
chk_udata.oh = oh;
chk_udata.chunkno = idx;
chk_udata.size = oh->chunk[idx].size;
/* Get the chunk proxy */
if(NULL == (chk_proxy = (H5O_chunk_proxy_t *)H5AC_protect(f, dxpl_id, H5AC_OHDR_CHK, oh->chunk[idx].addr, &chk_udata, H5AC_WRITE)))
HGOTO_ERROR(H5E_OHDR, H5E_CANTPROTECT, NULL, "unable to load object header chunk")
/* Sanity check */
HDassert(chk_proxy->oh == oh);
HDassert(chk_proxy->chunkno == idx);
} /* end else */
/* Set return value */
ret_value = chk_proxy;
done:
/* Cleanup on error */
if(!ret_value)
if(0 == idx && chk_proxy)
chk_proxy = H5FL_FREE(H5O_chunk_proxy_t, chk_proxy);
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5O_chunk_protect() */
/*-------------------------------------------------------------------------
* Function: H5O_chunk_unprotect
*
* Purpose: Unprotect an object header chunk after modifications
*
* Return: Success: Non-negative
* Failure: Negative
*
* Programmer: Quincey Koziol
* koziol@hdfgroup.org
* Jul 17 2008
*
*-------------------------------------------------------------------------
*/
herr_t
H5O_chunk_unprotect(H5F_t *f, hid_t dxpl_id, H5O_chunk_proxy_t *chk_proxy,
hbool_t dirtied)
{
herr_t ret_value = SUCCEED; /* Return value */
FUNC_ENTER_NOAPI(FAIL)
/* check args */
HDassert(f);
HDassert(chk_proxy);
/* Check for releasing first chunk */
if(0 == chk_proxy->chunkno) {
/* Check for dirtying the first chunk */
if(dirtied) {
/* Mark object header as dirty in cache */
if(H5AC_mark_entry_dirty(chk_proxy->oh) < 0)
HGOTO_ERROR(H5E_OHDR, H5E_CANTMARKDIRTY, FAIL, "unable to mark object header as dirty")
} /* end else/if */
/* Decrement reference count of object header */
if(H5O_dec_rc(chk_proxy->oh) < 0)
HGOTO_ERROR(H5E_OHDR, H5E_CANTDEC, FAIL, "can't decrement reference count on object header")
/* Free fake chunk proxy */
chk_proxy = H5FL_FREE(H5O_chunk_proxy_t, chk_proxy);
} /* end if */
else {
/* Release the chunk proxy from the cache, possibly marking it dirty */
if(H5AC_unprotect(f, dxpl_id, H5AC_OHDR_CHK, chk_proxy->oh->chunk[chk_proxy->chunkno].addr, chk_proxy, (dirtied ? H5AC__DIRTIED_FLAG : H5AC__NO_FLAGS_SET)) < 0)
HGOTO_ERROR(H5E_OHDR, H5E_CANTUNPROTECT, FAIL, "unable to release object header chunk")
} /* end else */
done:
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5O_chunk_unprotect() */
/*-------------------------------------------------------------------------
* Function: H5O_chunk_resize
*
* Purpose: Resize an object header chunk
*
* Return: Success: Non-negative
* Failure: Negative
*
* Programmer: Quincey Koziol
* koziol@hdfgroup.org
* May 6 2010
*
*-------------------------------------------------------------------------
*/
herr_t
H5O_chunk_resize(H5O_t *oh, H5O_chunk_proxy_t *chk_proxy)
{
herr_t ret_value = SUCCEED; /* Return value */
FUNC_ENTER_NOAPI(FAIL)
/* check args */
HDassert(oh);
HDassert(chk_proxy);
/* Check for resizing first chunk */
if(0 == chk_proxy->chunkno) {
/* Resize object header in cache */
if(H5AC_resize_entry(oh, oh->chunk[0].size) < 0)
HGOTO_ERROR(H5E_OHDR, H5E_CANTRESIZE, FAIL, "unable to resize chunk in cache")
} /* end if */
else {
/* Resize chunk in cache */
if(H5AC_resize_entry(chk_proxy, oh->chunk[chk_proxy->chunkno].size) < 0)
HGOTO_ERROR(H5E_OHDR, H5E_CANTRESIZE, FAIL, "unable to resize chunk in cache")
} /* end else */
done:
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5O_chunk_resize() */
/*-------------------------------------------------------------------------
* Function: H5O_chunk_update_idx
*
* Purpose: Update the chunk index for a chunk proxy
*
* Return: Success: Non-negative
* Failure: Negative
*
* Programmer: Quincey Koziol
* koziol@hdfgroup.org
* Jul 13 2008
*
*-------------------------------------------------------------------------
*/
herr_t
H5O_chunk_update_idx(H5F_t *f, hid_t dxpl_id, H5O_t *oh, unsigned idx)
{
H5O_chunk_proxy_t *chk_proxy; /* Proxy for chunk, to mark it dirty in the cache */
H5O_chk_cache_ud_t chk_udata; /* User data for loading chunk */
herr_t ret_value = SUCCEED; /* Return value */
FUNC_ENTER_NOAPI(FAIL)
/* check args */
HDassert(f);
HDassert(oh);
HDassert(idx < oh->nchunks);
HDassert(idx > 0);
/* Construct the user data for protecting chunk proxy */
/* (and _not_ decoding it) */
HDmemset(&chk_udata, 0, sizeof(chk_udata));
chk_udata.oh = oh;
chk_udata.chunkno = idx;
chk_udata.size = oh->chunk[idx].size;
/* Get the chunk proxy */
if(NULL == (chk_proxy = (H5O_chunk_proxy_t *)H5AC_protect(f, dxpl_id, H5AC_OHDR_CHK, oh->chunk[idx].addr, &chk_udata, H5AC_WRITE)))
HGOTO_ERROR(H5E_OHDR, H5E_CANTPROTECT, FAIL, "unable to load object header chunk")
/* Update index for chunk proxy in cache */
chk_proxy->chunkno = idx;
/* Release the chunk proxy from the cache, marking it deleted */
if(H5AC_unprotect(f, dxpl_id, H5AC_OHDR_CHK, oh->chunk[idx].addr, chk_proxy, H5AC__DIRTIED_FLAG) < 0)
HGOTO_ERROR(H5E_OHDR, H5E_CANTUNPROTECT, FAIL, "unable to release object header chunk")
done:
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5O_chunk_update_idx() */
/*-------------------------------------------------------------------------
* Function: H5O_chunk_delete
*
* Purpose: Notify metadata cache that a chunk has been deleted
*
* Return: Success: Non-negative
* Failure: Negative
*
* Programmer: Quincey Koziol
* koziol@hdfgroup.org
* Jul 13 2008
*
*-------------------------------------------------------------------------
*/
herr_t
H5O_chunk_delete(H5F_t *f, hid_t dxpl_id, H5O_t *oh, unsigned idx)
{
H5O_chunk_proxy_t *chk_proxy; /* Proxy for chunk, to mark it dirty in the cache */
H5O_chk_cache_ud_t chk_udata; /* User data for loading chunk */
herr_t ret_value = SUCCEED; /* Return value */
FUNC_ENTER_NOAPI(FAIL)
/* check args */
HDassert(f);
HDassert(oh);
HDassert(idx < oh->nchunks);
HDassert(idx > 0);
/* Construct the user data for protecting chunk proxy */
/* (and _not_ decoding it) */
HDmemset(&chk_udata, 0, sizeof(chk_udata));
chk_udata.oh = oh;
chk_udata.chunkno = idx;
chk_udata.size = oh->chunk[idx].size;
/* Get the chunk proxy */
if(NULL == (chk_proxy = (H5O_chunk_proxy_t *)H5AC_protect(f, dxpl_id, H5AC_OHDR_CHK, oh->chunk[idx].addr, &chk_udata, H5AC_WRITE)))
HGOTO_ERROR(H5E_OHDR, H5E_CANTPROTECT, FAIL, "unable to load object header chunk")
/* Sanity check */
HDassert(chk_proxy->oh == oh);
HDassert(chk_proxy->chunkno == idx);
/* Release the chunk proxy from the cache, marking it deleted */
if(H5AC_unprotect(f, dxpl_id, H5AC_OHDR_CHK, oh->chunk[idx].addr, chk_proxy, (H5AC__DIRTIED_FLAG | H5AC__DELETED_FLAG | H5AC__FREE_FILE_SPACE_FLAG)) < 0)
HGOTO_ERROR(H5E_OHDR, H5E_CANTUNPROTECT, FAIL, "unable to release object header chunk")
done:
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5O_chunk_delete() */
|
