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
|
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* Copyright by The HDF Group. *
* 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 COPYING file, which can be found at the root of the source code *
* distribution tree, or in https://www.hdfgroup.org/licenses. *
* If you do not have access to either file, you may request a copy from *
* help@hdfgroup.org. *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/*-------------------------------------------------------------------------
*
* Created: H5Fio.c
* Jan 10 2008
* Quincey Koziol
*
* Purpose: File I/O routines.
*
*-------------------------------------------------------------------------
*/
/****************/
/* Module Setup */
/****************/
#include "H5Fmodule.h" /* This source code file is part of the H5F module */
/***********/
/* Headers */
/***********/
#include "H5private.h" /* Generic Functions */
#include "H5Eprivate.h" /* Error handling */
#include "H5Fpkg.h" /* File access */
#include "H5FDprivate.h" /* File drivers */
#include "H5Iprivate.h" /* IDs */
#include "H5PBprivate.h" /* Page Buffer */
/****************/
/* Local Macros */
/****************/
/******************/
/* Local Typedefs */
/******************/
/********************/
/* Package Typedefs */
/********************/
/********************/
/* Local Prototypes */
/********************/
/*********************/
/* Package Variables */
/*********************/
/*****************************/
/* Library Private Variables */
/*****************************/
/*******************/
/* Local Variables */
/*******************/
/*-------------------------------------------------------------------------
* Function: H5F_shared_block_read
*
* Purpose: Reads some data from a file/server/etc into a buffer.
* The data is contiguous. The address is relative to the base
* address for the file.
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Robb Matzke
* Jul 10 1997
*
*-------------------------------------------------------------------------
*/
herr_t
H5F_shared_block_read(H5F_shared_t *f_sh, H5FD_mem_t type, haddr_t addr, size_t size, void *buf /*out*/)
{
H5FD_mem_t map_type; /* Mapped memory type */
herr_t ret_value = SUCCEED; /* Return value */
FUNC_ENTER_NOAPI(FAIL)
/* Sanity checks */
HDassert(f_sh);
HDassert(buf);
HDassert(H5F_addr_defined(addr));
/* Check for attempting I/O on 'temporary' file address */
if (H5F_addr_le(f_sh->tmp_addr, (addr + size)))
HGOTO_ERROR(H5E_IO, H5E_BADRANGE, FAIL, "attempting I/O in temporary file space")
/* Treat global heap as raw data */
map_type = (type == H5FD_MEM_GHEAP) ? H5FD_MEM_DRAW : type;
/* Pass through page buffer layer */
if (H5PB_read(f_sh, map_type, addr, size, buf) < 0)
HGOTO_ERROR(H5E_IO, H5E_READERROR, FAIL, "read through page buffer failed")
done:
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5F_shared_block_read() */
/*-------------------------------------------------------------------------
* Function: H5F_block_read
*
* Purpose: Reads some data from a file/server/etc into a buffer.
* The data is contiguous. The address is relative to the base
* address for the file.
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Robb Matzke
* Jul 10 1997
*
*-------------------------------------------------------------------------
*/
herr_t
H5F_block_read(H5F_t *f, H5FD_mem_t type, haddr_t addr, size_t size, void *buf /*out*/)
{
H5FD_mem_t map_type; /* Mapped memory type */
herr_t ret_value = SUCCEED; /* Return value */
FUNC_ENTER_NOAPI(FAIL)
/* Sanity checks */
HDassert(f);
HDassert(f->shared);
HDassert(buf);
HDassert(H5F_addr_defined(addr));
/* Check for attempting I/O on 'temporary' file address */
if (H5F_addr_le(f->shared->tmp_addr, (addr + size)))
HGOTO_ERROR(H5E_IO, H5E_BADRANGE, FAIL, "attempting I/O in temporary file space")
/* Treat global heap as raw data */
map_type = (type == H5FD_MEM_GHEAP) ? H5FD_MEM_DRAW : type;
/* Pass through page buffer layer */
if (H5PB_read(f->shared, map_type, addr, size, buf) < 0)
HGOTO_ERROR(H5E_IO, H5E_READERROR, FAIL, "read through page buffer failed")
done:
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5F_block_read() */
/*-------------------------------------------------------------------------
* Function: H5F_shared_block_write
*
* Purpose: Writes some data from memory to a file/server/etc. The
* data is contiguous. The address is relative to the base
* address.
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Robb Matzke
* Jul 10 1997
*
*-------------------------------------------------------------------------
*/
herr_t
H5F_shared_block_write(H5F_shared_t *f_sh, H5FD_mem_t type, haddr_t addr, size_t size, const void *buf)
{
H5FD_mem_t map_type; /* Mapped memory type */
herr_t ret_value = SUCCEED; /* Return value */
FUNC_ENTER_NOAPI(FAIL)
/* Sanity checks */
HDassert(f_sh);
HDassert(H5F_SHARED_INTENT(f_sh) & H5F_ACC_RDWR);
HDassert(buf);
HDassert(H5F_addr_defined(addr));
/* Check for attempting I/O on 'temporary' file address */
if (H5F_addr_le(f_sh->tmp_addr, (addr + size)))
HGOTO_ERROR(H5E_IO, H5E_BADRANGE, FAIL, "attempting I/O in temporary file space")
/* Treat global heap as raw data */
map_type = (type == H5FD_MEM_GHEAP) ? H5FD_MEM_DRAW : type;
/* Pass through page buffer layer */
if (H5PB_write(f_sh, map_type, addr, size, buf) < 0)
HGOTO_ERROR(H5E_IO, H5E_WRITEERROR, FAIL, "write through page buffer failed")
done:
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5F_shared_block_write() */
/*-------------------------------------------------------------------------
* Function: H5F_block_write
*
* Purpose: Writes some data from memory to a file/server/etc. The
* data is contiguous. The address is relative to the base
* address.
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Robb Matzke
* Jul 10 1997
*
*-------------------------------------------------------------------------
*/
herr_t
H5F_block_write(H5F_t *f, H5FD_mem_t type, haddr_t addr, size_t size, const void *buf)
{
H5FD_mem_t map_type; /* Mapped memory type */
herr_t ret_value = SUCCEED; /* Return value */
FUNC_ENTER_NOAPI(FAIL)
/* Sanity checks */
HDassert(f);
HDassert(f->shared);
HDassert(H5F_INTENT(f) & H5F_ACC_RDWR);
HDassert(buf);
HDassert(H5F_addr_defined(addr));
/* Check for attempting I/O on 'temporary' file address */
if (H5F_addr_le(f->shared->tmp_addr, (addr + size)))
HGOTO_ERROR(H5E_IO, H5E_BADRANGE, FAIL, "attempting I/O in temporary file space")
/* Treat global heap as raw data */
map_type = (type == H5FD_MEM_GHEAP) ? H5FD_MEM_DRAW : type;
/* Pass through page buffer layer */
if (H5PB_write(f->shared, map_type, addr, size, buf) < 0)
HGOTO_ERROR(H5E_IO, H5E_WRITEERROR, FAIL, "write through page buffer failed")
done:
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5F_block_write() */
/*-------------------------------------------------------------------------
* Function: H5F_flush_tagged_metadata
*
* Purpose: Flushes metadata with specified tag in the metadata cache
* to disk.
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Mike McGreevy
* September 9, 2010
*
*-------------------------------------------------------------------------
*/
herr_t
H5F_flush_tagged_metadata(H5F_t *f, haddr_t tag)
{
herr_t ret_value = SUCCEED;
FUNC_ENTER_NOAPI(FAIL)
/* Use tag to search for and flush associated metadata */
if (H5AC_flush_tagged_metadata(f, tag) < 0)
HGOTO_ERROR(H5E_CACHE, H5E_CANTFLUSH, FAIL, "unable to flush tagged metadata")
/* Flush and reset the accumulator */
if (H5F__accum_reset(f->shared, TRUE) < 0)
HGOTO_ERROR(H5E_IO, H5E_CANTRESET, FAIL, "can't reset accumulator")
/* Flush file buffers to disk. */
if (H5FD_flush(f->shared->lf, FALSE) < 0)
HGOTO_ERROR(H5E_IO, H5E_WRITEERROR, FAIL, "low level flush failed")
done:
FUNC_LEAVE_NOAPI(ret_value);
} /* end H5F_flush_tagged_metadata */
/*-------------------------------------------------------------------------
* Function: H5F_evict_tagged_metadata
*
* Purpose: Evicts metadata from the cache with specified tag.
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Mike McGreevy
* September 9, 2010
*
*-------------------------------------------------------------------------
*/
herr_t
H5F_evict_tagged_metadata(H5F_t *f, haddr_t tag)
{
herr_t ret_value = SUCCEED;
FUNC_ENTER_NOAPI(FAIL)
/* Evict the object's metadata */
if (H5AC_evict_tagged_metadata(f, tag, TRUE) < 0)
HGOTO_ERROR(H5E_CACHE, H5E_CANTEXPUNGE, FAIL, "unable to evict tagged metadata")
done:
FUNC_LEAVE_NOAPI(ret_value);
} /* end H5F_evict_tagged_metadata */
/*-------------------------------------------------------------------------
* Function: H5F__evict_cache_entries
*
* Purpose: To evict all cache entries except the pinned superblock entry
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Vailin Choi
* Dec 2013
*
*-------------------------------------------------------------------------
*/
herr_t
H5F__evict_cache_entries(H5F_t *f)
{
herr_t ret_value = SUCCEED;
FUNC_ENTER_PACKAGE
HDassert(f);
HDassert(f->shared);
/* Evict all except pinned entries in the cache */
if (H5AC_evict(f) < 0)
HGOTO_ERROR(H5E_CACHE, H5E_CANTEXPUNGE, FAIL, "unable to evict all except pinned entries")
#ifndef NDEBUG
{
unsigned status = 0;
uint32_t cur_num_entries;
/* Retrieve status of the superblock */
if (H5AC_get_entry_status(f, (haddr_t)0, &status) < 0)
HGOTO_ERROR(H5E_HEAP, H5E_CANTGET, FAIL, "unable to get entry status")
/* Verify status of the superblock entry in the cache */
if (!(status & H5AC_ES__IN_CACHE) || !(status & H5AC_ES__IS_PINNED))
HGOTO_ERROR(H5E_HEAP, H5E_CANTGET, FAIL, "unable to get entry status")
/* Get the number of cache entries */
if (H5AC_get_cache_size(f->shared->cache, NULL, NULL, NULL, &cur_num_entries) < 0)
HGOTO_ERROR(H5E_CACHE, H5E_SYSTEM, FAIL, "H5AC_get_cache_size() failed.")
/* Should be the only one left in the cache (the superblock) */
if (cur_num_entries != 1)
HGOTO_ERROR(H5E_CACHE, H5E_SYSTEM, FAIL, "number of cache entries is not correct")
}
#endif /* NDEBUG */
done:
FUNC_LEAVE_NOAPI(ret_value);
} /* end H5F__evict_cache_entries() */
/*-------------------------------------------------------------------------
* Function: H5F_get_checksums
*
* Purpose: Decode checksum stored in the buffer
* Calculate checksum for the data in the buffer
*
* Note: Assumes that the checksum is the last data in the buffer
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Vailin Choi
* Sept 2013
*
*-------------------------------------------------------------------------
*/
herr_t
H5F_get_checksums(const uint8_t *buf, size_t buf_size, uint32_t *s_chksum /*out*/, uint32_t *c_chksum /*out*/)
{
FUNC_ENTER_NOAPI_NOINIT_NOERR
/* Check arguments */
HDassert(buf);
HDassert(buf_size);
/* Return the stored checksum */
if (s_chksum) {
const uint8_t *chk_p; /* Pointer into raw data buffer */
/* Offset to the checksum in the buffer */
chk_p = buf + buf_size - H5_SIZEOF_CHKSUM;
/* Decode the checksum stored in the buffer */
UINT32DECODE(chk_p, *s_chksum);
} /* end if */
/* Return the computed checksum for the buffer */
if (c_chksum)
*c_chksum = H5_checksum_metadata(buf, buf_size - H5_SIZEOF_CHKSUM, 0);
FUNC_LEAVE_NOAPI(SUCCEED)
} /* end H5F_get_chksums() */
|
