summaryrefslogtreecommitdiffstats
path: root/src/H5ACdbg.c
blob: 37d9ca8dcdc88697a901b18e1d871c00d98351b4 (plain)
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
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
 * 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:             H5ACdbg.c
 *
 * Purpose:             Functions for debugging the metadata cache
 *
 *-------------------------------------------------------------------------
 */

/****************/
/* Module Setup */
/****************/
#include "H5ACmodule.h" /* This source code file is part of the H5AC module */
#define H5F_FRIEND      /* Suppress error about including H5Fpkg            */

/***********/
/* Headers */
/***********/
#include "H5private.h"  /* Generic Functions                    */
#include "H5ACpkg.h"    /* Metadata cache                       */
#include "H5Eprivate.h" /* Error handling                       */
#include "H5Fpkg.h"     /* Files				*/

/****************/
/* Local Macros */
/****************/

/******************/
/* Local Typedefs */
/******************/

/********************/
/* Package Typedefs */
/********************/

/********************/
/* Local Prototypes */
/********************/

/*********************/
/* Package Variables */
/*********************/

/*****************************/
/* Library Private Variables */
/*****************************/

/*******************/
/* Local Variables */
/*******************/

/*-------------------------------------------------------------------------
 * Function:    H5AC_stats
 *
 * Purpose:     Prints statistics about the cache.
 *
 * Return:      Non-negative on success/Negative on failure
 *
 *-------------------------------------------------------------------------
 */
herr_t
H5AC_stats(const H5F_t *f)
{
    FUNC_ENTER_NOAPI_NOINIT_NOERR

    /* Sanity checks */
    assert(f);
    assert(f->shared);
    assert(f->shared->cache);

    /* at present, this can't fail */
    (void)H5C_stats(f->shared->cache, H5F_OPEN_NAME(f), false);

    FUNC_LEAVE_NOAPI(SUCCEED)
} /* H5AC_stats() */

#ifndef NDEBUG

/*-------------------------------------------------------------------------
 * Function:    H5AC_dump_cache
 *
 * Purpose:     Dumps a summary of the contents of the metadata cache
 *              to stdout.
 *
 * Return:      Non-negative on success/Negative on failure
 *
 *-------------------------------------------------------------------------
 */
herr_t
H5AC_dump_cache(const H5F_t *f)
{
    herr_t ret_value = SUCCEED; /* Return value */

    FUNC_ENTER_NOAPI(FAIL)

    /* Sanity checks */
    assert(f);
    assert(f->shared);
    assert(f->shared->cache);

    if (H5C_dump_cache(f->shared->cache, H5F_OPEN_NAME(f)) < 0)
        HGOTO_ERROR(H5E_CACHE, H5E_SYSTEM, FAIL, "H5C_dump_cache() failed.");

done:
    FUNC_LEAVE_NOAPI(ret_value)
} /* H5AC_dump_cache() */
#endif /* NDEBUG */

/*-------------------------------------------------------------------------
 *
 * Function:    H5AC_get_entry_ptr_from_addr()
 *
 * Purpose:     Debugging function that attempts to look up an entry in the
 *              cache by its file address, and if found, returns a pointer
 *              to the entry in *entry_ptr_ptr.  If the entry is not in the
 *              cache, *entry_ptr_ptr is set to NULL.
 *
 *              WARNING: This call should be used only in debugging
 *                       routines, and it should be avoided when
 *                       possible.
 *
 *                       Further, if we ever multi-thread the cache,
 *                       this routine will have to be either discarded
 *                       or heavily re-worked.
 *
 *                       Finally, keep in mind that the entry whose
 *                       pointer is obtained in this fashion may not
 *                       be in a stable state.
 *
 *              Note that this function is only defined if NDEBUG
 *              is not defined.
 *
 *              As heavy use of this function is almost certainly a
 *              bad idea, the metadata cache tracks the number of
 *              successful calls to this function, and (if
 *              H5C_DO_SANITY_CHECKS is defined) displays any
 *              non-zero count on cache shutdown.
 *
 *              This function is just a wrapper that calls the H5C
 *              version of the function.
 *
 * Return:      FAIL if error is detected, SUCCEED otherwise.
 *
 *-------------------------------------------------------------------------
 */
#ifndef NDEBUG
herr_t
H5AC_get_entry_ptr_from_addr(const H5F_t *f, haddr_t addr, void **entry_ptr_ptr)
{
    H5C_t *cache_ptr;           /* Ptr to cache */
    herr_t ret_value = SUCCEED; /* Return value */

    FUNC_ENTER_NOAPI(FAIL)

    /* Sanity checks */
    assert(f);
    assert(f->shared);
    cache_ptr = f->shared->cache;

    if (H5C_get_entry_ptr_from_addr(cache_ptr, addr, entry_ptr_ptr) < 0)
        HGOTO_ERROR(H5E_CACHE, H5E_SYSTEM, FAIL, "H5C_get_entry_ptr_from_addr() failed");

done:
    FUNC_LEAVE_NOAPI(ret_value)
} /* H5AC_get_entry_ptr_from_addr() */
#endif /* NDEBUG */

/*-------------------------------------------------------------------------
 * Function:    H5AC_flush_dependency_exists()
 *
 * Purpose:     Test to see if a flush dependency relationship exists
 *              between the supplied parent and child.  Both parties
 *              are indicated by addresses so as to avoid the necessity
 *              of protect / unprotect calls prior to this call.
 *
 *              If either the parent or the child is not in the metadata
 *              cache, the function sets *fd_exists_ptr to false.
 *
 *              If both are in the cache, the child's list of parents is
 *              searched for the proposed parent.  If the proposed parent
 *              is found in the child's parent list, the function sets
 *              *fd_exists_ptr to true.  In all other non-error cases,
 *              the function sets *fd_exists_ptr false.
 *
 * Return:      SUCCEED on success/FAIL on failure.  Note that
 *              *fd_exists_ptr is undefined on failure.
 *
 *-------------------------------------------------------------------------
 */
#ifndef NDEBUG
herr_t
H5AC_flush_dependency_exists(H5F_t *f, haddr_t parent_addr, haddr_t child_addr, bool *fd_exists_ptr)
{
    H5C_t *cache_ptr;        /* Ptr to cache */
    herr_t ret_value = FAIL; /* Return value */

    FUNC_ENTER_NOAPI_NOINIT_NOERR

    /* Sanity checks */
    assert(f);
    assert(f->shared);
    cache_ptr = f->shared->cache;

    ret_value = H5C_flush_dependency_exists(cache_ptr, parent_addr, child_addr, fd_exists_ptr);

    FUNC_LEAVE_NOAPI(ret_value)
} /* H5AC_flush_dependency_exists() */
#endif /* NDEBUG */

/*-------------------------------------------------------------------------
 *
 * Function:    H5AC_verify_entry_type()
 *
 * Purpose:     Debugging function that attempts to look up an entry in the
 *              cache by its file address, and if found, test to see if its
 *              type field contains the expected value.
 *
 *              If the specified entry is in cache, *in_cache_ptr is set
 *              to true, and *type_ok_ptr is set to true or false depending
 *		on whether the entries type field matches the
 *		expected_type parameter
 *
 *              If the target entry is not in cache, *in_cache_ptr is
 *              set to false, and *type_ok_ptr is undefined.
 *
 *              Note that this function is only defined if NDEBUG
 *              is not defined.
 *
 *              This function is just a wrapper that calls the H5C
 *              version of the function.
 *
 * Return:      FAIL if error is detected, SUCCEED otherwise.
 *
 *-------------------------------------------------------------------------
 */
#ifndef NDEBUG
herr_t
H5AC_verify_entry_type(const H5F_t *f, haddr_t addr, const H5AC_class_t *expected_type, bool *in_cache_ptr,
                       bool *type_ok_ptr)
{
    H5C_t *cache_ptr;
    herr_t ret_value = SUCCEED; /* Return value */

    FUNC_ENTER_NOAPI(FAIL)

    /* Sanity checks */
    assert(f);
    assert(f->shared);
    cache_ptr = f->shared->cache;

    if (H5C_verify_entry_type(cache_ptr, addr, expected_type, in_cache_ptr, type_ok_ptr) < 0)
        HGOTO_ERROR(H5E_CACHE, H5E_SYSTEM, FAIL, "H5C_verify_entry_type() failed");

done:
    FUNC_LEAVE_NOAPI(ret_value)
} /* H5AC_verify_entry_type() */
#endif /* NDEBUG */

/*-------------------------------------------------------------------------
 * Function:    H5AC_get_serialization_in_progress
 *
 * Purpose:     Return the current value of
 *              cache_ptr->serialization_in_progress.
 *
 * Return:      Current value of cache_ptr->serialization_in_progress.
 *
 *-------------------------------------------------------------------------
 */
#ifndef NDEBUG
bool
H5AC_get_serialization_in_progress(H5F_t *f)
{
    H5C_t *cache_ptr;
    bool   ret_value = false; /* Return value */

    FUNC_ENTER_NOAPI_NOINIT_NOERR

    /* Sanity check */
    assert(f);
    assert(f->shared);
    cache_ptr = f->shared->cache;

    /* Set return value */
    ret_value = H5C_get_serialization_in_progress(cache_ptr);

    FUNC_LEAVE_NOAPI(ret_value)
} /* H5AC_get_serialization_in_progress() */
#endif /* NDEBUG */

/*-------------------------------------------------------------------------
 *
 * Function:    H5AC_cache_is_clean()
 *
 * Purpose:     Debugging function that verifies that all rings in the
 *              metadata cache are clean from the outermost ring, inwards
 *              to the inner ring specified.
 *
 *              Returns true if all specified rings are clean, and false
 *              if not.  Throws an assertion failure on error.
 *
 * Return:      true if the indicated ring(s) are clean, and false otherwise.
 *
 *-------------------------------------------------------------------------
 */
#ifndef NDEBUG
bool
H5AC_cache_is_clean(const H5F_t *f, H5AC_ring_t inner_ring)
{
    H5C_t *cache_ptr;
    bool   ret_value = false; /* Return value */

    FUNC_ENTER_NOAPI_NOINIT_NOERR

    /* Sanity checks */
    assert(f);
    assert(f->shared);
    cache_ptr = f->shared->cache;

    ret_value = H5C_cache_is_clean(cache_ptr, inner_ring);

    FUNC_LEAVE_NOAPI(ret_value)
} /* H5AC_cache_is_clean() */
#endif /* NDEBUG */