summaryrefslogtreecommitdiffstats
path: root/src/H5AC.c
blob: 402f5627ad1e169fd84a0a2bfb4fce49f2be80ff (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
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
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
1565
1566
1567
1568
1569
1570
1571
1572
1573
1574
1575
1576
1577
1578
1579
1580
1581
1582
1583
1584
1585
1586
1587
1588
1589
1590
1591
1592
1593
1594
1595
1596
1597
1598
1599
1600
1601
1602
1603
1604
1605
1606
1607
1608
1609
1610
1611
1612
1613
1614
1615
1616
1617
1618
1619
1620
1621
1622
1623
1624
1625
1626
1627
1628
1629
1630
1631
1632
1633
1634
1635
1636
1637
1638
1639
1640
1641
1642
1643
1644
1645
1646
1647
1648
1649
1650
1651
1652
1653
1654
1655
1656
1657
1658
1659
1660
1661
1662
1663
1664
1665
1666
1667
1668
1669
1670
1671
1672
1673
1674
1675
1676
1677
1678
1679
1680
1681
1682
1683
1684
1685
1686
1687
1688
1689
1690
1691
1692
1693
1694
1695
1696
1697
1698
1699
1700
1701
1702
1703
1704
1705
1706
1707
1708
1709
1710
1711
1712
1713
1714
1715
1716
1717
1718
1719
1720
1721
1722
1723
1724
1725
1726
1727
1728
1729
1730
1731
1732
1733
1734
1735
1736
1737
1738
1739
1740
1741
1742
1743
1744
1745
1746
1747
1748
1749
1750
1751
1752
1753
1754
1755
1756
1757
1758
1759
1760
1761
1762
1763
1764
1765
1766
1767
1768
1769
1770
1771
1772
1773
1774
1775
1776
1777
1778
1779
1780
1781
1782
1783
1784
1785
1786
1787
1788
1789
1790
1791
1792
1793
1794
1795
1796
1797
1798
1799
1800
1801
1802
1803
1804
1805
1806
1807
1808
1809
1810
1811
1812
1813
1814
1815
1816
1817
1818
1819
1820
1821
1822
1823
1824
1825
1826
1827
1828
1829
1830
1831
1832
1833
1834
1835
1836
1837
1838
1839
1840
1841
1842
1843
1844
1845
1846
1847
1848
1849
1850
1851
1852
1853
1854
1855
1856
1857
1858
1859
1860
1861
1862
1863
1864
1865
1866
1867
1868
1869
1870
1871
1872
1873
1874
1875
1876
1877
1878
1879
1880
1881
1882
1883
1884
1885
1886
1887
1888
1889
1890
1891
1892
1893
1894
1895
1896
1897
1898
1899
1900
1901
1902
1903
1904
1905
1906
1907
1908
1909
1910
1911
1912
1913
1914
1915
1916
1917
1918
1919
1920
1921
1922
1923
1924
1925
1926
1927
1928
1929
1930
1931
1932
1933
1934
1935
1936
1937
1938
1939
1940
1941
1942
1943
1944
1945
1946
1947
1948
1949
1950
1951
1952
1953
1954
1955
1956
1957
1958
1959
1960
1961
1962
1963
1964
1965
1966
1967
1968
1969
1970
1971
1972
1973
1974
1975
1976
1977
1978
1979
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027
2028
2029
2030
2031
2032
2033
2034
2035
2036
2037
2038
2039
2040
2041
2042
2043
2044
2045
2046
2047
2048
2049
2050
2051
2052
2053
2054
2055
2056
2057
2058
2059
2060
2061
2062
2063
2064
2065
2066
2067
2068
2069
2070
2071
2072
2073
2074
2075
2076
2077
2078
2079
2080
2081
2082
2083
2084
2085
2086
2087
2088
2089
2090
2091
2092
2093
2094
2095
2096
2097
2098
2099
2100
2101
2102
2103
2104
2105
2106
2107
2108
2109
2110
2111
2112
2113
2114
2115
2116
2117
2118
2119
2120
2121
2122
2123
2124
2125
2126
2127
2128
2129
2130
2131
2132
2133
2134
2135
2136
2137
2138
2139
2140
2141
2142
2143
2144
2145
2146
2147
2148
2149
2150
2151
2152
2153
2154
2155
2156
2157
2158
2159
2160
2161
2162
2163
2164
2165
2166
2167
2168
2169
2170
2171
2172
2173
2174
2175
2176
2177
2178
2179
2180
2181
2182
2183
2184
2185
2186
2187
2188
2189
2190
2191
2192
2193
2194
2195
2196
2197
2198
2199
2200
2201
2202
2203
2204
2205
2206
2207
2208
2209
2210
2211
2212
2213
2214
2215
2216
2217
2218
2219
2220
2221
2222
2223
2224
2225
2226
2227
2228
2229
2230
2231
2232
2233
2234
2235
2236
2237
2238
2239
2240
2241
2242
2243
2244
2245
2246
2247
2248
2249
2250
2251
2252
2253
2254
2255
2256
2257
2258
2259
2260
2261
2262
2263
2264
2265
2266
2267
2268
2269
2270
2271
2272
2273
2274
2275
2276
2277
2278
2279
2280
2281
2282
2283
2284
2285
2286
2287
2288
2289
2290
2291
2292
2293
2294
2295
2296
2297
2298
2299
2300
2301
2302
2303
2304
2305
2306
2307
2308
2309
2310
2311
2312
2313
2314
2315
2316
2317
2318
2319
2320
2321
2322
2323
2324
2325
2326
2327
2328
2329
2330
2331
2332
2333
2334
2335
2336
2337
2338
2339
2340
2341
2342
2343
2344
2345
2346
2347
2348
2349
2350
2351
2352
2353
2354
2355
2356
2357
2358
2359
2360
2361
2362
2363
2364
2365
2366
2367
2368
2369
2370
2371
2372
2373
2374
2375
2376
2377
2378
2379
2380
2381
2382
2383
2384
2385
2386
2387
2388
2389
2390
2391
2392
2393
2394
2395
2396
2397
2398
2399
2400
2401
2402
2403
2404
2405
2406
2407
2408
2409
2410
2411
2412
2413
2414
2415
2416
2417
2418
2419
2420
2421
2422
2423
2424
2425
2426
2427
2428
2429
2430
2431
2432
2433
2434
2435
2436
2437
2438
2439
2440
2441
2442
2443
2444
2445
2446
2447
2448
2449
2450
2451
2452
2453
2454
2455
2456
2457
2458
2459
2460
2461
2462
2463
2464
2465
2466
2467
2468
2469
2470
2471
2472
2473
2474
2475
2476
2477
2478
2479
2480
2481
2482
2483
2484
2485
2486
2487
2488
2489
2490
2491
2492
2493
2494
2495
2496
2497
2498
2499
2500
2501
2502
2503
2504
2505
2506
2507
2508
2509
2510
2511
2512
2513
2514
2515
2516
2517
2518
2519
2520
2521
2522
2523
2524
2525
2526
2527
2528
2529
2530
2531
2532
2533
2534
2535
2536
2537
2538
2539
2540
2541
2542
2543
2544
2545
2546
2547
2548
2549
2550
2551
2552
2553
2554
2555
2556
2557
2558
2559
2560
2561
2562
2563
2564
2565
2566
2567
2568
2569
2570
2571
2572
2573
2574
2575
2576
2577
2578
2579
2580
2581
2582
2583
2584
2585
2586
2587
2588
2589
2590
2591
2592
2593
2594
2595
2596
2597
2598
2599
2600
2601
2602
2603
2604
2605
2606
2607
2608
2609
2610
2611
2612
2613
2614
2615
2616
2617
2618
2619
2620
2621
2622
2623
2624
2625
2626
2627
2628
2629
2630
2631
2632
2633
2634
2635
2636
2637
2638
2639
2640
2641
2642
2643
2644
2645
2646
2647
2648
2649
2650
2651
2652
2653
2654
2655
2656
2657
2658
2659
2660
2661
2662
2663
2664
2665
2666
2667
2668
2669
2670
2671
2672
2673
2674
2675
2676
2677
2678
2679
2680
2681
2682
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
 * 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 COPYING file, which can be found at the root of the source code       *
 * distribution tree, or in https://support.hdfgroup.org/ftp/HDF5/releases.  *
 * If you do not have access to either file, you may request a copy from     *
 * help@hdfgroup.org.                                                        *
 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */

/*-------------------------------------------------------------------------
 *
 * Created:             H5AC.c
 *                      Jul  9 1997
 *                      Robb Matzke <matzke@llnl.gov>
 *
 * Purpose:             Functions in this file implement a cache for
 *                      things which exist on disk.  All "things" associated
 *                      with a particular HDF file share the same cache; each
 *                      HDF file has it's own cache.
 *
 *-------------------------------------------------------------------------
 */

/****************/
/* Module Setup */
/****************/

#include "H5ACmodule.h"         /* This source code file is part of the H5AC module */
#define H5C_FRIEND              /* Suppress error about including H5Cpkg            */
#define H5F_FRIEND              /* Suppress error about including H5Fpkg            */


/***********/
/* Headers */
/***********/
#include "H5private.h"          /* Generic Functions                        */
#include "H5ACpkg.h"            /* Metadata cache                           */
#include "H5Clog.h"             /* Cache logging                            */
#include "H5Cpkg.h"             /* Cache                                    */
#include "H5CXprivate.h"        /* API Contexts                             */
#include "H5Eprivate.h"         /* Error handling                           */
#include "H5Fpkg.h"             /* Files                                    */
#include "H5FDprivate.h"        /* File drivers                             */
#include "H5Iprivate.h"         /* IDs                                      */
#include "H5Pprivate.h"         /* Property lists                           */
#include "H5SLprivate.h"        /* Skip Lists                               */


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


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


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

static herr_t H5AC__check_if_write_permitted(const H5F_t *f,
    hbool_t *write_permitted_ptr);
static herr_t H5AC__ext_config_2_int_config(H5AC_cache_config_t *ext_conf_ptr,
    H5C_auto_size_ctl_t *int_conf_ptr);
#if H5AC_DO_TAGGING_SANITY_CHECKS
static herr_t H5AC__verify_tag(const H5AC_class_t * type);
#endif /* H5AC_DO_TAGGING_SANITY_CHECKS */


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

/* Package initialization variable */
hbool_t H5_PKG_INIT_VAR = FALSE;

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

#ifdef H5_HAVE_PARALLEL
/* Environment variable for collective API sanity checks */
hbool_t H5_coll_api_sanity_check_g = false;
#endif /* H5_HAVE_PARALLEL */


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

/* Metadata entry class list */

/* Remember to add new type ID to the H5AC_type_t enum in H5ACprivate.h when
 *      adding a new class.
 */

static const H5AC_class_t *const H5AC_class_s[] = {
    H5AC_BT,                    /* ( 0) B-tree nodes                    */
    H5AC_SNODE,                 /* ( 1) symbol table nodes              */
    H5AC_LHEAP_PRFX,            /* ( 2) local heap prefix               */
    H5AC_LHEAP_DBLK,            /* ( 3) local heap data block           */
    H5AC_GHEAP,                 /* ( 4) global heap                     */
    H5AC_OHDR,                  /* ( 5) object header                   */
    H5AC_OHDR_CHK,              /* ( 6) object header chunk             */
    H5AC_BT2_HDR,               /* ( 7) v2 B-tree header                */
    H5AC_BT2_INT,               /* ( 8) v2 B-tree internal node         */
    H5AC_BT2_LEAF,              /* ( 9) v2 B-tree leaf node             */
    H5AC_FHEAP_HDR,             /* (10) fractal heap header             */
    H5AC_FHEAP_DBLOCK,          /* (11) fractal heap direct block       */
    H5AC_FHEAP_IBLOCK,          /* (12) fractal heap indirect block     */
    H5AC_FSPACE_HDR,            /* (13) free space header               */
    H5AC_FSPACE_SINFO,          /* (14) free space sections             */
    H5AC_SOHM_TABLE,            /* (15) shared object header message master table */
    H5AC_SOHM_LIST,             /* (16) shared message index stored as a list */
    H5AC_EARRAY_HDR,            /* (17) extensible array header         */
    H5AC_EARRAY_IBLOCK,         /* (18) extensible array index block    */
    H5AC_EARRAY_SBLOCK,         /* (19) extensible array super block    */
    H5AC_EARRAY_DBLOCK,         /* (20) extensible array data block     */
    H5AC_EARRAY_DBLK_PAGE,      /* (21) extensible array data block page */
    H5AC_FARRAY_HDR,            /* (22) fixed array header              */
    H5AC_FARRAY_DBLOCK,         /* (23) fixed array data block          */
    H5AC_FARRAY_DBLK_PAGE,      /* (24) fixed array data block page     */
    H5AC_SUPERBLOCK,            /* (25) file superblock                 */
    H5AC_DRVRINFO,              /* (26) driver info block (supplements superblock) */
    H5AC_EPOCH_MARKER,          /* (27) epoch marker - always internal to cache */
    H5AC_PROXY_ENTRY,           /* (28) cache entry proxy               */
    H5AC_PREFETCHED_ENTRY       /* (29) prefetched entry - always internal to cache */
};



/*-------------------------------------------------------------------------
 * Function:    H5AC_init
 *
 * Purpose:     Initialize the interface from some other layer.
 *
 * Return:      Success:    non-negative
 *              Failure:    negative
 *
 * Programmer:  Quincey Koziol
 *              Saturday, January 18, 2003
 *
 *-------------------------------------------------------------------------
 */
herr_t
H5AC_init(void)
{
    herr_t ret_value = SUCCEED;   /* Return value */

    FUNC_ENTER_NOAPI(FAIL)
    /* FUNC_ENTER() does all the work */

done:
    FUNC_LEAVE_NOAPI(ret_value)
} /* end H5AC_init() */


/*-------------------------------------------------------------------------
 * Function     H5AC__init_package
 *
 * Purpose:     Initialize interface-specific information
 *
 * Return:      Non-negative on success/Negative on failure
 *
 * Programmer:  Quincey Koziol
 *              Thursday, July 18, 2002
 *
 *-------------------------------------------------------------------------
 */
herr_t
H5AC__init_package(void)
{
    FUNC_ENTER_PACKAGE_NOERR

#ifdef H5_HAVE_PARALLEL
    /* check whether to enable strict collective function calling
     * sanity checks using MPI barriers
     */
    {
        const char *s;  /* String for environment variables */

        s = HDgetenv("H5_COLL_API_SANITY_CHECK");
        if(s && HDisdigit(*s)) {
            long env_val = HDstrtol(s, NULL, 0);
            H5_coll_api_sanity_check_g = (0 == env_val) ? FALSE : TRUE;
        }
    }
#endif /* H5_HAVE_PARALLEL */

    FUNC_LEAVE_NOAPI(SUCCEED)
} /* end H5AC__init_package() */


/*-------------------------------------------------------------------------
 * Function:    H5AC_term_package
 *
 * Purpose:     Terminate this interface.
 *
 * Return:      Success:    Positive if anything was done that might
 *                affect other interfaces; zero otherwise.
 *              Failure:    Negative.
 *
 * Programmer:  Quincey Koziol
 *              Thursday, July 18, 2002
 *
 *-------------------------------------------------------------------------
 */
int
H5AC_term_package(void)
{
    FUNC_ENTER_NOAPI_NOINIT_NOERR

    if(H5_PKG_INIT_VAR)
        /* Reset interface initialization flag */
        H5_PKG_INIT_VAR = FALSE;

    FUNC_LEAVE_NOAPI(0)
} /* end H5AC_term_package() */


/*-------------------------------------------------------------------------
 *
 * Function:    H5AC_cache_image_pending()
 *
 * Purpose:     Debugging function that tests to see if the load of a
 *              metadata cache image load is pending (i.e. will be executed
 *              on the next protect or insert)
 *
 *              Returns TRUE if a cache image load is pending, and FALSE
 *              if not.  Throws an assertion failure on error.
 *
 * Return:      TRUE if a cache image load is pending, and FALSE otherwise.
 *
 * Programmer:  John Mainzer, 1/10/17
 *
 * Changes:     None.
 *
 *-------------------------------------------------------------------------
 */
hbool_t
H5AC_cache_image_pending(const H5F_t *f)
{
    H5C_t *cache_ptr;
    hbool_t ret_value = FALSE;          /* Return value */

    FUNC_ENTER_NOAPI_NOINIT_NOERR

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

    ret_value = H5C_cache_image_pending(cache_ptr);

    FUNC_LEAVE_NOAPI(ret_value)
} /* H5AC_cache_image_pending() */


/*-------------------------------------------------------------------------
 * Function:    H5AC_create
 *
 * Purpose:     Initialize the cache just after a file is opened.  The
 *              SIZE_HINT is the number of cache slots desired.  If you
 *              pass an invalid value then H5AC_NSLOTS is used.  You can
 *              turn off caching by using 1 for the SIZE_HINT value.
 *
 * Return:      Success:        Number of slots actually used.
 *
 *              Failure:        Negative
 *
 * Programmer:  Robb Matzke
 *              matzke@llnl.gov
 *              Jul  9 1997
 *
 *-------------------------------------------------------------------------
 */
herr_t
H5AC_create(const H5F_t *f, H5AC_cache_config_t *config_ptr, H5AC_cache_image_config_t * image_config_ptr)
{
#ifdef H5_HAVE_PARALLEL
    char      prefix[H5C__PREFIX_LEN] = "";
    H5AC_aux_t * aux_ptr = NULL;
#endif /* H5_HAVE_PARALLEL */
    struct H5C_cache_image_ctl_t int_ci_config = H5C__DEFAULT_CACHE_IMAGE_CTL;
    herr_t ret_value = SUCCEED;      /* Return value */

    FUNC_ENTER_NOAPI(FAIL)

    /* Check arguments */
    HDassert(f);
    HDassert(NULL == f->shared->cache);
    HDassert(config_ptr != NULL) ;
    HDassert(image_config_ptr != NULL) ;
    HDassert(image_config_ptr->version == H5AC__CURR_CACHE_IMAGE_CONFIG_VERSION);
    HDcompile_assert(NELMTS(H5AC_class_s) == H5AC_NTYPES);
    HDcompile_assert(H5C__MAX_NUM_TYPE_IDS == H5AC_NTYPES);

    /* Validate configurations */
    if(H5AC_validate_config(config_ptr) < 0)
        HGOTO_ERROR(H5E_CACHE, H5E_BADVALUE, FAIL, "Bad cache configuration")
    if(H5AC_validate_cache_image_config(image_config_ptr) < 0)
        HGOTO_ERROR(H5E_CACHE, H5E_BADVALUE, FAIL, "Bad cache image configuration")

#ifdef H5_HAVE_PARALLEL
    if(H5F_HAS_FEATURE(f, H5FD_FEAT_HAS_MPI)) {
        MPI_Comm    mpi_comm;
        int         mpi_rank;
        int         mpi_size;

        if(MPI_COMM_NULL == (mpi_comm = H5F_mpi_get_comm(f)))
            HGOTO_ERROR(H5E_VFL, H5E_CANTGET, FAIL, "can't get MPI communicator")

        if((mpi_rank = H5F_mpi_get_rank(f)) < 0)
            HGOTO_ERROR(H5E_VFL, H5E_CANTGET, FAIL, "can't get mpi rank")

        if((mpi_size = H5F_mpi_get_size(f)) < 0)
            HGOTO_ERROR(H5E_VFL, H5E_CANTGET, FAIL, "can't get mpi size")

        if(NULL == (aux_ptr = H5FL_CALLOC(H5AC_aux_t)))
            HGOTO_ERROR(H5E_CACHE, H5E_CANTALLOC, FAIL, "Can't allocate H5AC auxiliary structure")

        aux_ptr->magic = H5AC__H5AC_AUX_T_MAGIC;
        aux_ptr->mpi_comm = mpi_comm;
        aux_ptr->mpi_rank = mpi_rank;
        aux_ptr->mpi_size = mpi_size;
        aux_ptr->write_permitted = FALSE;
        aux_ptr->dirty_bytes_threshold = H5AC__DEFAULT_DIRTY_BYTES_THRESHOLD;
        aux_ptr->dirty_bytes = 0;
        aux_ptr->metadata_write_strategy = H5AC__DEFAULT_METADATA_WRITE_STRATEGY;
#if H5AC_DEBUG_DIRTY_BYTES_CREATION
        aux_ptr->dirty_bytes_propagations = 0;
        aux_ptr->unprotect_dirty_bytes = 0;
        aux_ptr->unprotect_dirty_bytes_updates = 0;
        aux_ptr->insert_dirty_bytes = 0;
        aux_ptr->insert_dirty_bytes_updates = 0;
        aux_ptr->move_dirty_bytes = 0;
        aux_ptr->move_dirty_bytes_updates = 0;
#endif /* H5AC_DEBUG_DIRTY_BYTES_CREATION */
        aux_ptr->d_slist_ptr = NULL;
        aux_ptr->c_slist_ptr = NULL;
        aux_ptr->candidate_slist_ptr = NULL;
        aux_ptr->write_done = NULL;
        aux_ptr->sync_point_done = NULL;
        aux_ptr->p0_image_len = 0;

        HDsprintf(prefix, "%d:", mpi_rank);

        if(mpi_rank == 0) {
            if(NULL == (aux_ptr->d_slist_ptr = H5SL_create(H5SL_TYPE_HADDR, NULL)))
                HGOTO_ERROR(H5E_CACHE, H5E_CANTCREATE, FAIL, "can't create dirtied entry list")

            if(NULL == (aux_ptr->c_slist_ptr = H5SL_create(H5SL_TYPE_HADDR, NULL)))
                HGOTO_ERROR(H5E_CACHE, H5E_CANTCREATE, FAIL, "can't create cleaned entry list")
        } /* end if */

        /* construct the candidate slist for all processes.
         * when the distributed strategy is selected as all processes
         * will use it in the case of a flush.
         */
        if(NULL == (aux_ptr->candidate_slist_ptr = H5SL_create(H5SL_TYPE_HADDR, NULL)))
            HGOTO_ERROR(H5E_CACHE, H5E_CANTCREATE, FAIL, "can't create candidate entry list")

        if(aux_ptr != NULL)
            if(aux_ptr->mpi_rank == 0)
                f->shared->cache = H5C_create(H5AC__DEFAULT_MAX_CACHE_SIZE,
                        H5AC__DEFAULT_MIN_CLEAN_SIZE, (H5AC_NTYPES - 1),
                        H5AC_class_s,
                        H5AC__check_if_write_permitted, TRUE, H5AC__log_flushed_entry,
                        (void *)aux_ptr);
            else
                f->shared->cache = H5C_create(H5AC__DEFAULT_MAX_CACHE_SIZE,
                        H5AC__DEFAULT_MIN_CLEAN_SIZE, (H5AC_NTYPES - 1),
                        H5AC_class_s,
                        H5AC__check_if_write_permitted, TRUE, NULL,
                        (void *)aux_ptr);
        else
            f->shared->cache = H5C_create(H5AC__DEFAULT_MAX_CACHE_SIZE,
                    H5AC__DEFAULT_MIN_CLEAN_SIZE, (H5AC_NTYPES - 1),
                    H5AC_class_s,
                    H5AC__check_if_write_permitted, TRUE, NULL, NULL);
    } /* end if */
    else {
#endif /* H5_HAVE_PARALLEL */
        /* The default max cache size and min clean size will frequently be
         * overwritten shortly by the subsequent set resize config call.
         *                                             -- JRM
         */
        f->shared->cache = H5C_create(H5AC__DEFAULT_MAX_CACHE_SIZE,
                H5AC__DEFAULT_MIN_CLEAN_SIZE, (H5AC_NTYPES - 1),
                H5AC_class_s,
                H5AC__check_if_write_permitted, TRUE, NULL, NULL);
#ifdef H5_HAVE_PARALLEL
    } /* end else */
#endif /* H5_HAVE_PARALLEL */

    if(NULL == f->shared->cache)
        HGOTO_ERROR(H5E_CACHE, H5E_CANTALLOC, FAIL, "memory allocation failed")

#ifdef H5_HAVE_PARALLEL
    if(aux_ptr != NULL)
        if(H5C_set_prefix(f->shared->cache, prefix) < 0)
            HGOTO_ERROR(H5E_CACHE, H5E_CANTALLOC, FAIL, "H5C_set_prefix() failed")
#endif /* H5_HAVE_PARALLEL */

    /* Turn on metadata cache logging, if being used
     * This will be JSON until we create a special API call. Trace output
     * is generated when logging is controlled by the struct.
     */
    if(H5F_USE_MDC_LOGGING(f))
        if(H5C_log_set_up(f->shared->cache, H5F_MDC_LOG_LOCATION(f), H5C_LOG_STYLE_JSON, H5F_START_MDC_LOG_ON_ACCESS(f)) < 0)
            HGOTO_ERROR(H5E_CACHE, H5E_LOGGING, FAIL, "mdc logging setup failed")

    /* Set the cache parameters */
    if(H5AC_set_cache_auto_resize_config(f->shared->cache, config_ptr) < 0)
        HGOTO_ERROR(H5E_CACHE, H5E_CANTSET, FAIL, "auto resize configuration failed")

    /* Don't need to get the current H5C image config here since the
     * cache has just been created, and thus f->shared->cache->image_ctl
     * must still set to its initial value (H5C__DEFAULT_CACHE_IMAGE_CTL).
     * Note that this not true as soon as control returns to the application
     * program, as some test code modifies f->shared->cache->image_ctl.
     */
    int_ci_config.version            = image_config_ptr->version;
    int_ci_config.generate_image     = image_config_ptr->generate_image;
    int_ci_config.save_resize_status = image_config_ptr->save_resize_status;
    int_ci_config.entry_ageout       = image_config_ptr->entry_ageout;
    if(H5C_set_cache_image_config(f, f->shared->cache, &int_ci_config) < 0)
        HGOTO_ERROR(H5E_CACHE, H5E_CANTSET, FAIL, "auto resize configuration failed")

done:
    /* If currently logging, generate a message */
    if(f->shared->cache->log_info->logging)
        if(H5C_log_write_create_cache_msg(f->shared->cache, ret_value) < 0)
            HDONE_ERROR(H5E_CACHE, H5E_LOGGING, FAIL, "unable to emit log message")

#ifdef H5_HAVE_PARALLEL
    /* if there is a failure, try to tidy up the auxiliary structure */
    if(ret_value < 0) {
        if(aux_ptr != NULL) {
            if(aux_ptr->d_slist_ptr != NULL)
                H5SL_close(aux_ptr->d_slist_ptr);
            if(aux_ptr->c_slist_ptr != NULL)
                H5SL_close(aux_ptr->c_slist_ptr);
            if(aux_ptr->candidate_slist_ptr != NULL)
                H5SL_close(aux_ptr->candidate_slist_ptr);
            aux_ptr->magic = 0;
            aux_ptr = H5FL_FREE(H5AC_aux_t, aux_ptr);
        } /* end if */
    } /* end if */
#endif /* H5_HAVE_PARALLEL */

    FUNC_LEAVE_NOAPI(ret_value)
} /* H5AC_create() */


/*-------------------------------------------------------------------------
 * Function:    H5AC_dest
 *
 * Purpose:     Flushes all data to disk and destroys the cache.
 *              This function fails if any object are protected since the
 *              resulting file might not be consistent.
 *
 * Return:      Non-negative on success/Negative on failure
 *
 * Programmer:  Robb Matzke
 *              matzke@llnl.gov
 *              Jul  9 1997
 *
 *-------------------------------------------------------------------------
 */
herr_t
H5AC_dest(H5F_t *f)
{
    hbool_t log_enabled;             /* TRUE if logging was set up */
    hbool_t curr_logging;            /* TRUE if currently logging */
#ifdef H5_HAVE_PARALLEL
    H5AC_aux_t * aux_ptr = NULL;
#endif /* H5_HAVE_PARALLEL */
    herr_t ret_value = SUCCEED;         /* Return value */

    FUNC_ENTER_NOAPI(FAIL)

    /* Sanity check */
    HDassert(f);
    HDassert(f->shared);
    HDassert(f->shared->cache);

#if H5AC_DUMP_STATS_ON_CLOSE
    /* Dump debugging info */
    H5AC_stats(f);
#endif /* H5AC_DUMP_STATS_ON_CLOSE */

    /* Check if log messages are being emitted */
    if(H5C_get_logging_status(f->shared->cache, &log_enabled, &curr_logging) < 0)
        HGOTO_ERROR(H5E_CACHE, H5E_LOGGING, FAIL, "unable to get logging status")
    if(log_enabled && curr_logging)
        if(H5C_log_write_destroy_cache_msg(f->shared->cache) < 0)
            HDONE_ERROR(H5E_CACHE, H5E_LOGGING, FAIL, "unable to emit log message")
    /* Tear down logging */
    if(log_enabled)
        if(H5C_log_tear_down(f->shared->cache) < 0)
            HGOTO_ERROR(H5E_CACHE, H5E_LOGGING, FAIL, "mdc logging tear-down failed")

#ifdef H5_HAVE_PARALLEL
    /* destroying the cache, so clear all collective entries */
    if(H5C_clear_coll_entries(f->shared->cache, FALSE) < 0)
        HGOTO_ERROR(H5E_CACHE, H5E_CANTGET, FAIL, "H5C_clear_coll_entries() failed")

    aux_ptr = (H5AC_aux_t *)H5C_get_aux_ptr(f->shared->cache);
    if(aux_ptr)
        /* Sanity check */
        HDassert(aux_ptr->magic == H5AC__H5AC_AUX_T_MAGIC);

    /* If the file was opened R/W, attempt to flush all entries
     * from rank 0 & Bcast clean list to other ranks.
     *
     * Must not flush in the R/O case, as this will trigger the
     * free space manager settle routines.
     */
    if(H5F_ACC_RDWR & H5F_INTENT(f))
        if(H5AC__flush_entries(f) < 0)
            HGOTO_ERROR(H5E_CACHE, H5E_CANTFLUSH, FAIL, "Can't flush")
#endif /* H5_HAVE_PARALLEL */

    /* Destroy the cache */
    if(H5C_dest(f) < 0)
        HGOTO_ERROR(H5E_CACHE, H5E_CANTFREE, FAIL, "can't destroy cache")
    f->shared->cache = NULL;

#ifdef H5_HAVE_PARALLEL
    if(aux_ptr != NULL) {
        if(aux_ptr->d_slist_ptr != NULL) {
            HDassert(H5SL_count(aux_ptr->d_slist_ptr) == 0);
            H5SL_close(aux_ptr->d_slist_ptr);
        } /* end if */
        if(aux_ptr->c_slist_ptr != NULL) {
            HDassert(H5SL_count(aux_ptr->c_slist_ptr) == 0);
            H5SL_close(aux_ptr->c_slist_ptr);
        } /* end if */
        if(aux_ptr->candidate_slist_ptr != NULL) {
            HDassert(H5SL_count(aux_ptr->candidate_slist_ptr) == 0);
            H5SL_close(aux_ptr->candidate_slist_ptr);
        } /* end if */
        aux_ptr->magic = 0;
        aux_ptr = H5FL_FREE(H5AC_aux_t, aux_ptr);
    } /* end if */
#endif /* H5_HAVE_PARALLEL */

done:
    FUNC_LEAVE_NOAPI(ret_value)
} /* H5AC_dest() */


/*-------------------------------------------------------------------------
 * Function:    H5AC_evict
 *
 * Purpose:     Evict all entries except the pinned entries
 *              in the cache.
 *
 * Return:      Non-negative on success/Negative on failure
 *
 * Programmer:  Vailin Choi
 *              Dec 2013
 *
 *-------------------------------------------------------------------------
 */
herr_t
H5AC_evict(H5F_t *f)
{
    herr_t ret_value = SUCCEED;      /* Return value */

    FUNC_ENTER_NOAPI(FAIL)

    /* Sanity check */
    HDassert(f);
    HDassert(f->shared);
    HDassert(f->shared->cache);

    /* Evict all entries in the cache except the pinned superblock entry */
    if(H5C_evict(f) < 0)
        HGOTO_ERROR(H5E_CACHE, H5E_CANTFREE, FAIL, "can't evict cache")

done:

    /* If currently logging, generate a message */
    if(f->shared->cache->log_info->logging)
        if(H5C_log_write_evict_cache_msg(f->shared->cache, ret_value) < 0)
            HDONE_ERROR(H5E_CACHE, H5E_LOGGING, FAIL, "unable to emit log message")

    FUNC_LEAVE_NOAPI(ret_value)
} /* H5AC_evict() */


/*-------------------------------------------------------------------------
 * Function:    H5AC_expunge_entry
 *
 * Purpose:     Expunge the target entry from the cache without writing it
 *              to disk even if it is dirty.  The entry must not be either
 *              pinned or protected.
 *
 * Return:      Non-negative on success/Negative on failure
 *
 * Programmer:  John Mainzer
 *              6/30/06
 *
 *-------------------------------------------------------------------------
 */
herr_t
H5AC_expunge_entry(H5F_t *f, const H5AC_class_t *type, haddr_t addr,
    unsigned flags)
{
    herr_t  ret_value = SUCCEED;      /* Return value */

    FUNC_ENTER_NOAPI(FAIL)

    /* Sanity checks */
    HDassert(f);
    HDassert(f->shared);
    HDassert(f->shared->cache);
    HDassert(type);
    HDassert(type->serialize);
    HDassert(H5F_addr_defined(addr));

    if(H5C_expunge_entry(f, type, addr, flags) < 0)
        HGOTO_ERROR(H5E_CACHE, H5E_CANTEXPUNGE, FAIL, "H5C_expunge_entry() failed")

done:
    /* If currently logging, generate a message */
    if(f->shared->cache->log_info->logging)
        if(H5C_log_write_expunge_entry_msg(f->shared->cache, addr, type->id, ret_value) < 0)
            HDONE_ERROR(H5E_CACHE, H5E_LOGGING, FAIL, "unable to emit log message")

    FUNC_LEAVE_NOAPI(ret_value)
} /* H5AC_expunge_entry() */


/*-------------------------------------------------------------------------
 * Function:    H5AC_flush
 *
 * Purpose:     Flush (and possibly destroy) the metadata cache associated
 *              with the specified file.
 *
 *              If the cache contains protected entries, the function will
 *              fail, as protected entries cannot be flushed.  However
 *              all unprotected entries should be flushed before the
 *              function returns failure.
 *
 * Return:      Non-negative on success/Negative on failure if there was a
 *              request to flush all items and something was protected.
 *
 * Programmer:  Robb Matzke
 *              matzke@llnl.gov
 *              Jul  9 1997
 *
 *-------------------------------------------------------------------------
 */
herr_t
H5AC_flush(H5F_t *f)
{
    herr_t ret_value = SUCCEED;      /* Return value */

    FUNC_ENTER_NOAPI(FAIL)

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

#ifdef H5_HAVE_PARALLEL
    /* flushing the cache, so clear all collective entries */
    if(H5C_clear_coll_entries(f->shared->cache, FALSE) < 0)
        HGOTO_ERROR(H5E_CACHE, H5E_CANTGET, FAIL, "H5C_clear_coll_entries() failed")

    /* Attempt to flush all entries from rank 0 & Bcast clean list to other ranks */
    if(H5AC__flush_entries(f) < 0)
        HGOTO_ERROR(H5E_CACHE, H5E_CANTFLUSH, FAIL, "Can't flush")
#endif /* H5_HAVE_PARALLEL */

    /* Flush the cache */
    /* (Again, in parallel - writes out the superblock) */
    if(H5C_flush_cache(f, H5AC__NO_FLAGS_SET) < 0)
        HGOTO_ERROR(H5E_CACHE, H5E_CANTFLUSH, FAIL, "Can't flush cache")

done:
    /* If currently logging, generate a message */
    if(f->shared->cache->log_info->logging)
        if(H5C_log_write_flush_cache_msg(f->shared->cache, ret_value) < 0)
            HDONE_ERROR(H5E_CACHE, H5E_LOGGING, FAIL, "unable to emit log message")

    FUNC_LEAVE_NOAPI(ret_value)
} /* H5AC_flush() */


/*-------------------------------------------------------------------------
 * Function:    H5AC_get_entry_status
 *
 * Purpose:     Given a file address, determine whether the metadata
 *              cache contains an entry at that location.  If it does,
 *              also determine whether the entry is dirty, protected,
 *              pinned, etc. and return that information to the caller
 *              in *status.
 *
 *              If the specified entry doesn't exist, set *status_ptr
 *              to zero.
 *
 *              On error, the value of *status is undefined.
 *
 * Return:      Non-negative on success/Negative on failure
 *
 * Programmer:  John Mainzer
 *              4/27/06
 *
 *-------------------------------------------------------------------------
 */
herr_t
H5AC_get_entry_status(const H5F_t *f, haddr_t addr, unsigned *status)
{
    hbool_t     in_cache;               /* Entry @ addr is in the cache */
    hbool_t     is_dirty;               /* Entry @ addr is in the cache and dirty */
    hbool_t     is_protected;           /* Entry @ addr is in the cache and protected */
    hbool_t     is_pinned;              /* Entry @ addr is in the cache and pinned */
    hbool_t     is_corked;
    hbool_t     is_flush_dep_child;     /* Entry @ addr is in the cache and is a flush dependency child */
    hbool_t     is_flush_dep_parent;    /* Entry @ addr is in the cache and is a flush dependency parent */
    hbool_t     image_is_up_to_date;    /* Entry @ addr is in the cache and has an up to date image */
    herr_t      ret_value = SUCCEED;      /* Return value */

    FUNC_ENTER_NOAPI(FAIL)

    if((f == NULL) || (!H5F_addr_defined(addr)) || (status == NULL))
        HGOTO_ERROR(H5E_CACHE, H5E_SYSTEM, FAIL, "Bad param(s) on entry")

    if(H5C_get_entry_status(f, addr, NULL, &in_cache, &is_dirty,
            &is_protected, &is_pinned, &is_corked, &is_flush_dep_parent, &is_flush_dep_child, &image_is_up_to_date) < 0)
        HGOTO_ERROR(H5E_CACHE, H5E_SYSTEM, FAIL, "H5C_get_entry_status() failed")

    if(in_cache) {
        *status |= H5AC_ES__IN_CACHE;
    if(is_dirty)
        *status |= H5AC_ES__IS_DIRTY;
    if(is_protected)
        *status |= H5AC_ES__IS_PROTECTED;
    if(is_pinned)
        *status |= H5AC_ES__IS_PINNED;
    if(is_corked)
        *status |= H5AC_ES__IS_CORKED;
    if(is_flush_dep_parent)
        *status |= H5AC_ES__IS_FLUSH_DEP_PARENT;
    if(is_flush_dep_child)
        *status |= H5AC_ES__IS_FLUSH_DEP_CHILD;
    if(image_is_up_to_date)
        *status |= H5AC_ES__IMAGE_IS_UP_TO_DATE;
    } /* end if */
    else
        *status = 0;

done:
    FUNC_LEAVE_NOAPI(ret_value)
} /* H5AC_get_entry_status() */


/*-------------------------------------------------------------------------
 * Function:    H5AC_insert_entry
 *
 * Purpose:     Adds the specified thing to the cache.  The thing need not
 *              exist on disk yet, but it must have an address and disk
 *              space reserved.
 *
 * Return:      Non-negative on success/Negative on failure
 *
 * Programmer:  Robb Matzke
 *              matzke@llnl.gov
 *              Jul  9 1997
 *
 *-------------------------------------------------------------------------
 */
herr_t
H5AC_insert_entry(H5F_t *f, const H5AC_class_t *type, haddr_t addr, void *thing,
    unsigned int flags)
{
    herr_t ret_value = SUCCEED;      /* Return value */

    FUNC_ENTER_NOAPI(FAIL)

    /* Sanity checks */
    HDassert(f);
    HDassert(f->shared);
    HDassert(f->shared->cache);
    HDassert(type);
    HDassert(type->serialize);
    HDassert(H5F_addr_defined(addr));
    HDassert(thing);

    /* Check for invalid access request */
    if(0 == (H5F_INTENT(f) & H5F_ACC_RDWR))
        HGOTO_ERROR(H5E_CACHE, H5E_BADVALUE, FAIL, "no write intent on file")

#if H5AC_DO_TAGGING_SANITY_CHECKS
    if(!H5C_get_ignore_tags(f->shared->cache) && H5AC__verify_tag(type) < 0)
        HGOTO_ERROR(H5E_CACHE, H5E_CANTTAG, FAIL, "Bad tag value")
#endif /* H5AC_DO_TAGGING_SANITY_CHECKS */

    /* Insert entry into metadata cache */
    if(H5C_insert_entry(f, type, addr, thing, flags) < 0)
        HGOTO_ERROR(H5E_CACHE, H5E_CANTINS, FAIL, "H5C_insert_entry() failed")

#ifdef H5_HAVE_PARALLEL
{
    H5AC_aux_t *aux_ptr;

    if(NULL != (aux_ptr = (H5AC_aux_t *)H5C_get_aux_ptr(f->shared->cache))) {
        /* Log the new entry */
        if(H5AC__log_inserted_entry((H5AC_info_t *)thing) < 0)
            HGOTO_ERROR(H5E_CACHE, H5E_CANTINS, FAIL, "H5AC__log_inserted_entry() failed")

        /* Check if we should try to flush */
        if(aux_ptr->dirty_bytes >= aux_ptr->dirty_bytes_threshold)
            if(H5AC__run_sync_point(f, H5AC_SYNC_POINT_OP__FLUSH_TO_MIN_CLEAN) < 0)
                HGOTO_ERROR(H5E_CACHE, H5E_CANTFLUSH, FAIL, "Can't run sync point")
    } /* end if */
}
#endif /* H5_HAVE_PARALLEL */

done:
    /* If currently logging, generate a message */
    if(f->shared->cache->log_info->logging)
        if(H5C_log_write_insert_entry_msg(f->shared->cache, addr, type->id, flags, ((H5C_cache_entry_t *)thing)->size, ret_value) < 0)
            HDONE_ERROR(H5E_CACHE, H5E_LOGGING, FAIL, "unable to emit log message")

    FUNC_LEAVE_NOAPI(ret_value)
} /* H5AC_insert_entry() */


/*-------------------------------------------------------------------------
 * Function:    H5AC_load_cache_image_on_next_protect
 *
 * Purpose:     Load the cache image block at the specified location,
 *              decode it, and insert its contents into the metadata
 *              cache.
 *
 * Return:      Non-negative on success/Negative on failure
 *
 * Programmer:  John Mainzer
 *              7/6/15
 *
 *-------------------------------------------------------------------------
 */
herr_t
H5AC_load_cache_image_on_next_protect(H5F_t * f, haddr_t addr, hsize_t len,
    hbool_t rw)
{
    herr_t              ret_value = SUCCEED;    /* Return value */

    FUNC_ENTER_NOAPI(FAIL)

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

    if(H5C_load_cache_image_on_next_protect(f, addr, len, rw) < 0)
        HGOTO_ERROR(H5E_CACHE, H5E_CANTLOAD, FAIL, "call to H5C_load_cache_image_on_next_protect failed")

done:
    FUNC_LEAVE_NOAPI(ret_value)
} /* H5AC_load_cache_image_on_next_protect() */


/*-------------------------------------------------------------------------
 * Function:    H5AC_mark_entry_dirty
 *
 * Purpose:     Mark a pinned or protected entry as dirty.  The target
 *              entry MUST be either pinned, protected, or both.
 *
 * Return:      Non-negative on success/Negative on failure
 *
 * Programmer:  John Mainzer
 *              5/16/06
 *
 *-------------------------------------------------------------------------
 */
herr_t
H5AC_mark_entry_dirty(void *thing)
{
    H5AC_info_t *entry_ptr = NULL;    /* Pointer to the cache entry */
    H5C_t *cache_ptr = NULL;          /* Pointer to the entry's associated metadata cache */
    herr_t ret_value = SUCCEED;       /* Return value */

    FUNC_ENTER_NOAPI(FAIL)

    /* Sanity check */
    HDassert(thing);

    /* Set up entry & cache pointers */
    entry_ptr = (H5AC_info_t *)thing;
    cache_ptr = entry_ptr->cache_ptr;

#ifdef H5_HAVE_PARALLEL
{
    H5AC_aux_t *aux_ptr;

    aux_ptr = (H5AC_aux_t *)H5C_get_aux_ptr(cache_ptr);
    if((!entry_ptr->is_dirty) && (!entry_ptr->is_protected) &&
             (entry_ptr->is_pinned) && (NULL != aux_ptr))
        if(H5AC__log_dirtied_entry(entry_ptr) < 0)
            HGOTO_ERROR(H5E_CACHE, H5E_CANTMARKDIRTY, FAIL, "can't log dirtied entry")
}
#endif /* H5_HAVE_PARALLEL */

    if(H5C_mark_entry_dirty(thing) < 0)
        HGOTO_ERROR(H5E_CACHE, H5E_CANTMARKDIRTY, FAIL, "can't mark pinned or protected entry dirty")

done:
    /* If currently logging, generate a message */
    if(cache_ptr != NULL && cache_ptr->log_info != NULL)
        if(cache_ptr->log_info->logging)
            if(H5C_log_write_mark_entry_dirty_msg(cache_ptr, entry_ptr, ret_value) < 0)
                HDONE_ERROR(H5E_CACHE, H5E_LOGGING, FAIL, "unable to emit log message")

    FUNC_LEAVE_NOAPI(ret_value)
} /* H5AC_mark_entry_dirty() */


/*-------------------------------------------------------------------------
 * Function:    H5AC_mark_entry_clean
 *
 * Purpose:     Mark a pinned entry as clean.  The target
 *              entry MUST be pinned.
 *
 * Return:      Non-negative on success/Negative on failure
 *
 * Programmer:  Quincey Koziol
 *              7/23/16
 *
 *-------------------------------------------------------------------------
 */
herr_t
H5AC_mark_entry_clean(void *thing)
{
    H5AC_info_t *entry_ptr = NULL;    /* Pointer to the cache entry */
    H5C_t *cache_ptr = NULL;          /* Pointer to the entry's associated metadata cache */
    herr_t ret_value = SUCCEED;       /* Return value */

    FUNC_ENTER_NOAPI(FAIL)

    /* Sanity check */
    HDassert(thing);

    entry_ptr = (H5AC_info_t *)thing;
    cache_ptr = entry_ptr->cache_ptr;

#ifdef H5_HAVE_PARALLEL
{
    H5AC_aux_t *aux_ptr;

    aux_ptr = (H5AC_aux_t *)H5C_get_aux_ptr(cache_ptr);
    if((!entry_ptr->is_dirty) && (!entry_ptr->is_protected) &&
             (entry_ptr->is_pinned) && (NULL != aux_ptr))
        if(H5AC__log_cleaned_entry(entry_ptr) < 0)
            HGOTO_ERROR(H5E_CACHE, H5E_CANTMARKCLEAN, FAIL, "can't log cleaned entry")
}
#endif /* H5_HAVE_PARALLEL */

    if(H5C_mark_entry_clean(thing) < 0)
        HGOTO_ERROR(H5E_CACHE, H5E_CANTMARKCLEAN, FAIL, "can't mark pinned or protected entry clean")

done:
    /* If currently logging, generate a message */
    if(cache_ptr != NULL && cache_ptr->log_info != NULL)
        if(cache_ptr->log_info->logging)
            if(H5C_log_write_mark_entry_clean_msg(cache_ptr, entry_ptr, ret_value) < 0)
                HDONE_ERROR(H5E_CACHE, H5E_LOGGING, FAIL, "unable to emit log message")

    FUNC_LEAVE_NOAPI(ret_value)
} /* H5AC_mark_entry_clean() */


/*-------------------------------------------------------------------------
 * Function:    H5AC_mark_entry_unserialized
 *
 * Purpose:     Mark a pinned or protected entry as unserialized.  The target
 *              entry MUST be either pinned, protected, or both.
 *
 * Return:      Non-negative on success/Negative on failure
 *
 * Programmer:  Quincey Koziol
 *              12/22/16
 *
 *-------------------------------------------------------------------------
 */
herr_t
H5AC_mark_entry_unserialized(void *thing)
{
    H5AC_info_t *entry_ptr = NULL;    /* Pointer to the cache entry */
    H5C_t *cache_ptr = NULL;          /* Pointer to the entry's associated metadata cache */
    herr_t ret_value = SUCCEED;       /* Return value */

    FUNC_ENTER_NOAPI(FAIL)

    /* Sanity check */
    HDassert(thing);

    /* Set up entry & cache pointers */
    entry_ptr = (H5AC_info_t *)thing;
    cache_ptr = entry_ptr->cache_ptr;

    if(H5C_mark_entry_unserialized(thing) < 0)
        HGOTO_ERROR(H5E_CACHE, H5E_CANTMARKUNSERIALIZED, FAIL, "can't mark entry unserialized")

done:
    /* If currently logging, generate a message */
    if(cache_ptr != NULL && cache_ptr->log_info != NULL)
        if(cache_ptr->log_info->logging)
            if(H5C_log_write_mark_unserialized_entry_msg(cache_ptr, entry_ptr, ret_value) < 0)
                HDONE_ERROR(H5E_CACHE, H5E_LOGGING, FAIL, "unable to emit log message")

    FUNC_LEAVE_NOAPI(ret_value)
} /* H5AC_mark_entry_unserialized() */


/*-------------------------------------------------------------------------
 * Function:    H5AC_mark_entry_serialized
 *
 * Purpose:     Mark a pinned entry as serialized.  The target
 *              entry MUST be pinned.
 *
 * Return:      Non-negative on success/Negative on failure
 *
 * Programmer:  Quincey Koziol
 *              12/22/16
 *
 *-------------------------------------------------------------------------
 */
herr_t
H5AC_mark_entry_serialized(void *thing)
{
    H5AC_info_t *entry_ptr = NULL;    /* Pointer to the cache entry */
    H5C_t *cache_ptr = NULL;          /* Pointer to the entry's associated metadata cache */
    herr_t ret_value = SUCCEED;       /* Return value */

    FUNC_ENTER_NOAPI(FAIL)

    /* Sanity check */
    HDassert(thing);

    entry_ptr = (H5AC_info_t *)thing;
    cache_ptr = entry_ptr->cache_ptr;

    if(H5C_mark_entry_serialized(thing) < 0)
        HGOTO_ERROR(H5E_CACHE, H5E_CANTMARKSERIALIZED, FAIL, "can't mark entry serialized")

done:
    /* If currently logging, generate a message */
    if(cache_ptr != NULL && cache_ptr->log_info != NULL)
        if(cache_ptr->log_info->logging)
            if(H5C_log_write_mark_serialized_entry_msg(cache_ptr, entry_ptr, ret_value) < 0)
                HDONE_ERROR(H5E_CACHE, H5E_LOGGING, FAIL, "unable to emit log message")

    FUNC_LEAVE_NOAPI(ret_value)
} /* H5AC_mark_entry_serialized() */


/*-------------------------------------------------------------------------
 * Function:    H5AC_move_entry
 *
 * Purpose:     Use this function to notify the cache that an object's
 *              file address changed.
 *
 * Return:      Non-negative on success/Negative on failure
 *
 * Programmer:  Robb Matzke
 *              matzke@llnl.gov
 *              Jul  9 1997
 *
 *-------------------------------------------------------------------------
 */
herr_t
H5AC_move_entry(H5F_t *f, const H5AC_class_t *type, haddr_t old_addr, haddr_t new_addr)
{
#ifdef H5_HAVE_PARALLEL
    H5AC_aux_t        *aux_ptr;
#endif /* H5_HAVE_PARALLEL */
    herr_t ret_value = SUCCEED;    /* Return value */

    FUNC_ENTER_NOAPI(FAIL)

    /* Sanity checks */
    HDassert(f);
    HDassert(f->shared->cache);
    HDassert(type);
    HDassert(H5F_addr_defined(old_addr));
    HDassert(H5F_addr_defined(new_addr));
    HDassert(H5F_addr_ne(old_addr, new_addr));

#ifdef H5_HAVE_PARALLEL
    /* Log moving the entry */
    if(NULL != (aux_ptr = (H5AC_aux_t *)H5C_get_aux_ptr(f->shared->cache)))
        if(H5AC__log_moved_entry(f, old_addr, new_addr) < 0)
            HGOTO_ERROR(H5E_CACHE, H5E_CANTUNPROTECT, FAIL, "can't log moved entry")
#endif /* H5_HAVE_PARALLEL */

    if(H5C_move_entry(f->shared->cache, type, old_addr, new_addr) < 0)
        HGOTO_ERROR(H5E_CACHE, H5E_CANTMOVE, FAIL, "H5C_move_entry() failed")

#ifdef H5_HAVE_PARALLEL
    /* Check if we should try to flush */
    if(NULL != aux_ptr && aux_ptr->dirty_bytes >= aux_ptr->dirty_bytes_threshold)
        if(H5AC__run_sync_point(f, H5AC_SYNC_POINT_OP__FLUSH_TO_MIN_CLEAN) < 0)
            HGOTO_ERROR(H5E_CACHE, H5E_CANTFLUSH, FAIL, "Can't run sync point")
#endif /* H5_HAVE_PARALLEL */

done:
    /* If currently logging, generate a message */
    if(f->shared->cache->log_info->logging)
        if(H5C_log_write_move_entry_msg(f->shared->cache, old_addr, new_addr, type->id, ret_value) < 0)
            HDONE_ERROR(H5E_CACHE, H5E_LOGGING, FAIL, "unable to emit log message")

    FUNC_LEAVE_NOAPI(ret_value)
} /* H5AC_move_entry() */


/*-------------------------------------------------------------------------
 * Function:    H5AC_pin_protected_entry()
 *
 * Purpose:     Pin a protected cache entry.  The entry must be protected
 *              at the time of call, and must be unpinned.
 *
 * Return:      Non-negative on success/Negative on failure
 *
 * Programmer:  John Mainzer
 *              4/27/06
 *
 *-------------------------------------------------------------------------
 */
herr_t
H5AC_pin_protected_entry(void *thing)
{
    H5AC_info_t *entry_ptr = NULL;      /* Pointer to the cache entry */
    H5C_t *cache_ptr = NULL;            /* Pointer to the entry's associated metadata cache */
    herr_t      ret_value = SUCCEED;    /* Return value */

    FUNC_ENTER_NOAPI(FAIL)

    /* Sanity check */
    HDassert(thing);

    entry_ptr = (H5AC_info_t *)thing;
    cache_ptr = entry_ptr->cache_ptr;
    HDassert(cache_ptr);

    /* Pin entry */
    if(H5C_pin_protected_entry(thing) < 0)
        HGOTO_ERROR(H5E_CACHE, H5E_CANTPIN, FAIL, "can't pin entry")

done:
    /* If currently logging, generate a message */
    if(cache_ptr != NULL && cache_ptr->log_info != NULL)
        if(cache_ptr->log_info->logging)
            if(H5C_log_write_pin_entry_msg(cache_ptr, entry_ptr, ret_value) < 0)
                HDONE_ERROR(H5E_CACHE, H5E_LOGGING, FAIL, "unable to emit log message")

    FUNC_LEAVE_NOAPI(ret_value)
} /* H5AC_pin_protected_entry() */


/*-------------------------------------------------------------------------
 *
 * Function:    H5AC_prep_for_file_close
 *
 * Purpose:     This function should be called just prior to the cache
 *              flushes at file close.
 *
 *              The objective of the call is to allow the metadata cache
 *              to do any preparatory work prior to generation of a
 *              cache image.
 *
 * Return:      Non-negative on success/Negative on failure
 *
 * Programmer:  John Mainzer
 *              7/3/15
 *
 *-------------------------------------------------------------------------
 */
herr_t
H5AC_prep_for_file_close(H5F_t *f)
{
    herr_t ret_value = SUCCEED;         /* Return value */

    FUNC_ENTER_NOAPI(FAIL)

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

    if(H5C_prep_for_file_close(f) < 0)
        HGOTO_ERROR(H5E_CACHE, H5E_SYSTEM, FAIL, "cache prep for file close failed")

done:
    FUNC_LEAVE_NOAPI(ret_value)
} /* H5AC_prep_for_file_close() */


/*-------------------------------------------------------------------------
 * Function:    H5AC_create_flush_dependency()
 *
 * Purpose:     Create a flush dependency between two entries in the metadata
 *              cache.
 *
 * Return:      Non-negative on success/Negative on failure
 *
 * Programmer:  Quincey Koziol
 *              3/24/09
 *
 *-------------------------------------------------------------------------
 */
herr_t
H5AC_create_flush_dependency(void * parent_thing, void * child_thing)
{
    H5AC_info_t *entry_ptr = NULL;      /* Pointer to the cache entry */
    H5C_t *cache_ptr = NULL;            /* Pointer to the entry's associated metadata cache */
    herr_t      ret_value = SUCCEED;    /* Return value */

    FUNC_ENTER_NOAPI(FAIL)

    /* Sanity check */
    HDassert(parent_thing);
    HDassert(child_thing);

    entry_ptr = (H5AC_info_t *)parent_thing;
    cache_ptr = entry_ptr->cache_ptr;
    HDassert(cache_ptr);

    /* Create the flush dependency */
    if(H5C_create_flush_dependency(parent_thing, child_thing) < 0)
        HGOTO_ERROR(H5E_CACHE, H5E_CANTDEPEND, FAIL, "H5C_create_flush_dependency() failed")

done:
    /* If currently logging, generate a message */
    if(cache_ptr != NULL && cache_ptr->log_info != NULL)
        if(cache_ptr->log_info->logging)
            if(H5C_log_write_create_fd_msg(cache_ptr, (H5AC_info_t *)parent_thing, (H5AC_info_t *)child_thing, ret_value) < 0)
                HDONE_ERROR(H5E_CACHE, H5E_LOGGING, FAIL, "unable to emit log message")

    FUNC_LEAVE_NOAPI(ret_value)
} /* H5AC_create_flush_dependency() */


/*-------------------------------------------------------------------------
 * Function:    H5AC_protect
 *
 * Purpose:     If the target entry is not in the cache, load it.  If
 *              necessary, attempt to evict one or more entries to keep
 *              the cache within its maximum size.
 *
 *              Mark the target entry as protected, and return its address
 *              to the caller.  The caller must call H5AC_unprotect() when
 *              finished with the entry.
 *
 *              While it is protected, the entry may not be either evicted
 *              or flushed -- nor may it be accessed by another call to
 *              H5AC_protect.  Any attempt to do so will result in a failure.
 *
 * Return:      Success:        Ptr to the object.
 *              Failure:        NULL
 *
 * Programmer:  Robb Matzke
 *              matzke@llnl.gov
 *              Sep  2 1997
 *
 *-------------------------------------------------------------------------
 */
void *
H5AC_protect(H5F_t *f, const H5AC_class_t *type, haddr_t addr, void *udata,
    unsigned flags)
{
    void *              thing = NULL;           /* Pointer to native data structure for entry */
    void *              ret_value = NULL;       /* Return value */

    FUNC_ENTER_NOAPI(NULL)

    /* Sanity check */
    HDassert(f);
    HDassert(f->shared);
    HDassert(f->shared->cache);
    HDassert(type);
    HDassert(type->serialize);
    HDassert(H5F_addr_defined(addr));

    /* Check for unexpected flags -- H5C__FLUSH_COLLECTIVELY_FLAG
     * only permitted in the parallel case.
     */
#ifdef H5_HAVE_PARALLEL
    HDassert(0 == (flags & (unsigned)(~(H5C__READ_ONLY_FLAG | \
                                        H5C__FLUSH_LAST_FLAG | \
                                        H5C__FLUSH_COLLECTIVELY_FLAG))));
#else /* H5_HAVE_PARALLEL */
    HDassert(0 == (flags & (unsigned)(~(H5C__READ_ONLY_FLAG | \
                                        H5C__FLUSH_LAST_FLAG))));
#endif /* H5_HAVE_PARALLEL */

    /* Check for invalid access request */
    if((0 == (H5F_INTENT(f) & H5F_ACC_RDWR)) && (0 == (flags & H5C__READ_ONLY_FLAG)))
        HGOTO_ERROR(H5E_CACHE, H5E_BADVALUE, NULL, "no write intent on file")

#if H5AC_DO_TAGGING_SANITY_CHECKS
    if(!H5C_get_ignore_tags(f->shared->cache) && H5AC__verify_tag(type) < 0)
        HGOTO_ERROR(H5E_CACHE, H5E_CANTTAG, NULL, "Bad tag value")
#endif /* H5AC_DO_TAGGING_SANITY_CHECKS */

    if(NULL == (thing = H5C_protect(f, type, addr, udata, flags)))
        HGOTO_ERROR(H5E_CACHE, H5E_CANTPROTECT, NULL, "H5C_protect() failed")

    /* Set return value */
    ret_value = thing;

done:
    /* If currently logging, generate a message */
    {
        herr_t fake_ret_value = (NULL == ret_value) ? FAIL : SUCCEED;

        if(f->shared->cache->log_info->logging)
            if(H5C_log_write_protect_entry_msg(f->shared->cache, (H5AC_info_t *)thing, type->id, flags, fake_ret_value) < 0)
                HDONE_ERROR(H5E_CACHE, H5E_LOGGING, NULL, "unable to emit log message")
    }

    FUNC_LEAVE_NOAPI(ret_value)
} /* H5AC_protect() */


/*-------------------------------------------------------------------------
 * Function:    H5AC_resize_entry
 *
 * Purpose:     Resize a pinned or protected entry.
 *
 * Return:      Non-negative on success/Negative on failure
 *
 * Programmer:  John Mainzer
 *              7/5/06
 *
 *-------------------------------------------------------------------------
 */
herr_t
H5AC_resize_entry(void *thing, size_t new_size)
{
    H5AC_info_t *entry_ptr = NULL;    /* Pointer to the cache entry */
    H5C_t *cache_ptr = NULL;          /* Pointer to the entry's associated metadata cache */
    herr_t ret_value = SUCCEED;       /* Return value */

    FUNC_ENTER_NOAPI(FAIL)

    /* Sanity check */
    HDassert(thing);

    entry_ptr = (H5AC_info_t *)thing;
    cache_ptr = entry_ptr->cache_ptr;
    HDassert(cache_ptr);

    /* Resize the entry */
    if(H5C_resize_entry(thing, new_size) < 0)
        HGOTO_ERROR(H5E_CACHE, H5E_CANTRESIZE, FAIL, "can't resize entry")

#ifdef H5_HAVE_PARALLEL
{
    H5AC_aux_t *aux_ptr;

    aux_ptr = (H5AC_aux_t *)H5C_get_aux_ptr(cache_ptr);
    if((!entry_ptr->is_dirty) && (NULL != aux_ptr))
        if(H5AC__log_dirtied_entry(entry_ptr) < 0)
            HGOTO_ERROR(H5E_CACHE, H5E_CANTMARKDIRTY, FAIL, "can't log dirtied entry")
}
#endif /* H5_HAVE_PARALLEL */

done:
    /* If currently logging, generate a message */
    if(cache_ptr != NULL && cache_ptr->log_info != NULL)
        if(cache_ptr->log_info->logging)
            if(H5C_log_write_resize_entry_msg(cache_ptr, entry_ptr, new_size, ret_value) < 0)
                HDONE_ERROR(H5E_CACHE, H5E_LOGGING, FAIL, "unable to emit log message")

    FUNC_LEAVE_NOAPI(ret_value)
} /* H5AC_resize_entry() */


/*-------------------------------------------------------------------------
 * Function:    H5AC_unpin_entry()
 *
 * Purpose:     Unpin a cache entry.  The entry must be unprotected at
 *              the time of call, and must be pinned.
 *
 * Return:      Non-negative on success/Negative on failure
 *
 * Programmer:  John Mainzer
 *              4/11/06
 *
 *-------------------------------------------------------------------------
 */
herr_t
H5AC_unpin_entry(void *thing)
{
    H5AC_info_t *entry_ptr = NULL;    /* Pointer to the cache entry */
    H5C_t *cache_ptr = NULL;          /* Pointer to the entry's associated metadata cache */
    herr_t      ret_value = SUCCEED;    /* Return value */

    FUNC_ENTER_NOAPI(FAIL)

    /* Sanity check */
    HDassert(thing);

    entry_ptr = (H5AC_info_t *)thing;
    cache_ptr = entry_ptr->cache_ptr;
    HDassert(cache_ptr);

    /* Unpin the entry */
    if(H5C_unpin_entry(thing) < 0)
        HGOTO_ERROR(H5E_CACHE, H5E_CANTUNPIN, FAIL, "can't unpin entry")

done:
    /* If currently logging, generate a message */
    if(cache_ptr != NULL && cache_ptr->log_info != NULL)
        if(cache_ptr->log_info->logging)
            if(H5C_log_write_unpin_entry_msg(cache_ptr, entry_ptr, ret_value) < 0)
                HDONE_ERROR(H5E_CACHE, H5E_LOGGING, FAIL, "unable to emit log message")

    FUNC_LEAVE_NOAPI(ret_value)
} /* H5AC_unpin_entry() */


/*-------------------------------------------------------------------------
 * Function:    H5AC_destroy_flush_dependency()
 *
 * Purpose:     Destroy a flush dependency between two entries.
 *
 * Return:      Non-negative on success/Negative on failure
 *
 * Programmer:  Quincey Koziol
 *              3/24/09
 *
 *-------------------------------------------------------------------------
 */
herr_t
H5AC_destroy_flush_dependency(void * parent_thing, void * child_thing)
{
    H5AC_info_t *entry_ptr = NULL;      /* Pointer to the cache entry */
    H5C_t *cache_ptr = NULL;            /* Pointer to the entry's associated metadata cache */
    herr_t      ret_value = SUCCEED;    /* Return value */

    FUNC_ENTER_NOAPI(FAIL)

    /* Sanity check */
    HDassert(parent_thing);
    HDassert(child_thing);

    entry_ptr = (H5AC_info_t *)parent_thing;
    cache_ptr = entry_ptr->cache_ptr;
    HDassert(cache_ptr);

    /* Destroy the flush dependency */
    if(H5C_destroy_flush_dependency(parent_thing, child_thing) < 0)
        HGOTO_ERROR(H5E_CACHE, H5E_CANTUNDEPEND, FAIL, "H5C_destroy_flush_dependency() failed")

done:
    /* If currently logging, generate a message */
    if(cache_ptr != NULL && cache_ptr->log_info != NULL)
        if(cache_ptr->log_info->logging)
            if(H5C_log_write_destroy_fd_msg(cache_ptr, (H5AC_info_t *)parent_thing, (H5AC_info_t *)child_thing, ret_value) < 0)
                HDONE_ERROR(H5E_CACHE, H5E_LOGGING, FAIL, "unable to emit log message")

    FUNC_LEAVE_NOAPI(ret_value)
} /* H5AC_destroy_flush_dependency() */


/*-------------------------------------------------------------------------
 * Function:    H5AC_unprotect
 *
 * Purpose:     Undo an H5AC_protect() call -- specifically, mark the
 *              entry as unprotected, remove it from the protected list,
 *              and give it back to the replacement policy.
 *
 *              The TYPE and ADDR arguments must be the same as those in
 *              the corresponding call to H5AC_protect() and the THING
 *              argument must be the value returned by that call to
 *              H5AC_protect().
 *
 *              If the deleted flag is TRUE, simply remove the target entry
 *              from the cache, clear it, and free it without writing it to
 *              disk.
 *
 *              This version of the function is a complete re-write to
 *              use the new metadata cache.  While there isn't all that
 *              much difference between the old and new Purpose sections,
 *              the original version is given below.
 *
 *              Original purpose section:
 *
 *              This function should be called to undo the effect of
 *              H5AC_protect().  The TYPE and ADDR arguments should be the
 *              same as the corresponding call to H5AC_protect() and the
 *              THING argument should be the value returned by H5AC_protect().
 *              If the DELETED flag is set, then this object has been deleted
 *              from the file and should not be returned to the cache.
 *
 * Return:      Non-negative on success/Negative on failure
 *
 * Programmer:  Robb Matzke
 *              matzke@llnl.gov
 *              Sep  2 1997
 *
 *-------------------------------------------------------------------------
 */
herr_t
H5AC_unprotect(H5F_t *f, const H5AC_class_t *type, haddr_t addr, void *thing,
    unsigned flags)
{
    hbool_t        dirtied;
    hbool_t        deleted;
#ifdef H5_HAVE_PARALLEL
    H5AC_aux_t        * aux_ptr = NULL;
#endif /* H5_HAVE_PARALLEL */
    herr_t              ret_value=SUCCEED;      /* Return value */

    FUNC_ENTER_NOAPI(FAIL)

    /* Sanity checks */
    HDassert(f);
    HDassert(f->shared);
    HDassert(f->shared->cache);
    HDassert(type);
    HDassert(type->deserialize);
    HDassert(type->image_len);
    HDassert(H5F_addr_defined(addr));
    HDassert(thing);
    HDassert( ((H5AC_info_t *)thing)->addr == addr );
    HDassert( ((H5AC_info_t *)thing)->type == type );

    dirtied = (hbool_t)(((flags & H5AC__DIRTIED_FLAG) == H5AC__DIRTIED_FLAG) ||
        (((H5AC_info_t *)thing)->dirtied));
    deleted = (hbool_t)((flags & H5C__DELETED_FLAG) == H5C__DELETED_FLAG);

    /* Check if the size changed out from underneath us, if we're not deleting
     *  the entry.
     */
    if(dirtied && !deleted) {
        size_t        curr_size = 0;

        if((type->image_len)(thing, &curr_size) < 0)
            HGOTO_ERROR(H5E_CACHE, H5E_CANTGETSIZE, FAIL, "Can't get size of thing")

        if(((H5AC_info_t *)thing)->size != curr_size)
            HGOTO_ERROR(H5E_CACHE, H5E_BADSIZE, FAIL, "size of entry changed")
    } /* end if */

#ifdef H5_HAVE_PARALLEL
    if(NULL != (aux_ptr = (H5AC_aux_t *)H5C_get_aux_ptr(f->shared->cache))) {
        if(dirtied && ((H5AC_info_t *)thing)->is_dirty == FALSE)
            if(H5AC__log_dirtied_entry((H5AC_info_t *)thing) < 0)
                HGOTO_ERROR(H5E_CACHE, H5E_CANTUNPROTECT, FAIL, "can't log dirtied entry")

        if(deleted && aux_ptr->mpi_rank == 0)
            if(H5AC__log_deleted_entry((H5AC_info_t *)thing) < 0)
                HGOTO_ERROR(H5E_CACHE, H5E_CANTUNPROTECT, FAIL, "H5AC__log_deleted_entry() failed")
    } /* end if */
#endif /* H5_HAVE_PARALLEL */

    if(H5C_unprotect(f, addr, thing, flags) < 0)
        HGOTO_ERROR(H5E_CACHE, H5E_CANTUNPROTECT, FAIL, "H5C_unprotect() failed")

#ifdef H5_HAVE_PARALLEL
    /* Check if we should try to flush */
    if((aux_ptr != NULL) && (aux_ptr->dirty_bytes >= aux_ptr->dirty_bytes_threshold))
        if(H5AC__run_sync_point(f, H5AC_SYNC_POINT_OP__FLUSH_TO_MIN_CLEAN) < 0)
            HGOTO_ERROR(H5E_CACHE, H5E_CANTFLUSH, FAIL, "Can't run sync point")
#endif /* H5_HAVE_PARALLEL */

done:
    /* If currently logging, generate a message */
    if(f->shared->cache->log_info->logging)
        if(H5C_log_write_unprotect_entry_msg(f->shared->cache, addr, type->id, flags, ret_value) < 0)
            HDONE_ERROR(H5E_CACHE, H5E_LOGGING, FAIL, "unable to emit log message")

    FUNC_LEAVE_NOAPI(ret_value)
} /* H5AC_unprotect() */


/*-------------------------------------------------------------------------
 * Function:    H5AC_get_cache_auto_resize_config
 *
 * Purpose:     Wrapper function for H5C_get_cache_auto_resize_config().
 *
 * Return:      SUCCEED on success, and FAIL on failure.
 *
 * Programmer:  John Mainzer
 *              3/10/05
 *
 *-------------------------------------------------------------------------
 */
herr_t
H5AC_get_cache_auto_resize_config(const H5AC_t *cache_ptr,
    H5AC_cache_config_t *config_ptr)
{
    H5C_auto_size_ctl_t internal_config;
    hbool_t evictions_enabled;
    herr_t ret_value = SUCCEED;      /* Return value */

    FUNC_ENTER_NOAPI(FAIL)

    /* Check args */
    if((cache_ptr == NULL) || (config_ptr == NULL) ||
            (config_ptr->version != H5AC__CURR_CACHE_CONFIG_VERSION))
        HGOTO_ERROR(H5E_CACHE, H5E_SYSTEM, FAIL, "Bad cache_ptr or config_ptr on entry")
#ifdef H5_HAVE_PARALLEL
{
    H5AC_aux_t *aux_ptr;

    aux_ptr = (H5AC_aux_t *)H5C_get_aux_ptr(cache_ptr);
    if((aux_ptr != NULL) && (aux_ptr->magic != H5AC__H5AC_AUX_T_MAGIC))
        HGOTO_ERROR(H5E_CACHE, H5E_SYSTEM, FAIL, "Bad aux_ptr on entry")
}
#endif /* H5_HAVE_PARALLEL */

    /* Retrieve the configuration */
    if(H5C_get_cache_auto_resize_config((const H5C_t *)cache_ptr, &internal_config) < 0)
        HGOTO_ERROR(H5E_CACHE, H5E_SYSTEM, FAIL, "H5C_get_cache_auto_resize_config() failed")
    if(H5C_get_evictions_enabled((const H5C_t *)cache_ptr, &evictions_enabled) < 0)
        HGOTO_ERROR(H5E_CACHE, H5E_SYSTEM, FAIL, "H5C_get_resize_enabled() failed")

    /* Set the information to return */
    if(internal_config.rpt_fcn == NULL)
        config_ptr->rpt_fcn_enabled = FALSE;
    else
    config_ptr->rpt_fcn_enabled = TRUE;
    config_ptr->open_trace_file        = FALSE;
    config_ptr->close_trace_file       = FALSE;
    config_ptr->trace_file_name[0]     = '\0';
    config_ptr->evictions_enabled      = evictions_enabled;
    config_ptr->set_initial_size       = internal_config.set_initial_size;
    config_ptr->initial_size           = internal_config.initial_size;
    config_ptr->min_clean_fraction     = internal_config.min_clean_fraction;
    config_ptr->max_size               = internal_config.max_size;
    config_ptr->min_size               = internal_config.min_size;
    config_ptr->epoch_length           = (long)(internal_config.epoch_length);
    config_ptr->incr_mode              = internal_config.incr_mode;
    config_ptr->lower_hr_threshold     = internal_config.lower_hr_threshold;
    config_ptr->increment              = internal_config.increment;
    config_ptr->apply_max_increment    = internal_config.apply_max_increment;
    config_ptr->max_increment          = internal_config.max_increment;
    config_ptr->decr_mode              = internal_config.decr_mode;
    config_ptr->upper_hr_threshold     = internal_config.upper_hr_threshold;
    config_ptr->flash_incr_mode        = internal_config.flash_incr_mode;
    config_ptr->flash_multiple         = internal_config.flash_multiple;
    config_ptr->flash_threshold        = internal_config.flash_threshold;
    config_ptr->decrement              = internal_config.decrement;
    config_ptr->apply_max_decrement    = internal_config.apply_max_decrement;
    config_ptr->max_decrement          = internal_config.max_decrement;
    config_ptr->epochs_before_eviction = (int)(internal_config.epochs_before_eviction);
    config_ptr->apply_empty_reserve    = internal_config.apply_empty_reserve;
    config_ptr->empty_reserve          = internal_config.empty_reserve;
#ifdef H5_HAVE_PARALLEL
{
    H5AC_aux_t *aux_ptr;

    if(NULL != (aux_ptr = (H5AC_aux_t *)H5C_get_aux_ptr(cache_ptr))) {
        config_ptr->dirty_bytes_threshold = aux_ptr->dirty_bytes_threshold;
        config_ptr->metadata_write_strategy = aux_ptr->metadata_write_strategy;
    } /* end if */
    else {
#endif /* H5_HAVE_PARALLEL */
        config_ptr->dirty_bytes_threshold = H5AC__DEFAULT_DIRTY_BYTES_THRESHOLD;
        config_ptr->metadata_write_strategy = H5AC__DEFAULT_METADATA_WRITE_STRATEGY;
#ifdef H5_HAVE_PARALLEL
    } /* end else */
}
#endif /* H5_HAVE_PARALLEL */

done:
    FUNC_LEAVE_NOAPI(ret_value)
} /* H5AC_get_cache_auto_resize_config() */


/*-------------------------------------------------------------------------
 * Function:    H5AC_get_cache_size
 *
 * Purpose:     Wrapper function for H5C_get_cache_size().
 *
 * Return:      SUCCEED on success, and FAIL on failure.
 *
 * Programmer:  John Mainzer
 *              3/11/05
 *
 *-------------------------------------------------------------------------
 */
herr_t
H5AC_get_cache_size(H5AC_t *cache_ptr, size_t *max_size_ptr, size_t *min_clean_size_ptr,
    size_t *cur_size_ptr, uint32_t *cur_num_entries_ptr)
{
    herr_t ret_value = SUCCEED;      /* Return value */

    FUNC_ENTER_NOAPI(FAIL)

    if(H5C_get_cache_size((H5C_t *)cache_ptr, max_size_ptr, min_clean_size_ptr,
            cur_size_ptr, cur_num_entries_ptr) < 0)
        HGOTO_ERROR(H5E_CACHE, H5E_SYSTEM, FAIL, "H5C_get_cache_size() failed")

done:
    FUNC_LEAVE_NOAPI(ret_value)
} /* H5AC_get_cache_size() */


/*-------------------------------------------------------------------------
 * Function:    H5AC_get_cache_flush_in_progess
 *
 * Purpose:     Wrapper function for H5C_get_cache_flush_in_progress().
 *
 * Return:      SUCCEED on success, and FAIL on failure.
 *
 * Programmer:  John Mainzer
 *              3/11/05
 *
 *-------------------------------------------------------------------------
 */
herr_t
H5AC_get_cache_flush_in_progress(H5AC_t *cache_ptr, hbool_t *flush_in_progress_ptr)
{
    herr_t ret_value = SUCCEED;      /* Return value */

    FUNC_ENTER_NOAPI(FAIL)

    if(H5C_get_cache_flush_in_progress((H5C_t *)cache_ptr, flush_in_progress_ptr) < 0)
        HGOTO_ERROR(H5E_CACHE, H5E_SYSTEM, FAIL, "H5C_get_cache_flush_in_progress() failed")

done:
    FUNC_LEAVE_NOAPI(ret_value)
} /* H5AC_get_cache_flush_in_progress() */


/*-------------------------------------------------------------------------
 * Function:    H5AC_get_cache_hit_rate
 *
 * Purpose:     Wrapper function for H5C_get_cache_hit_rate().
 *
 * Return:      SUCCEED on success, and FAIL on failure.
 *
 * Programmer:  John Mainzer
 *              3/10/05
 *
 *-------------------------------------------------------------------------
 */
herr_t
H5AC_get_cache_hit_rate(H5AC_t *cache_ptr, double *hit_rate_ptr)
{
    herr_t ret_value = SUCCEED;      /* Return value */

    FUNC_ENTER_NOAPI(FAIL)

    if(H5C_get_cache_hit_rate((H5C_t *)cache_ptr, hit_rate_ptr) < 0)
        HGOTO_ERROR(H5E_CACHE, H5E_SYSTEM, FAIL, "H5C_get_cache_hit_rate() failed")

done:
    FUNC_LEAVE_NOAPI(ret_value)
} /* H5AC_get_cache_hit_rate() */


/*-------------------------------------------------------------------------
 *
 * Function:    H5AC_reset_cache_hit_rate_stats()
 *
 * Purpose:     Wrapper function for H5C_reset_cache_hit_rate_stats().
 *
 * Return:      SUCCEED on success, and FAIL on failure.
 *
 * Programmer:  John Mainzer, 3/10/05
 *
 *-------------------------------------------------------------------------
 */
herr_t
H5AC_reset_cache_hit_rate_stats(H5AC_t * cache_ptr)
{
    herr_t      ret_value = SUCCEED;      /* Return value */

    FUNC_ENTER_NOAPI(FAIL)

    if(H5C_reset_cache_hit_rate_stats((H5C_t *)cache_ptr) < 0)
        HGOTO_ERROR(H5E_CACHE, H5E_SYSTEM, FAIL, "H5C_reset_cache_hit_rate_stats() failed")

done:
    FUNC_LEAVE_NOAPI(ret_value)
} /* H5AC_reset_cache_hit_rate_stats() */


/*-------------------------------------------------------------------------
 * Function:    H5AC_set_cache_auto_resize_config
 *
 * Purpose:     Wrapper function for H5C_set_cache_auto_resize_config().
 *
 * Return:      SUCCEED on success, and FAIL on failure.
 *
 * Programmer:  John Mainzer
 *              3/10/05
 *
 *-------------------------------------------------------------------------
 */
herr_t
H5AC_set_cache_auto_resize_config(H5AC_t *cache_ptr, H5AC_cache_config_t *config_ptr)
{
    H5C_auto_size_ctl_t internal_config;
    herr_t  ret_value = SUCCEED;        /* Return value */

    FUNC_ENTER_NOAPI(FAIL)

    /* Sanity checks */
    HDassert(cache_ptr);

    if(cache_ptr == NULL)
        HGOTO_ERROR(H5E_CACHE, H5E_SYSTEM, FAIL, "bad cache_ptr on entry")
#ifdef H5_HAVE_PARALLEL
{
    H5AC_aux_t *aux_ptr;

    aux_ptr = (H5AC_aux_t *)H5C_get_aux_ptr(cache_ptr);
    if((aux_ptr != NULL) && (aux_ptr->magic != H5AC__H5AC_AUX_T_MAGIC))
        HGOTO_ERROR(H5E_CACHE, H5E_SYSTEM, FAIL, "bad aux_ptr on entry")
}
#endif /* H5_HAVE_PARALLEL */

    /* Validate external configuration */
    if(H5AC_validate_config(config_ptr) != SUCCEED)
        HGOTO_ERROR(H5E_CACHE, H5E_BADVALUE, FAIL, "Bad cache configuration")

    /* If the cache config struct is being used to control logging, perform
     * the open/close operations. Note that this is the only place where the
     * struct-based control opens and closes the log files so we also have
     * to write start/stop messages.
     */
    /* close */
    if(config_ptr->close_trace_file)
        if(H5C_log_tear_down((H5C_t *)cache_ptr) < 0)
            HGOTO_ERROR(H5E_CACHE, H5E_LOGGING, FAIL, "mdc logging tear-down failed")

    /* open */
    if(config_ptr->open_trace_file) {
        /* Turn on metadata cache logging.
         * This will be trace output until we create a special API call. JSON
         * output is generated when logging is controlled by the H5P calls.
         */
        if(H5C_log_set_up((H5C_t *)cache_ptr, config_ptr->trace_file_name, H5C_LOG_STYLE_TRACE, TRUE) < 0)
            HGOTO_ERROR(H5E_CACHE, H5E_LOGGING, FAIL, "mdc logging setup failed")
    }

    /* Convert external configuration to internal representation */
    if(H5AC__ext_config_2_int_config(config_ptr, &internal_config) < 0)
        HGOTO_ERROR(H5E_CACHE, H5E_SYSTEM, FAIL, "H5AC__ext_config_2_int_config() failed")

    /* Set configuration */
    if(H5C_set_cache_auto_resize_config(cache_ptr, &internal_config) < 0)
        HGOTO_ERROR(H5E_CACHE, H5E_SYSTEM, FAIL, "H5C_set_cache_auto_resize_config() failed")
    if(H5C_set_evictions_enabled(cache_ptr, config_ptr->evictions_enabled) < 0)
        HGOTO_ERROR(H5E_CACHE, H5E_SYSTEM, FAIL, "H5C_set_evictions_enabled() failed")

#ifdef H5_HAVE_PARALLEL
{
    H5AC_aux_t *aux_ptr;

    /* Set parallel configuration values */
    /* (Which are only held in the H5AC layer -QAK) */
    if(NULL != (aux_ptr = (H5AC_aux_t *)H5C_get_aux_ptr(cache_ptr))) {
        aux_ptr->dirty_bytes_threshold = config_ptr->dirty_bytes_threshold;
        aux_ptr->metadata_write_strategy = config_ptr->metadata_write_strategy;
    } /* end if */
}
#endif /* H5_HAVE_PARALLEL */

done:
    /* If currently logging, generate a message */
    if(cache_ptr->log_info->logging)
        if(H5C_log_write_set_cache_config_msg(cache_ptr, config_ptr, ret_value) < 0)
            HDONE_ERROR(H5E_CACHE, H5E_LOGGING, FAIL, "unable to emit log message")

    FUNC_LEAVE_NOAPI(ret_value)
} /* H5AC_set_cache_auto_resize_config() */


/*-------------------------------------------------------------------------
 * Function:    H5AC_validate_config()
 *
 * Purpose:     Run a sanity check on the contents of the supplied
 *              instance of H5AC_cache_config_t.
 *
 *              Do nothing and return SUCCEED if no errors are detected,
 *              and flag an error and return FAIL otherwise.
 *
 *              At present, this function operates by packing the data
 *              from the instance of H5AC_cache_config_t into an instance
 *              of H5C_auto_size_ctl_t, and then calling
 *              H5C_validate_resize_config().  As H5AC_cache_config_t and
 *              H5C_auto_size_ctl_t diverge, we may have to change this.
 *
 * Return:      Non-negative on success/Negative on failure
 *
 * Programmer:  John Mainzer
 *              4/6/05
 *
 *-------------------------------------------------------------------------
 */
herr_t
H5AC_validate_config(H5AC_cache_config_t *config_ptr)
{
    H5C_auto_size_ctl_t internal_config;
    herr_t              ret_value = SUCCEED;    /* Return value */

    FUNC_ENTER_NOAPI(FAIL)

    /* Check args */
    if(config_ptr == NULL)
        HGOTO_ERROR(H5E_CACHE, H5E_BADVALUE, FAIL, "NULL config_ptr on entry")
    if(config_ptr->version != H5AC__CURR_CACHE_CONFIG_VERSION)
        HGOTO_ERROR(H5E_CACHE, H5E_BADVALUE, FAIL, "Unknown config version")

    /* don't bother to test trace_file_name unless open_trace_file is TRUE */
    if(config_ptr->open_trace_file) {
        size_t            name_len;

        /* Can't really test the trace_file_name field without trying to
         * open the file, so we will content ourselves with a couple of
         * sanity checks on the length of the file name.
         */
        name_len = HDstrlen(config_ptr->trace_file_name);
        if(name_len == 0)
            HGOTO_ERROR(H5E_CACHE, H5E_BADVALUE, FAIL, "config_ptr->trace_file_name is empty")
        else if(name_len > H5AC__MAX_TRACE_FILE_NAME_LEN)
            HGOTO_ERROR(H5E_CACHE, H5E_BADVALUE, FAIL, "config_ptr->trace_file_name too long")
    } /* end if */

    if((config_ptr->evictions_enabled == FALSE) &&
            ((config_ptr->incr_mode != H5C_incr__off) ||
                (config_ptr->flash_incr_mode != H5C_flash_incr__off) ||
                (config_ptr->decr_mode != H5C_decr__off)))
        HGOTO_ERROR(H5E_CACHE, H5E_BADVALUE, FAIL, "Can't disable evictions while auto-resize is enabled")

    if(config_ptr->dirty_bytes_threshold < H5AC__MIN_DIRTY_BYTES_THRESHOLD)
        HGOTO_ERROR(H5E_CACHE, H5E_BADVALUE, FAIL, "dirty_bytes_threshold too small")
    else if(config_ptr->dirty_bytes_threshold > H5AC__MAX_DIRTY_BYTES_THRESHOLD)
        HGOTO_ERROR(H5E_CACHE, H5E_BADVALUE, FAIL, "dirty_bytes_threshold too big")

    if((config_ptr->metadata_write_strategy != H5AC_METADATA_WRITE_STRATEGY__PROCESS_0_ONLY) &&
         (config_ptr->metadata_write_strategy != H5AC_METADATA_WRITE_STRATEGY__DISTRIBUTED))
        HGOTO_ERROR(H5E_CACHE, H5E_BADVALUE, FAIL, "config_ptr->metadata_write_strategy out of range")

    if(H5AC__ext_config_2_int_config(config_ptr, &internal_config) < 0)
        HGOTO_ERROR(H5E_CACHE, H5E_SYSTEM, FAIL, "H5AC__ext_config_2_int_config() failed")

    if(H5C_validate_resize_config(&internal_config, H5C_RESIZE_CFG__VALIDATE_ALL) < 0)
        HGOTO_ERROR(H5E_CACHE, H5E_BADVALUE, FAIL, "error(s) in new config")

done:
    FUNC_LEAVE_NOAPI(ret_value)
} /* H5AC_validate_config() */


/*-------------------------------------------------------------------------
 * Function:    H5AC_validate_cache_image_config()
 *
 * Purpose:     Run a sanity check on the contents of the supplied
 *              instance of H5AC_cache_image_config_t.
 *
 *              Do nothing and return SUCCEED if no errors are detected,
 *              and flag an error and return FAIL otherwise.
 *
 *              At present, this function operates by packing the data
 *              from the instance of H5AC_cache_image_config_t into an
 *              instance of H5C_cache_image_ctl_t, and then calling
 *              H5C_validate_cache_image_config().  If and when
 *              H5AC_cache_image_config_t and H5C_cache_image_ctl_t
 *              diverge, we may have to change this.
 *
 * Return:      Non-negative on success/Negative on failure
 *
 * Programmer:  John Mainzer
 *              6/25/15
 *
 *-------------------------------------------------------------------------
 */
herr_t
H5AC_validate_cache_image_config(H5AC_cache_image_config_t *config_ptr)
{
    H5C_cache_image_ctl_t internal_config = H5C__DEFAULT_CACHE_IMAGE_CTL;
    herr_t              ret_value = SUCCEED;    /* Return value */

    FUNC_ENTER_NOAPI(FAIL)

    /* Check args */
    if(config_ptr == NULL)
        HGOTO_ERROR(H5E_CACHE, H5E_BADVALUE, FAIL, "NULL config_ptr on entry")

    if(config_ptr->version != H5AC__CURR_CACHE_IMAGE_CONFIG_VERSION)
        HGOTO_ERROR(H5E_CACHE, H5E_BADVALUE, FAIL, "Unknown image config version")

    /* don't need to get the current H5C image config here since the
     * default values of fields not in the H5AC config will always be
     * valid.
     */
    internal_config.version            = config_ptr->version;
    internal_config.generate_image     = config_ptr->generate_image;
    internal_config.save_resize_status = config_ptr->save_resize_status;
    internal_config.entry_ageout       = config_ptr->entry_ageout;

    if(H5C_validate_cache_image_config(&internal_config) < 0)
        HGOTO_ERROR(H5E_CACHE, H5E_BADVALUE, FAIL, "error(s) in new cache image config")

done:
    FUNC_LEAVE_NOAPI(ret_value)
} /* H5AC_validate_cache_image_config() */


/*-------------------------------------------------------------------------
 *
 * Function:    H5AC__check_if_write_permitted
 *
 * Purpose:     Determine if a write is permitted under the current
 *              circumstances, and set *write_permitted_ptr accordingly.
 *              As a general rule it is, but when we are running in parallel
 *              mode with collective I/O, we must ensure that a read cannot
 *              cause a write.
 *
 *              In the event of failure, the value of *write_permitted_ptr
 *              is undefined.
 *
 * Return:      Non-negative on success/Negative on failure.
 *
 * Programmer:  John Mainzer, 5/15/04
 *
 *-------------------------------------------------------------------------
 */
static herr_t
H5AC__check_if_write_permitted(const H5F_t
#ifndef H5_HAVE_PARALLEL
H5_ATTR_UNUSED
#endif /* H5_HAVE_PARALLEL */
    *f, hbool_t *write_permitted_ptr)
{
#ifdef H5_HAVE_PARALLEL
    H5AC_aux_t *    aux_ptr = NULL;
#endif /* H5_HAVE_PARALLEL */
    hbool_t         write_permitted = TRUE;

    FUNC_ENTER_STATIC_NOERR

#ifdef H5_HAVE_PARALLEL
    /* Sanity checks */
    HDassert(f != NULL);
    HDassert(f->shared != NULL);
    HDassert(f->shared->cache != NULL);
    aux_ptr = (H5AC_aux_t *)H5C_get_aux_ptr(f->shared->cache);
    if(aux_ptr != NULL) {
        HDassert(aux_ptr->magic == H5AC__H5AC_AUX_T_MAGIC);

        if((aux_ptr->mpi_rank == 0) || (aux_ptr->metadata_write_strategy == H5AC_METADATA_WRITE_STRATEGY__DISTRIBUTED))
            write_permitted = aux_ptr->write_permitted;
        else
            write_permitted = FALSE;
    } /* end if */
#endif /* H5_HAVE_PARALLEL */

    *write_permitted_ptr = write_permitted;

    FUNC_LEAVE_NOAPI(SUCCEED)
} /* H5AC__check_if_write_permitted() */


/*-------------------------------------------------------------------------
 * Function:    H5AC__ext_config_2_int_config()
 *
 * Purpose:     Utility function to translate an instance of
 *              H5AC_cache_config_t to an instance of H5C_auto_size_ctl_t.
 *
 *              Places translation in *int_conf_ptr and returns SUCCEED
 *              if successful.  Returns FAIL on failure.
 *
 *              Does only minimal sanity checking.
 *
 * Return:      Non-negative on success/Negative on failure
 *
 * Programmer:  John Mainzer
 *              1/26/06
 *
 *-------------------------------------------------------------------------
 */
static herr_t
H5AC__ext_config_2_int_config(H5AC_cache_config_t *ext_conf_ptr,
    H5C_auto_size_ctl_t *int_conf_ptr)
{
    herr_t               ret_value = SUCCEED;    /* Return value */

    FUNC_ENTER_STATIC

    if((ext_conf_ptr == NULL) || (ext_conf_ptr->version != H5AC__CURR_CACHE_CONFIG_VERSION) ||
            (int_conf_ptr == NULL))
        HGOTO_ERROR(H5E_CACHE, H5E_SYSTEM, FAIL, "Bad ext_conf_ptr or inf_conf_ptr on entry")

    int_conf_ptr->version                = H5C__CURR_AUTO_SIZE_CTL_VER;
    if(ext_conf_ptr->rpt_fcn_enabled)
        int_conf_ptr->rpt_fcn            = H5C_def_auto_resize_rpt_fcn;
    else
        int_conf_ptr->rpt_fcn            = NULL;

    int_conf_ptr->set_initial_size       = ext_conf_ptr->set_initial_size;
    int_conf_ptr->initial_size           = ext_conf_ptr->initial_size;
    int_conf_ptr->min_clean_fraction     = ext_conf_ptr->min_clean_fraction;
    int_conf_ptr->max_size               = ext_conf_ptr->max_size;
    int_conf_ptr->min_size               = ext_conf_ptr->min_size;
    int_conf_ptr->epoch_length           = (int64_t)(ext_conf_ptr->epoch_length);

    int_conf_ptr->incr_mode              = ext_conf_ptr->incr_mode;
    int_conf_ptr->lower_hr_threshold     = ext_conf_ptr->lower_hr_threshold;
    int_conf_ptr->increment              = ext_conf_ptr->increment;
    int_conf_ptr->apply_max_increment    = ext_conf_ptr->apply_max_increment;
    int_conf_ptr->max_increment          = ext_conf_ptr->max_increment;
    int_conf_ptr->flash_incr_mode        = ext_conf_ptr->flash_incr_mode;
    int_conf_ptr->flash_multiple         = ext_conf_ptr->flash_multiple;
    int_conf_ptr->flash_threshold        = ext_conf_ptr->flash_threshold;

    int_conf_ptr->decr_mode              = ext_conf_ptr->decr_mode;
    int_conf_ptr->upper_hr_threshold     = ext_conf_ptr->upper_hr_threshold;
    int_conf_ptr->decrement              = ext_conf_ptr->decrement;
    int_conf_ptr->apply_max_decrement    = ext_conf_ptr->apply_max_decrement;
    int_conf_ptr->max_decrement          = ext_conf_ptr->max_decrement;
    int_conf_ptr->epochs_before_eviction = (int32_t)(ext_conf_ptr->epochs_before_eviction);
    int_conf_ptr->apply_empty_reserve    = ext_conf_ptr->apply_empty_reserve;
    int_conf_ptr->empty_reserve          = ext_conf_ptr->empty_reserve;

done:
    FUNC_LEAVE_NOAPI(ret_value)
} /* H5AC__ext_config_2_int_config() */


/*------------------------------------------------------------------------------
 * Function:    H5AC_ignore_tags()
 *
 * Purpose:     Override all assertion frameworks and force application of
 *              global tag everywhere. This should really only be used in the
 *              tests that need to access functions without going through
 *              API paths.
 *
 * Return:      SUCCEED on success, FAIL otherwise.
 *
 * Programmer:  Mike McGreevy
 *              December 1, 2009
 *
 *------------------------------------------------------------------------------
 */
herr_t
H5AC_ignore_tags(const H5F_t *f)
{
    herr_t      ret_value = SUCCEED;

    FUNC_ENTER_NOAPI(FAIL)

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

    /* Set up a new metadata tag */
    if(H5C_ignore_tags(f->shared->cache) < 0)
        HGOTO_ERROR(H5E_CACHE, H5E_CANTSET, FAIL, "H5C_ignore_tags() failed")

done:
    FUNC_LEAVE_NOAPI(ret_value)
} /* H5AC_ignore_tags() */


/*------------------------------------------------------------------------------
 * Function:    H5AC_tag()
 *
 * Purpose:     Sets the metadata tag property in the provided property list.
 *
 * Return:      void
 *
 * Programmer:  Mike McGreevy
 *              December 1, 2009
 *
 *------------------------------------------------------------------------------
 */
void
H5AC_tag(haddr_t metadata_tag, haddr_t *prev_tag)
{
    FUNC_ENTER_NOAPI_NOINIT_NOERR

    /* Get the current tag value and return that (if prev_tag is NOT null) */
    if(prev_tag)
        *prev_tag = H5CX_get_tag();

    /* Set the provided tag */
    H5CX_set_tag(metadata_tag);

    FUNC_LEAVE_NOAPI_VOID
} /* H5AC_tag */


/*------------------------------------------------------------------------------
 * Function:    H5AC_retag_copied_metadata()
 *
 * Purpose:     Searches through cache index for all entries with the
 *              H5AC__COPIED_TAG, indicating that it was created as a
 *              result of an object copy, and applies the provided tag.
 *
 * Return:      SUCCEED on success, FAIL otherwise.
 *
 * Programmer:  Mike McGreevy
 *              March 17, 2010
 *
 *------------------------------------------------------------------------------
 */
herr_t
H5AC_retag_copied_metadata(const H5F_t *f, haddr_t metadata_tag)
{
    herr_t ret_value = SUCCEED;         /* Return value */

    FUNC_ENTER_NOAPI(FAIL)

    /* Sanity checks */
    HDassert(f);
    HDassert(f->shared);

    /* Call cache-level function to re-tag entries with the COPIED tag */
    if(H5C_retag_entries(f->shared->cache, H5AC__COPIED_TAG, metadata_tag) < 0)
        HGOTO_ERROR(H5E_CACHE, H5E_CANTSET, FAIL, "Can't retag metadata")

done:
    FUNC_LEAVE_NOAPI(ret_value)
} /* H5AC_retag_copied_metadata() */


/*------------------------------------------------------------------------------
 * Function:    H5AC_flush_tagged_metadata()
 *
 * Purpose:     Wrapper for cache level function which flushes all metadata
 *              that contains the specific tag.
 *
 * Return:      SUCCEED on success, FAIL otherwise.
 *
 * Programmer:  Mike McGreevy
 *              May 19, 2010
 *
 *------------------------------------------------------------------------------
 */
herr_t
H5AC_flush_tagged_metadata(H5F_t *f, haddr_t metadata_tag)
{
    /* Variable Declarations */
    herr_t ret_value = SUCCEED;

    /* Function Enter Macro */
    FUNC_ENTER_NOAPI(FAIL)

    /* Assertions */
    HDassert(f);
    HDassert(f->shared);

    /* Call cache level function to flush metadata entries with specified tag */
    if(H5C_flush_tagged_entries(f, metadata_tag) < 0)
        HGOTO_ERROR(H5E_CACHE, H5E_CANTFLUSH, FAIL, "Cannot flush metadata")

done:
    FUNC_LEAVE_NOAPI(ret_value)
} /* H5AC_flush_tagged_metadata */


/*------------------------------------------------------------------------------
 * Function:    H5AC_evict_tagged_metadata()
 *
 * Purpose:     Wrapper for cache level function which flushes all metadata
 *              that contains the specific tag.
 *
 * Return:      SUCCEED on success, FAIL otherwise.
 *
 * Programmer:  Mike McGreevy
 *              May 19, 2010
 *
 *------------------------------------------------------------------------------
 */
herr_t
H5AC_evict_tagged_metadata(H5F_t *f, haddr_t metadata_tag, hbool_t match_global)
{
    /* Variable Declarations */
    herr_t ret_value = SUCCEED;

    /* Function Enter Macro */
    FUNC_ENTER_NOAPI(FAIL)

    /* Assertions */
    HDassert(f);
    HDassert(f->shared);

    /* Call cache level function to evict metadata entries with specified tag */
    if(H5C_evict_tagged_entries(f, metadata_tag, match_global) < 0)
        HGOTO_ERROR(H5E_CACHE, H5E_CANTFLUSH, FAIL, "Cannot evict metadata")

done:
    FUNC_LEAVE_NOAPI(ret_value)
} /* H5AC_evict_tagged_metadata() */


/*------------------------------------------------------------------------------
 * Function:    H5AC_expunge_tag_type_metadata()
 *
 * Purpose:     Wrapper for cache level function which expunge entries with
 *              a specific tag and type id.
 *
 * Return:      SUCCEED on success, FAIL otherwise.
 *
 * Programmer:  Vailin Choi; May 2016
 *
 *------------------------------------------------------------------------------
 */
herr_t
H5AC_expunge_tag_type_metadata(H5F_t *f, haddr_t tag, int type_id, unsigned flags)
{
    /* Variable Declarations */
    herr_t ret_value = SUCCEED;

    /* Function Enter Macro */
    FUNC_ENTER_NOAPI(FAIL)

    /* Assertions */
    HDassert(f);
    HDassert(f->shared);

    /* Call cache level function to expunge entries with specified tag and type id */
    if(H5C_expunge_tag_type_metadata(f, tag, type_id, flags) < 0)
        HGOTO_ERROR(H5E_CACHE, H5E_CANTFLUSH, FAIL, "Cannot expunge tagged type entries")

done:
    FUNC_LEAVE_NOAPI(ret_value)
} /* H5AC_expunge_tag_type_metadata*/


/*------------------------------------------------------------------------------
 * Function:    H5AC_get_tag()
 *
 * Purpose:     Get the tag for a metadata cache entry.
 *
 * Return:      SUCCEED/FAIL
 *
 * Programmer:  Dana Robinson
 *              Fall 2016
 *
 *------------------------------------------------------------------------------
 */
herr_t
H5AC_get_tag(const void *thing, haddr_t *tag)
{
    /* Variable Declarations */
    herr_t ret_value = SUCCEED;

    /* Function Enter Macro */
    FUNC_ENTER_NOAPI(FAIL)

    /* Assertions */
    HDassert(thing);
    HDassert(tag);

    /* Call cache level function to get the tag */
    if(H5C_get_tag(thing, tag) < 0)
        HGOTO_ERROR(H5E_CACHE, H5E_CANTTAG, FAIL, "Cannot get tag for metadata cache entry")

done:
    FUNC_LEAVE_NOAPI(ret_value)
} /* end H5AC_get_tag() */


/*-------------------------------------------------------------------------
 * Function:    H5AC_cork
 *
 * Purpose:     To cork/uncork/get cork status for an object
 *
 * Return:      Non-negative on success/Negative on failure
 *
 * Programmer:  Vailin Choi; Jan 2014
 *
 *-------------------------------------------------------------------------
 */
herr_t
H5AC_cork(H5F_t *f, haddr_t obj_addr, unsigned action, hbool_t *corked)
{
    herr_t ret_value = SUCCEED;      /* Return value */

    FUNC_ENTER_NOAPI(FAIL)

    /* Sanity check */
    HDassert(f);
    HDassert(f->shared);
    HDassert(f->shared->cache);
    HDassert(H5F_addr_defined(obj_addr));
    HDassert(action == H5AC__SET_CORK || action == H5AC__UNCORK || action == H5AC__GET_CORKED);

    /*  Skip the search on "tag_list" when there are no "corked" objects.
     *  This is done to mitigate the slow down when closing objects.
     *  Re-visit this optimization when we optimize tag info management
     *  in the future.
     */
    if(action == H5AC__GET_CORKED) {
        HDassert(corked);
        if(H5C_get_num_objs_corked(f->shared->cache) == 0) {
            *corked = FALSE;
            HGOTO_DONE(SUCCEED)
        }
    }

    if(H5C_cork(f->shared->cache, obj_addr, action, corked) < 0)
        HGOTO_ERROR(H5E_CACHE, H5E_SYSTEM, FAIL, "Cannot perform the cork action")

done:
    FUNC_LEAVE_NOAPI(ret_value)
} /* H5AC_cork() */

#if H5AC_DO_TAGGING_SANITY_CHECKS

/*-------------------------------------------------------------------------
 *
 * Function:    H5AC__verify_tag
 *
 * Purpose:     Performs sanity checking on an entry type and tag value
 *              stored in a supplied dxpl_id.
 *
 * Return:      SUCCEED or FAIL.
 *
 * Programmer:  Mike McGreevy
 *              October 20, 2010
 *
 *-------------------------------------------------------------------------
 */
static herr_t
H5AC__verify_tag(const H5AC_class_t *type)
{
    haddr_t tag;                        /* Entry tag to validate */
    herr_t ret_value = SUCCEED;         /* Return value */

    FUNC_ENTER_STATIC

    /* Get the current tag */
    tag = H5CX_get_tag();

    /* Verify legal tag value */
    if(H5C_verify_tag(type->id, tag) < 0)
        HGOTO_ERROR(H5E_CACHE, H5E_CANTGET, FAIL, "tag verification failed")

done:
    FUNC_LEAVE_NOAPI(ret_value)
} /* H5AC__verify_tag */
#endif /* H5AC_DO_TAGGING_SANITY_CHECKS */


/*-------------------------------------------------------------------------
 * Function:    H5AC_get_entry_ring
 *
 * Purpose:     Given a file address, retrieve the ring for an entry at that
 *              address.
 *
 *              On error, the value of *ring is not modified.
 *
 * Return:      Non-negative on success/Negative on failure
 *
 * Programmer:  Quincey Koziol
 *              9/8/15
 *
 *-------------------------------------------------------------------------
 */
herr_t
H5AC_get_entry_ring(const H5F_t *f, haddr_t addr, H5AC_ring_t *ring)
{
    herr_t      ret_value = SUCCEED;      /* Return value */

    FUNC_ENTER_NOAPI(FAIL)

    /* Sanity check */
    HDassert(f);
    HDassert(H5F_addr_defined(addr));
    HDassert(ring);

    /* Retrieve the ring value for the entry at address */
    if(H5C_get_entry_ring(f, addr, ring) < 0)
        HGOTO_ERROR(H5E_CACHE, H5E_CANTGET, FAIL, "Can't retrieve ring for entry")

done:
    FUNC_LEAVE_NOAPI(ret_value)
} /* H5AC_get_entry_ring() */


/*-------------------------------------------------------------------------
 * Function:    H5AC_set_ring
 *
 * Purpose:     Routine to set the ring on a DXPL (for passing through
 *              to the metadata cache).
 *
 * Return:      void
 *
 * Programmer:  Quincey Koziol
 *              Tuesday, September 8, 2015
 *
 *-------------------------------------------------------------------------
 */
void
H5AC_set_ring(H5AC_ring_t ring, H5AC_ring_t *orig_ring)
{
    FUNC_ENTER_NOAPI_NOINIT_NOERR

    /* Note: orig_ring can be NULL so don't check it with HDassert() */

    /* Get the current ring value and return that (if orig_ring is NOT null) */
    if(orig_ring)
        *orig_ring = H5CX_get_ring();

    /* Set the provided ring */
    H5CX_set_ring(ring);

    FUNC_LEAVE_NOAPI_VOID
} /* end H5AC_set_ring() */


/*-------------------------------------------------------------------------
 * Function:    H5AC_unsettle_entry_ring()
 *
 * Purpose:     Advise the metadata cache that the specified entry's metadata
 *              cache manager ring is no longer settled (if it was on entry).
 *
 *              If the target metadata cache manager ring is already
 *              unsettled, do nothing, and return SUCCEED.
 *
 *              If the target metadata cache manager ring is settled, and
 *              we are not in the process of a file shutdown, mark
 *              the ring as unsettled, and return SUCCEED.
 *
 *              If the target metadata cache  manager is settled, and we
 *              are in the process of a file shutdown, post an error
 *              message, and return FAIL.
 *
 *              Note that this function simply passes the call on to
 *              the metadata cache proper, and returns the result.
 *
 * Return:      Success:    Non-negative
 *              Failure:    Negative
 *
 * Programmer:  Quincey Koziol
 *              September 17, 2016
 *
 *-------------------------------------------------------------------------
 */
herr_t
H5AC_unsettle_entry_ring(void *_entry)
{
    H5AC_info_t *entry = (H5AC_info_t *)_entry; /* Entry to remove */
    herr_t ret_value = SUCCEED;         /* Return value */

    FUNC_ENTER_NOAPI(FAIL)

    /* Sanity checks */
    HDassert(entry);

    /* Unsettle the entry's ring */
    if(H5C_unsettle_entry_ring(entry) < 0)
        HGOTO_ERROR(H5E_CACHE, H5E_CANTREMOVE, FAIL, "can't remove entry")

done:
    FUNC_LEAVE_NOAPI(ret_value)
} /* H5AC_unsettle_entry_ring() */


/*-------------------------------------------------------------------------
 * Function:    H5AC_unsettle_ring()
 *
 * Purpose:     Advise the metadata cache that the specified free space
 *              manager ring is no longer settled (if it was on entry).
 *
 *              If the target free space manager ring is already
 *              unsettled, do nothing, and return SUCCEED.
 *
 *              If the target free space manager ring is settled, and
 *              we are not in the process of a file shutdown, mark
 *              the ring as unsettled, and return SUCCEED.
 *
 *              If the target free space manager is settled, and we
 *              are in the process of a file shutdown, post an error
 *              message, and return FAIL.
 *
 *              Note that this function simply passes the call on to
 *              the metadata cache proper, and returns the result.
 *
 * Return:      Non-negative on success/Negative on failure
 *
 * Programmer:  John Mainzer
 *              10/15/16
 *
 *-------------------------------------------------------------------------
 */
herr_t
H5AC_unsettle_ring(H5F_t * f, H5C_ring_t ring)
{
    herr_t              ret_value = SUCCEED;    /* Return value */

    FUNC_ENTER_NOAPI(FAIL)

    if(FAIL == (ret_value = H5C_unsettle_ring(f, ring)))
        HGOTO_ERROR(H5E_CACHE, H5E_SYSTEM, FAIL, "H5C_unsettle_ring() failed")

done:
    FUNC_LEAVE_NOAPI(ret_value)
} /* H5AC_unsettle_ring() */


/*-------------------------------------------------------------------------
 * Function:    H5AC_remove_entry()
 *
 * Purpose:     Remove an entry from the cache.  Must be not protected, pinned,
 *              dirty, involved in flush dependencies, etc.
 *
 * Return:      Non-negative on success/Negative on failure
 *
 * Programmer:  Quincey Koziol
 *              September 17, 2016
 *
 *-------------------------------------------------------------------------
 */
herr_t
H5AC_remove_entry(void *_entry)
{
    H5AC_info_t *entry = (H5AC_info_t *)_entry; /* Entry to remove */
    H5C_t *cache = NULL;                /* Pointer to the entry's associated metadata cache */
    herr_t ret_value = SUCCEED;         /* Return value */

    FUNC_ENTER_NOAPI(FAIL)

    /* Sanity checks */
    HDassert(entry);
    cache = entry->cache_ptr;
    HDassert(cache);

    /* Remove the entry from the cache*/
    if(H5C_remove_entry(entry) < 0)
        HGOTO_ERROR(H5E_CACHE, H5E_CANTREMOVE, FAIL, "can't remove entry")

done:
    /* If currently logging, generate a message */
    if(cache != NULL && cache->log_info != NULL)
        if(cache->log_info->logging)
            if(H5C_log_write_remove_entry_msg(cache, entry, ret_value) < 0)
                HDONE_ERROR(H5E_CACHE, H5E_LOGGING, FAIL, "unable to emit log message")

    FUNC_LEAVE_NOAPI(ret_value)
} /* H5AC_remove_entry() */


/*-------------------------------------------------------------------------
 * Function:    H5AC_get_mdc_image_info
 *
 * Purpose:     Wrapper function for H5C_get_mdc_image_info().
 *
 * Return:      SUCCEED on success, and FAIL on failure.
 *
 * Programmer:  Vailin Choi; March 2017
 *
 *-------------------------------------------------------------------------
 */
herr_t
H5AC_get_mdc_image_info(H5AC_t *cache_ptr, haddr_t *image_addr, hsize_t *image_len)
{
    herr_t ret_value = SUCCEED;      /* Return value */

    FUNC_ENTER_NOAPI(FAIL)

    if(H5C_get_mdc_image_info((H5C_t *)cache_ptr, image_addr, image_len) < 0)
        HGOTO_ERROR(H5E_CACHE, H5E_CANTGET, FAIL, "can't retrieve cache image info")

done:
    FUNC_LEAVE_NOAPI(ret_value)
} /* H5AC_get_mdc_image_info() */