summaryrefslogtreecommitdiffstats
path: root/Python/pythonrun.c
Commit message (Expand)AuthorAgeFilesLines
* Issue #3137: Don't ignore errors at startup, especially a keyboard interruptVictor Stinner2010-03-101-16/+16
* Issue #1722344: threading._shutdown() is now called in Py_Finalize(), whichAntoine Pitrou2009-10-201-0/+30
* - Issue #3845: In PyRun_SimpleFileExFlags avoid invalid memory access withMatthias Klose2009-04-041-2/+3
* Issue 5619: Pass MS CRT debug flags into subprocessesJesse Noller2009-03-311-0/+2
* Issue #4258: Use 30-bit digits for Python longs, on 64-bit platforms.Mark Dickinson2009-03-201-0/+3
* fix compilation on non-Windows platformsBenjamin Peterson2009-01-021-0/+2
* Issue #4075: Use OutputDebugStringW in Py_FatalError.Martin v. Löwis2009-01-021-3/+17
* #3996: On Windows, PyOS_CheckStack is supposed to protect the interpreter fromAmaury Forgeot d'Arc2008-11-221-1/+1
* make sure the parser flags and passed onto the compilerBenjamin Peterson2008-10-311-6/+12
* Fix:Neal Norwitz2008-08-241-2/+2
* #3378: in case of no memory, don't leak even more memory. :)Georg Brandl2008-07-191-6/+7
* Fix tabs.Georg Brandl2008-07-051-12/+12
* This reverts r63675 based on the discussion in this thread:Gregory P. Smith2008-06-091-14/+14
* Typo: encoding -> codeset.Martin v. Löwis2008-06-011-1/+1
* Move sys_stream and sys_isatty out of the have-langinfo block.Martin v. Löwis2008-06-011-1/+1
* New environment variable PYTHONIOENCODING.Martin v. Löwis2008-06-011-29/+74
* Renamed PyString to PyBytesChristian Heimes2008-05-261-14/+14
* First step of the C API rename:Christian Heimes2008-05-261-2/+2
* #2816: clarify error messages for EOF while scanning strings.Georg Brandl2008-05-111-2/+2
* Implemented PEP 370Christian Heimes2008-05-061-0/+1
* Re-implement the 'warnings' module in C. This allows for usage of theBrett Cannon2008-04-121-60/+15
* C89 compliance: Microsoft compilers want variable declarations at the topAmaury Forgeot d'Arc2008-03-261-4/+2
* Initialize PyCompilerFlags cf_flags with 0Christian Heimes2008-03-261-0/+2
* Patch #2477: Added from __future__ import unicode_literalsChristian Heimes2008-03-261-7/+23
* Merged revisions 61750,61752,61754,61756,61760,61763,61768,61772,61775,61805,...Christian Heimes2008-03-261-1/+26
* Backport of the print function, using a __future__ import.Eric Smith2008-03-181-4/+5
* Perform correct handling of stack overflow for windows: Catch the correct exc...Kristján Valur Jónsson2008-02-181-2/+8
* Deallocate content of the dict free list on interpreter shutdownChristian Heimes2008-02-081-0/+1
* Added clear cache methods to clear the internal type lookup cache for ref lea...Christian Heimes2008-01-271-0/+3
* Patch #602345 by Neal Norwitz and me: add -B option and PYTHONDONTWRITEBYTECO...Georg Brandl2008-01-071-0/+3
* Issue #1402: PyInterpreterState_Clear() may still invoke user codeAmaury Forgeot d'Arc2007-11-291-5/+5
* Make pythoncore compile cleanly with VisualStudio 2005. Used an explicit typ...Kristján Valur Jónsson2007-04-251-0/+1
* Bug #742342: make Python stop segfaulting on infinitely-recursive reload()s. ...Collin Winter2007-03-121-0/+4
* Bug #1678647: write a newline after printing an exception in anyGeorg Brandl2007-03-121-2/+2
* Patch #703779: unset __file__ in __main__ after running a file. ThisGeorg Brandl2007-03-071-3/+11
* Variant of patch #697613: don't exit the interpreter on a SystemExitGeorg Brandl2007-03-071-0/+6
* Bug #1674503: close the file opened by execfile() in an error condition.Georg Brandl2007-03-061-2/+2
* SF patch #1630975: Fix crash when replacing sys.stdout in sitecustomizeThomas Wouters2007-01-231-3/+6
* with and as are now keywords. There are some generated files I can't recreate.Neal Norwitz2006-09-061-0/+7
* Handle a few more error conditions.Neal Norwitz2006-08-211-0/+5
* PyModule_GetDict() can fail, produce fatal errors if this happens on startup.Neal Norwitz2006-08-121-0/+4
* Whoops, how did that get in there. :-) Revert all the parts of 51227 that we...Neal Norwitz2006-08-121-3/+0
* Check returned pointer is valid.Neal Norwitz2006-08-121-0/+3
* Fix more memory allocation issues found with failmalloc.Neal Norwitz2006-07-221-6/+17
* Handle more memory allocation failures without crashing.Neal Norwitz2006-07-211-4/+13
* Reported by Klocwork #151.Neal Norwitz2006-07-171-2/+13
* Patch #1495999: Part two of Windows CE changes.Martin v. Löwis2006-06-101-0/+2
* PyErr_Display(), PyErr_WriteUnraisable(): Coverity found a cut-and-pasteTim Peters2006-05-281-13/+15
* Conversion of exceptions over from faked-up classes to new-style C types.Richard Jones2006-05-271-4/+8
* Change those parts of the Python-api that were functions in 2.4, andThomas Heller2006-04-181-4/+96
generated by cgit v0.12 at 2025-11-04 00:30:42 (GMT)
id='n534' href='#n534'>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 
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
 * 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://www.hdfgroup.org/licenses.               *
 * If you do not have access to either file, you may request a copy from     *
 * help@hdfgroup.org.                                                        *
 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */

/*-------------------------------------------------------------------------
 *
 * Created:		H5EAcache.c
 *			Aug 26 2008
 *			Quincey Koziol
 *
 * Purpose:		Implement extensible array metadata cache methods.
 *
 *-------------------------------------------------------------------------
 */

/**********************/
/* Module Declaration */
/**********************/

#include "H5EAmodule.h" /* This source code file is part of the H5EA module */

/***********************/
/* Other Packages Used */
/***********************/

/***********/
/* Headers */
/***********/
#include "H5private.h"   /* Generic Functions			*/
#include "H5Eprivate.h"  /* Error handling		  	*/
#include "H5EApkg.h"     /* Extensible Arrays			*/
#include "H5MFprivate.h" /* File memory management		*/
#include "H5MMprivate.h" /* Memory management			*/
#include "H5VMprivate.h" /* Vectors and arrays 			*/
#include "H5WBprivate.h" /* Wrapped Buffers                      */

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

/* Fractal heap format version #'s */
#define H5EA_HDR_VERSION    0 /* Header */
#define H5EA_IBLOCK_VERSION 0 /* Index block */
#define H5EA_SBLOCK_VERSION 0 /* Super block */
#define H5EA_DBLOCK_VERSION 0 /* Data block */

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

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

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

/* Metadata cache (H5AC) callbacks */
static herr_t H5EA__cache_hdr_get_initial_load_size(void *udata, size_t *image_len);
static htri_t H5EA__cache_hdr_verify_chksum(const void *image_ptr, size_t len, void *udata_ptr);
static void * H5EA__cache_hdr_deserialize(const void *image, size_t len, void *udata, hbool_t *dirty);
static herr_t H5EA__cache_hdr_image_len(const void *thing, size_t *image_len);
static herr_t H5EA__cache_hdr_serialize(const H5F_t *f, void *image, size_t len, void *thing);
static herr_t H5EA__cache_hdr_notify(H5AC_notify_action_t action, void *thing);
static herr_t H5EA__cache_hdr_free_icr(void *thing);

static herr_t H5EA__cache_iblock_get_initial_load_size(void *udata, size_t *image_len);
static htri_t H5EA__cache_iblock_verify_chksum(const void *image_ptr, size_t len, void *udata_ptr);
static void * H5EA__cache_iblock_deserialize(const void *image, size_t len, void *udata, hbool_t *dirty);
static herr_t H5EA__cache_iblock_image_len(const void *thing, size_t *image_len);
static herr_t H5EA__cache_iblock_serialize(const H5F_t *f, void *image, size_t len, void *thing);
static herr_t H5EA__cache_iblock_notify(H5AC_notify_action_t action, void *thing);
static herr_t H5EA__cache_iblock_free_icr(void *thing);

static herr_t H5EA__cache_sblock_get_initial_load_size(void *udata, size_t *image_len);
static htri_t H5EA__cache_sblock_verify_chksum(const void *image_ptr, size_t len, void *udata_ptr);
static void * H5EA__cache_sblock_deserialize(const void *image, size_t len, void *udata, hbool_t *dirty);
static herr_t H5EA__cache_sblock_image_len(const void *thing, size_t *image_len);
static herr_t H5EA__cache_sblock_serialize(const H5F_t *f, void *image, size_t len, void *thing);
static herr_t H5EA__cache_sblock_notify(H5AC_notify_action_t action, void *thing);
static herr_t H5EA__cache_sblock_free_icr(void *thing);

static herr_t H5EA__cache_dblock_get_initial_load_size(void *udata, size_t *image_len);
static htri_t H5EA__cache_dblock_verify_chksum(const void *image_ptr, size_t len, void *udata_ptr);
static void * H5EA__cache_dblock_deserialize(const void *image, size_t len, void *udata, hbool_t *dirty);
static herr_t H5EA__cache_dblock_image_len(const void *thing, size_t *image_len);
static herr_t H5EA__cache_dblock_serialize(const H5F_t *f, void *image, size_t len, void *thing);
static herr_t H5EA__cache_dblock_notify(H5AC_notify_action_t action, void *thing);
static herr_t H5EA__cache_dblock_free_icr(void *thing);
static herr_t H5EA__cache_dblock_fsf_size(const void *thing, hsize_t *fsf_size);

static herr_t H5EA__cache_dblk_page_get_initial_load_size(void *udata, size_t *image_len);
static htri_t H5EA__cache_dblk_page_verify_chksum(const void *image_ptr, size_t len, void *udata_ptr);
static void * H5EA__cache_dblk_page_deserialize(const void *image, size_t len, void *udata, hbool_t *dirty);
static herr_t H5EA__cache_dblk_page_image_len(const void *thing, size_t *image_len);
static herr_t H5EA__cache_dblk_page_serialize(const H5F_t *f, void *image, size_t len, void *thing);
static herr_t H5EA__cache_dblk_page_notify(H5AC_notify_action_t action, void *thing);
static herr_t H5EA__cache_dblk_page_free_icr(void *thing);

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

/* H5EA header inherits cache-like properties from H5AC */
const H5AC_class_t H5AC_EARRAY_HDR[1] = {{
    H5AC_EARRAY_HDR_ID,                    /* Metadata client ID */
    "Extensible Array Header",             /* Metadata client name (for debugging) */
    H5FD_MEM_EARRAY_HDR,                   /* File space memory type for client */
    H5AC__CLASS_NO_FLAGS_SET,              /* Client class behavior flags */
    H5EA__cache_hdr_get_initial_load_size, /* 'get_initial_load_size' callback */
    NULL,                                  /* 'get_final_load_size' callback */
    H5EA__cache_hdr_verify_chksum,         /* 'verify_chksum' callback */
    H5EA__cache_hdr_deserialize,           /* 'deserialize' callback */
    H5EA__cache_hdr_image_len,             /* 'image_len' callback */
    NULL,                                  /* 'pre_serialize' callback */
    H5EA__cache_hdr_serialize,             /* 'serialize' callback */
    H5EA__cache_hdr_notify,                /* 'notify' callback */
    H5EA__cache_hdr_free_icr,              /* 'free_icr' callback */
    NULL,                                  /* 'fsf_size' callback */
    NULL,                                  /* VFD SWMR 'refresh' callback */
}};

/* H5EA index block inherits cache-like properties from H5AC */
const H5AC_class_t H5AC_EARRAY_IBLOCK[1] = {{
    H5AC_EARRAY_IBLOCK_ID,                    /* Metadata client ID */
    "Extensible Array Index Block",           /* Metadata client name (for debugging) */
    H5FD_MEM_EARRAY_IBLOCK,                   /* File space memory type for client */
    H5AC__CLASS_NO_FLAGS_SET,                 /* Client class behavior flags */
    H5EA__cache_iblock_get_initial_load_size, /* 'get_initial_load_size' callback */
    NULL,                                     /* 'get_final_load_size' callback */
    H5EA__cache_iblock_verify_chksum,         /* 'verify_chksum' callback */
    H5EA__cache_iblock_deserialize,           /* 'deserialize' callback */
    H5EA__cache_iblock_image_len,             /* 'image_len' callback */
    NULL,                                     /* 'pre_serialize' callback */
    H5EA__cache_iblock_serialize,             /* 'serialize' callback */
    H5EA__cache_iblock_notify,                /* 'notify' callback */
    H5EA__cache_iblock_free_icr,              /* 'free_icr' callback */
    NULL,                                     /* 'fsf_size' callback */
    NULL,                                     /* VFD SWMR 'refresh' callback */
}};

/* H5EA super block inherits cache-like properties from H5AC */
const H5AC_class_t H5AC_EARRAY_SBLOCK[1] = {{
    H5AC_EARRAY_SBLOCK_ID,                    /* Metadata client ID */
    "Extensible Array Super Block",           /* Metadata client name (for debugging) */
    H5FD_MEM_EARRAY_SBLOCK,                   /* File space memory type for client */
    H5AC__CLASS_NO_FLAGS_SET,                 /* Client class behavior flags */
    H5EA__cache_sblock_get_initial_load_size, /* 'get_initial_load_size' callback */
    NULL,                                     /* 'get_final_load_size' callback */
    H5EA__cache_sblock_verify_chksum,         /* 'verify_chksum' callback */
    H5EA__cache_sblock_deserialize,           /* 'deserialize' callback */
    H5EA__cache_sblock_image_len,             /* 'image_len' callback */
    NULL,                                     /* 'pre_serialize' callback */
    H5EA__cache_sblock_serialize,             /* 'serialize' callback */
    H5EA__cache_sblock_notify,                /* 'notify' callback */
    H5EA__cache_sblock_free_icr,              /* 'free_icr' callback */
    NULL,                                     /* 'fsf_size' callback */
    NULL,                                     /* VFD SWMR 'refresh' callback */
}};

/* H5EA data block inherits cache-like properties from H5AC */
const H5AC_class_t H5AC_EARRAY_DBLOCK[1] = {{
    H5AC_EARRAY_DBLOCK_ID,                    /* Metadata client ID */
    "Extensible Array Data Block",            /* Metadata client name (for debugging) */
    H5FD_MEM_EARRAY_DBLOCK,                   /* File space memory type for client */
    H5AC__CLASS_NO_FLAGS_SET,                 /* Client class behavior flags */
    H5EA__cache_dblock_get_initial_load_size, /* 'get_initial_load_size' callback */
    NULL,                                     /* 'get_final_load_size' callback */
    H5EA__cache_dblock_verify_chksum,         /* 'verify_chksum' callback */
    H5EA__cache_dblock_deserialize,           /* 'deserialize' callback */
    H5EA__cache_dblock_image_len,             /* 'image_len' callback */
    NULL,                                     /* 'pre_serialize' callback */
    H5EA__cache_dblock_serialize,             /* 'serialize' callback */
    H5EA__cache_dblock_notify,                /* 'notify' callback */
    H5EA__cache_dblock_free_icr,              /* 'free_icr' callback */
    H5EA__cache_dblock_fsf_size,              /* 'fsf_size' callback */
    NULL,                                     /* VFD SWMR 'refresh' callback */
}};

/* H5EA data block page inherits cache-like properties from H5AC */
const H5AC_class_t H5AC_EARRAY_DBLK_PAGE[1] = {{
    H5AC_EARRAY_DBLK_PAGE_ID,                    /* Metadata client ID */
    "Extensible Array Data Block Page",          /* Metadata client name (for debugging) */
    H5FD_MEM_EARRAY_DBLK_PAGE,                   /* File space memory type for client */
    H5AC__CLASS_NO_FLAGS_SET,                    /* Client class behavior flags */
    H5EA__cache_dblk_page_get_initial_load_size, /* 'get_initial_load_size' callback */
    NULL,                                        /* 'get_final_load_size' callback */
    H5EA__cache_dblk_page_verify_chksum,         /* 'verify_chksum' callback */
    H5EA__cache_dblk_page_deserialize,           /* 'deserialize' callback */
    H5EA__cache_dblk_page_image_len,             /* 'image_len' callback */
    NULL,                                        /* 'pre_serialize' callback */
    H5EA__cache_dblk_page_serialize,             /* 'serialize' callback */
    H5EA__cache_dblk_page_notify,                /* 'notify' callback */
    H5EA__cache_dblk_page_free_icr,              /* 'free_icr' callback */
    NULL,                                        /* 'fsf_size' callback */
    NULL,                                        /* VFD SWMR 'refresh' callback */
}};

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

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

/*-------------------------------------------------------------------------
 * Function:    H5EA__cache_hdr_get_initial_load_size
 *
 * Purpose:     Compute the size of the data structure on disk.
 *
 * Return:      Non-negative on success/Negative on failure
 *
 * Programmer:  Quincey Koziol
 *              July 16, 2013
 *
 *-------------------------------------------------------------------------
 */
static herr_t
H5EA__cache_hdr_get_initial_load_size(void *_udata, size_t *image_len)
{
    H5EA_hdr_cache_ud_t *udata = (H5EA_hdr_cache_ud_t *)_udata; /* User data for callback */

    FUNC_ENTER_PACKAGE_NOERR

    /* Check arguments */
    HDassert(udata);
    HDassert(udata->f);
    HDassert(image_len);

    /* Set the image length size */
    *image_len = (size_t)H5EA_HEADER_SIZE_FILE(udata->f);

    FUNC_LEAVE_NOAPI(SUCCEED)
} /* end H5EA__cache_hdr_get_initial_load_size() */

/*-------------------------------------------------------------------------
 * Function:	H5EA__cache_hdr_verify_chksum
 *
 * Purpose:     Verify the computed checksum of the data structure is the
 *              same as the stored chksum.
 *
 * Return:      Success:        TRUE/FALSE
 *              Failure:        Negative
 *
 * Programmer:	Vailin Choi; Aug 2015
 *
 *-------------------------------------------------------------------------
 */
static htri_t
H5EA__cache_hdr_verify_chksum(const void *_image, size_t len, void H5_ATTR_UNUSED *_udata)
{
    const uint8_t *image = (const uint8_t *)_image; /* Pointer into raw data buffer */
    uint32_t       stored_chksum;                   /* Stored metadata checksum value */
    uint32_t       computed_chksum;                 /* Computed metadata checksum value */
    htri_t         ret_value = TRUE;

    FUNC_ENTER_PACKAGE_NOERR

    /* Check arguments */
    HDassert(image);

    /* Get stored and computed checksums */
    H5F_get_checksums(image, len, &stored_chksum, &computed_chksum);

    if (stored_chksum != computed_chksum)
        ret_value = FALSE;

    FUNC_LEAVE_NOAPI(ret_value);
} /* end H5EA__cache_hdr_verify_chksum() */

/*-------------------------------------------------------------------------
 * Function:	H5EA__cache_hdr_deserialize
 *
 * Purpose:	Loads a data structure from the disk.
 *
 * Return:	Success:	Pointer to a new B-tree.
 *		Failure:	NULL
 *
 * Programmer:	Quincey Koziol
 *              July 16, 2013
 *
 *-------------------------------------------------------------------------
 */
static void *
H5EA__cache_hdr_deserialize(const void *_image, size_t len, void *_udata, hbool_t H5_ATTR_UNUSED *dirty)
{
    H5EA_cls_id_t        id;           /* ID of extensible array class, as found in file */
    H5EA_hdr_t *         hdr   = NULL; /* Extensible array info */
    H5EA_hdr_cache_ud_t *udata = (H5EA_hdr_cache_ud_t *)_udata;
    const uint8_t *      image = (const uint8_t *)_image; /* Pointer into raw data buffer */
    uint32_t             stored_chksum;                   /* Stored metadata checksum value */
    void *               ret_value = NULL;

    FUNC_ENTER_PACKAGE

    /* Check arguments */
    HDassert(image);
    HDassert(udata);
    HDassert(udata->f);
    HDassert(H5F_addr_defined(udata->addr));

    /* Allocate space for the extensible array data structure */
    if (NULL == (hdr = H5EA__hdr_alloc(udata->f)))
        HGOTO_ERROR(H5E_EARRAY, H5E_CANTALLOC, NULL,
                    "memory allocation failed for extensible array shared header")

    /* Set the extensible array header's address */
    hdr->addr = udata->addr;

    /* Magic number */
    if (HDmemcmp(image, H5EA_HDR_MAGIC, (size_t)H5_SIZEOF_MAGIC) != 0)
        HGOTO_ERROR(H5E_EARRAY, H5E_BADVALUE, NULL, "wrong extensible array header signature")
    image += H5_SIZEOF_MAGIC;

    /* Version */
    if (*image++ != H5EA_HDR_VERSION)
        HGOTO_ERROR(H5E_EARRAY, H5E_VERSION, NULL, "wrong extensible array header version")

    /* Extensible array class */
    id = (H5EA_cls_id_t)*image++;
    if (id >= H5EA_NUM_CLS_ID)
        HGOTO_ERROR(H5E_EARRAY, H5E_BADTYPE, NULL, "incorrect extensible array class")
    hdr->cparam.cls = H5EA_client_class_g[id];

    /* General array creation/configuration information */
    hdr->cparam.raw_elmt_size = *image++; /* Element size in file (in bytes) */
    hdr->cparam.max_nelmts_bits =
        *image++; /* Log2(Max. # of elements in array) - i.e. # of bits needed to store max. # of elements */
    hdr->cparam.idx_blk_elmts         = *image++; /* # of elements to store in index block */
    hdr->cparam.data_blk_min_elmts    = *image++; /* Min. # of elements per data block */
    hdr->cparam.sup_blk_min_data_ptrs = *image++; /* Min. # of data block pointers for a super block */
    hdr->cparam.max_dblk_page_nelmts_bits =
        *image++; /* Log2(Max. # of elements in data block page) - i.e. # of bits needed to store max. # of
                     elements in data block page */

    /* Array statistics */
    hdr->stats.computed.hdr_size = len;                                   /* Size of header in file */
    H5F_DECODE_LENGTH(udata->f, image, hdr->stats.stored.nsuper_blks);    /* Number of super blocks created */
    H5F_DECODE_LENGTH(udata->f, image, hdr->stats.stored.super_blk_size); /* Size of super blocks created */
    H5F_DECODE_LENGTH(udata->f, image, hdr->stats.stored.ndata_blks);     /* Number of data blocks created */
    H5F_DECODE_LENGTH(udata->f, image, hdr->stats.stored.data_blk_size);  /* Size of data blocks created */
    H5F_DECODE_LENGTH(udata->f, image, hdr->stats.stored.max_idx_set);    /* Max. index set (+1) */
    H5F_DECODE_LENGTH(udata->f, image, hdr->stats.stored.nelmts);         /* Number of elements 'realized' */

    /* Internal information */
    H5F_addr_decode(udata->f, &image, &hdr->idx_blk_addr); /* Address of index block */

    /* Index block statistics */
    if (H5F_addr_defined(hdr->idx_blk_addr)) {
        H5EA_iblock_t iblock; /* Fake index block for computing size */

        /* Set index block count for file */
        hdr->stats.computed.nindex_blks = 1;

        /* Set up fake index block for computing size on disk */
        iblock.hdr         = hdr;
        iblock.nsblks      = H5EA_SBLK_FIRST_IDX(hdr->cparam.sup_blk_min_data_ptrs);
        iblock.ndblk_addrs = 2 * ((size_t)hdr->cparam.sup_blk_min_data_ptrs - 1);
        iblock.nsblk_addrs = hdr->nsblks - iblock.nsblks;

        /* Compute size of index block in file */
        hdr->stats.computed.index_blk_size = H5EA_IBLOCK_SIZE(&iblock);
    } /* end if */
    else {
        hdr->stats.computed.nindex_blks    = 0; /* Number of index blocks in file */
        hdr->stats.computed.index_blk_size = 0; /* Size of index blocks in file */
    }                                           /* end else */

    /* Sanity check */
    /* (allow for checksum not decoded yet) */
    HDassert((size_t)(image - (const uint8_t *)_image) == (len - H5EA_SIZEOF_CHKSUM));

    /* checksum verification already done in verify_chksum cb */

    /* Metadata checksum */
    UINT32DECODE(image, stored_chksum);

    /* Sanity check */
    HDassert((size_t)(image - (const uint8_t *)_image) == len);

    /* Finish initializing extensible array header */
    if (H5EA__hdr_init(hdr, udata->ctx_udata) < 0)
        HGOTO_ERROR(H5E_EARRAY, H5E_CANTINIT, NULL, "initialization failed for extensible array header")
    HDassert(hdr->size == len);

    /* Set return value */
    ret_value = hdr;

done:
    /* Release resources */
    if (!ret_value)
        if (hdr && H5EA__hdr_dest(hdr) < 0)
            HDONE_ERROR(H5E_EARRAY, H5E_CANTFREE, NULL, "unable to destroy extensible array header")

    FUNC_LEAVE_NOAPI(ret_value)
} /* end H5EA__cache_hdr_deserialize() */

/*-------------------------------------------------------------------------
 * Function:    H5EA__cache_hdr_image_len
 *
 * Purpose:     Compute the size of the data structure on disk.
 *
 * Return:      Non-negative on success/Negative on failure
 *
 * Programmer:  Quincey Koziol
 *              July 16, 2013
 *
 *-------------------------------------------------------------------------
 */
static herr_t
H5EA__cache_hdr_image_len(const void *_thing, size_t *image_len)
{
    const H5EA_hdr_t *hdr = (const H5EA_hdr_t *)_thing; /* Pointer to the object */

    FUNC_ENTER_PACKAGE_NOERR

    /* Check arguments */
    HDassert(hdr);
    HDassert(image_len);

    /* Set the image length size */
    *image_len = hdr->size;

    FUNC_LEAVE_NOAPI(SUCCEED)
} /* end H5EA__cache_hdr_image_len() */

/*-------------------------------------------------------------------------
 * Function:	H5EA__cache_hdr_serialize
 *
 * Purpose:	Flushes a dirty object to disk.
 *
 * Return:	Non-negative on success/Negative on failure
 *
 * Programmer:	Quincey Koziol
 *              July 16, 2013
 *
 *-------------------------------------------------------------------------
 */
static herr_t
H5EA__cache_hdr_serialize(const H5F_t *f, void *_image, size_t H5_ATTR_UNUSED len, void *_thing)
{
    H5EA_hdr_t *hdr   = (H5EA_hdr_t *)_thing; /* Pointer to the extensible array header */
    uint8_t *   image = (uint8_t *)_image;    /* Pointer into raw data buffer */
    uint32_t    metadata_chksum;              /* Computed metadata checksum value */

    FUNC_ENTER_PACKAGE_NOERR

    /* check arguments */
    HDassert(f);
    HDassert(image);
    HDassert(hdr);

    /* Magic number */
    H5MM_memcpy(image, H5EA_HDR_MAGIC, (size_t)H5_SIZEOF_MAGIC);
    image += H5_SIZEOF_MAGIC;

    /* Version # */
    *image++ = H5EA_HDR_VERSION;

    /* Extensible array type */
    HDassert(hdr->cparam.cls->id <= 255);
    *image++ = (uint8_t)hdr->cparam.cls->id;

    /* General array creation/configuration information */
    *image++ = hdr->cparam.raw_elmt_size;      /* Element size in file (in bytes) */
    *image++ = hdr->cparam.max_nelmts_bits;    /* Log2(Max. # of elements in array) - i.e. # of bits needed to
                                                  store    max. # of elements */
    *image++ = hdr->cparam.idx_blk_elmts;      /* # of elements to store in index block */
    *image++ = hdr->cparam.data_blk_min_elmts; /* Min. # of elements per data block */
    *image++ = hdr->cparam.sup_blk_min_data_ptrs; /* Min. # of data block pointers for a super block */
    *image++ =
        hdr->cparam.max_dblk_page_nelmts_bits; /* Log2(Max. # of elements in data block page) - i.e. # of bits
                                                  needed to store max. # of elements in data block page */

    /* Array statistics */
    H5F_ENCODE_LENGTH(f, image, hdr->stats.stored.nsuper_blks);    /* Number of super blocks created */
    H5F_ENCODE_LENGTH(f, image, hdr->stats.stored.super_blk_size); /* Size of super blocks created */
    H5F_ENCODE_LENGTH(f, image, hdr->stats.stored.ndata_blks);     /* Number of data blocks created */
    H5F_ENCODE_LENGTH(f, image, hdr->stats.stored.data_blk_size);  /* Size of data blocks created */
    H5F_ENCODE_LENGTH(f, image, hdr->stats.stored.max_idx_set);    /* Max. index set (+1) */
    H5F_ENCODE_LENGTH(f, image, hdr->stats.stored.nelmts);         /* Number of elements 'realized' */

    /* Internal information */
    H5F_addr_encode(f, &image, hdr->idx_blk_addr); /* Address of index block */

    /* Compute metadata checksum */
    metadata_chksum = H5_checksum_metadata(_image, (size_t)(image - (uint8_t *)_image), 0);

    /* Metadata checksum */
    UINT32ENCODE(image, metadata_chksum);

    /* Sanity check */
    HDassert((size_t)(image - (uint8_t *)_image) == len);

    FUNC_LEAVE_NOAPI(SUCCEED)
} /* end H5EA__cache_hdr_serialize() */

/*-------------------------------------------------------------------------
 * Function:	H5EA__cache_hdr_notify
 *
 * Purpose:	Handle cache action notifications
 *
 * Return:	Non-negative on success/Negative on failure
 *
 * Programmer:	John Mainzer
 *              11/30/15
 *
 *-------------------------------------------------------------------------
 */
static herr_t
H5EA__cache_hdr_notify(H5AC_notify_action_t action, void *_thing)
{
    H5EA_hdr_t *hdr       = (H5EA_hdr_t *)_thing; /* Pointer to the object */
    herr_t      ret_value = SUCCEED;

    FUNC_ENTER_PACKAGE

    /* Sanity check */
    HDassert(hdr);

    /* Check if the file was opened with SWMR-write access */
    if (hdr->swmr_write) {
        /* Determine which action to take */
        switch (action) {
            case H5AC_NOTIFY_ACTION_AFTER_INSERT:
            case H5AC_NOTIFY_ACTION_AFTER_LOAD:
            case H5AC_NOTIFY_ACTION_AFTER_FLUSH:
            case H5AC_NOTIFY_ACTION_ENTRY_DIRTIED:
            case H5AC_NOTIFY_ACTION_ENTRY_CLEANED:
            case H5AC_NOTIFY_ACTION_CHILD_DIRTIED:
            case H5AC_NOTIFY_ACTION_CHILD_CLEANED:
            case H5AC_NOTIFY_ACTION_CHILD_UNSERIALIZED:
            case H5AC_NOTIFY_ACTION_CHILD_SERIALIZED:
                /* do nothing */
                break;

            case H5AC_NOTIFY_ACTION_BEFORE_EVICT:
                /* If hdr->parent != NULL, hdr->parent is used to destroy
                 * the flush dependency before the header is evicted.
                 */
                if (hdr->parent) {
                    /* Sanity check */
                    HDassert(hdr->top_proxy);

                    /* Destroy flush dependency on object header proxy */
                    if (H5AC_proxy_entry_remove_child((H5AC_proxy_entry_t *)hdr->parent,
                                                      (void *)hdr->top_proxy) < 0)
                        HGOTO_ERROR(H5E_EARRAY, H5E_CANTUNDEPEND, FAIL,
                                    "unable to destroy flush dependency between extensible array and proxy")
                    hdr->parent = NULL;
                } /* end if */

                /* Detach from 'top' proxy for extensible array */
                if (hdr->top_proxy) {
                    if (H5AC_proxy_entry_remove_child(hdr->top_proxy, hdr) < 0)
                        HGOTO_ERROR(H5E_EARRAY, H5E_CANTUNDEPEND, FAIL,
                                    "unable to destroy flush dependency between header and "
                                    "extensible array 'top' proxy")
                    /* Don't reset hdr->top_proxy here, it's destroyed when the header is freed -QAK */
                } /* end if */
                break;

            default:
#ifdef NDEBUG
                HGOTO_ERROR(H5E_EARRAY, H5E_BADVALUE, FAIL, "unknown action from metadata cache")
#else     /* NDEBUG */
                HDassert(0 && "Unknown action?!?");
#endif    /* NDEBUG */
        } /* end switch */
    }     /* end if */
    else
        HDassert(NULL == hdr->parent);

done:
    FUNC_LEAVE_NOAPI(ret_value)
} /* end H5EA__cache_hdr_notify() */

/*-------------------------------------------------------------------------
 * Function:	H5EA__cache_hdr_free_icr
 *
 * Purpose:	Destroy/release an "in core representation" of a data
 *              structure
 *
 * Return:	Non-negative on success/Negative on failure
 *
 * Programmer:	Quincey Koziol
 *              July 16, 2013
 *
 *-------------------------------------------------------------------------
 */
static herr_t
H5EA__cache_hdr_free_icr(void *thing)
{
    herr_t ret_value = SUCCEED;

    FUNC_ENTER_PACKAGE

    /* Check arguments */
    HDassert(thing);

    /* Release the extensible array header */
    if (H5EA__hdr_dest((H5EA_hdr_t *)thing) < 0)
        HGOTO_ERROR(H5E_EARRAY, H5E_CANTFREE, FAIL, "can't free extensible array header")

done:
    FUNC_LEAVE_NOAPI(ret_value)
} /* end H5EA__cache_hdr_free_icr() */

/*-------------------------------------------------------------------------
 * Function:    H5EA__cache_iblock_get_initial_load_size
 *
 * Purpose:     Compute the size of the data structure on disk.
 *
 * Return:      Non-negative on success/Negative on failure
 *
 * Programmer:  Quincey Koziol
 *              July 17, 2013
 *
 *-------------------------------------------------------------------------
 */
static herr_t
H5EA__cache_iblock_get_initial_load_size(void *_udata, size_t *image_len)
{
    H5EA_hdr_t *  hdr = (H5EA_hdr_t *)_udata; /* User data for callback */
    H5EA_iblock_t iblock;                     /* Fake index block for computing size */

    FUNC_ENTER_PACKAGE_NOERR

    /* Check arguments */
    HDassert(hdr);
    HDassert(image_len);

    /* Set up fake index block for computing size on disk */
    HDmemset(&iblock, 0, sizeof(iblock));
    iblock.hdr         = (H5EA_hdr_t *)hdr; /* Casting away 'const' OK - QAK */
    iblock.nsblks      = H5EA_SBLK_FIRST_IDX(hdr->cparam.sup_blk_min_data_ptrs);
    iblock.ndblk_addrs = 2 * ((size_t)hdr->cparam.sup_blk_min_data_ptrs - 1);
    iblock.nsblk_addrs = hdr->nsblks - iblock.nsblks;

    /* Set the image length size */
    *image_len = (size_t)H5EA_IBLOCK_SIZE(&iblock);

    FUNC_LEAVE_NOAPI(SUCCEED)
} /* end H5EA__cache_iblock_get_initial_load_size() */

/*-------------------------------------------------------------------------
 * Function:	H5EA__cache_iblock_verify_chksum
 *
 * Purpose:     Verify the computed checksum of the data structure is the
 *              same as the stored chksum.
 *
 * Return:      Success:        TRUE/FALSE
 *              Failure:        Negative
 *
 * Programmer:	Vailin Choi; Aug 2015
 *
 *-------------------------------------------------------------------------
 */
static htri_t
H5EA__cache_iblock_verify_chksum(const void *_image, size_t len, void H5_ATTR_UNUSED *_udata)
{
    const uint8_t *image = (const uint8_t *)_image; /* Pointer into raw data buffer */
    uint32_t       stored_chksum;                   /* Stored metadata checksum value */
    uint32_t       computed_chksum;                 /* Computed metadata checksum value */
    htri_t         ret_value = TRUE;

    FUNC_ENTER_PACKAGE_NOERR

    /* Check arguments */
    HDassert(image);

    /* Get stored and computed checksums */
    H5F_get_checksums(image, len, &stored_chksum, &computed_chksum);

    if (stored_chksum != computed_chksum)
        ret_value = FALSE;

    FUNC_LEAVE_NOAPI(ret_value)
} /* end H5EA__cache_iblock_verify_chksum() */

/*-------------------------------------------------------------------------
 * Function:	H5EA__cache_iblock_deserialize
 *
 * Purpose:	Loads a data structure from the disk.
 *
 * Return:	Success:	Pointer to a new B-tree.
 *		Failure:	NULL
 *
 * Programmer:	Quincey Koziol
 *              July 17, 2013
 *
 *-------------------------------------------------------------------------
 */
static void *
H5EA__cache_iblock_deserialize(const void *_image, size_t len, void *_udata, hbool_t H5_ATTR_UNUSED *dirty)
{
    H5EA_iblock_t *iblock = NULL;                    /* Index block info */
    H5EA_hdr_t *   hdr    = (H5EA_hdr_t *)_udata;    /* User data for callback */
    const uint8_t *image  = (const uint8_t *)_image; /* Pointer into raw data buffer */
    uint32_t       stored_chksum;                    /* Stored metadata checksum value */
    haddr_t        arr_addr;                         /* Address of array header in the file */
    size_t         u;                                /* Local index variable */
    void *         ret_value = NULL;

    FUNC_ENTER_PACKAGE

    /* Check arguments */
    HDassert(image);
    HDassert(hdr);

    /* Allocate the extensible array index block */
    if (NULL == (iblock = H5EA__iblock_alloc(hdr)))
        HGOTO_ERROR(H5E_EARRAY, H5E_CANTALLOC, NULL,
                    "memory allocation failed for extensible array index block")

    /* Set the extensible array index block's address */
    iblock->addr = hdr->idx_blk_addr;

    /* Magic number */
    if (HDmemcmp(image, H5EA_IBLOCK_MAGIC, (size_t)H5_SIZEOF_MAGIC) != 0)
        HGOTO_ERROR(H5E_EARRAY, H5E_BADVALUE, NULL, "wrong extensible array index block signature")
    image += H5_SIZEOF_MAGIC;

    /* Version */
    if (*image++ != H5EA_IBLOCK_VERSION)
        HGOTO_ERROR(H5E_EARRAY, H5E_VERSION, NULL, "wrong extensible array index block version")

    /* Extensible array type */
    if (*image++ != (uint8_t)hdr->cparam.cls->id)
        HGOTO_ERROR(H5E_EARRAY, H5E_BADTYPE, NULL, "incorrect extensible array class")

    /* Address of header for array that owns this block (just for file integrity checks) */
    H5F_addr_decode(hdr->f, &image, &arr_addr);
    if (H5F_addr_ne(arr_addr, hdr->addr))
        HGOTO_ERROR(H5E_EARRAY, H5E_BADVALUE, NULL, "wrong extensible array header address")

    /* Internal information */

    /* Decode elements in index block */
    if (hdr->cparam.idx_blk_elmts > 0) {
        /* Convert from raw elements on disk into native elements in memory */
        if ((hdr->cparam.cls->decode)(image, iblock->elmts, (size_t)hdr->cparam.idx_blk_elmts, hdr->cb_ctx) <
            0)
            HGOTO_ERROR(H5E_EARRAY, H5E_CANTDECODE, NULL, "can't decode extensible array index elements")
        image += (hdr->cparam.idx_blk_elmts * hdr->cparam.raw_elmt_size);
    } /* end if */

    /* Decode data block addresses in index block */
    if (iblock->ndblk_addrs > 0) {
        /* Decode addresses of data blocks in index block */
        for (u = 0; u < iblock->ndblk_addrs; u++)
            H5F_addr_decode(hdr->f, &image, &iblock->dblk_addrs[u]);
    } /* end if */

    /* Decode super block addresses in index block */
    if (iblock->nsblk_addrs > 0) {
        /* Decode addresses of super blocks in index block */
        for (u = 0; u < iblock->nsblk_addrs; u++)
            H5F_addr_decode(hdr->f, &image, &iblock->sblk_addrs[u]);
    } /* end if */

    /* Sanity check */
    /* (allow for checksum not decoded yet) */
    HDassert((size_t)(image - (const uint8_t *)_image) == (len - H5EA_SIZEOF_CHKSUM));

    /* Save the index block's size */
    iblock->size = len;

    /* checksum verification already done in verify_chksum cb */

    /* Metadata checksum */
    UINT32DECODE(image, stored_chksum);

    /* Sanity check */
    HDassert((size_t)(image - (const uint8_t *)_image) == iblock->size);

    /* Set return value */
    ret_value = iblock;

done:
    /* Release resources */
    if (!ret_value)
        if (iblock && H5EA__iblock_dest(iblock) < 0)
            HDONE_ERROR(H5E_EARRAY, H5E_CANTFREE, NULL, "unable to destroy extensible array index block")

    FUNC_LEAVE_NOAPI(ret_value)
} /* end H5EA__cache_iblock_deserialize() */

/*-------------------------------------------------------------------------
 * Function:    H5EA__cache_iblock_image_len
 *
 * Purpose:     Compute the size of the data structure on disk.
 *
 * Return:      Non-negative on success/Negative on failure
 *
 * Programmer:  Quincey Koziol
 *              July 17, 2013
 *
 *-------------------------------------------------------------------------
 */
static herr_t
H5EA__cache_iblock_image_len(const void *_thing, size_t *image_len)
{
    const H5EA_iblock_t *iblock = (const H5EA_iblock_t *)_thing; /* Pointer to the object */

    FUNC_ENTER_PACKAGE_NOERR

    /* Check arguments */
    HDassert(iblock);
    HDassert(image_len);

    /* Set the image length size */
    *image_len = iblock->size;

    FUNC_LEAVE_NOAPI(SUCCEED)
} /* end H5EA__cache_iblock_image_len() */

/*-------------------------------------------------------------------------
 * Function:	H5EA__cache_iblock_serialize
 *
 * Purpose:	Flushes a dirty object to disk.
 *
 * Return:	Non-negative on success/Negative on failure
 *
 * Programmer:	Quincey Koziol
 *              July 17, 2013
 *
 *-------------------------------------------------------------------------
 */
static herr_t
H5EA__cache_iblock_serialize(const H5F_t *f, void *_image, size_t H5_ATTR_UNUSED len, void *_thing)
{
    H5EA_iblock_t *iblock = (H5EA_iblock_t *)_thing; /* Pointer to the object to serialize */
    uint8_t *      image  = (uint8_t *)_image;       /* Pointer into raw data buffer */
    uint32_t       metadata_chksum;                  /* Computed metadata checksum value */
    herr_t         ret_value = SUCCEED;

    FUNC_ENTER_PACKAGE

    /* check arguments */
    HDassert(f);
    HDassert(image);
    HDassert(iblock);
    HDassert(iblock->hdr);

    /* Get temporary pointer to serialized info */

    /* Magic number */
    H5MM_memcpy(image, H5EA_IBLOCK_MAGIC, (size_t)H5_SIZEOF_MAGIC);
    image += H5_SIZEOF_MAGIC;

    /* Version # */
    *image++ = H5EA_IBLOCK_VERSION;

    /* Extensible array type */
    HDassert(iblock->hdr->cparam.cls->id <= 255);
    *image++ = (uint8_t)iblock->hdr->cparam.cls->id;

    /* Address of array header for array which owns this block */
    H5F_addr_encode(f, &image, iblock->hdr->addr);

    /* Internal information */

    /* Encode elements in index block */
    if (iblock->hdr->cparam.idx_blk_elmts > 0) {
        /* Convert from native elements in memory into raw elements on disk */
        if ((iblock->hdr->cparam.cls->encode)(image, iblock->elmts, (size_t)iblock->hdr->cparam.idx_blk_elmts,
                                              iblock->hdr->cb_ctx) < 0)
            HGOTO_ERROR(H5E_EARRAY, H5E_CANTENCODE, FAIL, "can't encode extensible array index elements")
        image += (iblock->hdr->cparam.idx_blk_elmts * iblock->hdr->cparam.raw_elmt_size);
    } /* end if */

    /* Encode data block addresses in index block */
    if (iblock->ndblk_addrs > 0) {
        size_t u; /* Local index variable */

        /* Encode addresses of data blocks in index block */
        for (u = 0; u < iblock->ndblk_addrs; u++)
            H5F_addr_encode(f, &image, iblock->dblk_addrs[u]);
    } /* end if */

    /* Encode data block addresses in index block */
    if (iblock->nsblk_addrs > 0) {
        size_t u; /* Local index variable */

        /* Encode addresses of super blocks in index block */
        for (u = 0; u < iblock->nsblk_addrs; u++)
            H5F_addr_encode(f, &image, iblock->sblk_addrs[u]);
    } /* end if */

    /* Compute metadata checksum */
    metadata_chksum = H5_checksum_metadata(_image, (size_t)(image - (uint8_t *)_image), 0);

    /* Metadata checksum */
    UINT32ENCODE(image, metadata_chksum);

    /* Sanity check */
    HDassert((size_t)(image - (uint8_t *)_image) == len);

done:
    FUNC_LEAVE_NOAPI(ret_value)
} /* end H5EA__cache_iblock_serialize() */

/*-------------------------------------------------------------------------
 * Function:	H5EA__cache_iblock_notify
 *
 * Purpose:	Handle cache action notifications
 *
 * Return:	Non-negative on success/Negative on failure
 *
 * Programmer:	Quincey Koziol
 *              July 17, 2013
 *
 *-------------------------------------------------------------------------
 */
static herr_t
H5EA__cache_iblock_notify(H5AC_notify_action_t action, void *_thing)
{
    H5EA_iblock_t *iblock    = (H5EA_iblock_t *)_thing; /* Pointer to the object */
    herr_t         ret_value = SUCCEED;

    FUNC_ENTER_PACKAGE

    /* Sanity check */
    HDassert(iblock);

    /* Determine which action to take */
    switch (action) {
        case H5AC_NOTIFY_ACTION_AFTER_INSERT:
        case H5AC_NOTIFY_ACTION_AFTER_LOAD:
            /* Create flush dependency on extensible array header */
            if (H5EA__create_flush_depend((H5AC_info_t *)iblock->hdr, (H5AC_info_t *)iblock) < 0)
                HGOTO_ERROR(
                    H5E_EARRAY, H5E_CANTDEPEND, FAIL,
                    "unable to create flush dependency between index block and header, address = %llu",
                    (unsigned long long)iblock->addr)
            break;

        case H5AC_NOTIFY_ACTION_AFTER_FLUSH:
        case H5AC_NOTIFY_ACTION_ENTRY_DIRTIED:
        case H5AC_NOTIFY_ACTION_ENTRY_CLEANED:
        case H5AC_NOTIFY_ACTION_CHILD_DIRTIED:
        case H5AC_NOTIFY_ACTION_CHILD_CLEANED:
        case H5AC_NOTIFY_ACTION_CHILD_UNSERIALIZED:
        case H5AC_NOTIFY_ACTION_CHILD_SERIALIZED:
            /* do nothing */
            break;

        case H5AC_NOTIFY_ACTION_BEFORE_EVICT:
            /* Destroy flush dependency on extensible array header */
            if (H5EA__destroy_flush_depend((H5AC_info_t *)iblock->hdr, (H5AC_info_t *)iblock) < 0)
                HGOTO_ERROR(
                    H5E_EARRAY, H5E_CANTUNDEPEND, FAIL,
                    "unable to destroy flush dependency between index block and header, address = %llu",
                    (unsigned long long)iblock->addr)

            /* Detach from 'top' proxy for extensible array */
            if (iblock->top_proxy) {
                if (H5AC_proxy_entry_remove_child(iblock->top_proxy, iblock) < 0)
                    HGOTO_ERROR(H5E_EARRAY, H5E_CANTUNDEPEND, FAIL,
                                "unable to destroy flush dependency between index block and "
                                "extensible array 'top' proxy")
                iblock->top_proxy = NULL;
            } /* end if */
            break;

        default:
#ifdef NDEBUG
            HGOTO_ERROR(H5E_EARRAY, H5E_BADVALUE, FAIL, "unknown action from metadata cache")
#else  /* NDEBUG */
            HDassert(0 && "Unknown action?!?");
#endif /* NDEBUG */
    }  /* end switch */

done:
    FUNC_LEAVE_NOAPI(ret_value)
} /* end H5EA__cache_iblock_notify() */

/*-------------------------------------------------------------------------
 * Function:	H5EA__cache_iblock_free_icr
 *
 * Purpose:	Destroy/release an "in core representation" of a data
 *              structure
 *
 * Return:	Non-negative on success/Negative on failure
 *
 * Programmer:	Quincey Koziol
 *              July 17, 2013
 *
 *-------------------------------------------------------------------------
 */
static herr_t
H5EA__cache_iblock_free_icr(void *thing)
{
    herr_t ret_value = SUCCEED;

    FUNC_ENTER_PACKAGE

    /* Check arguments */
    HDassert(thing);

    /* Release the extensible array index block */
    if (H5EA__iblock_dest((H5EA_iblock_t *)thing) < 0)
        HGOTO_ERROR(H5E_EARRAY, H5E_CANTFREE, FAIL, "can't free extensible array index block")

done:
    FUNC_LEAVE_NOAPI(ret_value)
} /* end H5EA__cache_iblock_free_icr() */

/*-------------------------------------------------------------------------
 * Function:    H5EA__cache_sblock_get_initial_load_size
 *
 * Purpose:     Compute the size of the data structure on disk.
 *
 * Return:      Non-negative on success/Negative on failure
 *
 * Programmer:  Quincey Koziol
 *              July 17, 2013
 *
 *-------------------------------------------------------------------------
 */
static herr_t
H5EA__cache_sblock_get_initial_load_size(void *_udata, size_t *image_len)
{
    H5EA_sblock_cache_ud_t *udata = (H5EA_sblock_cache_ud_t *)_udata; /* User data */
    H5EA_sblock_t           sblock; /* Fake super block for computing size */

    FUNC_ENTER_PACKAGE_NOERR

    /* Check arguments */
    HDassert(udata);
    HDassert(udata->hdr);
    HDassert(udata->sblk_idx > 0);
    HDassert(H5F_addr_defined(udata->sblk_addr));
    HDassert(image_len);

    /* Set up fake super block for computing size on disk */
    /* (Note: extracted from H5EA__sblock_alloc) */
    HDmemset(&sblock, 0, sizeof(sblock));
    sblock.hdr         = udata->hdr;
    sblock.ndblks      = udata->hdr->sblk_info[udata->sblk_idx].ndblks;
    sblock.dblk_nelmts = udata->hdr->sblk_info[udata->sblk_idx].dblk_nelmts;

    /* Check if # of elements in data blocks requires paging */
    if (sblock.dblk_nelmts > udata->hdr->dblk_page_nelmts) {
        /* Compute # of pages in each data block from this super block */
        sblock.dblk_npages = sblock.dblk_nelmts / udata->hdr->dblk_page_nelmts;

        /* Sanity check that we have at least 2 pages in data block */
        HDassert(sblock.dblk_npages > 1);

        /* Sanity check for integer truncation */
        HDassert((sblock.dblk_npages * udata->hdr->dblk_page_nelmts) == sblock.dblk_nelmts);

        /* Compute size of buffer for each data block's 'page init' bitmask */
        sblock.dblk_page_init_size = ((sblock.dblk_npages) + 7) / 8;
        HDassert(sblock.dblk_page_init_size > 0);
    } /* end if */

    /* Set the image length size */
    *image_len = (size_t)H5EA_SBLOCK_SIZE(&sblock);

    FUNC_LEAVE_NOAPI(SUCCEED)
} /* end H5EA__cache_sblock_get_initial_load_size() */

/*-------------------------------------------------------------------------
 * Function:	H5EA__cache_sblock_verify_chksum
 *
 * Purpose:     Verify the computed checksum of the data structure is the
 *              same as the stored chksum.
 *
 * Return:      Success:        TRUE/FALSE
 *              Failure:        Negative
 *
 * Programmer:	Vailin Choi; Aug 2015
 *
 *-------------------------------------------------------------------------
 */
static htri_t
H5EA__cache_sblock_verify_chksum(const void *_image, size_t len, void H5_ATTR_UNUSED *_udata)
{
    const uint8_t *image = (const uint8_t *)_image; /* Pointer into raw data buffer */
    uint32_t       stored_chksum;                   /* Stored metadata checksum value */
    uint32_t       computed_chksum;                 /* Computed metadata checksum value */
    htri_t         ret_value = TRUE;

    FUNC_ENTER_PACKAGE_NOERR

    /* Check arguments */
    HDassert(image);

    /* Get stored and computed checksums */
    H5F_get_checksums(image, len, &stored_chksum, &computed_chksum);

    if (stored_chksum != computed_chksum)
        ret_value = FALSE;

    FUNC_LEAVE_NOAPI(ret_value)
} /* end H5EA__cache_sblock_verify_chksum() */

/*-------------------------------------------------------------------------
 * Function:	H5EA__cache_sblock_deserialize
 *
 * Purpose:	Loads a data structure from the disk.
 *
 * Return:	Success:	Pointer to a new B-tree.
 *		Failure:	NULL
 *
 * Programmer:	Quincey Koziol
 *              July 17, 2013
 *
 *-------------------------------------------------------------------------
 */
static void *
H5EA__cache_sblock_deserialize(const void *_image, size_t len, void *_udata, hbool_t H5_ATTR_UNUSED *dirty)
{
    H5EA_sblock_t *         sblock = NULL;                             /* Super block info */
    H5EA_sblock_cache_ud_t *udata  = (H5EA_sblock_cache_ud_t *)_udata; /* User data */
    const uint8_t *         image  = (const uint8_t *)_image;          /* Pointer into raw data buffer */
    uint32_t                stored_chksum;                             /* Stored metadata checksum value */
    haddr_t                 arr_addr; /* Address of array header in the file */
    size_t                  u;        /* Local index variable */
    void *                  ret_value = NULL;

    FUNC_ENTER_PACKAGE

    /* Sanity check */
    HDassert(udata);
    HDassert(udata->hdr);
    HDassert(udata->parent);
    HDassert(udata->sblk_idx > 0);
    HDassert(H5F_addr_defined(udata->sblk_addr));

    /* Allocate the extensible array super block */
    if (NULL == (sblock = H5EA__sblock_alloc(udata->hdr, udata->parent, udata->sblk_idx)))
        HGOTO_ERROR(H5E_EARRAY, H5E_CANTALLOC, NULL,
                    "memory allocation failed for extensible array super block")

    /* Set the extensible array super block's address */
    sblock->addr = udata->sblk_addr;

    /* Magic number */
    if (HDmemcmp(image, H5EA_SBLOCK_MAGIC, (size_t)H5_SIZEOF_MAGIC) != 0)
        HGOTO_ERROR(H5E_EARRAY, H5E_BADVALUE, NULL, "wrong extensible array super block signature")
    image += H5_SIZEOF_MAGIC;

    /* Version */
    if (*image++ != H5EA_SBLOCK_VERSION)
        HGOTO_ERROR(H5E_EARRAY, H5E_VERSION, NULL, "wrong extensible array super block version")

    /* Extensible array type */
    if (*image++ != (uint8_t)udata->hdr->cparam.cls->id)
        HGOTO_ERROR(H5E_EARRAY, H5E_BADTYPE, NULL, "incorrect extensible array class")

    /* Address of header for array that owns this block (just for file integrity checks) */
    H5F_addr_decode(udata->hdr->f, &image, &arr_addr);
    if (H5F_addr_ne(arr_addr, udata->hdr->addr))
        HGOTO_ERROR(H5E_EARRAY, H5E_BADVALUE, NULL, "wrong extensible array header address")

    /* Offset of block within the array's address space */
    UINT64DECODE_VAR(image, sblock->block_off, udata->hdr->arr_off_size);

    /* Internal information */

    /* Check for 'page init' bitmasks for this super block */
    if (sblock->dblk_npages > 0) {
        size_t tot_page_init_size =
            sblock->ndblks * sblock->dblk_page_init_size; /* Compute total size of 'page init' buffer */

        /* Retrieve the 'page init' bitmasks */
        H5MM_memcpy(sblock->page_init, image, tot_page_init_size);
        image += tot_page_init_size;
    } /* end if */

    /* Decode data block addresses */
    for (u = 0; u < sblock->ndblks; u++)
        H5F_addr_decode(udata->hdr->f, &image, &sblock->dblk_addrs[u]);

    /* Sanity check */
    /* (allow for checksum not decoded yet) */
    HDassert((size_t)(image - (const uint8_t *)_image) == (len - H5EA_SIZEOF_CHKSUM));

    /* Save the super block's size */
    sblock->size = len;

    /* checksum verification already done in verify_chksum cb */

    /* Metadata checksum */
    UINT32DECODE(image, stored_chksum);

    /* Sanity check */
    HDassert((size_t)(image - (const uint8_t *)_image) == sblock->size);

    /* Set return value */
    ret_value = sblock;

done:
    /* Release resources */
    if (!ret_value)
        if (sblock && H5EA__sblock_dest(sblock) < 0)
            HDONE_ERROR(H5E_EARRAY, H5E_CANTFREE, NULL, "unable to destroy extensible array super block")

    FUNC_LEAVE_NOAPI(ret_value)
} /* end H5EA__cache_sblock_deserialize() */

/*-------------------------------------------------------------------------
 * Function:    H5EA__cache_sblock_image_len
 *
 * Purpose:     Compute the size of the data structure on disk.
 *
 * Return:      Non-negative on success/Negative on failure
 *
 * Programmer:  Quincey Koziol
 *              July 17, 2013
 *
 *-------------------------------------------------------------------------
 */
static herr_t
H5EA__cache_sblock_image_len(const void *_thing, size_t *image_len)
{
    const H5EA_sblock_t *sblock = (const H5EA_sblock_t *)_thing; /* Pointer to the object */

    FUNC_ENTER_PACKAGE_NOERR

    /* Check arguments */
    HDassert(sblock);
    HDassert(image_len);

    /* Set the image length size */
    *image_len = sblock->size;

    FUNC_LEAVE_NOAPI(SUCCEED)
} /* end H5EA__cache_sblock_image_len() */

/*-------------------------------------------------------------------------
 * Function:	H5EA__cache_sblock_serialize
 *
 * Purpose:	Flushes a dirty object to disk.
 *
 * Return:	Non-negative on success/Negative on failure
 *
 * Programmer:	Quincey Koziol
 *              July 17, 2013
 *
 *-------------------------------------------------------------------------
 */
static herr_t
H5EA__cache_sblock_serialize(const H5F_t *f, void *_image, size_t H5_ATTR_UNUSED len, void *_thing)
{
    H5EA_sblock_t *sblock = (H5EA_sblock_t *)_thing; /* Pointer to the object to serialize */
    uint8_t *      image  = (uint8_t *)_image;       /* Pointer into raw data buffer */
    uint32_t       metadata_chksum;                  /* Computed metadata checksum value */
    size_t         u;                                /* Local index variable */

    FUNC_ENTER_PACKAGE_NOERR

    /* check arguments */
    HDassert(f);
    HDassert(image);
    HDassert(sblock);
    HDassert(sblock->hdr);

    /* Magic number */
    H5MM_memcpy(image, H5EA_SBLOCK_MAGIC, (size_t)H5_SIZEOF_MAGIC);
    image += H5_SIZEOF_MAGIC;

    /* Version # */
    *image++ = H5EA_SBLOCK_VERSION;

    /* Extensible array type */
    HDassert(sblock->hdr->cparam.cls->id <= 255);
    *image++ = (uint8_t)sblock->hdr->cparam.cls->id;

    /* Address of array header for array which owns this block */
    H5F_addr_encode(f, &image, sblock->hdr->addr);

    /* Offset of block in array */
    UINT64ENCODE_VAR(image, sblock->block_off, sblock->hdr->arr_off_size);

    /* Internal information */

    /* Check for 'page init' bitmasks for this super block */
    if (sblock->dblk_npages > 0) {
        size_t tot_page_init_size =
            sblock->ndblks * sblock->dblk_page_init_size; /* Compute total size of 'page init' buffer */

        /* Store the 'page init' bitmasks */
        H5MM_memcpy(image, sblock->page_init, tot_page_init_size);
        image += tot_page_init_size;
    } /* end if */

    /* Encode addresses of data blocks in super block */
    for (u = 0; u < sblock->ndblks; u++)
        H5F_addr_encode(f, &image, sblock->dblk_addrs[u]);

    /* Compute metadata checksum */
    metadata_chksum = H5_checksum_metadata(_image, (size_t)(image - (uint8_t *)_image), 0);

    /* Metadata checksum */
    UINT32ENCODE(image, metadata_chksum);

    /* Sanity check */
    HDassert((size_t)(image - (uint8_t *)_image) == len);

    FUNC_LEAVE_NOAPI(SUCCEED)
} /* end H5EA__cache_sblock_serialize() */

/*-------------------------------------------------------------------------
 * Function:	H5EA__cache_sblock_notify
 *
 * Purpose:	Handle cache action notifications
 *
 * Return:	Non-negative on success/Negative on failure
 *
 * Programmer:	Quincey Koziol
 *		Mar 31 2009
 *
 *-------------------------------------------------------------------------
 */
static herr_t
H5EA__cache_sblock_notify(H5AC_notify_action_t action, void *_thing)
{
    H5EA_sblock_t *sblock    = (H5EA_sblock_t *)_thing; /* Pointer to the object */
    herr_t         ret_value = SUCCEED;

    FUNC_ENTER_PACKAGE

    /* Sanity check */
    HDassert(sblock);

    /* Determine which action to take */
    switch (action) {
        case H5AC_NOTIFY_ACTION_AFTER_INSERT:
        case H5AC_NOTIFY_ACTION_AFTER_LOAD:
            /* Create flush dependency on index block */
            if (H5EA__create_flush_depend((H5AC_info_t *)sblock->parent, (H5AC_info_t *)sblock) < 0)
                HGOTO_ERROR(
                    H5E_EARRAY, H5E_CANTDEPEND, FAIL,
                    "unable to create flush dependency between super block and index block, address = %llu",
                    (unsigned long long)sblock->addr)
            break;

        case H5AC_NOTIFY_ACTION_AFTER_FLUSH:
            /* Destroy flush dependency on extensible array header, if set */
            if (sblock->has_hdr_depend) {
                if (H5EA__destroy_flush_depend((H5AC_info_t *)sblock->hdr, (H5AC_info_t *)sblock) < 0)
                    HGOTO_ERROR(
                        H5E_EARRAY, H5E_CANTUNDEPEND, FAIL,
                        "unable to destroy flush dependency between super block and header, address = %llu",
                        (unsigned long long)sblock->addr)
                sblock->has_hdr_depend = FALSE;
            } /* end if */
            break;

        case H5AC_NOTIFY_ACTION_BEFORE_EVICT:
            /* Destroy flush dependency on index block */
            if (H5EA__destroy_flush_depend((H5AC_info_t *)sblock->parent, (H5AC_info_t *)sblock) < 0)
                HGOTO_ERROR(
                    H5E_EARRAY, H5E_CANTUNDEPEND, FAIL,
                    "unable to destroy flush dependency between super block and index block, address = %llu",
                    (unsigned long long)sblock->addr)

            /* Destroy flush dependency on extensible array header, if set */
            if (sblock->has_hdr_depend) {
                if (H5EA__destroy_flush_depend((H5AC_info_t *)sblock->hdr, (H5AC_info_t *)sblock) < 0)
                    HGOTO_ERROR(
                        H5E_EARRAY, H5E_CANTUNDEPEND, FAIL,
                        "unable to destroy flush dependency between super block and header, address = %llu",
                        (unsigned long long)sblock->addr)
                sblock->has_hdr_depend = FALSE;
            } /* end if */

            /* Detach from 'top' proxy for extensible array */
            if (sblock->top_proxy) {
                if (H5AC_proxy_entry_remove_child(sblock->top_proxy, sblock) < 0)
                    HGOTO_ERROR(H5E_EARRAY, H5E_CANTUNDEPEND, FAIL,
                                "unable to destroy flush dependency between super block and "
                                "extensible array 'top' proxy")
                sblock->top_proxy = NULL;
            } /* end if */
            break;

        case H5AC_NOTIFY_ACTION_ENTRY_DIRTIED:
        case H5AC_NOTIFY_ACTION_ENTRY_CLEANED:
        case H5AC_NOTIFY_ACTION_CHILD_DIRTIED:
        case H5AC_NOTIFY_ACTION_CHILD_CLEANED:
        case H5AC_NOTIFY_ACTION_CHILD_UNSERIALIZED:
        case H5AC_NOTIFY_ACTION_CHILD_SERIALIZED:
            /* do nothing */
            break;

        default:
#ifdef NDEBUG
            HGOTO_ERROR(H5E_EARRAY, H5E_BADVALUE, FAIL, "unknown action from metadata cache")
#else  /* NDEBUG */
            HDassert(0 && "Unknown action?!?");
#endif /* NDEBUG */
    }  /* end switch */

done:
    FUNC_LEAVE_NOAPI(ret_value)
} /* end H5EA__cache_sblock_notify() */

/*-------------------------------------------------------------------------
 * Function:	H5EA__cache_sblock_free_icr
 *
 * Purpose:	Destroy/release an "in core representation" of a data
 *              structure
 *
 * Return:	Non-negative on success/Negative on failure
 *
 * Programmer:	Quincey Koziol
 *              July 17, 2013
 *
 *-------------------------------------------------------------------------
 */
static herr_t
H5EA__cache_sblock_free_icr(void *thing)
{
    herr_t ret_value = SUCCEED;

    FUNC_ENTER_PACKAGE

    /* Check arguments */
    HDassert(thing);

    /* Release the extensible array super block */
    if (H5EA__sblock_dest((H5EA_sblock_t *)thing) < 0)
        HGOTO_ERROR(H5E_EARRAY, H5E_CANTFREE, FAIL, "can't free extensible array super block")

done:
    FUNC_LEAVE_NOAPI(ret_value)
} /* end H5EA__cache_sblock_free_icr() */

/*-------------------------------------------------------------------------
 * Function:    H5EA__cache_dblock_get_initial_load_size
 *
 * Purpose:     Compute the size of the data structure on disk.
 *
 * Return:      Non-negative on success/Negative on failure
 *
 * Programmer:  Quincey Koziol
 *              July 17, 2013
 *
 *-------------------------------------------------------------------------
 */
static herr_t
H5EA__cache_dblock_get_initial_load_size(void *_udata, size_t *image_len)
{
    H5EA_dblock_cache_ud_t *udata = (H5EA_dblock_cache_ud_t *)_udata; /* User data */
    H5EA_dblock_t           dblock;                                   /* Fake data block for computing size */

    FUNC_ENTER_PACKAGE_NOERR

    /* Check arguments */
    HDassert(udata);
    HDassert(udata->hdr);
    HDassert(udata->nelmts > 0);
    HDassert(image_len);

    /* Set up fake data block for computing size on disk */
    /* (Note: extracted from H5EA__dblock_alloc) */
    HDmemset(&dblock, 0, sizeof(dblock));

    /* need to set:
     *
     *    dblock.hdr
     *    dblock.npages
     *    dblock.nelmts
     *
     * before we invoke either H5EA_DBLOCK_PREFIX_SIZE() or
     * H5EA_DBLOCK_SIZE().
     */
    dblock.hdr    = udata->hdr;
    dblock.nelmts = udata->nelmts;

    if (udata->nelmts > udata->hdr->dblk_page_nelmts) {
        /* Set the # of pages in the direct block */
        dblock.npages = udata->nelmts / udata->hdr->dblk_page_nelmts;
        HDassert(udata->nelmts == (dblock.npages * udata->hdr->dblk_page_nelmts));
    } /* end if */

    /* Set the image length size */
    if (!dblock.npages)
        *image_len = H5EA_DBLOCK_SIZE(&dblock);
    else
        *image_len = H5EA_DBLOCK_PREFIX_SIZE(&dblock);

    FUNC_LEAVE_NOAPI(SUCCEED)
} /* end H5EA__cache_dblock_get_initial_load_size() */

/*-------------------------------------------------------------------------
 * Function:	H5EA__cache_dblock_verify_chksum
 *
 * Purpose:     Verify the computed checksum of the data structure is the
 *              same as the stored chksum.
 *
 * Return:      Success:        TRUE/FALSE
 *              Failure:        Negative
 *
 * Programmer:	Vailin Choi; Aug 2015
 *
 *-------------------------------------------------------------------------
 */
static htri_t
H5EA__cache_dblock_verify_chksum(const void *_image, size_t len, void H5_ATTR_UNUSED *_udata)
{
    const uint8_t *image = (const uint8_t *)_image; /* Pointer into raw data buffer */
    uint32_t       stored_chksum;                   /* Stored metadata checksum value */
    uint32_t       computed_chksum;                 /* Computed metadata checksum value */
    htri_t         ret_value = TRUE;

    FUNC_ENTER_PACKAGE_NOERR

    /* Check arguments */
    HDassert(image);

    /* Get stored and computed checksums */
    H5F_get_checksums(image, len, &stored_chksum, &computed_chksum);

    if (stored_chksum != computed_chksum)
        ret_value = FALSE;

    FUNC_LEAVE_NOAPI(ret_value)
} /* end H5EA__cache_sblock_verify_chksum() */

/*-------------------------------------------------------------------------
 * Function:	H5EA__cache_dblock_deserialize
 *
 * Purpose:	Loads a data structure from the disk.
 *
 * Return:	Success:	Pointer to a new B-tree.
 *		Failure:	NULL
 *
 * Programmer:	Quincey Koziol
 *              July 17, 2013
 *
 *-------------------------------------------------------------------------
 */
static void *
H5EA__cache_dblock_deserialize(const void *_image, size_t H5_ATTR_NDEBUG_UNUSED len, void *_udata,
                               hbool_t H5_ATTR_UNUSED *dirty)
{
    H5EA_dblock_t *         dblock = NULL;                             /* Data block info */
    H5EA_dblock_cache_ud_t *udata  = (H5EA_dblock_cache_ud_t *)_udata; /* User data */
    const uint8_t *         image  = (const uint8_t *)_image;          /* Pointer into raw data buffer */
    uint32_t                stored_chksum;                             /* Stored metadata checksum value */
    haddr_t                 arr_addr; /* Address of array header in the file */
    void *                  ret_value = NULL;

    FUNC_ENTER_PACKAGE

    /* Check arguments */
    HDassert(udata);
    HDassert(udata->hdr);
    HDassert(udata->parent);
    HDassert(udata->nelmts > 0);
    HDassert(H5F_addr_defined(udata->dblk_addr));

    /* Allocate the extensible array data block */
    if (NULL == (dblock = H5EA__dblock_alloc(udata->hdr, udata->parent, udata->nelmts)))
        HGOTO_ERROR(H5E_EARRAY, H5E_CANTALLOC, NULL,
                    "memory allocation failed for extensible array data block")

    HDassert(((!dblock->npages) && (len == H5EA_DBLOCK_SIZE(dblock))) ||
             (len == H5EA_DBLOCK_PREFIX_SIZE(dblock)));

    /* Set the extensible array data block's information */
    dblock->addr = udata->dblk_addr;

    /* Magic number */
    if (HDmemcmp(image, H5EA_DBLOCK_MAGIC, (size_t)H5_SIZEOF_MAGIC) != 0)
        HGOTO_ERROR(H5E_EARRAY, H5E_BADVALUE, NULL, "wrong extensible array data block signature")
    image += H5_SIZEOF_MAGIC;

    /* Version */
    if (*image++ != H5EA_DBLOCK_VERSION)
        HGOTO_ERROR(H5E_EARRAY, H5E_VERSION, NULL, "wrong extensible array data block version")

    /* Extensible array type */
    if (*image++ != (uint8_t)udata->hdr->cparam.cls->id)
        HGOTO_ERROR(H5E_EARRAY, H5E_BADTYPE, NULL, "incorrect extensible array class")

    /* Address of header for array that owns this block (just for file integrity checks) */
    H5F_addr_decode(udata->hdr->f, &image, &arr_addr);
    if (H5F_addr_ne(arr_addr, udata->hdr->addr))
        HGOTO_ERROR(H5E_EARRAY, H5E_BADVALUE, NULL, "wrong extensible array header address")

    /* Offset of block within the array's address space */
    UINT64DECODE_VAR(image, dblock->block_off, udata->hdr->arr_off_size);

    /* Internal information */

    /* Only decode elements if the data block is not paged */
    if (!dblock->npages) {
        /* Decode elements in data block */
        /* Convert from raw elements on disk into native elements in memory */
        if ((udata->hdr->cparam.cls->decode)(image, dblock->elmts, udata->nelmts, udata->hdr->cb_ctx) < 0)
            HGOTO_ERROR(H5E_EARRAY, H5E_CANTDECODE, NULL, "can't decode extensible array data elements")
        image += (udata->nelmts * udata->hdr->cparam.raw_elmt_size);
    } /* end if */

    /* Sanity check */
    /* (allow for checksum not decoded yet) */
    HDassert((size_t)(image - (const uint8_t *)_image) == (len - H5EA_SIZEOF_CHKSUM));

    /* Set the data block's size */
    /* (Note: This is not the same as the image length, for paged data blocks) */
    dblock->size = H5EA_DBLOCK_SIZE(dblock);

    /* checksum verification already done in verify_chksum cb */

    /* Metadata checksum */
    UINT32DECODE(image, stored_chksum);

    /* Sanity check */
    HDassert((size_t)(image - (const uint8_t *)_image) == len);

    /* Set return value */
    ret_value = dblock;

done:

    /* Release resources */
    if (!ret_value)
        if (dblock && H5EA__dblock_dest(dblock) < 0)
            HDONE_ERROR(H5E_EARRAY, H5E_CANTFREE, NULL, "unable to destroy extensible array data block")

    FUNC_LEAVE_NOAPI(ret_value);
} /* end H5EA__cache_dblock_deserialize() */

/*-------------------------------------------------------------------------
 * Function:    H5EA__cache_dblock_image_len
 *
 * Purpose:     Compute the size of the data structure on disk.
 *
 * Return:      Non-negative on success/Negative on failure
 *
 * Programmer:  Quincey Koziol
 *              July 17, 2013
 *
 *-------------------------------------------------------------------------
 */
static herr_t
H5EA__cache_dblock_image_len(const void *_thing, size_t *image_len)
{
    const H5EA_dblock_t *dblock = (const H5EA_dblock_t *)_thing; /* Pointer to the object */

    FUNC_ENTER_PACKAGE_NOERR

    /* Check arguments */
    HDassert(dblock);
    HDassert(image_len);

    /* Set the image length size */
    if (!dblock->npages)
        *image_len = dblock->size;
    else
        *image_len = (size_t)H5EA_DBLOCK_PREFIX_SIZE(dblock);

    FUNC_LEAVE_NOAPI(SUCCEED)
} /* end H5EA__cache_dblock_image_len() */

/*-------------------------------------------------------------------------
 * Function:	H5EA__cache_dblock_serialize
 *
 * Purpose:	Flushes a dirty object to disk.
 *
 * Return:	Non-negative on success/Negative on failure
 *
 * Programmer:	Quincey Koziol
 *              July 17, 2013
 *
 *-------------------------------------------------------------------------
 */
static herr_t
H5EA__cache_dblock_serialize(const H5F_t *f, void *_image, size_t H5_ATTR_UNUSED len, void *_thing)
{
    H5EA_dblock_t *dblock = (H5EA_dblock_t *)_thing; /* Pointer to the object to serialize */
    uint8_t *      image  = (uint8_t *)_image;       /* Pointer into raw data buffer */
    uint32_t       metadata_chksum;                  /* Computed metadata checksum value */
    herr_t         ret_value = SUCCEED;

    FUNC_ENTER_PACKAGE

    /* check arguments */
    HDassert(f);
    HDassert(image);
    HDassert(dblock);
    HDassert(dblock->hdr);

    /* Magic number */
    H5MM_memcpy(image, H5EA_DBLOCK_MAGIC, (size_t)H5_SIZEOF_MAGIC);
    image += H5_SIZEOF_MAGIC;

    /* Version # */
    *image++ = H5EA_DBLOCK_VERSION;

    /* Extensible array type */
    HDassert(dblock->hdr->cparam.cls->id <= 255);
    *image++ = (uint8_t)dblock->hdr->cparam.cls->id;

    /* Address of array header for array which owns this block */
    H5F_addr_encode(f, &image, dblock->hdr->addr);

    /* Offset of block in array */
    UINT64ENCODE_VAR(image, dblock->block_off, dblock->hdr->arr_off_size);

    /* Internal information */

    /* Only encode elements if the data block is not paged */
    if (!dblock->npages) {
        /* Encode elements in data block */

        /* Convert from native elements in memory into raw elements on disk */
        if ((dblock->hdr->cparam.cls->encode)(image, dblock->elmts, dblock->nelmts, dblock->hdr->cb_ctx) < 0)
            HGOTO_ERROR(H5E_EARRAY, H5E_CANTENCODE, FAIL, "can't encode extensible array data elements")
        image += (dblock->nelmts * dblock->hdr->cparam.raw_elmt_size);
    } /* end if */

    /* Compute metadata checksum */
    metadata_chksum = H5_checksum_metadata(_image, (size_t)(image - (uint8_t *)_image), 0);

    /* Metadata checksum */
    UINT32ENCODE(image, metadata_chksum);

    /* Sanity check */
    HDassert((size_t)(image - (uint8_t *)_image) == len);

done:
    FUNC_LEAVE_NOAPI(ret_value)
} /* end H5EA__cache_dblock_serialize() */

/*-------------------------------------------------------------------------
 * Function:	H5EA__cache_dblock_notify
 *
 * Purpose:	Handle cache action notifications
 *
 * Return:	Non-negative on success/Negative on failure
 *
 * Programmer:	Quincey Koziol
 *		Mar 31 2009
 *
 *-------------------------------------------------------------------------
 */
static herr_t
H5EA__cache_dblock_notify(H5AC_notify_action_t action, void *_thing)
{
    H5EA_dblock_t *dblock    = (H5EA_dblock_t *)_thing; /* Pointer to the object */
    herr_t         ret_value = SUCCEED;

    FUNC_ENTER_PACKAGE

    /* Check arguments */
    HDassert(dblock);

    /* Determine which action to take */
    switch (action) {
        case H5AC_NOTIFY_ACTION_AFTER_INSERT:
        case H5AC_NOTIFY_ACTION_AFTER_LOAD:
            /* Create flush dependency on parent */
            if (H5EA__create_flush_depend((H5AC_info_t *)dblock->parent, (H5AC_info_t *)dblock) < 0)
                HGOTO_ERROR(H5E_EARRAY, H5E_CANTDEPEND, FAIL,
                            "unable to create flush dependency between data block and parent, address = %llu",
                            (unsigned long long)dblock->addr)
            break;

        case H5AC_NOTIFY_ACTION_AFTER_FLUSH:
            /* Destroy flush dependency on extensible array header, if set */
            if (dblock->has_hdr_depend) {
                if (H5EA__destroy_flush_depend((H5AC_info_t *)dblock->hdr, (H5AC_info_t *)dblock) < 0)
                    HGOTO_ERROR(
                        H5E_EARRAY, H5E_CANTUNDEPEND, FAIL,
                        "unable to destroy flush dependency between direct block and header, address = %llu",
                        (unsigned long long)dblock->addr)
                dblock->has_hdr_depend = FALSE;
            } /* end if */
            break;

        case H5AC_NOTIFY_ACTION_BEFORE_EVICT:
            /* Destroy flush dependency on parent */
            if (H5EA__destroy_flush_depend((H5AC_info_t *)dblock->parent, (H5AC_info_t *)dblock) < 0)
                HGOTO_ERROR(
                    H5E_EARRAY, H5E_CANTUNDEPEND, FAIL,
                    "unable to destroy flush dependency between data block and parent, address = %llu",
                    (unsigned long long)dblock->addr)

            /* Destroy flush dependency on extensible array header, if set */
            if (dblock->has_hdr_depend) {
                if (H5EA__destroy_flush_depend((H5AC_info_t *)dblock->hdr, (H5AC_info_t *)dblock) < 0)
                    HGOTO_ERROR(
                        H5E_EARRAY, H5E_CANTUNDEPEND, FAIL,
                        "unable to destroy flush dependency between data block and header, address = %llu",
                        (unsigned long long)dblock->addr)
                dblock->has_hdr_depend = FALSE;
            } /* end if */

            /* Detach from 'top' proxy for extensible array */
            if (dblock->top_proxy) {
                if (H5AC_proxy_entry_remove_child(dblock->top_proxy, dblock) < 0)
                    HGOTO_ERROR(H5E_EARRAY, H5E_CANTUNDEPEND, FAIL,
                                "unable to destroy flush dependency between data block and "
                                "extensible array 'top' proxy")
                dblock->top_proxy = NULL;
            } /* end if */
            break;

        case H5AC_NOTIFY_ACTION_ENTRY_DIRTIED:
        case H5AC_NOTIFY_ACTION_ENTRY_CLEANED:
        case H5AC_NOTIFY_ACTION_CHILD_DIRTIED:
        case H5AC_NOTIFY_ACTION_CHILD_CLEANED:
        case H5AC_NOTIFY_ACTION_CHILD_UNSERIALIZED:
        case H5AC_NOTIFY_ACTION_CHILD_SERIALIZED:
            /* do nothing */
            break;

        default:
#ifdef NDEBUG
            HGOTO_ERROR(H5E_EARRAY, H5E_BADVALUE, FAIL, "unknown action from metadata cache")
#else  /* NDEBUG */
            HDassert(0 && "Unknown action?!?");
#endif /* NDEBUG */
    }  /* end switch */

done:
    FUNC_LEAVE_NOAPI(ret_value)
} /* end H5EA__cache_dblock_notify() */

/*-------------------------------------------------------------------------
 * Function:	H5EA__cache_dblock_free_icr
 *
 * Purpose:	Destroy/release an "in core representation" of a data
 *              structure
 *
 * Return:	Non-negative on success/Negative on failure
 *
 * Programmer:	Quincey Koziol
 *              July 17, 2013
 *
 *-------------------------------------------------------------------------
 */
static herr_t
H5EA__cache_dblock_free_icr(void *thing)
{
    herr_t ret_value = SUCCEED;

    FUNC_ENTER_PACKAGE

    /* Check arguments */
    HDassert(thing);

    /* Release the extensible array data block */
    if (H5EA__dblock_dest((H5EA_dblock_t *)thing) < 0)
        HGOTO_ERROR(H5E_EARRAY, H5E_CANTFREE, FAIL, "can't free extensible array data block")

done:
    FUNC_LEAVE_NOAPI(ret_value)
} /* end H5EA__cache_dblock_free_icr() */

/*-------------------------------------------------------------------------
 * Function:    H5EA__cache_dblock_fsf_size
 *
 * Purpose:     Tell the metadata cache the actual amount of file space
 *              to free when a dblock entry is destroyed with the free
 *              file space block set.
 *
 *              This function is needed when the data block is paged, as
 *              the datablock header and all its pages are allocated as a
 *              single contiguous chunk of file space, and must be
 *              deallocated the same way.
 *
 *              The size of the chunk of memory in which the dblock
 *              header and all its pages is stored in the size field,
 *              so we simply pass that value back to the cache.
 *
 *              If the datablock is not paged, then the size field of
 *              the cache_info contains the correct size.  However this
 *              value will be the same as the size field, so we return
 *              the contents of the size field to the cache in this case
 *              as well.
 *
 * Return:      Non-negative on success/Negative on failure
 *
 * Programmer:  John Mainzer
 *              12/5/14
 *
 *-------------------------------------------------------------------------
 */
static herr_t
H5EA__cache_dblock_fsf_size(const void *_thing, hsize_t *fsf_size)
{
    const H5EA_dblock_t *dblock = (const H5EA_dblock_t *)_thing; /* Pointer to the object */

    FUNC_ENTER_PACKAGE_NOERR

    /* Check arguments */
    HDassert(dblock);
    HDassert(dblock->cache_info.magic == H5C__H5C_CACHE_ENTRY_T_MAGIC);
    HDassert(dblock->cache_info.type == H5AC_EARRAY_DBLOCK);
    HDassert(fsf_size);

    *fsf_size = dblock->size;

    FUNC_LEAVE_NOAPI(SUCCEED)
} /* end H5EA__cache_dblock_fsf_size() */

/*-------------------------------------------------------------------------
 * Function:    H5EA__cache_dblk_page_get_initial_load_size
 *
 * Purpose:     Compute the size of the data structure on disk.
 *
 * Return:      Non-negative on success/Negative on failure
 *
 * Programmer:  Quincey Koziol
 *              July 17, 2013
 *
 *-------------------------------------------------------------------------
 */
static herr_t
H5EA__cache_dblk_page_get_initial_load_size(void *_udata, size_t *image_len)
{
    H5EA_dblk_page_cache_ud_t *udata = (H5EA_dblk_page_cache_ud_t *)_udata; /* User data */

    FUNC_ENTER_PACKAGE_NOERR

    /* Check arguments */
    HDassert(udata);
    HDassert(udata->hdr);
    HDassert(image_len);

    /* Set the image length size */
    *image_len = (size_t)H5EA_DBLK_PAGE_SIZE(udata->hdr);

    FUNC_LEAVE_NOAPI(SUCCEED)
} /* end H5EA__cache_dblk_page_get_initial_load_size() */

/*-------------------------------------------------------------------------
 * Function:	H5EA__cache_dblk_page_verify_chksum
 *
 * Purpose:     Verify the computed checksum of the data structure is the
 *              same as the stored chksum.
 *
 * Return:      Success:        TRUE/FALSE
 *              Failure:        Negative
 *
 * Programmer:	Vailin Choi; Aug 2015
 *
 *-------------------------------------------------------------------------
 */
static htri_t
H5EA__cache_dblk_page_verify_chksum(const void *_image, size_t len, void H5_ATTR_UNUSED *_udata)
{
    const uint8_t *image = (const uint8_t *)_image; /* Pointer into raw data buffer */
    uint32_t       stored_chksum;                   /* Stored metadata checksum value */
    uint32_t       computed_chksum;                 /* Computed metadata checksum value */
    htri_t         ret_value = TRUE;

    FUNC_ENTER_PACKAGE_NOERR

    /* Check arguments */
    HDassert(image);

    /* Get stored and computed checksums */
    H5F_get_checksums(image, len, &stored_chksum, &computed_chksum);

    if (stored_chksum != computed_chksum)
        ret_value = FALSE;

    FUNC_LEAVE_NOAPI(ret_value)
} /* end H5EA__cache_dblk_page_verify_chksum() */

/*-------------------------------------------------------------------------
 * Function:	H5EA__cache_dblk_page_deserialize
 *
 * Purpose:	Loads a data structure from the disk.
 *
 * Return:	Success:	Pointer to a new B-tree.
 *		Failure:	NULL
 *
 * Programmer:	Quincey Koziol
 *              July 17, 2013
 *
 *-------------------------------------------------------------------------
 */
static void *
H5EA__cache_dblk_page_deserialize(const void *_image, size_t len, void *_udata, hbool_t H5_ATTR_UNUSED *dirty)
{
    H5EA_dblk_page_t *         dblk_page = NULL; /* Data block page info */
    H5EA_dblk_page_cache_ud_t *udata =
        (H5EA_dblk_page_cache_ud_t *)_udata;        /* User data for loading data block page */
    const uint8_t *image = (const uint8_t *)_image; /* Pointer into raw data buffer */
    uint32_t       stored_chksum;                   /* Stored metadata checksum value */
    void *         ret_value = NULL;

    FUNC_ENTER_PACKAGE

    /* Sanity check */
    HDassert(udata);
    HDassert(udata->hdr);
    HDassert(udata->parent);
    HDassert(H5F_addr_defined(udata->dblk_page_addr));

    /* Allocate the extensible array data block page */
    if (NULL == (dblk_page = H5EA__dblk_page_alloc(udata->hdr, udata->parent)))
        HGOTO_ERROR(H5E_EARRAY, H5E_CANTALLOC, NULL,
                    "memory allocation failed for extensible array data block page")

    /* Set the extensible array data block page's information */
    dblk_page->addr = udata->dblk_page_addr;

    /* Internal information */

    /* Decode elements in data block page */
    /* Convert from raw elements on disk into native elements in memory */
    if ((udata->hdr->cparam.cls->decode)(image, dblk_page->elmts, udata->hdr->dblk_page_nelmts,
                                         udata->hdr->cb_ctx) < 0)
        HGOTO_ERROR(H5E_EARRAY, H5E_CANTDECODE, NULL, "can't decode extensible array data elements")
    image += (udata->hdr->dblk_page_nelmts * udata->hdr->cparam.raw_elmt_size);

    /* Sanity check */
    /* (allow for checksum not decoded yet) */
    HDassert((size_t)(image - (const uint8_t *)_image) == (len - H5EA_SIZEOF_CHKSUM));

    /* Set the data block page's size */
    dblk_page->size = len;

    /* checksum verification already done in verify_chksum cb */

    /* Metadata checksum */
    UINT32DECODE(image, stored_chksum);

    /* Sanity check */
    HDassert((size_t)(image - (const uint8_t *)_image) == dblk_page->size);

    /* Set return value */
    ret_value = dblk_page;

done:
    /* Release resources */
    if (!ret_value)
        if (dblk_page && H5EA__dblk_page_dest(dblk_page) < 0)
            HDONE_ERROR(H5E_EARRAY, H5E_CANTFREE, NULL, "unable to destroy extensible array data block page")
    FUNC_LEAVE_NOAPI(ret_value)
} /* end H5EA__cache_dblk_page_deserialize() */

/*-------------------------------------------------------------------------
 * Function:    H5EA__cache_dblk_page_image_len
 *
 * Purpose:     Compute the size of the data structure on disk.
 *
 * Return:      Non-negative on success/Negative on failure
 *
 * Programmer:  Quincey Koziol
 *              July 17, 2013
 *
 *-------------------------------------------------------------------------
 */
static herr_t
H5EA__cache_dblk_page_image_len(const void *_thing, size_t *image_len)
{
    const H5EA_dblk_page_t *dblk_page = (const H5EA_dblk_page_t *)_thing; /* Pointer to the object */

    FUNC_ENTER_PACKAGE_NOERR

    /* Check arguments */
    HDassert(dblk_page);
    HDassert(image_len);

    /* Set the image length size */
    *image_len = dblk_page->size;

    FUNC_LEAVE_NOAPI(SUCCEED)
} /* end H5EA__cache_dblk_page_image_len() */

/*-------------------------------------------------------------------------
 * Function:	H5EA__cache_dblk_page_serialize
 *
 * Purpose:	Flushes a dirty object to disk.
 *
 * Return:	Non-negative on success/Negative on failure
 *
 * Programmer:	Quincey Koziol
 *              July 17, 2013
 *
 *-------------------------------------------------------------------------
 */
static herr_t
H5EA__cache_dblk_page_serialize(const H5F_t H5_ATTR_NDEBUG_UNUSED *f, void *_image, size_t H5_ATTR_UNUSED len,
                                void *_thing)
{
    H5EA_dblk_page_t *dblk_page = (H5EA_dblk_page_t *)_thing; /* Pointer to the object to serialize */
    uint8_t *         image     = (uint8_t *)_image;          /* Pointer into raw data buffer */
    uint32_t          metadata_chksum;                        /* Computed metadata checksum value */
    herr_t            ret_value = SUCCEED;

    FUNC_ENTER_PACKAGE

    /* Check arguments */
    HDassert(f);
    HDassert(image);
    HDassert(dblk_page);
    HDassert(dblk_page->hdr);

    /* Internal information */

    /* Encode elements in data block page */

    /* Convert from native elements in memory into raw elements on disk */
    if ((dblk_page->hdr->cparam.cls->encode)(image, dblk_page->elmts, dblk_page->hdr->dblk_page_nelmts,
                                             dblk_page->hdr->cb_ctx) < 0)
        HGOTO_ERROR(H5E_EARRAY, H5E_CANTENCODE, FAIL, "can't encode extensible array data elements")
    image += (dblk_page->hdr->dblk_page_nelmts * dblk_page->hdr->cparam.raw_elmt_size);

    /* Compute metadata checksum */
    metadata_chksum = H5_checksum_metadata(_image, (size_t)(image - (uint8_t *)_image), 0);

    /* Metadata checksum */
    UINT32ENCODE(image, metadata_chksum);

    /* Sanity check */
    HDassert((size_t)(image - (uint8_t *)_image) == len);

done:
    FUNC_LEAVE_NOAPI(ret_value)
} /* end H5EA__cache_dblk_page_serialize() */

/*-------------------------------------------------------------------------
 * Function:	H5EA__cache_dblk_page_notify
 *
 * Purpose:	Handle cache action notifications
 *
 * Return:	Non-negative on success/Negative on failure
 *
 * Programmer:	Quincey Koziol
 *		Mar 31 2009
 *
 *-------------------------------------------------------------------------
 */
static herr_t
H5EA__cache_dblk_page_notify(H5AC_notify_action_t action, void *_thing)
{
    H5EA_dblk_page_t *dblk_page = (H5EA_dblk_page_t *)_thing; /* Pointer to the object */
    herr_t            ret_value = SUCCEED;

    FUNC_ENTER_PACKAGE

    /* Sanity check */
    HDassert(dblk_page);

    /* Determine which action to take */
    switch (action) {
        case H5AC_NOTIFY_ACTION_AFTER_INSERT:
        case H5AC_NOTIFY_ACTION_AFTER_LOAD:
            /* Create flush dependency on parent */
            if (H5EA__create_flush_depend((H5AC_info_t *)dblk_page->parent, (H5AC_info_t *)dblk_page) < 0)
                HGOTO_ERROR(
                    H5E_EARRAY, H5E_CANTDEPEND, FAIL,
                    "unable to create flush dependency between data block page and parent, address = %llu",
                    (unsigned long long)dblk_page->addr)
            break;

        case H5AC_NOTIFY_ACTION_AFTER_FLUSH:
            /* Destroy flush dependency on extensible array header, if set */
            if (dblk_page->has_hdr_depend) {
                if (H5EA__destroy_flush_depend((H5AC_info_t *)dblk_page->hdr, (H5AC_info_t *)dblk_page) < 0)
                    HGOTO_ERROR(H5E_EARRAY, H5E_CANTUNDEPEND, FAIL,
                                "unable to destroy flush dependency between data block page and header, "
                                "address = %llu",
                                (unsigned long long)dblk_page->addr)
                dblk_page->has_hdr_depend = FALSE;
            } /* end if */
            break;

        case H5AC_NOTIFY_ACTION_BEFORE_EVICT:
            /* Destroy flush dependency on parent */
            if (H5EA__destroy_flush_depend((H5AC_info_t *)dblk_page->parent, (H5AC_info_t *)dblk_page) < 0)
                HGOTO_ERROR(
                    H5E_EARRAY, H5E_CANTUNDEPEND, FAIL,
                    "unable to destroy flush dependency between data block page and parent, address = %llu",
                    (unsigned long long)dblk_page->addr)

            /* Destroy flush dependency on extensible array header, if set */
            if (dblk_page->has_hdr_depend) {
                if (H5EA__destroy_flush_depend((H5AC_info_t *)dblk_page->hdr, (H5AC_info_t *)dblk_page) < 0)
                    HGOTO_ERROR(H5E_EARRAY, H5E_CANTUNDEPEND, FAIL,
                                "unable to destroy flush dependency between data block page and header, "
                                "address = %llu",
                                (unsigned long long)dblk_page->addr)
                dblk_page->has_hdr_depend = FALSE;
            } /* end if */

            /* Detach from 'top' proxy for extensible array */
            if (dblk_page->top_proxy) {
                if (H5AC_proxy_entry_remove_child(dblk_page->top_proxy, dblk_page) < 0)
                    HGOTO_ERROR(H5E_EARRAY, H5E_CANTUNDEPEND, FAIL,
                                "unable to destroy flush dependency between data block page and "
                                "extensible array 'top' proxy")
                dblk_page->top_proxy = NULL;
            } /* end if */
            break;

        case H5AC_NOTIFY_ACTION_ENTRY_DIRTIED:
        case H5AC_NOTIFY_ACTION_ENTRY_CLEANED:
        case H5AC_NOTIFY_ACTION_CHILD_DIRTIED:
        case H5AC_NOTIFY_ACTION_CHILD_CLEANED:
        case H5AC_NOTIFY_ACTION_CHILD_UNSERIALIZED:
        case H5AC_NOTIFY_ACTION_CHILD_SERIALIZED:
            /* do nothing */
            break;

        default:
#ifdef NDEBUG
            HGOTO_ERROR(H5E_EARRAY, H5E_BADVALUE, FAIL, "unknown action from metadata cache")
#else  /* NDEBUG */
            HDassert(0 && "Unknown action?!?");
#endif /* NDEBUG */
    }  /* end switch */

done:
    FUNC_LEAVE_NOAPI(ret_value)
} /* end H5EA__cache_dblk_page_notify() */

/*-------------------------------------------------------------------------
 * Function:	H5EA__cache_dblk_page_free_icr
 *
 * Purpose:	Destroy/release an "in core representation" of a data
 *              structure
 *
 * Return:	Non-negative on success/Negative on failure
 *
 * Programmer:	Quincey Koziol
 *              July 17, 2013
 *
 *-------------------------------------------------------------------------
 */
static herr_t
H5EA__cache_dblk_page_free_icr(void *thing)
{
    herr_t ret_value = SUCCEED;

    FUNC_ENTER_PACKAGE

    /* Check arguments */
    HDassert(thing);

    /* Release the extensible array data block page */
    if (H5EA__dblk_page_dest((H5EA_dblk_page_t *)thing) < 0)
        HGOTO_ERROR(H5E_EARRAY, H5E_CANTFREE, FAIL, "can't free extensible array data block page")

done:
    FUNC_LEAVE_NOAPI(ret_value)
} /* end H5EA__cache_dblk_page_free_icr() */
generated by cgit v0.12 at 2025-11-04 00:30:41 (GMT)