diff options
Diffstat (limited to 'src/H5B2test.c')
| -rw-r--r-- | src/H5B2test.c | 81 |
1 files changed, 79 insertions, 2 deletions
diff --git a/src/H5B2test.c b/src/H5B2test.c index ac45377..6180683 100644 --- a/src/H5B2test.c +++ b/src/H5B2test.c @@ -24,9 +24,11 @@ /* Private headers */ #include "H5private.h" /* Generic Functions */ #include "H5B2pkg.h" /* B-trees */ +#include "H5Eprivate.h" /* Error handling */ /* Static Prototypes */ -static herr_t H5B2_test_store(const void *udata, void *nrecord); +static herr_t H5B2_test_store(void *nrecord, const void *udata); +static herr_t H5B2_test_retrieve(void *udata, const void *nrecord); static herr_t H5B2_test_compare(const void *rec1, const void *rec2); static herr_t H5B2_test_encode(const H5F_t *f, uint8_t *raw, const void *nrecord); @@ -40,6 +42,7 @@ const H5B2_class_t H5B2_TEST[1]={{ /* B-tree class information */ H5B2_TEST_ID, /* Type of B-tree */ sizeof(hsize_t), /* Size of native key */ H5B2_test_store, /* Record storage callback */ + H5B2_test_retrieve, /* Record retrieval callback */ H5B2_test_compare, /* Record comparison callback */ H5B2_test_encode, /* Record encoding callback */ H5B2_test_decode, /* Record decoding callback */ @@ -64,7 +67,7 @@ const H5B2_class_t H5B2_TEST[1]={{ /* B-tree class information */ *------------------------------------------------------------------------- */ static herr_t -H5B2_test_store(const void *udata, void *nrecord) +H5B2_test_store(void *nrecord, const void *udata) { FUNC_ENTER_NOAPI_NOINIT_NOFUNC(H5B2_test_store) @@ -75,6 +78,33 @@ H5B2_test_store(const void *udata, void *nrecord) /*------------------------------------------------------------------------- + * Function: H5B2_test_retrieve + * + * Purpose: Retrieve native information from record for B-tree + * + * Return: Success: non-negative + * + * Failure: negative + * + * Programmer: Quincey Koziol + * Friday, February 25, 2005 + * + * Modifications: + * + *------------------------------------------------------------------------- + */ +static herr_t +H5B2_test_retrieve(void *udata, const void *nrecord) +{ + FUNC_ENTER_NOAPI_NOINIT_NOFUNC(H5B2_test_retrieve) + + *(hsize_t *)udata=*(const hsize_t *)nrecord; + + FUNC_LEAVE_NOAPI(SUCCEED); +} /* H5B2_test_retrieve() */ + + +/*------------------------------------------------------------------------- * Function: H5B2_test_compare * * Purpose: Compare two native information records, according to some key @@ -183,3 +213,50 @@ H5B2_test_debug(FILE *stream, const H5F_t UNUSED *f, hid_t UNUSED dxpl_id, int i FUNC_LEAVE_NOAPI(SUCCEED); } /* H5B2_test_debug() */ + +/*------------------------------------------------------------------------- + * Function: H5B2_get_root_addr + * + * Purpose: Retrieve the root node's address + * + * Return: Success: non-negative + * + * Failure: negative + * + * Programmer: Quincey Koziol + * Saturday, February 26, 2005 + * + * Modifications: + * + *------------------------------------------------------------------------- + */ +herr_t +H5B2_get_root_addr(H5F_t *f, hid_t dxpl_id, const H5B2_class_t *type, + haddr_t addr, haddr_t *root_addr) +{ + H5B2_t *bt2=NULL; /* Pointer to the B-tree header */ + herr_t ret_value = SUCCEED; + + FUNC_ENTER_NOAPI_NOINIT(H5B2_get_root_addr) + + /* Check arguments. */ + HDassert(f); + HDassert(type); + HDassert(H5F_addr_defined(addr)); + HDassert(root_addr); + + /* Look up the B-tree header */ + if (NULL == (bt2 = H5AC_protect(f, dxpl_id, H5AC_BT2_HDR, addr, type, NULL, H5AC_WRITE))) + HGOTO_ERROR(H5E_BTREE, H5E_CANTPROTECT, FAIL, "unable to load B-tree header") + + /* Get B-tree root addr */ + *root_addr = bt2->root.addr; + +done: + /* Release B-tree header node */ + if (bt2 && H5AC_unprotect(f, dxpl_id, H5AC_BT2_HDR, addr, bt2, H5AC__NO_FLAGS_SET) < 0) + HDONE_ERROR(H5E_BTREE, H5E_CANTUNPROTECT, FAIL, "unable to release B-tree header info") + + FUNC_LEAVE_NOAPI(ret_value) +} /* H5B2_get_root_addr() */ + |