diff options
Diffstat (limited to 'src/H5B.c')
-rw-r--r-- | src/H5B.c | 44 |
1 files changed, 44 insertions, 0 deletions
@@ -2057,3 +2057,47 @@ done: FUNC_LEAVE_NOAPI(ret_value) } /* end H5B_get_info() */ +#ifndef H5_STRICT_FORMAT_CHECKS + +/*------------------------------------------------------------------------- + * Function: H5B_valid + * + * Purpose: Attempt to load a b-tree node. + * + * Return: Non-negative on success/Negative on failure + * + * Programmer: Neil Fortner + * March 17, 2009 + * + *------------------------------------------------------------------------- + */ +htri_t +H5B_valid(H5F_t *f, hid_t dxpl_id, const H5B_class_t *type, haddr_t addr) +{ + H5B_t *bt; /* The btree */ + htri_t ret_value = SUCCEED; /* Return value */ + + FUNC_ENTER_NOAPI(H5B_valid, FAIL) + + /* + * Check arguments. + */ + HDassert(f); + HDassert(type); + + if(!H5F_addr_defined(addr)) + HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "address is undefined") + + /* Protect the node */ + if(NULL == (bt = (H5B_t *)H5AC_protect(f, dxpl_id, H5AC_BT, addr, type, NULL, H5AC_READ))) + HGOTO_ERROR(H5E_BTREE, H5E_CANTLOAD, FAIL, "unable to load B-tree node") + + /* Release the node */ + if(H5AC_unprotect(f, dxpl_id, H5AC_BT, addr, bt, H5AC__NO_FLAGS_SET) < 0) + HGOTO_ERROR(H5E_BTREE, H5E_PROTECT, FAIL, "unable to release B-tree node") + +done: + FUNC_LEAVE_NOAPI(ret_value) +} /* end H5B_valid() */ +#endif /* H5_STRICT_FORMAT_CHECKS */ + |