/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * 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 files COPYING and Copyright.html. COPYING can be found at the root * * of the source code distribution tree; Copyright.html can be found at the * * root level of an installed copy of the electronic HDF5 document set and * * is linked from the top-level documents page. It can also be found at * * http://hdf.ncsa.uiuc.edu/HDF5/doc/Copyright.html. If you do not have * * access to either file, you may request a copy from hdfhelp@ncsa.uiuc.edu. * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ /* * Programmer: Quincey Koziol * Monday, January 31, 2005 * * Purpose: This file contains declarations which are visible only within * the H5B2 package. Source files outside the H5B2 package should * include H5B2private.h instead. */ #ifndef H5B2_PACKAGE #error "Do not include this file outside the H5B2 package!" #endif #ifndef _H5B2pkg_H #define _H5B2pkg_H /* Get package's private header */ #include "H5B2private.h" /* Other private headers needed by this file */ #include "H5ACprivate.h" /* Metadata cache */ #include "H5FLprivate.h" /* Free Lists */ #include "H5RCprivate.h" /* Reference counted object functions */ /**************************/ /* Package Private Macros */ /**************************/ /* Size of signature information (on disk) */ #define H5B2_SIZEOF_MAGIC 4 /* B-tree signatures */ #define H5B2_HDR_MAGIC "BTHD" /* Header */ #define H5B2_INT_MAGIC "BTND" /* Internal node */ #define H5B2_LEAF_MAGIC "BTLF" /* Leaf node */ /* Size of storage for number of records per node (on disk) */ #define H5B2_SIZEOF_RECORDS_PER_NODE 2 /* Size of a "node pointer" (on disk) */ #define H5B2_NODE_POINTER_SIZE(f) (H5F_SIZEOF_ADDR(f)+H5B2_SIZEOF_RECORDS_PER_NODE+H5F_SIZEOF_SIZE(f)) /* Size of the B-tree header on disk */ #define H5B2_HEADER_SIZE(f) ( \ 4 + /* Signature */ \ 1 + /* Version */ \ 1 + /* Tree type */ \ 4 + /* Node size, in bytes */ \ 2 + /* Key size, in bytes */ \ 2 + /* Depth of tree */ \ 2 + /* Split % of full (as integer, ie. "98" means 98%) */ \ 2 + /* Merge % of full (as integer, ie. "98" means 98%) */ \ H5B2_NODE_POINTER_SIZE(f)) /* Node pointer to root node in tree */ /* Macro to retrieve pointer to i'th native record for native record buffer */ #define H5B2_NAT_NREC(b,shared,idx) (b+(shared)->nat_off[(idx)]) /* Macro to retrieve pointer to i'th native record for internal node */ #define H5B2_INT_NREC(i,shared,idx) ((i)->int_native+(shared)->nat_off[(idx)]) /* Macro to retrieve pointer to i'th native record for leaf node */ #define H5B2_LEAF_NREC(l,shared,idx) ((l)->leaf_native+(shared)->nat_off[(idx)]) /****************************/ /* Package Private Typedefs */ /****************************/ /* A "node pointer" to another B-tree node */ typedef struct { haddr_t addr; /* Address of other node */ unsigned node_nrec; /* Number of records used in node pointed to */ hsize_t all_nrec; /* Number of records in node pointed to and all it's children */ } H5B2_node_ptr_t; /* Each B-tree has certain information that can be shared across all * the instances of nodes in that B-tree. */ typedef struct H5B2_shared_t { /* Shared internal data structures */ const H5B2_class_t *type; /* Type of tree */ uint8_t *page; /* Disk page */ H5FL_fac_head_t *int_fac; /* Factory for internal node native record blocks */ H5FL_fac_head_t *leaf_fac; /* Factory for leaf node native record blocks */ H5FL_fac_head_t *node_ptr_fac; /* Factory for internal node node pointer blocks */ size_t *nat_off; /* Array of offsets of native records */ /* Information set by user */ unsigned split_percent; /* Percent full at which to split the node, when inserting */ unsigned merge_percent; /* Percent full at which to merge the node, when deleting */ size_t node_size; /* Size of all nodes, in bytes */ size_t rrec_size; /* Size of "raw" (on disk) record, in bytes */ /* Derived information from user's information */ size_t internal_nrec; /* Number of records which fit into an internal node */ size_t split_int_nrec; /* Number of records to split an internal node at */ size_t merge_int_nrec; /* Number of records to merge an internal node at */ size_t leaf_nrec; /* Number of records which fit into a leaf node */ size_t split_leaf_nrec; /* Number of records to split a leaf node at */ size_t merge_leaf_nrec; /* Number of records to merge a leaf node at */ } H5B2_shared_t; /* The B-tree information */ typedef struct H5B2_t { /* Information for H5AC cache functions, _must_ be first field in structure */ H5AC_info_t cache_info; /* Internal B-tree information */ unsigned depth; /* B-tree's overall depth */ H5B2_node_ptr_t root; /* Node pointer to root node in B-tree */ H5RC_t *shared; /* Ref-counted shared info */ } H5B2_t; /* B-tree leaf node information */ typedef struct H5B2_leaf_t { /* Information for H5AC cache functions, _must_ be first field in structure */ H5AC_info_t cache_info; /* Internal B-tree information */ H5RC_t *shared; /* Ref-counted shared info */ uint8_t *leaf_native; /* Pointer to native records */ unsigned nrec; /* Number of records in node */ } H5B2_leaf_t; /* B-tree internal node information */ typedef struct H5B2_internal_t { /* Information for H5AC cache functions, _must_ be first field in structure */ H5AC_info_t cache_info; /* Internal B-tree information */ H5RC_t *shared; /* Ref-counted shared info */ uint8_t *int_native; /* Pointer to native records */ H5B2_node_ptr_t *node_ptrs; /* Pointer to node pointers */ unsigned nrec; /* Number of records in node */ } H5B2_internal_t; /*****************************/ /* Package Private Variables */ /*****************************/ /* H5B2 header inherits cache-like properties from H5AC */ H5_DLLVAR const H5AC_class_t H5AC_BT2_HDR[1]; /* H5B2 internal node inherits cache-like properties from H5AC */ H5_DLLVAR const H5AC_class_t H5AC_BT2_INT[1]; /* H5B2 leaf node inherits cache-like properties from H5AC */ H5_DLLVAR const H5AC_class_t H5AC_BT2_LEAF[1]; /* Declare a free list to manage the H5B2_t struct */ H5FL_EXTERN(H5B2_t); /* Declare a free list to manage the H5B2_internal_t struct */ H5FL_EXTERN(H5B2_internal_t); /* Declare a free list to manage the H5B2_leaf_t struct */ H5FL_EXTERN(H5B2_leaf_t); /* Internal v2 B-tree testing class */ #ifdef H5B2_TESTING H5_DLLVAR const H5B2_class_t H5B2_TEST[1]; #endif /* H5B2_TESTING */ /******************************/ /* Package Private Prototypes */ /******************************/ H5_DLL herr_t H5B2_shared_free (void *_shared); H5_DLL herr_t H5B2_shared_init (H5F_t *f, H5B2_t *bt2, const H5B2_class_t *type, size_t node_size, size_t rrec_size, unsigned split_percent, unsigned merge_percent); H5_DLL herr_t H5B2_cache_hdr_dest(H5F_t *f, H5B2_t *b); H5_DLL herr_t H5B2_cache_leaf_dest(H5F_t *f, H5B2_leaf_t *l); H5_DLL herr_t H5B2_cache_internal_dest(H5F_t *f, H5B2_internal_t *i); H5_DLL herr_t H5B2_hdr_debug(H5F_t *f, hid_t dxpl_id, haddr_t addr, FILE *stream, int indent, int fwidth, const H5B2_class_t *type); H5_DLL herr_t H5B2_int_debug(H5F_t *f, hid_t dxpl_id, haddr_t addr, FILE *stream, int indent, int fwidth, const H5B2_class_t *type, haddr_t hdr_addr, unsigned nrec); H5_DLL herr_t H5B2_leaf_debug(H5F_t *f, hid_t dxpl_id, haddr_t addr, FILE *stream, int indent, int fwidth, const H5B2_class_t *type, haddr_t hdr_addr, unsigned nrec); #ifdef H5B2_TESTING H5_DLL 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); #endif /* H5B2_TESTING */ #endif /* _H5B2pkg_H */