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Diffstat (limited to 'src/H5BTpkg.h')
| -rw-r--r-- | src/H5BTpkg.h | 109 |
1 files changed, 109 insertions, 0 deletions
diff --git a/src/H5BTpkg.h b/src/H5BTpkg.h new file mode 100644 index 0000000..83dfbe0 --- /dev/null +++ b/src/H5BTpkg.h @@ -0,0 +1,109 @@ +/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * + * 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 <koziol@ncsa.uiuc.edu> + * Thursday, March 10, 2005 + * + * Purpose: This file contains declarations which are visible only within + * the H5BT package. Source files outside the H5BT package should + * include H5BTprivate.h instead. + */ +#ifndef H5BT_PACKAGE +#error "Do not include this file outside the H5BT package!" +#endif + +#ifndef _H5BTpkg_H +#define _H5BTpkg_H + +/* Get package's private header */ +#include "H5BTprivate.h" + +/* Other private headers needed by this file */ +#include "H5ACprivate.h" /* Metadata cache */ +#include "H5B2private.h" /* v2 B-trees */ +#include "H5FLprivate.h" /* Free Lists */ + +/**************************/ +/* Package Private Macros */ +/**************************/ + +/* Size of signature information (on disk) */ +#define H5BT_SIZEOF_MAGIC 4 + +/* Block Tracker signature */ +#define H5BT_MAGIC "BLTR" + +/* Size of the Block Tracker info on disk */ +#define H5BT_SIZE(f) ( \ + 4 + /* Signature */ \ + 1 + /* Version */ \ + 1 + /* Status flags */ \ + H5F_SIZEOF_SIZE(f) + /* Max. size block tracked (can be 0 for "unknown") */ \ + 4 + /* Reference count of max. size block tracked */ \ + H5F_SIZEOF_SIZE(f) + /* Min. size block tracked (can be 0 for "unknown") */ \ + 4 + /* Reference count of min. size block tracked */ \ + H5F_SIZEOF_SIZE(f) + /* Total number of bytes tracked */ \ + H5F_SIZEOF_ADDR(f)) /* Address of v2 B-tree which holds block inf */ + + +/****************************/ +/* Package Private Typedefs */ +/****************************/ + +/* The block tracker information */ +typedef struct H5BT_t { + /* Information for H5AC cache functions, _must_ be first field in structure */ + H5AC_info_t cache_info; + + /* Internal block tracking information */ + unsigned char status; /* Status flags for max & min values */ + hsize_t max_block_size; /* Maximum size of a block tracked */ + uint32_t max_block_cnt; /* Count of max. block tracked */ + hsize_t min_block_size; /* Minimum size of a block tracked */ + uint32_t min_block_cnt; /* Count of min. block tracked */ + hsize_t tot_block_size; /* Total size of all blocks tracked */ + haddr_t bt2_addr; /* Address of v2 B-tree that holds block info */ +} H5BT_t; + +/* Info for a single block */ +typedef struct H5BT_blk_info_t { + haddr_t addr; /* Address (offset) of block in file */ + hsize_t len; /* Length of block in file */ +} H5BT_blk_info_t; + + +/*****************************/ +/* Package Private Variables */ +/*****************************/ + +/* H5BT inherits cache-like properties from H5AC */ +H5_DLLVAR const H5AC_class_t H5AC_BLTR[1]; + +/* v2 B-tree class for block info records */ +H5_DLLVAR const H5B2_class_t H5B2_BLKTRK[1]; + +/* Declare a free list to manage the H5BT_t struct */ +H5FL_EXTERN(H5BT_t); + + +/******************************/ +/* Package Private Prototypes */ +/******************************/ +H5_DLL herr_t H5BT_cache_dest(H5F_t *f, H5BT_t *b); +H5_DLL herr_t H5BT_hdr_debug(H5F_t *f, hid_t dxpl_id, haddr_t addr, FILE *stream, + int indent, int fwidth); + +#endif /* _H5BTpkg_H */ + |