diff options
Diffstat (limited to 'src/H5HFpkg.h')
| -rw-r--r-- | src/H5HFpkg.h | 145 |
1 files changed, 127 insertions, 18 deletions
diff --git a/src/H5HFpkg.h b/src/H5HFpkg.h index 57671c0..6bb87df 100644 --- a/src/H5HFpkg.h +++ b/src/H5HFpkg.h @@ -44,21 +44,76 @@ /* Fractal heap signatures */ #define H5HF_HDR_MAGIC "FRHP" /* Header */ +#define H5HF_DBLOCK_MAGIC "FHDB" /* Direct block */ -/* Size of the fractal heap header on disk */ -#define H5HF_HEADER_SIZE(f) ( \ - /* General metadata fields */ \ +/* "Standard" size of prefix information for fractal heap metadata */ +#define H5HF_METADATA_PREFIX_SIZE ( \ 4 /* Signature */ \ + 1 /* Version */ \ + 1 /* Metadata flags */ \ + 4 /* Metadata checksum */ \ + ) + +/* Size of doubling-table information */ +#define H5HF_DTABLE_INFO_SIZE(f) ( \ + 2 /* Width of table (i.e. # of columns) */ \ + + H5F_SIZEOF_SIZE(f) /* Starting block size */ \ + + H5F_SIZEOF_SIZE(f) /* Maximum direct block size */ \ + + 2 /* Max. size of heap (log2 of actual value - i.e. the # of bits) */ \ + + 2 /* Starting # of rows in root indirect block */ \ + + H5F_SIZEOF_ADDR(f) /* File address of table managed */ \ + + 2 /* Current # of rows in root indirect block */ \ + ) + +/* Size of the fractal heap header on disk */ +#define H5HF_HEADER_SIZE(f) ( \ + /* General metadata fields */ \ + H5HF_METADATA_PREFIX_SIZE \ \ /* Fractal heap header specific fields */ \ + 1 /* Address mapping */ \ + 4 /* Min. size of standalone object */ \ + 4 /* Length of fixed-size objects */ \ + + 1 /* Size of ref. count for objects */ \ + + H5HF_DTABLE_INFO_SIZE(f) /* Size of managed obj. doubling-table info */ \ ) +/* Size of header for each object in an absolute managed direct block */ +#define H5HF_MAN_ABS_DIRECT_OBJ_PREFIX_LEN_SIZE(s, o) ( \ + ((s)->fixed_len_obj ? 0 : H5HF_SIZEOF_OFFSET_LEN(o)) /* Length of object in block */ \ + + (s)->ref_count_size /* Ref. count of object in block */ \ + ) +#define H5HF_MAN_ABS_DIRECT_OBJ_PREFIX_LEN_DBLOCK(s, d) ( \ + ((s)->fixed_len_obj ? 0 : (d)->blk_off_size) /* Length of object in block */ \ + + (s)->ref_count_size /* Ref. count of object in block */ \ + ) + +/* Size of overhead for a direct block */ +#define H5HF_MAN_ABS_DIRECT_OVERHEAD_SIZE(s, o) ( \ + /* General metadata fields */ \ + H5HF_METADATA_PREFIX_SIZE \ + \ + /* Fractal heap managed, absolutely mapped direct block specific fields */ \ + + H5F_SIZEOF_ADDR((s)->f) /* File address of heap owning the block */ \ + + (s)->heap_off_size /* Offset of the block in the heap */ \ + + H5HF_SIZEOF_OFFSET_LEN(o) /* Total free space in a block */ \ + + H5HF_SIZEOF_OFFSET_LEN(o) /* Offset of first descriptor in free list */ \ + ) +#define H5HF_MAN_ABS_DIRECT_OVERHEAD_DBLOCK(s, d) ( \ + /* General metadata fields */ \ + H5HF_METADATA_PREFIX_SIZE \ + \ + /* Fractal heap managed, absolutely mapped direct block specific fields */ \ + + H5F_SIZEOF_ADDR((s)->f) /* File address of heap owning the block */ \ + + (s)->heap_off_size /* Offset of the block in the heap */ \ + + (d)->blk_off_size /* Total free space in a block */ \ + + (d)->blk_off_size /* Offset of first descriptor in free list */ \ + ) + +/* Compute the # of bytes required to store an offset into a given buffer size */ +#define H5HF_SIZEOF_OFFSET_BITS(b) (((b) + 7) / 8) +#define H5HF_SIZEOF_OFFSET_LEN(l) H5HF_SIZEOF_OFFSET_BITS(H5V_log2((unsigned)(l))) + /****************************/ /* Package Private Typedefs */ /****************************/ @@ -66,16 +121,9 @@ /* Doubling-table info */ typedef struct H5HF_dtable_param_t { /* Immutable, pre-set information for table */ - unsigned width; /* Number of columns in the table (must be power of 2) */ - hsize_t start_block_size; /* Starting block size for table (must be power of 2) */ - hsize_t max_direct_size; /* Maximum size of a direct block (must be power of 2) */ - hsize_t max_index; /* Maximum ID/offset for table (must be power of 2) */ - unsigned start_root_rows; /* Starting number of rows for root indirect block */ - /* 0 indicates to create the full indirect block for the root, - * right from the start. Doesn't have to be power of 2 - */ + H5HF_dtable_cparam_t cparam; /* Creation parameters for table */ - /* Derived information that varies during lifetime of table */ + /* Derived information (varies during lifetime of table) */ haddr_t table_addr; /* Address of first block for table */ /* Undefined if no space allocated for table */ unsigned curr_root_rows; /* Current number of rows in the root indirect block */ @@ -89,12 +137,16 @@ typedef struct H5HF_dtable_param_t { * the instances of blocks in that fractal heap. */ typedef struct H5HF_shared_t { - /* Shared internal information */ + /* Shared internal information (varies during lifetime of heap) */ hsize_t next_man_block; /* Offset of next direct managed block */ hsize_t next_std_block; /* Offset of next direct standalone block */ hsize_t total_man_free; /* Total amount of free space in managed blocks */ hsize_t total_std_free; /* Total # of free standalone ID entries */ + /* Cached/computed values */ + haddr_t heap_addr; /* Address of heap header in the file */ + H5F_t *f; /* Pointer to file for heap */ + /* Doubling table information */ /* (Partially set by user, partially derived/updated internally) */ H5HF_dtable_param_t man_dtable_info; /* Doubling-table info for managed objects */ @@ -104,15 +156,17 @@ typedef struct H5HF_shared_t { H5HF_addrmap_t addrmap; /* Type of address mapping */ uint32_t standalone_size; /* Size of object to store standalone */ uint32_t fixed_len_size; /* Size of objects (only for heaps w/fixed-length objects) */ + unsigned char ref_count_size; /* Size of ref. count for objects (only for heaps w/ref. counted objects) */ /* Information derived from user parameters */ hbool_t fixed_len_obj; /* Are objects in the heap fixed length? */ hbool_t ref_count_obj; /* Are objects in the heap ref. counted? */ hbool_t have_io_filter; /* Does the heap have I/O filters for the direct blocks? */ hbool_t write_once; /* Is heap being written in "write once" mode? */ + unsigned char heap_off_size; /* Size of heap offsets (in bytes) */ } H5HF_shared_t; -/* The fractal heap information */ +/* The fractal heap header information */ typedef struct H5HF_t { /* Information for H5AC cache functions, _must_ be first field in structure */ H5AC_info_t cache_info; @@ -121,6 +175,39 @@ typedef struct H5HF_t { H5RC_t *shared; /* Ref-counted shared info */ } H5HF_t; +/* Direct block free list node */ +typedef struct H5HF_direct_free_node_t { + size_t size; /* Size of free space */ + size_t my_offset; /* Offset of free space in block */ + size_t next_offset; /* Offset of next free space in block */ + struct H5HF_direct_free_node_t *prev; /* Previous node in free list */ + struct H5HF_direct_free_node_t *next; /* Next node in free list */ +} H5HF_direct_free_node_t; + +/* Direct block free list header */ +typedef struct H5HF_direct_free_head_t { + H5HF_direct_free_node_t *first; /* First node in free list */ + hbool_t dirty; /* Free list is modified */ +} H5HF_direct_free_head_t; + +/* A fractal heap direct block */ +typedef struct H5HF_direct_t { + /* Information for H5AC cache functions, _must_ be first field in structure */ + H5AC_info_t cache_info; + + /* Internal heap information */ + H5RC_t *shared; /* Ref-counted shared info */ + size_t size; /* Size of direct block */ + size_t blk_off_size; /* Size of offsets in the block */ + H5HF_direct_free_head_t *free_list; /* Pointer to free list for block */ + uint8_t *blk; /* Pointer to buffer containing block data */ + + /* Stored values */ + hsize_t block_off; /* Offset of the block within the heap's address space */ + size_t blk_free_space; /* Total amount of free space in block */ + size_t free_list_head; /* Offset of head of free list in block */ +} H5HF_direct_t; + /*****************************/ /* Package Private Variables */ @@ -129,27 +216,49 @@ typedef struct H5HF_t { /* H5HF header inherits cache-like properties from H5AC */ H5_DLLVAR const H5AC_class_t H5AC_FHEAP_HDR[1]; +/* H5HF direct block inherits cache-like properties from H5AC */ +H5_DLLVAR const H5AC_class_t H5AC_FHEAP_DBLOCK[1]; + /* Declare a free list to manage the H5HF_t struct */ H5FL_EXTERN(H5HF_t); +/* Declare a free list to manage the H5HF_direct_t struct */ +H5FL_EXTERN(H5HF_direct_t); + +/* Declare a free list to manage the H5HF_direct_free_head_t struct */ +H5FL_EXTERN(H5HF_direct_free_head_t); + +/* Declare a free list to manage the H5HF_direct_free_node_t struct */ +H5FL_EXTERN(H5HF_direct_free_node_t); + +/* Declare a free list to manage heap direct block data to/from disk */ +H5FL_BLK_EXTERN(direct_block); + + /******************************/ /* Package Private Prototypes */ /******************************/ /* Routines for managing shared fractal heap info */ -H5_DLL herr_t H5HF_shared_init(H5HF_t *fh, H5HF_create_t *cparam); +H5_DLL H5HF_shared_t * H5HF_shared_alloc(H5F_t *f); +H5_DLL herr_t H5HF_shared_create(H5F_t *f, H5HF_t *fh, haddr_t heap_addr, H5HF_create_t *cparam); +H5_DLL herr_t H5HF_shared_own(H5HF_t *fh, H5HF_shared_t *shared); /* Routines for allocating space */ -herr_t H5HF_man_alloc_end(H5HF_shared_t *shared, size_t size, const void *obj, - void *id/*out*/); +H5_DLL herr_t H5HF_man_alloc_end(H5RC_t *fh_shared, hid_t dxpl_id, unsigned *fh_flags_ptr, + size_t size, const void *obj, void *id/*out*/); +H5_DLL herr_t H5HF_man_dblock_build_freelist(H5HF_direct_t *dblock); /* Metadata cache callbacks */ -H5_DLL herr_t H5HF_cache_hdr_dest(H5F_t *f, H5HF_t *b); +H5_DLL herr_t H5HF_cache_hdr_dest(H5F_t *f, H5HF_t *fh); +H5_DLL herr_t H5HF_cache_dblock_dest(H5F_t *f, H5HF_direct_t *dblock); /* Debugging routines for dumping file structures */ H5_DLL herr_t H5HF_hdr_debug(H5F_t *f, hid_t dxpl_id, haddr_t addr, FILE *stream, int indent, int fwidth); +H5_DLL herr_t H5HF_dblock_debug(H5F_t *f, hid_t dxpl_id, haddr_t addr, + FILE *stream, int indent, int fwidth, haddr_t hdr_addr, unsigned nrec); /* Testing routines */ #ifdef H5HF_TESTING |