diff options
Diffstat (limited to 'src/H5HLpkg.h')
| -rw-r--r-- | src/H5HLpkg.h | 97 |
1 files changed, 81 insertions, 16 deletions
diff --git a/src/H5HLpkg.h b/src/H5HLpkg.h index 50cb4ed..8052eb1 100644 --- a/src/H5HLpkg.h +++ b/src/H5HLpkg.h @@ -39,15 +39,15 @@ /* Package Private Variables */ /*****************************/ -/* The cache subclass */ -H5_DLLVAR const H5AC_class_t H5AC_LHEAP[1]; +/* The local heap prefix cache subclass */ +H5_DLLVAR const H5AC_class_t H5AC_LHEAP_PRFX[1]; + +/* The local heap data block cache subclass */ +H5_DLLVAR const H5AC_class_t H5AC_LHEAP_DBLK[1]; /* Declare extern the free list to manage the H5HL_free_t struct */ H5FL_EXTERN(H5HL_free_t); -/* Declare extern the free list to manage the H5HL_t struct */ -H5FL_EXTERN(H5HL_t); - /* Declare extern the PQ free list to manage the heap chunk information */ H5FL_BLK_EXTERN(lheap_chunk); @@ -58,10 +58,14 @@ H5FL_BLK_EXTERN(lheap_chunk); #define H5HL_SIZEOF_HDR(F) \ H5HL_ALIGN(H5_SIZEOF_MAGIC + /*heap signature */ \ - 4 + /*reserved */ \ - H5F_SIZEOF_SIZE (F) + /*data size */ \ - H5F_SIZEOF_SIZE (F) + /*free list head */ \ - H5F_SIZEOF_ADDR (F)) /*data address */ + 1 + /*version */ \ + 3 + /*reserved */ \ + H5F_SIZEOF_SIZE(F) + /*data size */ \ + H5F_SIZEOF_SIZE(F) + /*free list head */ \ + H5F_SIZEOF_ADDR(F)) /*data address */ + +/* Value indicating end of free list on disk */ +#define H5HL_FREE_NULL 1 /****************************/ @@ -75,22 +79,83 @@ typedef struct H5HL_free_t { struct H5HL_free_t *next; /*next entry in free list */ } H5HL_free_t; +/* Forward declarations */ +typedef struct H5HL_dblk_t H5HL_dblk_t; +typedef struct H5HL_prfx_t H5HL_prfx_t; + struct H5HL_t { - H5AC_info_t cache_info; /* Information for H5AC cache functions, _must_ be */ - /* first field in structure */ - haddr_t addr; /*address of data */ - size_t heap_alloc; /*size of heap on disk and in mem */ - uint8_t *chunk; /*the chunk, including header */ + /* General heap-management fields */ + size_t rc; /* Ref. count for prefix & data block using this struct */ + size_t prots; /* # of times the heap has been protected */ + size_t sizeof_size; /* Size of file sizes */ + size_t sizeof_addr; /* Size of file addresses */ + hbool_t single_cache_obj; /* Indicate if the heap is a single object in the cache */ + + /* Prefix-specific fields */ + H5HL_prfx_t *prfx; /* The prefix object for the heap */ + haddr_t prfx_addr; /* address of heap prefix */ + size_t prfx_size; /* size of heap prefix */ + + /* Data block-specific fields */ + H5HL_dblk_t *dblk; /* The data block object for the heap */ + haddr_t dblk_addr; /* address of data block */ + size_t dblk_size; /* size of heap data block on disk and in mem */ + uint8_t *dblk_image; /* The data block image */ H5HL_free_t *freelist; /*the free list */ }; +/* Struct for heap data block */ +struct H5HL_dblk_t { + H5AC_info_t cache_info; /* Information for H5AC cache functions, _must_ be */ + /* first field in structure */ + H5HL_t *heap; /* Pointer to heap for data block */ +}; + +/* Struct for heap prefix */ +struct H5HL_prfx_t { + H5AC_info_t cache_info; /* Information for H5AC cache functions, _must_ be */ + /* first field in structure */ + H5HL_t *heap; /* Pointer to heap for prefix */ +}; + +/* Callback information for loading local heap prefix from disk */ +typedef struct H5HL_cache_prfx_ud_t { + /* Downwards */ + size_t sizeof_size; /* Size of file sizes */ + size_t sizeof_addr; /* Size of file addresses */ + size_t sizeof_prfx; /* Size of heap prefix */ + + /* Upwards */ + hbool_t loaded; /* Whether prefix was loaded from file */ + hsize_t free_block; /* First free block in heap */ +} H5HL_cache_prfx_ud_t; + +/* Callback information for loading local heap data block from disk */ +typedef struct H5HL_cache_dblk_ud_t { + /* Downwards */ + H5HL_t *heap; /* Local heap */ + hsize_t free_block; /* First free block in heap */ + + /* Upwards */ + hbool_t loaded; /* Whether data block was loaded from file */ +} H5HL_cache_dblk_ud_t; + /******************************/ /* Package Private Prototypes */ /******************************/ -H5_DLL herr_t H5HL_dest(H5F_t *f, H5HL_t *heap); -H5_DLL herr_t H5HL_size(const H5F_t *f, const H5HL_t *heap, size_t *size_ptr); +/* Heap routines */ +H5_DLL H5HL_t *H5HL_new(size_t sizeof_size, size_t sizeof_addr, size_t prfx_size); +H5_DLL herr_t H5HL_dest(H5HL_t *heap); + +/* Heap prefix routines */ +H5_DLL H5HL_prfx_t *H5HL_prfx_new(H5HL_t *heap); +H5_DLL herr_t H5HL_prfx_dest(H5HL_prfx_t *prfx); + +/* Heap data block routines */ +H5_DLL H5HL_dblk_t *H5HL_dblk_new(H5HL_t *heap); +H5_DLL herr_t H5HL_dblk_dest(H5F_t *f, H5HL_dblk_t *dblk); #endif /* _H5HLpkg_H */ |