/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * Copyright by The HDF Group. * * 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://hdfgroup.org/HDF5/doc/Copyright.html. If you do not have * * access to either file, you may request a copy from help@hdfgroup.org. * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ /* * Programmer: Quincey Koziol * Monday, April 14, 2003 * * Purpose: This file contains declarations which are visible only within * the H5D package. Source files outside the H5D package should * include H5Dprivate.h instead. */ #ifndef H5D_PACKAGE #error "Do not include this file outside the H5D package!" #endif #ifndef _H5Dpkg_H #define _H5Dpkg_H /* Get package's private header */ #include "H5Dprivate.h" /* Other private headers needed by this file */ #include "H5ACprivate.h" /* Metadata cache */ #include "H5B2private.h" /* v2 B-trees */ #include "H5Fprivate.h" /* File access */ #include "H5Gprivate.h" /* Groups */ #include "H5SLprivate.h" /* Skip lists */ #include "H5Tprivate.h" /* Datatypes */ /**************************/ /* Package Private Macros */ /**************************/ /* Set the minimum object header size to create objects with */ #define H5D_MINHDR_SIZE 256 /* [Simple] Macro to construct a H5D_io_info_t from it's components */ #define H5D_BUILD_IO_INFO_WRT(io_info, ds, dxpl_c, dxpl_i, str, buf) \ (io_info)->dset = ds; \ (io_info)->dxpl_cache = dxpl_c; \ (io_info)->dxpl_id = dxpl_i; \ (io_info)->store = str; \ (io_info)->op_type = H5D_IO_OP_WRITE; \ (io_info)->u.wbuf = buf #define H5D_BUILD_IO_INFO_RD(io_info, ds, dxpl_c, dxpl_i, str, buf) \ (io_info)->dset = ds; \ (io_info)->dxpl_cache = dxpl_c; \ (io_info)->dxpl_id = dxpl_i; \ (io_info)->store = str; \ (io_info)->op_type = H5D_IO_OP_READ; \ (io_info)->u.rbuf = buf /* Flags for marking aspects of a dataset dirty */ #define H5D_MARK_SPACE 0x01 #define H5D_MARK_LAYOUT 0x02 /* Default creation parameters for chunk index data structures */ /* See H5O_layout_chunk_t */ /* Fixed array creation values */ #define H5D_FARRAY_CREATE_PARAM_SIZE 1 /* Size of the creation parameters in bytes */ #define H5D_FARRAY_MAX_DBLK_PAGE_NELMTS_BITS 10 /* i.e. 1024 elements per data block page */ /* Extensible array creation values */ #define H5D_EARRAY_CREATE_PARAM_SIZE 5 /* Size of the creation parameters in bytes */ #define H5D_EARRAY_MAX_NELMTS_BITS 32 /* i.e. 4 giga-elements */ #define H5D_EARRAY_IDX_BLK_ELMTS 4 #define H5D_EARRAY_SUP_BLK_MIN_DATA_PTRS 4 #define H5D_EARRAY_DATA_BLK_MIN_ELMTS 16 #define H5D_EARRAY_MAX_DBLOCK_PAGE_NELMTS_BITS 10 /* i.e. 1024 elements per data block page */ /* v2 B-tree creation values for raw meta_size */ #define H5D_BT2_CREATE_PARAM_SIZE 6 /* Size of the creation parameters in bytes */ #define H5D_BT2_NODE_SIZE 512 #define H5D_BT2_SPLIT_PERC 100 #define H5D_BT2_MERGE_PERC 40 /****************************/ /* Package Private Typedefs */ /****************************/ /* Typedef for datatype information for raw data I/O operation */ typedef struct H5D_type_info_t { /* Initial values */ const H5T_t *mem_type; /* Pointer to memory datatype */ const H5T_t *dset_type; /* Pointer to dataset datatype */ H5T_path_t *tpath; /* Datatype conversion path */ hid_t src_type_id; /* Source datatype ID */ hid_t dst_type_id; /* Destination datatype ID */ /* Computed/derived values */ size_t src_type_size; /* Size of source type */ size_t dst_type_size; /* Size of destination type */ size_t max_type_size; /* Size of largest source/destination type */ hbool_t is_conv_noop; /* Whether the type conversion is a NOOP */ hbool_t is_xform_noop; /* Whether the data transform is a NOOP */ const H5T_subset_info_t *cmpd_subset; /* Info related to the compound subset conversion functions */ H5T_bkg_t need_bkg; /* Type of background buf needed */ size_t request_nelmts; /* Requested strip mine */ uint8_t *tconv_buf; /* Datatype conv buffer */ hbool_t tconv_buf_allocated; /* Whether the type conversion buffer was allocated */ uint8_t *bkg_buf; /* Background buffer */ hbool_t bkg_buf_allocated; /* Whether the background buffer was allocated */ } H5D_type_info_t; /* Forward declaration of structs used below */ struct H5D_io_info_t; struct H5D_chunk_map_t; /* Function pointers for I/O on particular types of dataset layouts */ typedef herr_t (*H5D_layout_construct_func_t)(H5F_t *f, H5D_t *dset); typedef herr_t (*H5D_layout_init_func_t)(H5F_t *f, hid_t dxpl_id, const H5D_t *dset, hid_t dapl_id); typedef hbool_t (*H5D_layout_is_space_alloc_func_t)(const H5O_storage_t *storage); typedef herr_t (*H5D_layout_io_init_func_t)(const struct H5D_io_info_t *io_info, const H5D_type_info_t *type_info, hsize_t nelmts, const H5S_t *file_space, const H5S_t *mem_space, struct H5D_chunk_map_t *cm); typedef herr_t (*H5D_layout_read_func_t)(struct H5D_io_info_t *io_info, const H5D_type_info_t *type_info, hsize_t nelmts, const H5S_t *file_space, const H5S_t *mem_space, struct H5D_chunk_map_t *fm); typedef herr_t (*H5D_layout_write_func_t)(struct H5D_io_info_t *io_info, const H5D_type_info_t *type_info, hsize_t nelmts, const H5S_t *file_space, const H5S_t *mem_space, struct H5D_chunk_map_t *fm); typedef ssize_t (*H5D_layout_readvv_func_t)(const struct H5D_io_info_t *io_info, size_t dset_max_nseq, size_t *dset_curr_seq, size_t dset_len_arr[], hsize_t dset_offset_arr[], size_t mem_max_nseq, size_t *mem_curr_seq, size_t mem_len_arr[], hsize_t mem_offset_arr[]); typedef ssize_t (*H5D_layout_writevv_func_t)(const struct H5D_io_info_t *io_info, size_t dset_max_nseq, size_t *dset_curr_seq, size_t dset_len_arr[], hsize_t dset_offset_arr[], size_t mem_max_nseq, size_t *mem_curr_seq, size_t mem_len_arr[], hsize_t mem_offset_arr[]); typedef herr_t (*H5D_layout_flush_func_t)(H5D_t *dataset, hid_t dxpl_id); typedef herr_t (*H5D_layout_io_term_func_t)(const struct H5D_chunk_map_t *cm); typedef herr_t (*H5D_layout_dest_func_t)(H5D_t *dataset, hid_t dxpl_id); /* Typedef for grouping layout I/O routines */ typedef struct H5D_layout_ops_t { H5D_layout_construct_func_t construct; /* Layout constructor for new datasets */ H5D_layout_init_func_t init; /* Layout initializer for dataset */ H5D_layout_is_space_alloc_func_t is_space_alloc; /* Query routine to determine if storage is allocated */ H5D_layout_io_init_func_t io_init; /* I/O initialization routine */ H5D_layout_read_func_t ser_read; /* High-level I/O routine for reading data in serial */ H5D_layout_write_func_t ser_write; /* High-level I/O routine for writing data in serial */ #ifdef H5_HAVE_PARALLEL H5D_layout_read_func_t par_read; /* High-level I/O routine for reading data in parallel */ H5D_layout_write_func_t par_write; /* High-level I/O routine for writing data in parallel */ #endif /* H5_HAVE_PARALLEL */ H5D_layout_readvv_func_t readvv; /* Low-level I/O routine for reading data */ H5D_layout_writevv_func_t writevv; /* Low-level I/O routine for writing data */ H5D_layout_flush_func_t flush; /* Low-level I/O routine for flushing raw data */ H5D_layout_io_term_func_t io_term; /* I/O shutdown routine */ H5D_layout_dest_func_t dest; /* Destroy layout info */ } H5D_layout_ops_t; /* Function pointers for either multiple or single block I/O access */ typedef herr_t (*H5D_io_single_read_func_t)(const struct H5D_io_info_t *io_info, const H5D_type_info_t *type_info, hsize_t nelmts, const H5S_t *file_space, const H5S_t *mem_space); typedef herr_t (*H5D_io_single_write_func_t)(const struct H5D_io_info_t *io_info, const H5D_type_info_t *type_info, hsize_t nelmts, const H5S_t *file_space, const H5S_t *mem_space); /* Typedef for raw data I/O framework info */ typedef struct H5D_io_ops_t { H5D_layout_read_func_t multi_read; /* High-level I/O routine for reading data */ H5D_layout_write_func_t multi_write; /* High-level I/O routine for writing data */ H5D_io_single_read_func_t single_read; /* I/O routine for reading single block */ H5D_io_single_write_func_t single_write; /* I/O routine for writing single block */ } H5D_io_ops_t; /* Typedefs for dataset storage information */ typedef struct { haddr_t dset_addr; /* Address of dataset in file */ hsize_t dset_size; /* Total size of dataset in file */ } H5D_contig_storage_t; typedef struct { hsize_t *scaled; /* Scaled coordinates for a chunk */ } H5D_chunk_storage_t; typedef struct { void *buf; /* Buffer for compact dataset */ hbool_t *dirty; /* Pointer to dirty flag to mark */ } H5D_compact_storage_t; typedef union H5D_storage_t { H5D_contig_storage_t contig; /* Contiguous information for dataset */ H5D_chunk_storage_t chunk; /* Chunk information for dataset */ H5D_compact_storage_t compact; /* Compact information for dataset */ H5O_efl_t efl; /* External file list information for dataset */ } H5D_storage_t; /* Typedef for raw data I/O operation info */ typedef enum H5D_io_op_type_t { H5D_IO_OP_READ, /* Read operation */ H5D_IO_OP_WRITE /* Write operation */ } H5D_io_op_type_t; typedef struct H5D_io_info_t { const H5D_t *dset; /* Pointer to dataset being operated on */ #ifndef H5_HAVE_PARALLEL const #endif /* H5_HAVE_PARALLEL */ H5D_dxpl_cache_t *dxpl_cache; /* Pointer to cached DXPL info */ hid_t dxpl_id; /* Original DXPL ID */ #ifdef H5_HAVE_PARALLEL MPI_Comm comm; /* MPI communicator for file */ hbool_t using_mpi_vfd; /* Whether the file is using an MPI-based VFD */ struct { H5FD_mpio_xfer_t xfer_mode; /* Parallel transfer for this request (H5D_XFER_IO_XFER_MODE_NAME) */ H5FD_mpio_collective_opt_t coll_opt_mode; /* Parallel transfer with independent IO or collective IO with this mode */ H5D_io_ops_t io_ops; /* I/O operation function pointers */ } orig; #endif /* H5_HAVE_PARALLEL */ H5D_storage_t *store; /* Dataset storage info */ H5D_layout_ops_t layout_ops; /* Dataset layout I/O operation function pointers */ H5D_io_ops_t io_ops; /* I/O operation function pointers */ H5D_io_op_type_t op_type; union { void *rbuf; /* Pointer to buffer for read */ const void *wbuf; /* Pointer to buffer to write */ } u; } H5D_io_info_t; /******************/ /* Chunk typedefs */ /******************/ /* Typedef for chunked dataset index operation info */ typedef struct H5D_chk_idx_info_t { H5F_t *f; /* File pointer for operation */ hid_t dxpl_id; /* DXPL ID for operation */ const H5O_pline_t *pline; /* I/O pipeline info */ H5O_layout_chunk_t *layout; /* Chunk layout description */ H5O_storage_chunk_t *storage; /* Chunk storage description */ } H5D_chk_idx_info_t; /* * "Generic" chunk record. Each chunk is keyed by the minimum logical * N-dimensional coordinates and the datatype size of the chunk. * The fastest-varying dimension is assumed to reference individual bytes of * the array, so a 100-element 1-D array of 4-byte integers would really be a * 2-D array with the slow varying dimension of size 100 and the fast varying * dimension of size 4 (the storage dimensionality has very little to do with * the real dimensionality). * * The chunk's file address, filter mask and size on disk are not key values. */ typedef struct H5D_chunk_rec_t { hsize_t scaled[H5O_LAYOUT_NDIMS]; /* Logical offset to start */ uint32_t nbytes; /* Size of stored data */ unsigned filter_mask; /* Excluded filters */ haddr_t chunk_addr; /* Address of chunk in file */ } H5D_chunk_rec_t; /* * Common data exchange structure for indexed storage nodes. This structure is * passed through the indexing layer to the methods for the objects * to which the index points. */ typedef struct H5D_chunk_common_ud_t { /* downward */ const H5O_layout_chunk_t *layout; /* Chunk layout description */ const H5O_storage_chunk_t *storage; /* Chunk storage description */ const hsize_t *scaled; /* Scaled coordinates for a chunk */ const struct H5D_rdcc_t *rdcc; /* Chunk cache. Only necessary if the index may * be modified, and if any chunks in the dset * may be cached */ } H5D_chunk_common_ud_t; /* B-tree callback info for various operations */ typedef struct H5D_chunk_ud_t { H5D_chunk_common_ud_t common; /* Common info for B-tree user data (must be first) */ /* Upward */ unsigned idx_hint; /*index of chunk in cache, if present */ H5F_block_t chunk_block; /*offset/length of chunk in file */ unsigned filter_mask; /*excluded filters */ hbool_t new_unfilt_chunk; /*whether the chunk just became unfiltered */ hsize_t chunk_idx; /*chunk index for EA, FA indexing */ hbool_t need_modify; } H5D_chunk_ud_t; /* Typedef for "generic" chunk callbacks */ typedef int (*H5D_chunk_cb_func_t)(const H5D_chunk_rec_t *chunk_rec, void *udata); /* Typedefs for chunk operations */ typedef herr_t (*H5D_chunk_init_func_t)(const H5D_chk_idx_info_t *idx_info, const H5S_t *space, haddr_t dset_ohdr_addr); typedef herr_t (*H5D_chunk_create_func_t)(const H5D_chk_idx_info_t *idx_info); typedef hbool_t (*H5D_chunk_is_space_alloc_func_t)(const H5O_storage_chunk_t *storage); typedef herr_t (*H5D_chunk_insert_func_t)(const H5D_chk_idx_info_t *idx_info, H5D_chunk_ud_t *udata); typedef herr_t (*H5D_chunk_get_addr_func_t)(const H5D_chk_idx_info_t *idx_info, H5D_chunk_ud_t *udata); typedef herr_t (*H5D_chunk_resize_func_t)(H5O_layout_chunk_t *layout); typedef int (*H5D_chunk_iterate_func_t)(const H5D_chk_idx_info_t *idx_info, H5D_chunk_cb_func_t chunk_cb, void *chunk_udata); typedef herr_t (*H5D_chunk_remove_func_t)(const H5D_chk_idx_info_t *idx_info, H5D_chunk_common_ud_t *udata); typedef herr_t (*H5D_chunk_delete_func_t)(const H5D_chk_idx_info_t *idx_info); typedef herr_t (*H5D_chunk_copy_setup_func_t)(const H5D_chk_idx_info_t *idx_info_src, const H5D_chk_idx_info_t *idx_info_dst); typedef herr_t (*H5D_chunk_copy_shutdown_func_t)(H5O_storage_chunk_t *storage_src, H5O_storage_chunk_t *storage_dst, hid_t dxpl_id); typedef herr_t (*H5D_chunk_size_func_t)(const H5D_chk_idx_info_t *idx_info, hsize_t *idx_size); typedef herr_t (*H5D_chunk_reset_func_t)(H5O_storage_chunk_t *storage, hbool_t reset_addr); typedef herr_t (*H5D_chunk_dump_func_t)(const H5O_storage_chunk_t *storage, FILE *stream); typedef herr_t (*H5D_chunk_dest_func_t)(const H5D_chk_idx_info_t *idx_info); /* Typedef for grouping chunk I/O routines */ typedef struct H5D_chunk_ops_t { hbool_t can_swim; /* Flag to indicate that the index supports SWMR access */ H5D_chunk_init_func_t init; /* Routine to initialize indexing information in memory */ H5D_chunk_create_func_t create; /* Routine to create chunk index */ H5D_chunk_is_space_alloc_func_t is_space_alloc; /* Query routine to determine if storage/index is allocated */ H5D_chunk_insert_func_t insert_addr; /* Routine to insert a chunk into an index */ H5D_chunk_get_addr_func_t get_addr; /* Routine to retrieve address of chunk in file */ H5D_chunk_resize_func_t resize; /* Routine to update chunk index info after resizing dataset */ H5D_chunk_iterate_func_t iterate; /* Routine to iterate over chunks */ H5D_chunk_remove_func_t remove; /* Routine to remove a chunk from an index */ H5D_chunk_delete_func_t idx_delete; /* Routine to delete index & all chunks from file*/ H5D_chunk_copy_setup_func_t copy_setup; /* Routine to perform any necessary setup for copying chunks */ H5D_chunk_copy_shutdown_func_t copy_shutdown; /* Routine to perform any necessary shutdown for copying chunks */ H5D_chunk_size_func_t size; /* Routine to get size of indexing information */ H5D_chunk_reset_func_t reset; /* Routine to reset indexing information */ H5D_chunk_dump_func_t dump; /* Routine to dump indexing information */ H5D_chunk_dest_func_t dest; /* Routine to destroy indexing information in memory */ } H5D_chunk_ops_t; /* Structure holding information about a chunk's selection for mapping */ typedef struct H5D_chunk_info_t { hsize_t index; /* "Index" of chunk in dataset */ uint32_t chunk_points; /* Number of elements selected in chunk */ hsize_t scaled[H5O_LAYOUT_NDIMS]; /* Scaled coordinates of chunk (in file dataset's dataspace) */ H5S_t *fspace; /* Dataspace describing chunk & selection in it */ hbool_t fspace_shared; /* Indicate that the file space for a chunk is shared and shouldn't be freed */ H5S_t *mspace; /* Dataspace describing selection in memory corresponding to this chunk */ hbool_t mspace_shared; /* Indicate that the memory space for a chunk is shared and shouldn't be freed */ } H5D_chunk_info_t; /* Main structure holding the mapping between file chunks and memory */ typedef struct H5D_chunk_map_t { H5O_layout_t *layout; /* Dataset layout information*/ hsize_t nelmts; /* Number of elements selected in file & memory dataspaces */ const H5S_t *file_space; /* Pointer to the file dataspace */ unsigned f_ndims; /* Number of dimensions for file dataspace */ const H5S_t *mem_space; /* Pointer to the memory dataspace */ H5S_t *mchunk_tmpl; /* Dataspace template for new memory chunks */ H5S_sel_iter_t mem_iter; /* Iterator for elements in memory selection */ unsigned m_ndims; /* Number of dimensions for memory dataspace */ H5S_sel_type msel_type; /* Selection type in memory */ H5S_sel_type fsel_type; /* Selection type in file */ H5SL_t *sel_chunks; /* Skip list containing information for each chunk selected */ H5S_t *single_space; /* Dataspace for single chunk */ H5D_chunk_info_t *single_chunk_info; /* Pointer to single chunk's info */ hbool_t use_single; /* Whether I/O is on a single element */ hsize_t last_index; /* Index of last chunk operated on */ H5D_chunk_info_t *last_chunk_info; /* Pointer to last chunk's info */ hsize_t chunk_dim[H5O_LAYOUT_NDIMS]; /* Size of chunk in each dimension */ #ifdef H5_HAVE_PARALLEL H5D_chunk_info_t **select_chunk; /* Store the information about whether this chunk is selected or not */ #endif /* H5_HAVE_PARALLEL */ } H5D_chunk_map_t; /* Cached information about a particular chunk */ typedef struct H5D_chunk_cached_t { hbool_t valid; /*whether cache info is valid*/ hsize_t scaled[H5O_LAYOUT_NDIMS]; /*scaled offset of chunk*/ haddr_t addr; /*file address of chunk */ uint32_t nbytes; /*size of stored data */ hsize_t chunk_idx; /*index of chunk in dataset */ unsigned filter_mask; /*excluded filters */ } H5D_chunk_cached_t; /* The raw data chunk cache */ typedef struct H5D_rdcc_t { struct { unsigned ninits; /* Number of chunk creations */ unsigned nhits; /* Number of cache hits */ unsigned nmisses;/* Number of cache misses */ unsigned nflushes;/* Number of cache flushes */ } stats; size_t nbytes_max; /* Maximum cached raw data in bytes */ size_t nslots; /* Number of chunk slots allocated */ double w0; /* Chunk preemption policy */ struct H5D_rdcc_ent_t *head; /* Head of doubly linked list */ struct H5D_rdcc_ent_t *tail; /* Tail of doubly linked list */ struct H5D_rdcc_ent_t *tmp_head; /* Head of temporary doubly linked list. Chunks on this list are not in the hash table (slot). The head entry is a sentinel (does not refer to an actual chunk). */ size_t nbytes_used; /* Current cached raw data in bytes */ int nused; /* Number of chunk slots in use */ H5D_chunk_cached_t last; /* Cached copy of last chunk information */ struct H5D_rdcc_ent_t **slot; /* Chunk slots, each points to a chunk*/ H5SL_t *sel_chunks; /* Skip list containing information for each chunk selected */ H5S_t *single_space; /* Dataspace for single element I/O on chunks */ H5D_chunk_info_t *single_chunk_info; /* Pointer to single chunk's info */ /* Cached information about scaled dataspace dimensions */ hsize_t scaled_dims[H5S_MAX_RANK]; /* The scaled dim sizes */ hsize_t scaled_power2up[H5S_MAX_RANK]; /* The scaled dim sizes, rounded up to next power of 2 */ unsigned scaled_encode_bits[H5S_MAX_RANK]; /* The number of bits needed to encode the scaled dim sizes */ } H5D_rdcc_t; /* The raw data contiguous data cache */ typedef struct H5D_rdcdc_t { unsigned char *sieve_buf; /* Buffer to hold data sieve buffer */ haddr_t sieve_loc; /* File location (offset) of the data sieve buffer */ size_t sieve_size; /* Size of the data sieve buffer used (in bytes) */ size_t sieve_buf_size; /* Size of the data sieve buffer allocated (in bytes) */ hbool_t sieve_dirty; /* Flag to indicate that the data sieve buffer is dirty */ } H5D_rdcdc_t; /* * A dataset is made of two layers, an H5D_t struct that is unique to * each instance of an opened datset, and a shared struct that is only * created once for a given dataset. Thus, if a dataset is opened twice, * there will be two IDs and two H5D_t structs, both sharing one H5D_shared_t. */ typedef struct H5D_shared_t { size_t fo_count; /* Reference count */ hbool_t closing; /* Flag to indicate dataset is closing */ hid_t type_id; /* ID for dataset's datatype */ H5T_t *type; /* Datatype for this dataset */ H5S_t *space; /* Dataspace of this dataset */ hbool_t space_dirty; /* Whether the dataspace info needs to be flushed to the file */ hbool_t layout_dirty; /* Whether the layout info needs to be flushed to the file */ hid_t dcpl_id; /* Dataset creation property id */ H5D_dcpl_cache_t dcpl_cache; /* Cached DCPL values */ H5O_layout_t layout; /* Data layout */ hbool_t checked_filters;/* TRUE if dataset passes can_apply check */ H5O_t *oh; /* Pointer to dataset's object header, pinned */ hbool_t is_swimming; /* TRUE if dataset has SWMR access enabled */ /* Cached dataspace info */ unsigned ndims; /* The dataset's dataspace rank */ hsize_t curr_dims[H5S_MAX_RANK]; /* The curr. size of dataset dimensions */ hsize_t curr_power2up[H5S_MAX_RANK]; /* The curr. dim sizes, rounded up to next power of 2 */ hsize_t max_dims[H5S_MAX_RANK]; /* The max. size of dataset dimensions */ /* Buffered/cached information for types of raw data storage*/ struct { H5D_rdcdc_t contig; /* Information about contiguous data */ /* (Note that the "contig" cache * information can be used by a chunked * dataset in certain circumstances) */ H5D_rdcc_t chunk; /* Information about chunked data */ } cache; H5D_append_flush_t append_flush; /* Append flush property information */ } H5D_shared_t; struct H5D_t { H5O_loc_t oloc; /* Object header location */ H5G_name_t path; /* Group hierarchy path */ H5D_shared_t *shared; /* cached information from file */ }; /* Enumerated type for allocating dataset's storage */ typedef enum { H5D_ALLOC_CREATE, /* Dataset is being created */ H5D_ALLOC_OPEN, /* Dataset is being opened */ H5D_ALLOC_EXTEND, /* Dataset's dataspace is being extended */ H5D_ALLOC_WRITE /* Dataset is being extended */ } H5D_time_alloc_t; /* Typedef for dataset creation operation */ typedef struct { hid_t type_id; /* Datatype for dataset */ const H5S_t *space; /* Dataspace for dataset */ hid_t dcpl_id; /* Dataset creation property list */ hid_t dapl_id; /* Dataset access property list */ } H5D_obj_create_t; /* Typedef for filling a buffer with a fill value */ typedef struct H5D_fill_buf_info_t { H5MM_allocate_t fill_alloc_func; /* Routine to call for allocating fill buffer */ void *fill_alloc_info; /* Extra info for allocation routine */ H5MM_free_t fill_free_func; /* Routine to call for freeing fill buffer */ void *fill_free_info; /* Extra info for free routine */ H5T_path_t *fill_to_mem_tpath; /* Datatype conversion path for converting the fill value to the memory buffer */ H5T_path_t *mem_to_dset_tpath; /* Datatype conversion path for converting the memory buffer to the dataset elements */ const H5O_fill_t *fill; /* Pointer to fill value */ void *fill_buf; /* Fill buffer */ size_t fill_buf_size; /* Size of fill buffer */ hbool_t use_caller_fill_buf; /* Whether the caller provided the fill buffer */ void *bkg_buf; /* Background conversion buffer */ size_t bkg_buf_size; /* Size of background buffer */ H5T_t *mem_type; /* Pointer to memory datatype */ const H5T_t *file_type; /* Pointer to file datatype */ hid_t mem_tid; /* ID for memory version of disk datatype */ hid_t file_tid; /* ID for disk datatype */ size_t mem_elmt_size, file_elmt_size; /* Size of element in memory and on disk */ size_t max_elmt_size; /* Max. size of memory or file datatype */ size_t elmts_per_buf; /* # of elements that fit into a buffer */ hbool_t has_vlen_fill_type; /* Whether the datatype for the fill value has a variable-length component */ } H5D_fill_buf_info_t; /* Internal data structure for computing variable-length dataset's total size */ typedef struct { H5D_t *dset; /* Dataset for operation */ H5S_t *fspace; /* Dataset's dataspace for operation */ H5S_t *mspace; /* Memory dataspace for operation */ void *fl_tbuf; /* Ptr to the temporary buffer we are using for fixed-length data */ void *vl_tbuf; /* Ptr to the temporary buffer we are using for VL data */ hid_t xfer_pid; /* ID of the dataset xfer property list */ hsize_t size; /* Accumulated number of bytes for the selection */ } H5D_vlen_bufsize_t; /* Flags for the "edge_chunk_state" field below */ #define H5D_RDCC_DISABLE_FILTERS 0x01u /* Disable filters on this chunk */ #define H5D_RDCC_NEWLY_DISABLED_FILTERS 0x02u /* Filters have been disabled since * the last flush */ /* Raw data chunks are cached. Each entry in the cache is: */ typedef struct H5D_rdcc_ent_t { hbool_t locked; /*entry is locked in cache */ hbool_t dirty; /*needs to be written to disk? */ hbool_t deleted; /*chunk about to be deleted */ unsigned edge_chunk_state; /*states related to edge chunks (see above) */ hsize_t scaled[H5O_LAYOUT_NDIMS]; /*scaled chunk 'name' (coordinates) */ uint32_t rd_count; /*bytes remaining to be read */ uint32_t wr_count; /*bytes remaining to be written */ H5F_block_t chunk_block; /*offset/length of chunk in file */ hsize_t chunk_idx; /*index of chunk in dataset */ uint8_t *chunk; /*the unfiltered chunk data */ unsigned idx; /*index in hash table */ struct H5D_rdcc_ent_t *next;/*next item in doubly-linked list */ struct H5D_rdcc_ent_t *prev;/*previous item in doubly-linked list */ struct H5D_rdcc_ent_t *tmp_next;/*next item in temporary doubly-linked list */ struct H5D_rdcc_ent_t *tmp_prev;/*previous item in temporary doubly-linked list */ } H5D_rdcc_ent_t; typedef H5D_rdcc_ent_t *H5D_rdcc_ent_ptr_t; /* For free lists */ /*****************************/ /* Package Private Variables */ /*****************************/ extern H5D_dxpl_cache_t H5D_def_dxpl_cache; /* Storage layout class I/O operations */ H5_DLLVAR const H5D_layout_ops_t H5D_LOPS_CONTIG[1]; H5_DLLVAR const H5D_layout_ops_t H5D_LOPS_EFL[1]; H5_DLLVAR const H5D_layout_ops_t H5D_LOPS_COMPACT[1]; H5_DLLVAR const H5D_layout_ops_t H5D_LOPS_CHUNK[1]; /* Chunked layout operations */ H5_DLLVAR const H5D_chunk_ops_t H5D_COPS_BTREE[1]; H5_DLLVAR const H5D_chunk_ops_t H5D_COPS_NONE[1]; H5_DLLVAR const H5D_chunk_ops_t H5D_COPS_EARRAY[1]; H5_DLLVAR const H5D_chunk_ops_t H5D_COPS_FARRAY[1]; H5_DLLVAR const H5D_chunk_ops_t H5D_COPS_BT2[1]; /* The v2 B-tree class for indexing chunked datasets with >1 unlimited dimensions */ H5_DLLVAR const H5B2_class_t H5D_BT2[1]; H5_DLLVAR const H5B2_class_t H5D_BT2_FILT[1]; /******************************/ /* Package Private Prototypes */ /******************************/ H5_DLL herr_t H5D__term_pub_interface(void); H5_DLL herr_t H5D__term_deprec_interface(void); H5_DLL H5D_t *H5D__create(H5F_t *file, hid_t type_id, const H5S_t *space, hid_t dcpl_id, hid_t dapl_id, hid_t dxpl_id); H5_DLL H5D_t *H5D__create_named(const H5G_loc_t *loc, const char *name, hid_t type_id, const H5S_t *space, hid_t lcpl_id, hid_t dcpl_id, hid_t dapl_id, hid_t dxpl_id); H5_DLL H5D_t *H5D__open_name(const H5G_loc_t *loc, const char *name, hid_t dapl_id, hid_t dxpl_id); H5_DLL herr_t H5D__get_space_status(H5D_t *dset, H5D_space_status_t *allocation, hid_t dxpl_id); H5_DLL herr_t H5D__alloc_storage(const H5D_t *dset, hid_t dxpl_id, H5D_time_alloc_t time_alloc, hbool_t full_overwrite, hsize_t old_dim[]); H5_DLL herr_t H5D__get_storage_size(H5D_t *dset, hid_t dxpl_id, hsize_t *storage_size); H5_DLL haddr_t H5D__get_offset(const H5D_t *dset); H5_DLL void *H5D__vlen_get_buf_size_alloc(size_t size, void *info); H5_DLL herr_t H5D__vlen_get_buf_size(void *elem, hid_t type_id, unsigned ndim, const hsize_t *point, void *op_data); H5_DLL herr_t H5D__check_filters(H5D_t *dataset); H5_DLL herr_t H5D__set_extent(H5D_t *dataset, const hsize_t *size, hid_t dxpl_id); H5_DLL herr_t H5D__get_dxpl_cache(hid_t dxpl_id, H5D_dxpl_cache_t **cache); H5_DLL herr_t H5D__flush_sieve_buf(H5D_t *dataset, hid_t dxpl_id); H5_DLL herr_t H5D__flush_real(H5D_t *dataset, hid_t dxpl_id); H5_DLL herr_t H5D__mark(const H5D_t *dataset, hid_t dxpl_id, unsigned flags); /* To convert a dataset's chunk indexing type to v1 B-tree */ H5_DLL herr_t H5D__format_convert(H5D_t *dataset, hid_t dxpl_id); /* Internal I/O routines */ H5_DLL herr_t H5D__read(H5D_t *dataset, hid_t mem_type_id, const H5S_t *mem_space, const H5S_t *file_space, hid_t dset_xfer_plist, void *buf/*out*/); /* Functions that perform direct serial I/O operations */ H5_DLL herr_t H5D__select_read(const H5D_io_info_t *io_info, const H5D_type_info_t *type_info, hsize_t nelmts, const H5S_t *file_space, const H5S_t *mem_space); H5_DLL herr_t H5D__select_write(const H5D_io_info_t *io_info, const H5D_type_info_t *type_info, hsize_t nelmts, const H5S_t *file_space, const H5S_t *mem_space); /* Functions that perform scatter-gather serial I/O operations */ H5_DLL herr_t H5D__scatter_mem(const void *_tscat_buf, const H5S_t *space, H5S_sel_iter_t *iter, size_t nelmts, const H5D_dxpl_cache_t *dxpl_cache, void *_buf); H5_DLL herr_t H5D__scatgath_read(const H5D_io_info_t *io_info, const H5D_type_info_t *type_info, hsize_t nelmts, const H5S_t *file_space, const H5S_t *mem_space); H5_DLL herr_t H5D__scatgath_write(const H5D_io_info_t *io_info, const H5D_type_info_t *type_info, hsize_t nelmts, const H5S_t *file_space, const H5S_t *mem_space); /* Functions that operate on dataset's layout information */ H5_DLL herr_t H5D__layout_set_io_ops(const H5D_t *dataset); H5_DLL size_t H5D__layout_meta_size(const H5F_t *f, const H5O_layout_t *layout, hbool_t include_compact_data); H5_DLL herr_t H5D__layout_set_latest_version(H5O_layout_t *layout, const H5S_t *space, const H5D_dcpl_cache_t *dcpl_cache); H5_DLL herr_t H5D__layout_set_latest_indexing(H5O_layout_t *layout, const H5S_t *space, const H5D_dcpl_cache_t *dcpl_cache); H5_DLL herr_t H5D__layout_oh_create(H5F_t *file, hid_t dxpl_id, H5O_t *oh, H5D_t *dset, hid_t dapl_id); H5_DLL herr_t H5D__layout_oh_read(H5D_t *dset, hid_t dxpl_id, hid_t dapl_id, H5P_genplist_t *plist); H5_DLL herr_t H5D__layout_oh_write(H5D_t *dataset, hid_t dxpl_id, H5O_t *oh, unsigned update_flags); /* Functions that operate on contiguous storage */ H5_DLL herr_t H5D__contig_alloc(H5F_t *f, hid_t dxpl_id, H5O_storage_contig_t *storage); H5_DLL hbool_t H5D__contig_is_space_alloc(const H5O_storage_t *storage); H5_DLL herr_t H5D__contig_fill(const H5D_t *dset, hid_t dxpl_id); H5_DLL herr_t H5D__contig_read(H5D_io_info_t *io_info, const H5D_type_info_t *type_info, hsize_t nelmts, const H5S_t *file_space, const H5S_t *mem_space, H5D_chunk_map_t *fm); H5_DLL herr_t H5D__contig_write(H5D_io_info_t *io_info, const H5D_type_info_t *type_info, hsize_t nelmts, const H5S_t *file_space, const H5S_t *mem_space, H5D_chunk_map_t *fm); H5_DLL herr_t H5D__contig_copy(H5F_t *f_src, const H5O_storage_contig_t *storage_src, H5F_t *f_dst, H5O_storage_contig_t *storage_dst, H5T_t *src_dtype, H5O_copy_t *cpy_info, hid_t dxpl_id); H5_DLL herr_t H5D__contig_delete(H5F_t *f, hid_t dxpl_id, const H5O_storage_t *store); /* Functions that operate on chunked dataset storage */ H5_DLL htri_t H5D__chunk_cacheable(const H5D_io_info_t *io_info, haddr_t caddr, hbool_t write_op); H5_DLL herr_t H5D__chunk_create(const H5D_t *dset /*in,out*/, hid_t dxpl_id); H5_DLL herr_t H5D__chunk_set_info(const H5D_t *dset); H5_DLL hbool_t H5D__chunk_is_space_alloc(const H5O_storage_t *storage); H5_DLL herr_t H5D__chunk_lookup(const H5D_t *dset, hid_t dxpl_id, const hsize_t *scaled, H5D_chunk_ud_t *udata); H5_DLL void *H5D__chunk_lock(const H5D_io_info_t *io_info, H5D_chunk_ud_t *udata, hbool_t relax, hbool_t prev_unfilt_chunk); H5_DLL herr_t H5D__chunk_unlock(const H5D_io_info_t *io_info, const H5D_chunk_ud_t *udata, hbool_t dirty, void *chunk, uint32_t naccessed); H5_DLL herr_t H5D__chunk_flush_entry(const H5D_t *dset, hid_t dxpl_id, const H5D_dxpl_cache_t *dxpl_cache, H5D_rdcc_ent_t *ent, hbool_t reset); H5_DLL herr_t H5D__chunk_allocated(H5D_t *dset, hid_t dxpl_id, hsize_t *nbytes); H5_DLL herr_t H5D__chunk_allocate(const H5D_t *dset, hid_t dxpl_id, hbool_t full_overwrite, hsize_t old_dim[]); H5_DLL herr_t H5D__chunk_update_old_edge_chunks(H5D_t *dset, hid_t dxpl_id, hsize_t old_dim[]); H5_DLL herr_t H5D__chunk_prune_by_extent(H5D_t *dset, hid_t dxpl_id, const hsize_t *old_dim); #ifdef H5_HAVE_PARALLEL H5_DLL herr_t H5D__chunk_addrmap(const H5D_io_info_t *io_info, haddr_t chunk_addr[]); #endif /* H5_HAVE_PARALLEL */ H5_DLL herr_t H5D__chunk_update_cache(H5D_t *dset, hid_t dxpl_id); H5_DLL herr_t H5D__chunk_copy(H5F_t *f_src, H5O_storage_chunk_t *storage_src, H5O_layout_chunk_t *layout_src, H5F_t *f_dst, H5O_storage_chunk_t *storage_dst, const H5S_extent_t *ds_extent_src, const H5T_t *dt_src, const H5O_pline_t *pline_src, H5O_copy_t *cpy_info, hid_t dxpl_id); H5_DLL herr_t H5D__chunk_bh_info(H5F_t *f, hid_t dxpl_id, H5O_layout_t *layout, const H5O_pline_t *pline, hsize_t *btree_size); H5_DLL herr_t H5D__chunk_dump_index(H5D_t *dset, hid_t dxpl_id, FILE *stream); H5_DLL herr_t H5D__chunk_delete(H5F_t *f, hid_t dxpl_id, H5O_t *oh, H5O_storage_t *store); H5_DLL herr_t H5D__chunk_create_flush_dep(const H5D_rdcc_t *rdcc, const H5O_layout_chunk_t *layout, const hsize_t offset[], void *parent); H5_DLL herr_t H5D__chunk_update_flush_dep(const H5D_rdcc_t *rdcc, const H5O_layout_chunk_t *layout, const hsize_t offset[], void *old_parent, void *new_parent); H5_DLL herr_t H5D__chunk_direct_write(const H5D_t *dset, hid_t dxpl_id, uint32_t filters, hsize_t *offset, uint32_t data_size, const void *buf); #ifdef H5D_CHUNK_DEBUG H5_DLL herr_t H5D__chunk_stats(const H5D_t *dset, hbool_t headers); #endif /* H5D_CHUNK_DEBUG */ /* format convert */ H5_DLL herr_t H5D__chunk_format_convert(H5D_t *dset, H5D_chk_idx_info_t *idx_info, H5D_chk_idx_info_t *new_idx_info); /* Functions that operate on compact dataset storage */ H5_DLL herr_t H5D__compact_fill(const H5D_t *dset, hid_t dxpl_id); H5_DLL herr_t H5D__compact_copy(H5F_t *f_src, H5O_storage_compact_t *storage_src, H5F_t *f_dst, H5O_storage_compact_t *storage_dst, H5T_t *src_dtype, H5O_copy_t *cpy_info, hid_t dxpl_id); /* Functions that operate on EFL (External File List)*/ H5_DLL hbool_t H5D__efl_is_space_alloc(const H5O_storage_t *storage); H5_DLL herr_t H5D__efl_bh_info(H5F_t *f, hid_t dxpl_id, H5O_efl_t *efl, hsize_t *heap_size); /* Functions that perform fill value operations on datasets */ H5_DLL herr_t H5D__fill(const void *fill, const H5T_t *fill_type, void *buf, const H5T_t *buf_type, const H5S_t *space, hid_t dxpl_id); H5_DLL herr_t H5D__fill_init(H5D_fill_buf_info_t *fb_info, void *caller_fill_buf, H5MM_allocate_t alloc_func, void *alloc_info, H5MM_free_t free_func, void *free_info, const H5O_fill_t *fill, const H5T_t *dset_type, hid_t dset_type_id, size_t nelmts, size_t min_buf_size, hid_t dxpl_id); H5_DLL herr_t H5D__fill_refill_vl(H5D_fill_buf_info_t *fb_info, size_t nelmts, hid_t dxpl_id); H5_DLL herr_t H5D__fill_term(H5D_fill_buf_info_t *fb_info); /* Functions that operate on chunk proxy objects */ H5_DLL herr_t H5D__chunk_proxy_create(H5D_t *dset, hid_t dxpl_id, H5D_chunk_ud_t *udata, H5D_rdcc_ent_t *ent); H5_DLL herr_t H5D__chunk_proxy_remove(const H5D_t *dset, hid_t dxpl_it, H5D_rdcc_ent_t *ent); H5_DLL herr_t H5D__chunk_proxy_mark(H5D_rdcc_ent_t *ent, hbool_t dirty); H5_DLL herr_t H5D__chunk_proxy_create_flush_dep(H5D_rdcc_ent_t *ent, void *parent); H5_DLL herr_t H5D__chunk_proxy_update_flush_dep(H5D_rdcc_ent_t *ent, void *old_parent, void *new_parent); #ifdef H5_HAVE_PARALLEL #ifdef H5S_DEBUG #ifndef H5Dmpio_DEBUG #define H5Dmpio_DEBUG #endif /*H5Dmpio_DEBUG*/ #endif/*H5S_DEBUG*/ /* MPI-IO function to read, it will select either regular or irregular read */ H5_DLL herr_t H5D__mpio_select_read(const H5D_io_info_t *io_info, const H5D_type_info_t *type_info, hsize_t nelmts, const H5S_t *file_space, const H5S_t *mem_space); /* MPI-IO function to write, it will select either regular or irregular read */ H5_DLL herr_t H5D__mpio_select_write(const H5D_io_info_t *io_info, const H5D_type_info_t *type_info, hsize_t nelmts, const H5S_t *file_space, const H5S_t *mem_space); /* MPI-IO functions to handle contiguous collective IO */ H5_DLL herr_t H5D__contig_collective_read(H5D_io_info_t *io_info, const H5D_type_info_t *type_info, hsize_t nelmts, const H5S_t *file_space, const H5S_t *mem_space, H5D_chunk_map_t *fm); H5_DLL herr_t H5D__contig_collective_write(H5D_io_info_t *io_info, const H5D_type_info_t *type_info, hsize_t nelmts, const H5S_t *file_space, const H5S_t *mem_space, H5D_chunk_map_t *fm); /* MPI-IO functions to handle chunked collective IO */ H5_DLL herr_t H5D__chunk_collective_read(H5D_io_info_t *io_info, const H5D_type_info_t *type_info, hsize_t nelmts, const H5S_t *file_space, const H5S_t *mem_space, H5D_chunk_map_t *fm); H5_DLL herr_t H5D__chunk_collective_write(H5D_io_info_t *io_info, const H5D_type_info_t *type_info, hsize_t nelmts, const H5S_t *file_space, const H5S_t *mem_space, H5D_chunk_map_t *fm); /* MPI-IO function to check if a direct I/O transfer is possible between * memory and the file */ H5_DLL htri_t H5D__mpio_opt_possible(const H5D_io_info_t *io_info, const H5S_t *file_space, const H5S_t *mem_space, const H5D_type_info_t *type_info, const H5D_chunk_map_t *fm, H5P_genplist_t *dx_plist); #endif /* H5_HAVE_PARALLEL */ /* Testing functions */ #ifdef H5D_TESTING H5_DLL herr_t H5D__layout_version_test(hid_t did, unsigned *version); H5_DLL herr_t H5D__layout_contig_size_test(hid_t did, hsize_t *size); H5_DLL herr_t H5D__layout_idx_type_test(hid_t did, H5D_chunk_index_t *idx_type); H5_DLL herr_t H5D__current_cache_size_test(hid_t did, size_t *nbytes_used, int *nused); #endif /* H5D_TESTING */ #endif /*_H5Dpkg_H*/