/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * 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. * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ /*------------------------------------------------------------------------- * * Created: H5Oprivate.h * Aug 5 1997 * Robb Matzke * * Purpose: Object header private include file. * * Modifications: * *------------------------------------------------------------------------- */ #ifndef _H5Oprivate_H #define _H5Oprivate_H /* Include the public header file for this API */ #include "H5Opublic.h" /* Object header functions */ /* Public headers needed by this file */ #include "H5Dpublic.h" /* Dataset functions */ #include "H5Lpublic.h" /* Link functions */ #include "H5Spublic.h" /* Dataspace functions */ /* Private headers needed by this file */ #include "H5Fprivate.h" /* File access */ #include "H5SLprivate.h" /* Skip lists */ #include "H5Tprivate.h" /* Datatype functions */ #include "H5Zprivate.h" /* I/O pipeline filters */ /* Forward references of package typedefs */ typedef struct H5O_msg_class_t H5O_msg_class_t; typedef struct H5O_t H5O_t; /* Values used to create the shared message & attribute heaps */ /* (Note that these parameters have been tuned so that the resulting heap ID * is exactly 8 bytes. This is an efficient size as it can be stored * directly in an 8 byte integer in memory, think carefully before changing it. * -QAK) */ #define H5O_FHEAP_MAN_WIDTH 4 #define H5O_FHEAP_MAN_START_BLOCK_SIZE 1024 #define H5O_FHEAP_MAN_MAX_DIRECT_SIZE (64 * 1024) #define H5O_FHEAP_MAN_MAX_INDEX 40 #define H5O_FHEAP_MAN_START_ROOT_ROWS 1 #define H5O_FHEAP_CHECKSUM_DBLOCKS TRUE #define H5O_FHEAP_MAX_MAN_SIZE (4 * 1024) #define H5O_FHEAP_ID_LEN 8 /* Object header macros */ #define H5O_MESG_MAX_SIZE 65536 /*max obj header message size */ #define H5O_ALL (-1) /* Operate on all messages of type */ #define H5O_FIRST (-2) /* Operate on first message of type */ /* Flags needed when encoding messages */ #define H5O_MSG_FLAG_CONSTANT 0x01u #define H5O_MSG_FLAG_SHARED 0x02u #define H5O_MSG_FLAG_DONTSHARE 0x04u #define H5O_MSG_FLAG_FAIL_IF_UNKNOWN 0x08u #define H5O_MSG_FLAG_CURRENT 0x10u #define H5O_MSG_FLAG_BITS (H5O_MSG_FLAG_CONSTANT|H5O_MSG_FLAG_SHARED|H5O_MSG_FLAG_DONTSHARE) /* Flags for updating messages */ #define H5O_UPDATE_TIME 0x01u /* Hash value constants */ #define H5O_HASH_SIZE 32 /* ========= Object Creation properties ============ */ #define H5O_CRT_ATTR_MAX_COMPACT_NAME "max compact attr" /* Max. # of attributes to store compactly */ #define H5O_CRT_ATTR_MIN_DENSE_NAME "min dense attr" /* Min. # of attributes to store densely */ #define H5O_CRT_OHDR_FLAGS_NAME "object header flags" /* Object header flags */ /* ========= Object Copy properties ============ */ #define H5O_CPY_OPTION_NAME "copy object" /* Copy options */ /* Fractal heap ID type for shared message & attribute heap IDs. */ typedef uint64_t H5O_fheap_id_t; /* The object location information for an object */ typedef struct H5O_loc_t { H5F_t *file; /* File that object header is located within */ haddr_t addr; /* File address of object header */ hbool_t holding_file; /* True if this object header has incremented * its file's count of open objects. */ } H5O_loc_t; /* Settings/flags for copying an object */ typedef struct H5O_copy_t { hbool_t copy_shallow; /* Flag to perform shallow hierarchy copy */ hbool_t expand_soft_link; /* Flag to expand soft links */ hbool_t expand_ext_link; /* Flag to expand external links */ hbool_t expand_ref; /* Flag to expand object references */ hbool_t copy_without_attr; /* Flag to not copy attributes */ hbool_t preserve_null; /* Flag to not delete NULL messages */ int curr_depth; /* Current depth in hierarchy copied */ int max_depth; /* Maximum depth in hierarchy to copy */ H5SL_t *map_list; /* Skip list to hold address mappings */ } H5O_copy_t; /* Header message IDs */ #define H5O_NULL_ID 0x0000 /* Null Message. */ #define H5O_SDSPACE_ID 0x0001 /* Dataspace Message. */ #define H5O_LINFO_ID 0x0002 /* Link info Message. */ #define H5O_DTYPE_ID 0x0003 /* Datatype Message. */ #define H5O_FILL_ID 0x0004 /* Fill Value Message. (Old) */ #define H5O_FILL_NEW_ID 0x0005 /* Fill Value Message. (New) */ #define H5O_LINK_ID 0x0006 /* Link Message. */ #define H5O_EFL_ID 0x0007 /* External File List Message */ #define H5O_LAYOUT_ID 0x0008 /* Data Storage Layout Message. */ #define H5O_BOGUS_ID 0x0009 /* "Bogus" Message. */ #define H5O_GINFO_ID 0x000a /* Group info Message. */ #define H5O_PLINE_ID 0x000b /* Filter pipeline message. */ #define H5O_ATTR_ID 0x000c /* Attribute Message. */ #define H5O_NAME_ID 0x000d /* Object name message. */ #define H5O_MTIME_ID 0x000e /* Modification time message. (Old) */ #define H5O_SHMESG_ID 0x000f /* Shared message "SOHM" table. */ #define H5O_CONT_ID 0x0010 /* Object header continuation message. */ #define H5O_STAB_ID 0x0011 /* Symbol table message. */ #define H5O_MTIME_NEW_ID 0x0012 /* Modification time message. (New) */ #define H5O_BTREEK_ID 0x0013 /* v1 B-tree 'K' values message. */ #define H5O_DRVINFO_ID 0x0014 /* Driver info message. */ #define H5O_AINFO_ID 0x0015 /* Attribute info message. */ /* Shared object message flags. * Shared objects can be committed, in which case the shared message contains * the location of the object header that holds the message, or shared in the * heap, in which case the shared message holds their heap ID. */ #define H5O_NOT_SHARED 0 #define H5O_SHARED_IN_HEAP_FLAG 0x01 #define H5O_COMMITTED_FLAG 0x02 #define H5O_IS_SHARED(F) (((F) & (H5O_SHARED_IN_HEAP_FLAG | H5O_COMMITTED_FLAG)) ? TRUE : FALSE) /* * Shared object header message info. * This needs to go first because other messages can be shared and * include a H5O_shared_t struct * The oloc shouldn't ever be holding open a file; if it ever is (if * H5O_loc_hold_file was ever called on it) it won't be closed properly, * since shared messages don't close their olocs. */ typedef struct H5O_shared_t { unsigned flags; /* flags describing how message is shared */ union { H5O_loc_t oloc; /* object location info */ H5O_fheap_id_t heap_id; /* ID within the SOHM heap */ } u; } H5O_shared_t; /* * Link Info Message. * (Contains dynamic information about links in a group) * (Data structure in memory) * (if the fields in this struct are changed, remember to change the default * link info structure in src/H5Gprivate.h - QAK) * (if the fields in this struct are changed, also look at the code that * creates intermediate groups in src/H5Gtraverse.c - QAK) * (The "max. creation order" field is signed so that we might have an easy * way to add links to the front of the creation ordering (with negative * values) as well as the end of the creation ordering - QAK) */ typedef struct H5O_linfo_t { /* (creation order info) */ hbool_t track_corder; /* Are creation order values tracked on links? */ hbool_t index_corder; /* Are creation order values indexed on links? */ int64_t max_corder; /* Current max. creation order value for group */ haddr_t corder_bt2_addr; /* Address of v2 B-tree for indexing creation order values of links */ /* (storage management info) */ hsize_t nlinks; /* Number of links in the group */ haddr_t link_fheap_addr; /* Address of fractal heap for storing "dense" links */ haddr_t name_bt2_addr; /* Address of v2 B-tree for indexing names of links */ } H5O_linfo_t; /* * New Fill Value Message. * (Data structure in memory for both "old" and "new" fill value messages) * * The new fill value message is fill value plus * space allocation time, fill value writing time, whether fill * value is defined, and the location of the message if it's shared */ typedef struct H5O_fill_t { H5O_shared_t sh_loc; /* Shared message info (must be first) */ H5T_t *type; /*type. Null implies same as dataset */ ssize_t size; /*number of bytes in the fill value */ void *buf; /*the fill value */ H5D_alloc_time_t alloc_time; /* time to allocate space */ H5D_fill_time_t fill_time; /* time to write fill value */ hbool_t fill_defined; /* whether fill value is defined */ } H5O_fill_t; /* * Link message. * (Data structure in memory) */ typedef struct H5O_link_hard_t { haddr_t addr; /* Object header address */ } H5O_link_hard_t; typedef struct H5O_link_soft_t { char *name; /* Destination name */ } H5O_link_soft_t; typedef struct H5O_link_ud_t { void *udata; /* Opaque data supplied by the user */ size_t size; /* Size of udata */ } H5O_link_ud_t; typedef struct H5O_link_t { H5L_type_t type; /* Type of link */ hbool_t corder_valid; /* Creation order for link is valid (not stored) */ int64_t corder; /* Creation order for link (stored if it's valid) */ H5T_cset_t cset; /* Character set of link name */ char *name; /* Link name */ union { H5O_link_hard_t hard; /* Information for hard links */ H5O_link_soft_t soft; /* Information for soft links */ H5O_link_ud_t ud; /* Information for user-defined links */ } u; } H5O_link_t; /* * External File List Message * (Data structure in memory) */ #define H5O_EFL_ALLOC 16 /*number of slots to alloc at once */ #define H5O_EFL_UNLIMITED H5F_UNLIMITED /*max possible file size */ typedef struct H5O_efl_entry_t { size_t name_offset; /*offset of name within heap */ char *name; /*malloc'd name */ off_t offset; /*offset of data within file */ hsize_t size; /*size allocated within file */ } H5O_efl_entry_t; typedef struct H5O_efl_t { haddr_t heap_addr; /*address of name heap */ size_t nalloc; /*number of slots allocated */ size_t nused; /*number of slots used */ H5O_efl_entry_t *slot; /*array of external file entries */ } H5O_efl_t; /* * Data Layout Message. * (Data structure in memory) */ #define H5O_LAYOUT_NDIMS (H5S_MAX_RANK+1) typedef struct H5O_layout_contig_t { haddr_t addr; /* File address of data */ hsize_t size; /* Size of data in bytes */ } H5O_layout_contig_t; typedef struct H5O_layout_chunk_t { haddr_t addr; /* File address of B-tree */ unsigned ndims; /* Num dimensions in chunk */ size_t dim[H5O_LAYOUT_NDIMS]; /* Size of chunk in elements */ size_t size; /* Size of chunk in bytes */ H5RC_t *btree_shared; /* Ref-counted info for B-tree nodes */ } H5O_layout_chunk_t; typedef struct H5O_layout_compact_t { hbool_t dirty; /* Dirty flag for compact dataset */ size_t size; /* Size of buffer in bytes */ void *buf; /* Buffer for compact dataset */ } H5O_layout_compact_t; typedef struct H5O_layout_t { H5D_layout_t type; /* Type of layout */ unsigned version; /* Version of message */ union { H5O_layout_contig_t contig; /* Information for contiguous layout */ H5O_layout_chunk_t chunk; /* Information for chunked layout */ H5O_layout_compact_t compact; /* Information for compact layout */ } u; } H5O_layout_t; /* Enable reading/writing "bogus" messages */ /* #define H5O_ENABLE_BOGUS */ #ifdef H5O_ENABLE_BOGUS /* * "Bogus" Message. * (Data structure in memory) */ #define H5O_BOGUS_VALUE 0xdeadbeef typedef struct H5O_bogus_t { unsigned u; /* Hold the bogus info */ } H5O_bogus_t; #endif /* H5O_ENABLE_BOGUS */ /* * Group info message. * (Contains constant information about a group) * (Data structure in memory) * (if the fields in this struct are changed, remember to change the default * group info structure in src/H5Gprivate.h - QAK) */ typedef struct H5O_ginfo_t { /* "Old" format group info (not stored) */ uint32_t lheap_size_hint; /* Local heap size hint */ /* "New" format group info (stored) */ /* (storage management info) */ uint16_t max_compact; /* Maximum # of compact links */ uint16_t min_dense; /* Minimum # of "dense" links */ /* (initial object header size info) */ uint16_t est_num_entries; /* Estimated # of entries in group */ uint16_t est_name_len; /* Estimated length of entry name */ } H5O_ginfo_t; /* * Filter pipeline message. * (Data structure in memory) */ typedef struct H5O_pline_t { H5O_shared_t sh_loc; /* Shared message info (must be first) */ size_t nalloc; /*num elements in `filter' array */ size_t nused; /*num filters defined */ H5Z_filter_info_t *filter; /*array of filters */ } H5O_pline_t; /* * Object name message. * (Data structure in memory) */ typedef struct H5O_name_t { char *s; /*ptr to malloc'd memory */ } H5O_name_t; /* * Object header continuation message. * (Data structure in memory) */ typedef struct H5O_cont_t { haddr_t addr; /*address of continuation block */ size_t size; /*size of continuation block */ /* the following field(s) do not appear on disk */ unsigned chunkno; /*chunk this mesg refers to */ } H5O_cont_t; /* * Symbol table message. * (Data structure in memory) */ typedef struct H5O_stab_t { haddr_t btree_addr; /*address of B-tree */ haddr_t heap_addr; /*address of name heap */ } H5O_stab_t; /* * Shared message table message * Information about file-wide shared message table, stored in superblock * extension * (Data structure in memory) */ typedef struct H5O_shmesg_table_t { haddr_t addr; /*file address of SOHM table */ unsigned version; /*SOHM table version number */ unsigned nindexes; /*number of indexes in the table */ } H5O_shmesg_table_t; /* * v1 B-tree 'K' value message * Information about file-wide non-default v1 B-tree 'K' values, stored in * superblock extension * (Data structure in memory) */ typedef struct H5O_btreek_t { unsigned btree_k[H5B_NUM_BTREE_ID]; /* B-tree internal node 'K' values */ unsigned sym_leaf_k; /* Symbol table leaf node's 'K' value */ } H5O_btreek_t; /* * Driver info message * Information about driver info, stored in superblock extension * (Data structure in memory) */ typedef struct H5O_drvinfo_t { char name[9]; /* Driver name */ size_t len; /* Length of encoded buffer */ uint8_t *buf; /* Buffer for encoded info */ } H5O_drvinfo_t; /* * Attribute Info Message. * (Contains dynamic information about attributes on an object) * (Data structure in memory) */ typedef struct H5O_ainfo_t { /* (creation order info) */ hbool_t track_corder; /* Are creation order values tracked on attributes? */ hbool_t index_corder; /* Are creation order values indexed on attributes? */ H5O_msg_crt_idx_t max_crt_idx; /* Maximum attribute creation index used */ haddr_t corder_bt2_addr; /* Address of v2 B-tree for indexing creation order values of "dense" attributes */ /* (storage management info) */ hsize_t nattrs; /* Number of attributes on the object */ haddr_t fheap_addr; /* Address of fractal heap for storing "dense" attributes */ haddr_t name_bt2_addr; /* Address of v2 B-tree for indexing names of "dense" attributes */ } H5O_ainfo_t; /* Typedef for iteration operations */ typedef herr_t (*H5O_operator_t)(const void *mesg/*in*/, unsigned idx, void *operator_data/*in,out*/); /* Forward declarations for prototype arguments */ struct H5P_genplist_t; /* Object header routines */ H5_DLL herr_t H5O_init(void); H5_DLL herr_t H5O_create(H5F_t *f, hid_t dxpl_id, size_t size_hint, hid_t ocpl_id, H5O_loc_t *loc/*out*/); H5_DLL herr_t H5O_open(const H5O_loc_t *loc); H5_DLL herr_t H5O_close(H5O_loc_t *loc); H5_DLL int H5O_link(const H5O_loc_t *loc, int adjust, hid_t dxpl_id); H5_DLL struct H5O_t *H5O_protect(H5O_loc_t *loc, hid_t dxpl_id); H5_DLL herr_t H5O_unprotect(H5O_loc_t *loc, struct H5O_t *oh); H5_DLL herr_t H5O_touch(H5O_loc_t *loc, hbool_t force, hid_t dxpl_id); H5_DLL herr_t H5O_touch_oh(H5F_t *f, hid_t dxpl_id, struct H5O_t *oh, hbool_t force); #ifdef H5O_ENABLE_BOGUS H5_DLL herr_t H5O_bogus(H5O_loc_t *loc, hid_t dxpl_id); H5_DLL herr_t H5O_bogus_oh(H5F_t *f, hid_t dxpl_id, struct H5O_t *oh); #endif /* H5O_ENABLE_BOGUS */ H5_DLL herr_t H5O_delete(H5F_t *f, hid_t dxpl_id, haddr_t addr); H5_DLL herr_t H5O_get_info(H5O_loc_t *oloc, H5O_info_t *oinfo, hid_t dxpl_id); H5_DLL herr_t H5O_obj_type(const H5O_loc_t *loc, H5O_type_t *obj_type, hid_t dxpl_id); H5_DLL herr_t H5O_get_create_plist(const H5O_loc_t *loc, hid_t dxpl_id, struct H5P_genplist_t *oc_plist); H5_DLL hid_t H5O_open_name(H5G_loc_t *loc, const char *name, hid_t lapl_id); /* Object header message routines */ H5_DLL herr_t H5O_msg_create(const H5O_loc_t *loc, unsigned type_id, unsigned mesg_flags, unsigned update_flags, void *mesg, hid_t dxpl_id); H5_DLL herr_t H5O_msg_append(H5F_t *f, hid_t dxpl_id, struct H5O_t *oh, unsigned type_id, unsigned mesg_flags, unsigned update_flags, void *mesg); H5_DLL herr_t H5O_msg_write(const H5O_loc_t *loc, unsigned type_id, unsigned flags, unsigned update_flags, void *mesg, hid_t dxpl_id); H5_DLL void *H5O_msg_read(const H5O_loc_t *loc, unsigned type_id, void *mesg, hid_t dxpl_id); H5_DLL herr_t H5O_msg_reset(unsigned type_id, void *native); H5_DLL void *H5O_msg_free(unsigned type_id, void *mesg); H5_DLL void *H5O_msg_copy(unsigned type_id, const void *mesg, void *dst); H5_DLL int H5O_msg_count(const H5O_loc_t *loc, unsigned type_id, hid_t dxpl_id); H5_DLL htri_t H5O_msg_exists(H5O_loc_t *loc, unsigned type_id, hid_t dxpl_id); H5_DLL herr_t H5O_msg_remove(H5O_loc_t *loc, unsigned type_id, int sequence, hbool_t adj_link, hid_t dxpl_id); H5_DLL herr_t H5O_msg_remove_op(const H5O_loc_t *loc, unsigned type_id, int sequence, H5O_operator_t op, void *op_data, hbool_t adj_link, hid_t dxpl_id); H5_DLL herr_t H5O_msg_iterate(const H5O_loc_t *loc, unsigned type_id, H5O_operator_t op, void *op_data, hid_t dxpl_id); H5_DLL size_t H5O_msg_raw_size(const H5F_t *f, unsigned type_id, hbool_t disable_shared, const void *mesg); H5_DLL size_t H5O_msg_size_f(const H5F_t *f, hid_t ocpl_id, unsigned type_id, const void *mesg, size_t extra_raw); H5_DLL size_t H5O_msg_size_oh(const H5F_t *f, const H5O_t *oh, unsigned type_id, const void *mesg, size_t extra_raw); H5_DLL htri_t H5O_msg_is_shared(unsigned type_id, const void *mesg); H5_DLL htri_t H5O_msg_can_share(unsigned type_id, const void *mesg); H5_DLL herr_t H5O_msg_set_share(unsigned type_id, H5O_shared_t *share, void *mesg); H5_DLL herr_t H5O_msg_reset_share(unsigned type_id, void *mesg); H5_DLL herr_t H5O_msg_encode(H5F_t *f, unsigned type_id, hbool_t disable_shared, unsigned char *buf, const void *obj); H5_DLL void* H5O_msg_decode(H5F_t *f, hid_t dxpl_id, unsigned type_id, const unsigned char *buf); H5_DLL herr_t H5O_msg_delete(H5F_t *f, hid_t dxpl_id, unsigned type_id, const void *mesg); /* Object copying routines */ H5_DLL herr_t H5O_copy_header_map(const H5O_loc_t *oloc_src, H5O_loc_t *oloc_dst /*out */, hid_t dxpl_id, H5O_copy_t *cpy_info, hbool_t inc_depth); H5_DLL herr_t H5O_copy_expand_ref(H5F_t *file_src, void *_src_ref, hid_t dxpl_id, H5F_t *file_dst, void *_dst_ref, size_t ref_count, H5R_type_t ref_type, H5O_copy_t *cpy_info); /* Debugging routines */ H5_DLL herr_t H5O_debug_id(unsigned type_id, H5F_t *f, hid_t dxpl_id, const void *mesg, FILE *stream, int indent, int fwidth); H5_DLL herr_t H5O_debug(H5F_t *f, hid_t dxpl_id, haddr_t addr, FILE * stream, int indent, int fwidth); /* These functions operate on object locations */ H5_DLL herr_t H5O_loc_reset(H5O_loc_t *loc); H5_DLL herr_t H5O_loc_copy(H5O_loc_t *dst, const H5O_loc_t *src, H5_copy_depth_t depth); H5_DLL herr_t H5O_loc_hold_file(H5O_loc_t *loc); H5_DLL herr_t H5O_loc_free(H5O_loc_t *loc); /* Layout operators */ H5_DLL size_t H5O_layout_meta_size(const H5F_t *f, const void *_mesg); /* EFL operators */ H5_DLL hsize_t H5O_efl_total_size(H5O_efl_t *efl); /* Fill value operators */ H5_DLL herr_t H5O_fill_reset_dyn(H5O_fill_t *fill); H5_DLL herr_t H5O_fill_convert(H5O_fill_t *fill, H5T_t *type, hbool_t *fill_changed, hid_t dxpl_id); /* Link operators */ H5_DLL herr_t H5O_link_delete(H5F_t *f, hid_t dxpl_id, const void *_mesg); /* Shared message operators */ H5_DLL herr_t H5O_shared_copy(void *dst, const H5O_shared_t *src); /* Attribute operators */ H5_DLL hsize_t H5O_attr_count_real(H5F_t *f, hid_t dxpl_id, H5O_t *oh); #endif /* _H5Oprivate_H */