diff options
Diffstat (limited to 'src/H5Oprivate.h')
| -rw-r--r-- | src/H5Oprivate.h | 80 |
1 files changed, 79 insertions, 1 deletions
diff --git a/src/H5Oprivate.h b/src/H5Oprivate.h index 6accb1e..c8e8ccd 100644 --- a/src/H5Oprivate.h +++ b/src/H5Oprivate.h @@ -38,6 +38,7 @@ #include "H5private.h" /* Generic Functions */ #include "H5ACprivate.h" /* Metadata cache */ #include "H5Fprivate.h" /* File access */ +#include "H5HGprivate.h" /* Global Heaps */ #include "H5SLprivate.h" /* Skip lists */ #include "H5Tprivate.h" /* Datatype functions */ #include "H5Zprivate.h" /* I/O pipeline filters */ @@ -376,7 +377,8 @@ typedef struct H5O_efl_t { * for larger chunk dimensions, stores chunk indices into their own * message (the "layout index" message), adds features for compact/dense * storage of elements and/or chunk records, adds features for abbreviating - * the storage used for partial chunks on boundaries, etc. + * the storage used for partial chunks on boundaries, adds the virtual + * layout type, etc. */ #define H5O_LAYOUT_VERSION_4 4 @@ -414,12 +416,88 @@ typedef struct H5O_storage_compact_t { void *buf; /* Buffer for compact dataset */ } H5O_storage_compact_t; +typedef struct H5O_storage_virtual_srcdset_t { + /* Stored */ + struct H5S_t *virtual_select; /* Selection in the virtual dataset that is mapped to source selection */ + + /* Not stored */ + char *file_name; /* Source file name used for virtual dataset mapping */ + char *dset_name; /* Source dataset name used for virtual dataset mapping */ + struct H5S_t *clipped_source_select; /* Clipped version of source_select */ + struct H5S_t *clipped_virtual_select; /* Clipped version of virtual_select */ + struct H5D_t *dset; /* Source dataset */ + hbool_t dset_exists; /* Whether the dataset exists (was opened successfully) */ + + /* Temporary - only used during I/O operation, NULL at all other times */ + struct H5S_t *projected_mem_space; /* Selection within mem_space for this mapping */ +} H5O_storage_virtual_srcdset_t; + +typedef struct H5O_storage_virtual_name_seg_t { + char *name_segment; /* String for this name segment */ + struct H5O_storage_virtual_name_seg_t *next; /* Next name segment */ +} H5O_storage_virtual_name_seg_t; + +typedef enum H5O_virtual_space_status_t { + H5O_VIRTUAL_STATUS_INVALID = 0, /* Space extent is invalid */ + H5O_VIRTUAL_STATUS_SEL_BOUNDS, /* Space extent set to bounds of selection */ + H5O_VIRTUAL_STATUS_USER, /* Space extent provided by application */ + H5O_VIRTUAL_STATUS_CORRECT /* Space extent matches dataset */ +} H5O_virtual_space_status_t; + +typedef struct H5O_storage_virtual_ent_t { + /* Stored */ + H5O_storage_virtual_srcdset_t source_dset; /* Information about the source dataset */ + char *source_file_name; /* Original (unparsed) source file name */ + char *source_dset_name; /* Original (unparsed) source dataset name */ + struct H5S_t *source_select; /* Selection in the source dataset for mapping */ + + /* Not stored */ + H5O_storage_virtual_srcdset_t *sub_dset; /* Array of sub-source dataset info structs */ + size_t sub_dset_nalloc; /* Number of slots allocated in sub_dset */ + size_t sub_dset_nused; /* Number of slots "used" in sub_dset - essentially the farthest sub dataset in the extent */ + size_t sub_dset_io_start; /* First element in sub_dset involved in current I/O op. Field has no meaning and may be uninitialized at all other times */ + size_t sub_dset_io_end; /* First element in sub_dset outside of current I/O op. Field has no meaning and may be uninitialized at all other times */ + H5O_storage_virtual_name_seg_t *parsed_source_file_name; /* Parsed version of source_dset.file_name */ + size_t psfn_static_strlen; /* Length of parsed_source_file_name without block number substitutions */ + size_t psfn_nsubs; /* Number of block number substitutions in parsed_source_file_name */ + H5O_storage_virtual_name_seg_t *parsed_source_dset_name; /* Parsed version of source_dset.dset_name */ + size_t psdn_static_strlen; /* Length of parsed_source_dset_name without block number substitutions */ + size_t psdn_nsubs; /* Number of block number substitutions in parsed_source_dset_name */ + int unlim_dim_source; /* Unlimited dimension in source_select */ + int unlim_dim_virtual; /* Unlimited dimension in virtual_select */ + hsize_t unlim_extent_source; /* Extent of unlimited dimension in source dset last time virtual_select was patched to match selection */ + hsize_t unlim_extent_virtual; /* Extent of unlimited dimension in virtual dset last time source_select was patched to match selection */ + hsize_t clip_size_virtual; /* Size selection would be clipped to in virtual selection, ignoring other mappings, when source extent == unlim_extent_source */ + hsize_t clip_size_source; /* Size selection would be clipped to in source selection when virtual extent == unlim_extent_virtual */ + H5O_virtual_space_status_t source_space_status; /* Extent patching status of source_select */ + H5O_virtual_space_status_t virtual_space_status; /* Extent patching status of virtual_select */ +} H5O_storage_virtual_ent_t; + +typedef struct H5O_storage_virtual_t { + /* Stored in message */ + H5HG_t serial_list_hobjid; /* Global heap ID for the list of virtual mapping entries stored on disk */ + + /* Stored in heap */ + size_t list_nused; /* Number of array elements used in list */ + H5O_storage_virtual_ent_t *list; /* Array of virtual dataset mapping entries */ + + /* Not stored */ + size_t list_nalloc; /* Number of slots allocated */ + hsize_t min_dims[H5S_MAX_RANK]; /* Minimum extent of VDS (maximum of all non-unlimited selection bounds) */ + H5D_vds_view_t view; /* Method for calculating the extent of the virtual dataset with unlimited selections */ + hsize_t printf_gap; /* Maximum number of sequential missing source datasets before terminating the search for more */ + hid_t source_fapl; /* FAPL to use to open source files */ + hid_t source_dapl; /* DAPL to use to open source datasets */ + hbool_t init; /* Whether all information has been completely initialized */ +} H5O_storage_virtual_t; + typedef struct H5O_storage_t { H5D_layout_t type; /* Type of layout */ union { H5O_storage_contig_t contig; /* Information for contiguous storage */ H5O_storage_chunk_t chunk; /* Information for chunked storage */ H5O_storage_compact_t compact; /* Information for compact storage */ + H5O_storage_virtual_t virt; /* Information for virtual storage */ } u; } H5O_storage_t; |