diff options
Diffstat (limited to 'src/H5Tpkg.h')
| -rw-r--r-- | src/H5Tpkg.h | 129 |
1 files changed, 82 insertions, 47 deletions
diff --git a/src/H5Tpkg.h b/src/H5Tpkg.h index 04e9451..9784abd 100644 --- a/src/H5Tpkg.h +++ b/src/H5Tpkg.h @@ -95,9 +95,14 @@ /* This version also encodes array types more efficiently */ #define H5O_DTYPE_VERSION_3 3 +/* This is the version that adds support for new reference types and prevents + * older versions of the library to attempt reading unknown types. + */ +#define H5O_DTYPE_VERSION_4 4 + /* The latest version of the format. Look through the 'encode helper' routine * and 'size' callback for places to change when updating this. */ -#define H5O_DTYPE_VERSION_LATEST H5O_DTYPE_VERSION_3 +#define H5O_DTYPE_VERSION_LATEST H5O_DTYPE_VERSION_4 /* Flags for visiting datatype */ @@ -175,37 +180,52 @@ struct H5T_path_t { H5T_cdata_t cdata; /*data for this function */ }; +/* Reference function pointers */ +typedef size_t (*H5T_ref_getsizefunc_t)(H5F_t *src_f, const void *src_buf, size_t src_size, H5F_t *dst_f, hbool_t *dst_copy); +typedef herr_t (*H5T_ref_readfunc_t)(H5F_t *src_f, const void *src_buf, size_t src_size, H5F_t *dst_f, void *dst_buf, size_t dst_size); +typedef herr_t (*H5T_ref_writefunc_t)(H5F_t *src_f, const void *src_buf, size_t src_size, H5R_type_t src_type, H5F_t *dst_f, void *dst_buf, size_t dst_size, void *bg_buf); + +typedef struct H5T_ref_class_t { + H5T_ref_getsizefunc_t getsize; /* get reference size (bytes) */ + H5T_ref_readfunc_t read; /* read reference into buffer */ + H5T_ref_writefunc_t write; /* write reference from buffer */ +} H5T_ref_class_t; + typedef struct H5T_atomic_t { - H5T_order_t order; /*byte order */ - size_t prec; /*precision in bits */ - size_t offset; /*bit position of lsb of value */ - H5T_pad_t lsb_pad;/*type of lsb padding */ - H5T_pad_t msb_pad;/*type of msb padding */ + H5T_order_t order; /* byte order */ + size_t prec; /* precision in bits */ + size_t offset; /* bit position of lsb of value */ + H5T_pad_t lsb_pad; /* type of lsb padding */ + H5T_pad_t msb_pad; /* type of msb padding */ union { - struct { - H5T_sign_t sign; /*type of integer sign */ - } i; /*integer; integer types */ - - struct { - size_t sign; /*bit position of sign bit */ - size_t epos; /*position of lsb of exponent */ - size_t esize; /*size of exponent in bits */ - uint64_t ebias; /*exponent bias */ - size_t mpos; /*position of lsb of mantissa */ - size_t msize; /*size of mantissa */ - H5T_norm_t norm; /*normalization */ - H5T_pad_t pad; /*type of padding for internal bits */ - } f; /*floating-point types */ - - struct { - H5T_cset_t cset; /*character set */ - H5T_str_t pad; /*space or null padding of extra bytes */ - } s; /*string types */ - - struct { - H5R_type_t rtype; /*type of reference stored */ - H5T_loc_t loc; /* Location of data in buffer */ - } r; /*reference types */ + struct { + H5T_sign_t sign; /* type of integer sign */ + } i; /* integer; integer types */ + + struct { + size_t sign; /* bit position of sign bit */ + size_t epos; /* position of lsb of exponent */ + size_t esize; /* size of exponent in bits */ + uint64_t ebias; /* exponent bias */ + size_t mpos; /* position of lsb of mantissa */ + size_t msize; /* size of mantissa */ + H5T_norm_t norm; /* normalization */ + H5T_pad_t pad; /* type of padding for internal bits */ + } f; /* floating-point types */ + + struct { + H5T_cset_t cset; /* character set */ + H5T_str_t pad; /* space or null padding of extra bytes */ + } s; /* string types */ + + struct { + H5R_type_t rtype; /* type of reference stored */ + unsigned version; /* version of encoded reference */ + hbool_t opaque; /* opaque reference type */ + H5T_loc_t loc; /* location of data in buffer */ + H5F_t *f; /* file pointer (if data is on disk) */ + const H5T_ref_class_t *cls; /* Pointer to ref class callbacks */ + } r; /* reference types */ } u; } H5T_atomic_t; @@ -239,18 +259,10 @@ typedef struct H5T_enum_t { unsigned nalloc; /*num entries allocated */ unsigned nmembs; /*number of members defined in enum */ H5T_sort_t sorted; /*how are members sorted? */ - uint8_t *value; /*array of values */ + void *value; /*array of values */ char **name; /*array of symbol names */ } H5T_enum_t; -/* VL function pointers */ -typedef ssize_t (*H5T_vlen_getlenfunc_t)(const void *vl_addr); -typedef void * (*H5T_vlen_getptrfunc_t)(void *vl_addr); -typedef htri_t (*H5T_vlen_isnullfunc_t)(const H5F_t *f, void *vl_addr); -typedef herr_t (*H5T_vlen_readfunc_t)(H5F_t *f, void *_vl, void *buf, size_t len); -typedef herr_t (*H5T_vlen_writefunc_t)(H5F_t *f, const H5T_vlen_alloc_info_t *vl_alloc_info, void *_vl, void *buf, void *_bg, size_t seq_len, size_t base_size); -typedef herr_t (*H5T_vlen_setnullfunc_t)(H5F_t *f, void *_vl, void *_bg); - /* VL types */ typedef enum { H5T_VLEN_BADTYPE = -1, /* invalid VL Type */ @@ -259,20 +271,35 @@ typedef enum { H5T_VLEN_MAXTYPE /* highest type (Invalid as true type) */ } H5T_vlen_type_t; +/* VL function pointers */ +typedef herr_t (*H5T_vlen_getlen_func_t)(H5F_t *f, const void *vl_addr, size_t *len); +typedef void * (*H5T_vlen_getptr_func_t)(void *vl_addr); +typedef herr_t (*H5T_vlen_isnull_func_t)(const H5F_t *f, void *vl_addr, hbool_t *isnull); +typedef herr_t (*H5T_vlen_setnull_func_t)(H5F_t *f, void *_vl, void *_bg); +typedef herr_t (*H5T_vlen_read_func_t)(H5F_t *f, void *_vl, void *buf, size_t len); +typedef herr_t (*H5T_vlen_write_func_t)(H5F_t *f, const H5T_vlen_alloc_info_t *vl_alloc_info, void *_vl, void *buf, void *_bg, size_t seq_len, size_t base_size); +typedef herr_t (*H5T_vlen_delete_func_t)(H5F_t *f, const void *_vl); + +/* VL datatype callbacks */ +typedef struct H5T_vlen_class_t { + H5T_vlen_getlen_func_t getlen; /* Function to get VL sequence size (in element units, not bytes) */ + H5T_vlen_getptr_func_t getptr; /* Function to get VL sequence pointer */ + H5T_vlen_isnull_func_t isnull; /* Function to check if VL value is NIL */ + H5T_vlen_setnull_func_t setnull;/* Function to set a VL value to NIL */ + H5T_vlen_read_func_t read; /* Function to read VL sequence into buffer */ + H5T_vlen_write_func_t write; /* Function to write VL sequence from buffer */ + H5T_vlen_delete_func_t del; /* Function to delete VL sequence */ +} H5T_vlen_class_t; + /* A VL datatype */ typedef struct H5T_vlen_t { H5T_vlen_type_t type; /* Type of VL data in buffer */ H5T_loc_t loc; /* Location of VL data in buffer */ - H5T_cset_t cset; /* For VL string. character set */ - H5T_str_t pad; /* For VL string. space or null padding of + H5T_cset_t cset; /* For VL string: character set */ + H5T_str_t pad; /* For VL string: space or null padding of * extra bytes */ H5F_t *f; /* File ID (if VL data is on disk) */ - H5T_vlen_getptrfunc_t getptr; /* Function to get VL sequence pointer */ - H5T_vlen_getlenfunc_t getlen; /* Function to get VL sequence size (in element units, not bytes) */ - H5T_vlen_isnullfunc_t isnull; /* Function to check if VL value is NIL */ - H5T_vlen_readfunc_t read; /* Function to read VL sequence into buffer */ - H5T_vlen_writefunc_t write; /* Function to write VL sequence from buffer */ - H5T_vlen_setnullfunc_t setnull; /* Function to set a VL value to NIL */ + const H5T_vlen_class_t *cls; /* Pointer to VL class callbacks */ } H5T_vlen_t; /* An opaque datatype */ @@ -320,6 +347,7 @@ struct H5T_t { H5T_shared_t *shared; /* all other information */ H5O_loc_t oloc; /* Object location, if the type is a named type */ H5G_name_t path; /* group hier. path if the type is a named type */ + H5VL_object_t *vol_obj; /* pointer to VOL object when working with committed datatypes */ }; /* The master list of soft conversion functions */ @@ -370,6 +398,7 @@ H5_DLLVAR size_t H5T_POINTER_COMP_ALIGN_g; H5_DLLVAR size_t H5T_HVL_COMP_ALIGN_g; H5_DLLVAR size_t H5T_HOBJREF_COMP_ALIGN_g; H5_DLLVAR size_t H5T_HDSETREGREF_COMP_ALIGN_g; +H5_DLLVAR size_t H5T_REF_COMP_ALIGN_g; /* * Alignment information for native types. A value of N indicates that the @@ -482,6 +511,9 @@ H5_DLL herr_t H5T__conv_vlen(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata, H5_DLL herr_t H5T__conv_array(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata, size_t nelmts, size_t buf_stride, size_t bkg_stride, void *buf, void *bkg); +H5_DLL herr_t H5T__conv_ref(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata, + size_t nelmts, size_t buf_stride, + size_t bkg_stride, void *buf, void *bkg); H5_DLL herr_t H5T__conv_i_i(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata, size_t nelmts, size_t buf_stride, size_t bkg_stride, void *_buf, void *bkg); @@ -1148,6 +1180,9 @@ H5_DLL H5T_t *H5T__array_create(H5T_t *base, unsigned ndims, const hsize_t dim[/ H5_DLL int H5T__get_array_ndims(const H5T_t *dt); H5_DLL int H5T__get_array_dims(const H5T_t *dt, hsize_t dims[]); +/* Reference functions */ +H5_DLL htri_t H5T__ref_set_loc(const H5T_t *dt, H5F_t *f, H5T_loc_t loc); + /* Compound functions */ H5_DLL herr_t H5T__insert(H5T_t *parent, const char *name, size_t offset, const H5T_t *member); |