diff options
Diffstat (limited to 'src/H5Pdcpl.c')
| -rw-r--r-- | src/H5Pdcpl.c | 104 |
1 files changed, 104 insertions, 0 deletions
diff --git a/src/H5Pdcpl.c b/src/H5Pdcpl.c index a5a16bb..b85f105 100644 --- a/src/H5Pdcpl.c +++ b/src/H5Pdcpl.c @@ -117,6 +117,11 @@ #define H5D_CRT_EXT_FILE_LIST_COPY H5P__dcrt_ext_file_list_copy #define H5D_CRT_EXT_FILE_LIST_CMP H5P__dcrt_ext_file_list_cmp #define H5D_CRT_EXT_FILE_LIST_CLOSE H5P__dcrt_ext_file_list_close +/* Definitions for dataset object header minimization */ +#define H5D_CRT_MIN_DSET_HDR_SIZE_SIZE sizeof(hbool_t) +#define H5D_CRT_MIN_DSET_HDR_SIZE_DEF FALSE +#define H5D_CRT_MIN_DSET_HDR_SIZE_ENC H5P__encode_hbool_t +#define H5D_CRT_MIN_DSET_HDR_SIZE_DEC H5P__decode_hbool_t /******************/ @@ -209,6 +214,7 @@ static const H5O_layout_t H5D_def_layout_g = H5D_CRT_LAYOUT_DEF; /* Defau static const H5O_fill_t H5D_def_fill_g = H5D_CRT_FILL_VALUE_DEF; /* Default fill value */ static const unsigned H5D_def_alloc_time_state_g = H5D_CRT_ALLOC_TIME_STATE_DEF; /* Default allocation time state */ static const H5O_efl_t H5D_def_efl_g = H5D_CRT_EXT_FILE_LIST_DEF; /* Default external file list */ +static const unsigned H5O_ohdr_min_g = H5D_CRT_MIN_DSET_HDR_SIZE_DEF; /* Default object header minimization */ /* Defaults for each type of layout */ #ifdef H5_HAVE_C99_DESIGNATED_INITIALIZER @@ -271,6 +277,12 @@ H5P__dcrt_reg_prop(H5P_genclass_t *pclass) H5D_CRT_EXT_FILE_LIST_DEL, H5D_CRT_EXT_FILE_LIST_COPY, H5D_CRT_EXT_FILE_LIST_CMP, H5D_CRT_EXT_FILE_LIST_CLOSE) < 0) HGOTO_ERROR(H5E_PLIST, H5E_CANTINSERT, FAIL, "can't insert property into class") + /* Register the object header minimization property */ + if(H5P__register_real(pclass, H5D_CRT_MIN_DSET_HDR_SIZE_NAME, H5D_CRT_MIN_DSET_HDR_SIZE_SIZE, &H5O_ohdr_min_g, + NULL, NULL, NULL, H5D_CRT_MIN_DSET_HDR_SIZE_ENC, H5D_CRT_MIN_DSET_HDR_SIZE_DEC, + NULL, NULL, NULL, NULL) < 0) + HGOTO_ERROR(H5E_PLIST, H5E_CANTINSERT, FAIL, "can't insert property into class") + /* Register the type ID property*/ if(H5P__register_real(pclass, H5VL_PROP_DSET_TYPE_ID, sizeof(hid_t), &type_id, NULL, NULL, NULL, NULL, NULL, NULL, NULL, H5P_ignore_cmp, NULL) < 0) @@ -3749,3 +3761,95 @@ done: FUNC_LEAVE_API(ret_value) } /* end H5Pget_fill_time() */ + +/*----------------------------------------------------------------------------- + * Function: H5Pget_dset_no_attrs_hint + * + * Purpose: + * + * Access the flag for whether or not datasets created by the given dcpl + * will be created with a "minimized" object header. + * + * Return: + * + * Failure: Negative value (FAIL) + * Success: Non-negative value (SUCCEED) + * + * Programmer: Jacob Smith + * 2018 August 14 + * + * Modifications: None. + * + *----------------------------------------------------------------------------- + */ +herr_t +H5Pget_dset_no_attrs_hint(hid_t dcpl_id, hbool_t *minimize) +{ + hbool_t setting = FALSE; + H5P_genplist_t *plist = NULL; + herr_t ret_value = SUCCEED; + + FUNC_ENTER_API(FAIL) + H5TRACE2("e", "i*b", dcpl_id, minimize); + + if(NULL == minimize) + HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "receiving pointer cannot be NULL") + + plist = H5P_object_verify(dcpl_id, H5P_DATASET_CREATE); + if(NULL == plist) + HGOTO_ERROR(H5E_ATOM, H5E_BADATOM, FAIL, "can't find object for ID") + + if(H5P_peek(plist, H5D_CRT_MIN_DSET_HDR_SIZE_NAME, &setting) < 0) + HGOTO_ERROR(H5E_PLIST, H5E_CANTGET, FAIL, "can't get dset oh minimize flag value") + + *minimize = setting; + +done: + FUNC_LEAVE_API(ret_value) +} /* H5Pget_dset_no_attrs_hint() */ + + +/*----------------------------------------------------------------------------- + * Function: H5Pset_dset_no_attrs_hint + * + * Purpose: + * + * Set the dcpl to minimize (or explicitly to not minimized) dataset object + * headers upon creation. + * + * Return: + * + * Failure: Negative value (FAIL) + * Success: Non-negative value (SUCCEED) + * + * Programmer: Jacob Smith + * 2018 August 14 + * + * Modifications: None. + * + *----------------------------------------------------------------------------- + */ +herr_t +H5Pset_dset_no_attrs_hint(hid_t dcpl_id, hbool_t minimize) +{ + H5P_genplist_t *plist = NULL; + hbool_t prev_set = FALSE; + herr_t ret_value = SUCCEED; + + FUNC_ENTER_API(FAIL) + H5TRACE2("e", "ib", dcpl_id, minimize); + + plist = H5P_object_verify(dcpl_id, H5P_DATASET_CREATE); + if(NULL == plist) + HGOTO_ERROR(H5E_ATOM, H5E_BADATOM, FAIL, "can't find object for ID") + + if(H5P_peek(plist, H5D_CRT_MIN_DSET_HDR_SIZE_NAME, &prev_set) < 0) + HGOTO_ERROR(H5E_PLIST, H5E_CANTGET, FAIL, "can't get extant dset oh minimize flag value") + + if(H5P_poke(plist, H5D_CRT_MIN_DSET_HDR_SIZE_NAME, &minimize) < 0) + HGOTO_ERROR(H5E_PLIST, H5E_CANTSET, FAIL, "can't get dset oh minimize flag value") + +done: + FUNC_LEAVE_API(ret_value) +} /* H5Pset_dset_no_attrs_hint() */ + |