diff options
Diffstat (limited to 'src/H5Pocpl.c')
| -rw-r--r-- | src/H5Pocpl.c | 74 |
1 files changed, 72 insertions, 2 deletions
diff --git a/src/H5Pocpl.c b/src/H5Pocpl.c index a3f9212..fcde957 100644 --- a/src/H5Pocpl.c +++ b/src/H5Pocpl.c @@ -39,6 +39,8 @@ #include "H5Iprivate.h" /* IDs */ #include "H5Opkg.h" /* Object headers */ #include "H5Ppkg.h" /* Property lists */ +#include "H5PLprivate.h" /* Dynamic plugin */ +#include "H5Zprivate.h" /* Filter pipeline */ /****************/ @@ -79,6 +81,9 @@ static herr_t H5P__ocrt_close(hid_t dxpl_id, void *close_data); /* Property callbacks */ static int H5P__ocrt_pipeline_cmp(const void *value1, const void *value2, size_t size); +/* Local routines */ +static herr_t H5P__set_filter(H5P_genplist_t *plist, H5Z_filter_t filter, + unsigned int flags, size_t cd_nelmts, const unsigned int cd_values[/*cd_nelmts*/]); /*********************/ /* Package Variables */ @@ -744,6 +749,71 @@ H5Pset_filter(hid_t plist_id, H5Z_filter_t filter, unsigned int flags, if(NULL == (plist = H5P_object_verify(plist_id, H5P_OBJECT_CREATE))) HGOTO_ERROR(H5E_ATOM, H5E_BADATOM, FAIL, "can't find object for ID") + /* Call the private function */ + if(H5P__set_filter(plist, filter, flags, cd_nelmts, cd_values) < 0) + HGOTO_ERROR(H5E_PLIST, H5E_CANTSET, FAIL, "failed to call private function") + +done: + FUNC_LEAVE_API(ret_value) +} /* end H5Pset_filter() */ + + +/*------------------------------------------------------------------------- + * Function: H5P__set_filter + * + * Purpose: Adds the specified FILTER and corresponding properties to the + * end of the data or link output filter pipeline + * depending on whether PLIST is a dataset creation or group + * creation property list. The FLAGS argument specifies certain + * general properties of the filter and is documented below. + * The CD_VALUES is an array of CD_NELMTS integers which are + * auxiliary data for the filter. The integer vlues will be + * stored in the dataset object header as part of the filter + * information. + * + * The FLAGS argument is a bit vector of the following fields: + * + * H5Z_FLAG_OPTIONAL(0x0001) + * If this bit is set then the filter is optional. If the + * filter fails during an H5Dwrite() operation then the filter + * is just excluded from the pipeline for the chunk for which it + * failed; the filter will not participate in the pipeline + * during an H5Dread() of the chunk. If this bit is clear and + * the filter fails then the entire I/O operation fails. + * If this bit is set but encoding is disabled for a filter, + * attempting to write will generate an error. + * + * Return: Non-negative on success/Negative on failure + * + * Programmer: Robb Matzke + * Wednesday, April 15, 1998 + * + *------------------------------------------------------------------------- + */ +static herr_t +H5P__set_filter(H5P_genplist_t *plist, H5Z_filter_t filter, unsigned int flags, + size_t cd_nelmts, const unsigned int cd_values[/*cd_nelmts*/]) +{ + H5O_pline_t pline; /* Filter pipeline */ + htri_t filter_avail; /* Filter availability */ + herr_t ret_value = SUCCEED; /* Return value */ + + FUNC_ENTER_STATIC + + /* Check if filter is already available */ + if((filter_avail = H5Z_filter_avail(filter)) < 0) + HGOTO_ERROR(H5E_PLIST, H5E_CANTSET, FAIL, "can't check filter availability") + + /* If filter is not available, try to dynamically load it */ + if(!filter_avail) { + H5Z_class2_t *filter_info; + + if(NULL == (filter_info = (H5Z_class2_t *)H5PL_load(H5PL_TYPE_FILTER, (int)filter))) + HGOTO_ERROR(H5E_PLINE, H5E_CANTLOAD, FAIL, "failed to load dynamically loaded plugin") + if(H5Z_register(filter_info) < 0) + HGOTO_ERROR(H5E_PLINE, H5E_CANTINIT, FAIL, "unable to register filter") + } /* end if */ + /* Get the pipeline property to append to */ if(H5P_get(plist, H5O_CRT_PIPELINE_NAME, &pline) < 0) HGOTO_ERROR(H5E_PLIST, H5E_CANTGET, FAIL, "can't get pipeline") @@ -757,8 +827,8 @@ H5Pset_filter(hid_t plist_id, H5Z_filter_t filter, unsigned int flags, HGOTO_ERROR(H5E_PLIST, H5E_CANTSET, FAIL, "can't set pipeline") done: - FUNC_LEAVE_API(ret_value) -} /* end H5Pset_filter() */ + FUNC_LEAVE_NOAPI(ret_value) +} /* end H5P__set_filter() */ /*------------------------------------------------------------------------- |