diff options
Diffstat (limited to 'src/H5VLcallback.c')
| -rw-r--r-- | src/H5VLcallback.c | 106 |
1 files changed, 87 insertions, 19 deletions
diff --git a/src/H5VLcallback.c b/src/H5VLcallback.c index 02e2399..77df207 100644 --- a/src/H5VLcallback.c +++ b/src/H5VLcallback.c @@ -82,10 +82,10 @@ static void *H5VL__dataset_open(void *obj, const H5VL_loc_params_t *loc_params, const H5VL_class_t *cls, const char *name, hid_t dapl_id, hid_t dxpl_id, void **req); static herr_t H5VL__dataset_read(void *dset, const H5VL_class_t *cls, - hid_t mem_type_id, hid_t mem_space_id, hid_t file_space_id, hid_t plist_id, + hid_t mem_type_id, hid_t mem_space_id, hid_t file_space_id, hid_t dxpl_id, void *buf, void **req); static herr_t H5VL__dataset_write(void *obj, const H5VL_class_t *cls, - hid_t mem_type_id, hid_t mem_space_id, hid_t file_space_id, hid_t plist_id, + hid_t mem_type_id, hid_t mem_space_id, hid_t file_space_id, hid_t dxpl_id, const void *buf, void **req); static herr_t H5VL__dataset_get(void *obj, const H5VL_class_t *cls, H5VL_dataset_get_t get_type, hid_t dxpl_id, void **req, va_list arguments); @@ -101,6 +101,8 @@ static void * H5VL__file_open(const H5VL_class_t *cls, const char *name, unsigned flags, hid_t fapl_id, hid_t dxpl_id, void **req); static herr_t H5VL__file_get(void *obj, const H5VL_class_t *cls, H5VL_file_get_t get_type, hid_t dxpl_id, void **req, va_list arguments); +static herr_t H5VL__file_specific_wrap_va_list(void *obj, const H5VL_class_t *cls, + H5VL_file_specific_t specific_type, hid_t dxpl_id, void **req, ...); static herr_t H5VL__file_specific(void *obj, const H5VL_class_t *cls, H5VL_file_specific_t specific_type, hid_t dxpl_id, void **req, va_list arguments); static herr_t H5VL__file_optional(void *obj, const H5VL_class_t *cls, hid_t dxpl_id, @@ -2013,7 +2015,7 @@ done: */ static herr_t H5VL__dataset_read(void *obj, const H5VL_class_t *cls, hid_t mem_type_id, - hid_t mem_space_id, hid_t file_space_id, hid_t plist_id, void *buf, + hid_t mem_space_id, hid_t file_space_id, hid_t dxpl_id, void *buf, void **req) { herr_t ret_value = SUCCEED; /* Return value */ @@ -2025,7 +2027,7 @@ H5VL__dataset_read(void *obj, const H5VL_class_t *cls, hid_t mem_type_id, HGOTO_ERROR(H5E_VOL, H5E_UNSUPPORTED, FAIL, "VOL connector has no 'dataset read' method") /* Call the corresponding VOL callback */ - if((cls->dataset_cls.read)(obj, mem_type_id, mem_space_id, file_space_id, plist_id, buf, req) < 0) + if((cls->dataset_cls.read)(obj, mem_type_id, mem_space_id, file_space_id, dxpl_id, buf, req) < 0) HGOTO_ERROR(H5E_VOL, H5E_READERROR, FAIL, "dataset read failed") done: @@ -2045,7 +2047,7 @@ done: */ herr_t H5VL_dataset_read(const H5VL_object_t *vol_obj, hid_t mem_type_id, - hid_t mem_space_id, hid_t file_space_id, hid_t plist_id, void *buf, + hid_t mem_space_id, hid_t file_space_id, hid_t dxpl_id, void *buf, void **req) { hbool_t vol_wrapper_set = FALSE; /* Whether the VOL object wrapping context was set up */ @@ -2059,7 +2061,7 @@ H5VL_dataset_read(const H5VL_object_t *vol_obj, hid_t mem_type_id, vol_wrapper_set = TRUE; /* Call the corresponding internal VOL routine */ - if(H5VL__dataset_read(vol_obj->data, vol_obj->connector->cls, mem_type_id, mem_space_id, file_space_id, plist_id, buf, req) < 0) + if(H5VL__dataset_read(vol_obj->data, vol_obj->connector->cls, mem_type_id, mem_space_id, file_space_id, dxpl_id, buf, req) < 0) HGOTO_ERROR(H5E_VOL, H5E_READERROR, FAIL, "dataset read failed") done: @@ -2083,14 +2085,14 @@ done: */ herr_t H5VLdataset_read(void *obj, hid_t connector_id, hid_t mem_type_id, hid_t mem_space_id, - hid_t file_space_id, hid_t plist_id, void *buf, void **req) + hid_t file_space_id, hid_t dxpl_id, void *buf, void **req) { H5VL_class_t *cls; /* VOL connector's class struct */ herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_API_NOINIT H5TRACE8("e", "*xiiiii*x**x", obj, connector_id, mem_type_id, mem_space_id, - file_space_id, plist_id, buf, req); + file_space_id, dxpl_id, buf, req); /* Check args and get class pointer */ if(NULL == obj) @@ -2099,7 +2101,7 @@ H5VLdataset_read(void *obj, hid_t connector_id, hid_t mem_type_id, hid_t mem_spa HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a VOL connector ID") /* Call the corresponding internal VOL routine */ - if(H5VL__dataset_read(obj, cls, mem_type_id, mem_space_id, file_space_id, plist_id, buf, req) < 0) + if(H5VL__dataset_read(obj, cls, mem_type_id, mem_space_id, file_space_id, dxpl_id, buf, req) < 0) HGOTO_ERROR(H5E_VOL, H5E_CANTINIT, FAIL, "unable to read dataset") done: @@ -2119,7 +2121,7 @@ done: */ static herr_t H5VL__dataset_write(void *obj, const H5VL_class_t *cls, hid_t mem_type_id, - hid_t mem_space_id, hid_t file_space_id, hid_t plist_id, const void *buf, + hid_t mem_space_id, hid_t file_space_id, hid_t dxpl_id, const void *buf, void **req) { herr_t ret_value = SUCCEED; /* Return value */ @@ -2131,7 +2133,7 @@ H5VL__dataset_write(void *obj, const H5VL_class_t *cls, hid_t mem_type_id, HGOTO_ERROR(H5E_VOL, H5E_UNSUPPORTED, FAIL, "VOL connector has no 'dataset write' method") /* Call the corresponding VOL callback */ - if((cls->dataset_cls.write)(obj, mem_type_id, mem_space_id, file_space_id, plist_id, buf, req) < 0) + if((cls->dataset_cls.write)(obj, mem_type_id, mem_space_id, file_space_id, dxpl_id, buf, req) < 0) HGOTO_ERROR(H5E_VOL, H5E_WRITEERROR, FAIL, "dataset write failed") done: @@ -2151,7 +2153,7 @@ done: */ herr_t H5VL_dataset_write(const H5VL_object_t *vol_obj, hid_t mem_type_id, - hid_t mem_space_id, hid_t file_space_id, hid_t plist_id, const void *buf, + hid_t mem_space_id, hid_t file_space_id, hid_t dxpl_id, const void *buf, void **req) { hbool_t vol_wrapper_set = FALSE; /* Whether the VOL object wrapping context was set up */ @@ -2165,7 +2167,7 @@ H5VL_dataset_write(const H5VL_object_t *vol_obj, hid_t mem_type_id, vol_wrapper_set = TRUE; /* Call the corresponding internal VOL routine */ - if(H5VL__dataset_write(vol_obj->data, vol_obj->connector->cls, mem_type_id, mem_space_id, file_space_id, plist_id, buf, req) < 0) + if(H5VL__dataset_write(vol_obj->data, vol_obj->connector->cls, mem_type_id, mem_space_id, file_space_id, dxpl_id, buf, req) < 0) HGOTO_ERROR(H5E_VOL, H5E_WRITEERROR, FAIL, "dataset write failed") done: @@ -2189,14 +2191,14 @@ done: */ herr_t H5VLdataset_write(void *obj, hid_t connector_id, hid_t mem_type_id, hid_t mem_space_id, - hid_t file_space_id, hid_t plist_id, const void *buf, void **req) + hid_t file_space_id, hid_t dxpl_id, const void *buf, void **req) { H5VL_class_t *cls; /* VOL connector's class struct */ herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_API_NOINIT H5TRACE8("e", "*xiiiii*x**x", obj, connector_id, mem_type_id, mem_space_id, - file_space_id, plist_id, buf, req); + file_space_id, dxpl_id, buf, req); /* Check args and get class pointer */ if(NULL == obj) @@ -2205,7 +2207,7 @@ H5VLdataset_write(void *obj, hid_t connector_id, hid_t mem_type_id, hid_t mem_sp HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a VOL connector ID") /* Call the corresponding internal VOL routine */ - if(H5VL__dataset_write(obj, cls, mem_type_id, mem_space_id, file_space_id, plist_id, buf, req) < 0) + if(H5VL__dataset_write(obj, cls, mem_type_id, mem_space_id, file_space_id, dxpl_id, buf, req) < 0) HGOTO_ERROR(H5E_VOL, H5E_CANTINIT, FAIL, "unable to write dataset") done: @@ -2989,6 +2991,43 @@ done: /*------------------------------------------------------------------------- + * Function: H5VL__file_specific_wrap_va_list + * + * Purpose: Perform File specific operations through the VOL. Just + * starts a va_list and passes it to the connector's + * callback. Needed when the VOL layer needs to replace one + * of the variable arguments. + * + * Return: Success: Non-negative + * Failure: Negative + * + *------------------------------------------------------------------------- + */ +static herr_t +H5VL__file_specific_wrap_va_list(void *obj, const H5VL_class_t *cls, + H5VL_file_specific_t specific_type, hid_t dxpl_id, void **req, ...) +{ + va_list arguments; /* Argument list passed from the API call */ + herr_t ret_value = SUCCEED; /* Return value */ + + FUNC_ENTER_STATIC + + /* Start access to the varargs, so they are available in all situations below */ + HDva_start(arguments, req); + + /* Call the corresponding VOL callback */ + if((cls->file_cls.specific)(obj, specific_type, dxpl_id, req, arguments) < 0) + HGOTO_ERROR(H5E_VOL, H5E_CANTOPERATE, FAIL, "file specific failed") + +done: + /* End access to the va_list */ + HDva_end(arguments); + + FUNC_LEAVE_NOAPI(ret_value) +} /* end H5VL__file_specific_wrap_va_list() */ + + +/*------------------------------------------------------------------------- * Function: H5VL__file_specific * * Purpose: Perform File specific operations through the VOL @@ -3010,9 +3049,38 @@ H5VL__file_specific(void *obj, const H5VL_class_t *cls, H5VL_file_specific_t spe if(NULL == cls->file_cls.specific) HGOTO_ERROR(H5E_VOL, H5E_UNSUPPORTED, FAIL, "VOL connector has no 'file specific' method") - /* Call the corresponding VOL callback */ - if((cls->file_cls.specific)(obj, specific_type, dxpl_id, req, arguments) < 0) - HGOTO_ERROR(H5E_VOL, H5E_CANTOPERATE, FAIL, "file specific failed") + /* Special handling for file is equal */ + if(specific_type == H5VL_FILE_IS_EQUAL) { + va_list tmp_args; /* Argument list passed from the API call */ + H5VL_object_t *vol_obj2; /* Second VOL object */ + hbool_t *is_equal; /* Output variable */ + int cmp_value; /* Comparison result */ + + /* Get parameters */ + HDva_copy(tmp_args, arguments); + vol_obj2 = HDva_arg(tmp_args, H5VL_object_t *); + is_equal = HDva_arg(tmp_args, hbool_t *); + HDva_end(tmp_args); + + HDassert(vol_obj2); + + /* Compare connector classes */ + if(H5VL_cmp_connector_cls(&cmp_value, cls, vol_obj2->connector->cls) < 0) + HGOTO_ERROR(H5E_VOL, H5E_CANTCOMPARE, FAIL, "can't compare connector classes") + + /* If the classes are different the files are different */ + if(cmp_value) + *is_equal = FALSE; + else + /* Make callback (need to extract data from vol_obj2 and redo the + * va_list) */ + if(H5VL__file_specific_wrap_va_list(obj, cls, specific_type, dxpl_id, req, vol_obj2->data, is_equal) < 0) + HGOTO_ERROR(H5E_VOL, H5E_CANTOPERATE, FAIL, "file specific failed") + } /* end if */ + else + /* Call the corresponding VOL callback */ + if((cls->file_cls.specific)(obj, specific_type, dxpl_id, req, arguments) < 0) + HGOTO_ERROR(H5E_VOL, H5E_CANTOPERATE, FAIL, "file specific failed") done: FUNC_LEAVE_NOAPI(ret_value) |