diff options
Diffstat (limited to 'src/H5D.c')
| -rw-r--r-- | src/H5D.c | 24 |
1 files changed, 15 insertions, 9 deletions
@@ -54,12 +54,6 @@ /* Package initialization variable */ hbool_t H5_PKG_INIT_VAR = FALSE; -/* Declare extern the free list to manage blocks of VL data */ -H5FL_BLK_EXTERN(vlen_vl_buf); - -/* Declare extern the free list to manage other blocks of VL data */ -H5FL_BLK_EXTERN(vlen_fl_buf); - /*****************************/ /* Library Private Variables */ @@ -729,6 +723,7 @@ H5Dvlen_get_buf_size(hid_t dataset_id, hid_t type_id, hid_t space_id, hsize_t *size) { H5VL_object_t *vol_obj; /* Dataset for this operation */ + hbool_t supported; /* Whether 'get vlen buf size' operation is supported by VOL connector */ herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_API(FAIL) @@ -744,9 +739,20 @@ H5Dvlen_get_buf_size(hid_t dataset_id, hid_t type_id, hid_t space_id, if(size == NULL) HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "invalid 'size' pointer") - /* Get the buf size for the vlen elements */ - if(H5VL_dataset_get(vol_obj, H5VL_DATASET_GET_VLEN_BUF_SIZE, H5P_DATASET_XFER_DEFAULT, H5_REQUEST_NULL, type_id, space_id, size) < 0) - HGOTO_ERROR(H5E_DATASET, H5E_CANTGET, FAIL, "unable to get vlen buf size") + /* Check if the 'get_vlen_buf_size' callback is supported */ + supported = FALSE; + if(H5VL_introspect_opt_query(vol_obj, H5VL_SUBCLS_DATASET, H5VL_NATIVE_DATASET_GET_VLEN_BUF_SIZE, &supported) < 0) + HGOTO_ERROR(H5E_FILE, H5E_CANTGET, H5I_INVALID_HID, "can't check for 'get vlen buf size' operation") + if(supported) { + /* Make the 'get_vlen_buf_size' callback */ + if(H5VL_dataset_optional(vol_obj, H5VL_NATIVE_DATASET_GET_VLEN_BUF_SIZE, H5P_DATASET_XFER_DEFAULT, H5_REQUEST_NULL, type_id, space_id, size) < 0) + HGOTO_ERROR(H5E_DATASET, H5E_CANTGET, FAIL, "unable to get vlen buf size") + } /* end if */ + else { + /* Perform a generic operation that will work with all VOL connectors */ + if(H5D__vlen_get_buf_size_gen(vol_obj, type_id, space_id, size) < 0) + HGOTO_ERROR(H5E_DATASET, H5E_CANTGET, FAIL, "unable to get vlen buf size") + } /* end else */ done: FUNC_LEAVE_API(ret_value) |