diff options
Diffstat (limited to 'src/H5Dio.c')
| -rw-r--r-- | src/H5Dio.c | 31 |
1 files changed, 18 insertions, 13 deletions
diff --git a/src/H5Dio.c b/src/H5Dio.c index 562ee22..f1d6890 100644 --- a/src/H5Dio.c +++ b/src/H5Dio.c @@ -220,14 +220,11 @@ H5D_fill(const void *fill, const H5T_t *fill_type, void *buf, const H5T_t *buf_t FUNC_ENTER_NOAPI_NOINIT(H5D_fill) /* Check args */ + assert(fill_type); assert(buf); assert(buf_type); assert(space); - /* Check for "default" fill value */ - if(fill_type==NULL) - fill_type=buf_type; - /* Get the memory and file datatype sizes */ src_type_size = H5T_get_size(fill_type); dst_type_size = H5T_get_size(buf_type); @@ -245,19 +242,20 @@ H5D_fill(const void *fill, const H5T_t *fill_type, void *buf, const H5T_t *buf_t /* Copy the user's data into the buffer for conversion */ HDmemcpy(tconv_buf,fill,src_type_size); - /* Convert memory buffer into disk buffer */ /* Set up type conversion function */ - if (NULL == (tpath = H5T_path_find(fill_type, buf_type, NULL, NULL, dxpl_id))) { + if (NULL == (tpath = H5T_path_find(fill_type, buf_type, NULL, NULL, dxpl_id))) HGOTO_ERROR(H5E_DATASET, H5E_UNSUPPORTED, FAIL, "unable to convert between src and dest data types") - } else if (!H5T_path_noop(tpath)) { + + /* Convert memory buffer into disk buffer */ + if (!H5T_path_noop(tpath)) { if ((src_id = H5I_register(H5I_DATATYPE, H5T_copy(fill_type, H5T_COPY_ALL)))<0 || (dst_id = H5I_register(H5I_DATATYPE, H5T_copy(buf_type, H5T_COPY_ALL)))<0) HGOTO_ERROR(H5E_DATASET, H5E_CANTREGISTER, FAIL, "unable to register types for conversion") - } - /* Perform data type conversion */ - if (H5T_convert(tpath, src_id, dst_id, (hsize_t)1, 0, 0, tconv_buf, bkg_buf, dxpl_id)<0) - HGOTO_ERROR(H5E_DATASET, H5E_CANTCONVERT, FAIL, "data type conversion failed") + /* Perform data type conversion */ + if (H5T_convert(tpath, src_id, dst_id, (hsize_t)1, 0, 0, tconv_buf, bkg_buf, dxpl_id)<0) + HGOTO_ERROR(H5E_DATASET, H5E_CANTCONVERT, FAIL, "data type conversion failed") + } /* end if */ } /* end if */ /* Fill the selection in the memory buffer */ @@ -600,7 +598,7 @@ H5D_read(H5D_t *dataset, const H5T_t *mem_type, const H5S_t *mem_space, HGOTO_DONE(SUCCEED) /* Go fill the user's selection with the dataset's fill value */ - if(H5D_fill(fill.buf,fill.type,buf,mem_type,mem_space, dxpl_id)<0) + if(H5D_fill(fill.buf,dataset->type,buf,mem_type,mem_space, dxpl_id)<0) HGOTO_ERROR(H5E_DATASET, H5E_READERROR, FAIL, "filling buf failed") else HGOTO_DONE(SUCCEED) @@ -819,13 +817,20 @@ H5D_write(H5D_t *dataset, const H5T_t *mem_type, const H5S_t *mem_space, if(nelmts > 0 && dataset->efl.nused==0 && dataset->layout.type!=H5D_COMPACT && dataset->layout.addr==HADDR_UNDEF) { hssize_t file_nelmts; /* Number of elements in file dataset's dataspace */ + hbool_t full_overwrite; /* Whether we are over-writing all the elements */ /* Get the number of elements in file dataset's dataspace */ if((file_nelmts=H5S_get_simple_extent_npoints(file_space))<0) HGOTO_ERROR (H5E_DATASET, H5E_BADVALUE, FAIL, "can't retrieve number of elements in file dataset") + /* Always allow fill values to be written if the dataset has a VL datatype */ + if(H5T_detect_class(dataset->type, H5T_VLEN)) + full_overwrite=FALSE; + else + full_overwrite=(hsize_t)file_nelmts==nelmts ? TRUE : FALSE; + /* Allocate storage */ - if(H5D_alloc_storage(dataset->ent.file,dxpl_id,dataset,H5D_ALLOC_WRITE, TRUE, (hbool_t)((hsize_t)file_nelmts==nelmts ? TRUE : FALSE))<0) + if(H5D_alloc_storage(dataset->ent.file,dxpl_id,dataset,H5D_ALLOC_WRITE, TRUE, full_overwrite)<0) HGOTO_ERROR(H5E_DATASET, H5E_CANTINIT, FAIL, "unable to initialize storage") } /* end if */ |