diff options
| -rw-r--r-- | c++/src/H5DataSet.cpp | 41 | ||||
| -rw-r--r-- | c++/src/H5DataSet.h | 10 |
2 files changed, 48 insertions, 3 deletions
diff --git a/c++/src/H5DataSet.cpp b/c++/src/H5DataSet.cpp index 9817b17..615252d 100644 --- a/c++/src/H5DataSet.cpp +++ b/c++/src/H5DataSet.cpp @@ -180,6 +180,47 @@ void DataSet::extend( const hsize_t* size ) const } } +/*-------------------------------------------------------------------------- + NAME + fillMemBuf + PURPOSE + Fills a selection in memory with a value + USAGE + fillMemBuf(fill, fill_type, buf, buf_type, space) + fillMemBuf(buf, buf_type, space) + void *buf; IN/OUT: Memory buffer to fill selection within + DataType& buf_type; IN: Datatype of the elements in buffer + DataSpace& space; IN: Dataspace describing memory buffer & + containing selection to use. + const void *fill; IN: Pointer to fill value to use - default NULL + DataType& fill_type; IN: Datatype of the fill value + DESCRIPTION + Use the selection in the dataspace to fill elements in a memory buffer. + COMMENTS, BUGS, ASSUMPTIONS + Second usage uses all zeros as fill value +--------------------------------------------------------------------------*/ +void DataSet::fillMemBuf(const void *fill, DataType& fill_type, void *buf, DataType& buf_type, DataSpace& space) +{ + hid_t fill_type_id = fill_type.getId(); + hid_t buf_type_id = buf_type.getId(); + hid_t space_id = space.getId(); + herr_t ret_value = H5Dfill(fill, fill_type_id, buf, buf_type_id, space_id); + if( ret_value < 0 ) + { + throw DataSetIException("DataSet::fillMemBuf", "H5Dfill failed"); + } +} +void DataSet::fillMemBuf(void *buf, DataType& buf_type, DataSpace& space) +{ + hid_t buf_type_id = buf_type.getId(); + hid_t space_id = space.getId(); + herr_t ret_value = H5Dfill(NULL, buf_type_id, buf, buf_type_id, space_id); + if( ret_value < 0 ) + { + throw DataSetIException("DataSet::fillMemBuf", "H5Dfill failed"); + } +} + // This private function calls the C API H5Dclose to close this dataset. // Used by IdComponent::reset void DataSet::p_close() const diff --git a/c++/src/H5DataSet.h b/c++/src/H5DataSet.h index c860d3f..dba39b0 100644 --- a/c++/src/H5DataSet.h +++ b/c++/src/H5DataSet.h @@ -39,10 +39,14 @@ class __DLLCPP__ DataSet : public AbstractDs { // Extends the dataset with unlimited dimension. void extend( const hsize_t* size ) const; + // Fills a selection in memory with a value + void fillMemBuf(const void *fill, DataType& fill_type, void *buf, DataType& buf_type, DataSpace& space); + // Fills a selection in memory with zero + void fillMemBuf(void *buf, DataType& buf_type, DataSpace& space); + // Creates a copy of an existing DataSet using its id - // (used only by template functions in FGtemplates.h - // to return a DataSet, will not be published; Note: should use - // friend template function) + // Note: used by CommonFG to return a DataSet; should be modified + // to use friend template function instead) DataSet( const hid_t dataset_id ); // Used by the API to appropriately close a dataset |