Struct NetcdfWriter 

pub struct NetcdfWriter { /* private fields */ }

NetCDF-3 file writer.

Because netcdf3::FileWriter is !Send (uses Rc internally), we cannot store it as a field on a Send + Sync struct. Instead we buffer frame data in memory and materialise the FileWriter only inside close_file(), where it is created, used, and dropped within a single method call. The same approach is used for read_file() with FileReader.

Implementations

impl NetcdfWriter

pub fn new() -> Self

Trait Implementations

impl NDFileWriter for NetcdfWriter

fn close_file(&mut self) -> ADResult<()>

Close the open file — for netCDF this is where the whole file is written, from the frames write_file buffered.

The buffer belongs to the finalizer for the same reason current_path is taken up front: every write below is fallible, and frames of a file that will never exist must not stay resident until some later open_file happens to clear them.

fn writes_incrementally(&self) -> bool

netCDF-3 keeps the record count in the header, and netcdf3 0.6 fixes it when FileWriter::set_def writes that header: set_def may be called once, write_record_* rejects any index past the count it declared, and FileWriter::open truncates rather than appends. The whole file therefore has to be written from close_file, so a frame is not on disk when write_file returns.

fn open_file( &mut self, path: &Path, mode: NDFileMode, _array: &NDArray, ) -> ADResult<()>

fn write_file(&mut self, array: &NDArray) -> ADResult<()>

fn read_file(&mut self) -> ADResult<NDArray>

fn supports_multiple_arrays(&self) -> bool

fn set_num_capture(&mut self, _n: usize)

Inform the writer of the configured capture count (NDFileNumCapture) before the next open_file. A writer whose on-disk layout depends on the capture target (e.g. HDF5 chunk sizing, C calculateAttributeChunking) uses it; the default ignores it.