Struct FileWriteCache 

pub struct FileWriteCache { /* private fields */ }

Implement write cache in memory, and update file only if necessary

Implementations

impl FileWriteCache

pub fn new<P: Into<PathBuf>>( p: P, fs_reg: &mut dyn FileOperationsRegistrator, ) -> FileWriteCache

pub fn update_file_if_necessary(self) -> Result<(), Error>

pub fn take_content(&mut self) -> Vec<u8>

pub fn replace_content(&mut self, bytes: Vec<u8>)

pub fn define_item<S: Into<String>>(&mut self, item: S)

pub fn is_item_defined(&self, item: &str) -> bool

Trait Implementations

impl Write for FileWriteCache

fn write(&mut self, data: &[u8]) -> Result<usize, Error>

Writes a buffer into this writer, returning how many bytes were written.

fn flush(&mut self) -> Result<(), Error>

Flushes this output stream, ensuring that all intermediately buffered contents reach their destination.

fn write_vectored(&mut self, bufs: &[IoSlice<'_>]) -> Result<usize, Error>

Like write, except that it writes from a slice of buffers.

fn is_write_vectored(&self) -> bool

🔬This is a nightly-only experimental API. (can_vector)

Determines if this Writer has an efficient write_vectored implementation.

fn write_all(&mut self, buf: &[u8]) -> Result<(), Error>

Attempts to write an entire buffer into this writer.

fn write_all_vectored(&mut self, bufs: &mut [IoSlice<'_>]) -> Result<(), Error>

🔬This is a nightly-only experimental API. (write_all_vectored)

Attempts to write multiple buffers into this writer.

fn write_fmt(&mut self, args: Arguments<'_>) -> Result<(), Error>

Writes a formatted string into this writer, returning any error encountered.

fn by_ref(&mut self) -> &mut Self

where Self: Sized,

Creates a “by reference” adapter for this instance of Write.