Struct ggstd::compress::zlib::Writer

pub struct Writer<'a> { /* private fields */ }

A Writer takes data written to it and writes the compressed form of that data to an underlying writer (see new_writer).

Implementations

impl<'a> Writer<'a>

pub fn reset(&mut self, w: &'a mut dyn Write)

reset clears the state of the Writer z such that it is equivalent to its initial state from new_writer_level or new_writer_level_dict, but instead writing to w.

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

write writes a compressed form of p to the underlying writer. The compressed bytes are not necessarily flushed until the Writer is closed or explicitly flushed.

Examples found in repository

examples/zlib-writer.rs (line 7)

fn main() {
    let mut b = bytes::Buffer::new();
    let mut w = zlib::new_writer(&mut b);
    w.write("hello, world\n".as_bytes()).unwrap();
    w.close().unwrap();
    println!("{:?}", b.bytes());
    // Output: [120 156 202 72 205 201 201 215 81 40 207 47 202 73 225 2 4 0 0 255 255 33 231 4 147]
}

pub fn flush(&'a mut self) -> Result<()>

flush flushes the Writer to its underlying ggio::Writer.

pub fn close(&mut self) -> Result<()>

close closes the Writer, flushing any unwritten data to the underlying writer, but does not close the underlying writer.

Examples found in repository

examples/zlib-writer.rs (line 8)

fn main() {
    let mut b = bytes::Buffer::new();
    let mut w = zlib::new_writer(&mut b);
    w.write("hello, world\n".as_bytes()).unwrap();
    w.close().unwrap();
    println!("{:?}", b.bytes());
    // Output: [120 156 202 72 205 201 201 215 81 40 207 47 202 73 225 2 4 0 0 255 255 33 231 4 147]
}