Struct libflate::zlib::Encoder [−][src]
pub struct Encoder<W, E = DefaultLz77Encoder> { /* fields omitted */ }Expand description
ZLIB encoder.
Implementations
Makes a new encoder instance.
Encoded ZLIB stream is written to inner.
Examples
use std::io::Write;
use libflate::zlib::Encoder;
let mut encoder = Encoder::new(Vec::new()).unwrap();
encoder.write_all(b"Hello World!").unwrap();
assert_eq!(encoder.finish().into_result().unwrap(),
vec![120, 156, 5, 192, 49, 13, 0, 0, 8, 3, 65, 43, 224, 6, 7, 24, 128,
237, 147, 38, 245, 63, 244, 230, 65, 181, 50, 215, 1, 28, 73, 4, 62]);Makes a new encoder instance with specified options.
Encoded ZLIB stream is written to inner.
Examples
use std::io::Write;
use libflate::zlib::{Encoder, EncodeOptions};
let options = EncodeOptions::new().no_compression();
let mut encoder = Encoder::with_options(Vec::new(), options).unwrap();
encoder.write_all(b"Hello World!").unwrap();
assert_eq!(encoder.finish().into_result().unwrap(),
[120, 1, 1, 12, 0, 243, 255, 72, 101, 108, 108, 111, 32, 87, 111,
114, 108, 100, 33, 28, 73, 4, 62]);Returns the header of the ZLIB stream.
Examples
use libflate::zlib::{Encoder, Lz77WindowSize};
let encoder = Encoder::new(Vec::new()).unwrap();
assert_eq!(encoder.header().window_size(), Lz77WindowSize::KB32);Writes the ZLIB trailer and returns the inner stream.
Examples
use std::io::Write;
use libflate::zlib::Encoder;
let mut encoder = Encoder::new(Vec::new()).unwrap();
encoder.write_all(b"Hello World!").unwrap();
assert_eq!(encoder.finish().into_result().unwrap(),
vec![120, 156, 5, 192, 49, 13, 0, 0, 8, 3, 65, 43, 224, 6, 7, 24, 128,
237, 147, 38, 245, 63, 244, 230, 65, 181, 50, 215, 1, 28, 73, 4, 62]);Note
If you are not concerned the result of this encoding,
it may be convenient to use AutoFinishUnchecked instead of the explicit invocation of this method.
use std::io;
use libflate::finish::AutoFinishUnchecked;
use libflate::zlib::Encoder;
let plain = b"Hello World!";
let mut buf = Vec::new();
let mut encoder = AutoFinishUnchecked::new(Encoder::new(&mut buf).unwrap());
io::copy(&mut &plain[..], &mut encoder).unwrap();Returns the immutable reference to the inner stream.
Returns the mutable reference to the inner stream.
Unwraps the Encoder, returning the inner stream.
Trait Implementations
Write a buffer into this writer, returning how many bytes were written. Read more
Flush this output stream, ensuring that all intermediately buffered contents reach their destination. Read more
can_vector)Determines if this Writer has an efficient write_vectored
implementation. Read more
Attempts to write an entire buffer into this writer. Read more
write_all_vectored)Attempts to write multiple buffers into this writer. Read more
Writes a formatted string into this writer, returning any error encountered. Read more