Struct libflate::gzip::Encoder [−][src]
pub struct Encoder<W, E = DefaultLz77Encoder> { /* fields omitted */ }
Expand description
GZIP encoder.
Implementations
Makes a new encoder instance.
Encoded GZIP stream is written to inner
.
Examples
use std::io::Write;
use libflate::gzip::Encoder;
let mut encoder = Encoder::new(Vec::new()).unwrap();
encoder.write_all(b"Hello World!").unwrap();
encoder.finish().into_result().unwrap();
Makes a new encoder instance with specified options.
Encoded GZIP stream is written to inner
.
Examples
use std::io::Write;
use libflate::gzip::{Encoder, EncodeOptions, HeaderBuilder};
let header = HeaderBuilder::new().modification_time(123).finish();
let options = EncodeOptions::new().no_compression().header(header);
let mut encoder = Encoder::with_options(Vec::new(), options).unwrap();
encoder.write_all(b"Hello World!").unwrap();
assert_eq!(encoder.finish().into_result().unwrap(),
&[31, 139, 8, 0, 123, 0, 0, 0, 0, 3, 1, 12, 0, 243, 255, 72, 101, 108, 108,
111, 32, 87, 111, 114, 108, 100, 33, 163, 28, 41, 28, 12, 0, 0, 0][..]);
Returns the header of the GZIP stream.
Examples
use libflate::gzip::{Encoder, Os};
let encoder = Encoder::new(Vec::new()).unwrap();
assert_eq!(encoder.header().os(), Os::Unix);
Writes the GZIP trailer and returns the inner stream.
Examples
use std::io::Write;
use libflate::gzip::Encoder;
let mut encoder = Encoder::new(Vec::new()).unwrap();
encoder.write_all(b"Hello World!").unwrap();
assert!(encoder.finish().as_result().is_ok())
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::gzip::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 Write
r 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