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use std::io;
use super::{Decoder, Encoder};
/// Decompress from the given source as if using a `Decoder`.
///
/// The input data must be in the zstd frame format.
pub fn decode_all<R: io::Read>(source: R) -> io::Result<Vec<u8>> {
let mut result = Vec::new();
copy_decode(source, &mut result)?;
Ok(result)
}
/// Decompress from the given source as if using a `Decoder`.
///
/// Decompressed data will be appended to `destination`.
pub fn copy_decode<R, W>(source: R, mut destination: W) -> io::Result<()>
where
R: io::Read,
W: io::Write,
{
let mut decoder = Decoder::new(source)?;
io::copy(&mut decoder, &mut destination)?;
Ok(())
}
/// Compress all data from the given source as if using an `Encoder`.
///
/// Result will be in the zstd frame format.
///
/// A level of `0` uses zstd's default (currently `3`).
pub fn encode_all<R: io::Read>(source: R, level: i32) -> io::Result<Vec<u8>> {
let mut result = Vec::<u8>::new();
copy_encode(source, &mut result, level)?;
Ok(result)
}
/// Compress all data from the given source as if using an `Encoder`.
///
/// Compressed data will be appended to `destination`.
///
/// A level of `0` uses zstd's default (currently `3`).
pub fn copy_encode<R, W>(
mut source: R,
destination: W,
level: i32,
) -> io::Result<()>
where
R: io::Read,
W: io::Write,
{
let mut encoder = Encoder::new(destination, level)?;
io::copy(&mut source, &mut encoder)?;
encoder.finish()?;
Ok(())
}
#[cfg(tests)]
mod tests {}