Enumeratees

Arguments

:: MonadIO m
=> Int	Compression level
-> WindowBits	Zlib parameter (see the zlib-bindings package as well as the zlib C library)
-> Enumeratee ByteString ByteString m a

Compress (deflate) a stream of ByteStrings. The WindowBits also control the format (zlib vs. gzip).

decompress

Arguments

:: MonadIO m
=> WindowBits	Zlib parameter (see the zlib-bindings package as well as the zlib C library)
-> Enumeratee ByteString ByteString m a

Decompress (inflate) a stream of ByteStrings. For example:

    run $ enumFile "test.z" $$ decompress defaultWindowBits $$ printChunks True

gzip :: MonadIO m => Enumeratee ByteString ByteString m a

Gzip compression with default parameters.

ungzip :: MonadIO m => Enumeratee ByteString ByteString m a

Gzip decompression with default parameters.

Re-exported from zlib-bindings

data WindowBits

This specifies the size of the compression window. Larger values of this parameter result in better compression at the expense of higher memory usage.

The compression window size is the value of the the window bits raised to the power 2. The window bits must be in the range 8..15 which corresponds to compression window sizes of 256b to 32Kb. The default is 15 which is also the maximum size.

The total amount of memory used depends on the window bits and the MemoryLevel. See the MemoryLevel for the details.

Constructors

WindowBits Int

defaultWindowBits :: WindowBits

The default WindowBits is 15 which is also the maximum size.