Struct flate2::write::MultiGzDecoder

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pub struct MultiGzDecoder<W: Write> { /* private fields */ }
Expand description

A gzip streaming decoder that decodes a gzip file with multiple members.

This structure exposes a Write interface that will consume compressed data and write uncompressed data to the underlying writer.

A gzip file consists of a series of members concatenated one after another. MultiGzDecoder decodes all members of a file and writes them to the underlying writer one after another.

To handle members separately, see GzDecoder or read more in the introduction.

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impl<W: Write> MultiGzDecoder<W>

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pub fn new(w: W) -> MultiGzDecoder<W>

Creates a new decoder which will write uncompressed data to the stream. If the gzip stream contains multiple members all will be decoded.

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pub fn header(&self) -> Option<&GzHeader>

Returns the header associated with the current member.

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pub fn get_ref(&self) -> &W

Acquires a reference to the underlying writer.

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pub fn get_mut(&mut self) -> &mut W

Acquires a mutable reference to the underlying writer.

Note that mutating the output/input state of the stream may corrupt this object, so care must be taken when using this method.

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

Attempt to finish this output stream, writing out final chunks of data.

Note that this function can only be used once data has finished being written to the output stream. After this function is called then further calls to write may result in a panic.

§Panics

Attempts to write data to this stream may result in a panic after this function is called.

§Errors

This function will perform I/O to finish the stream, returning any errors which happen.

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pub fn finish(self) -> Result<W>

Consumes this decoder, flushing the output stream.

This will flush the underlying data stream and then return the contained writer if the flush succeeded.

Note that this function may not be suitable to call in a situation where the underlying stream is an asynchronous I/O stream. To finish a stream the try_finish (or shutdown) method should be used instead. To re-acquire ownership of a stream it is safe to call this method after try_finish or shutdown has returned Ok.

§Errors

This function will perform I/O to complete this stream, and any I/O errors which occur will be returned from this function.

Trait Implementations§

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impl<W: Debug + Write> Debug for MultiGzDecoder<W>

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl<W: Write> Write for MultiGzDecoder<W>

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

Write a buffer into this writer, returning how many bytes were written. Read more
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fn flush(&mut self) -> Result<()>

Flush this output stream, ensuring that all intermediately buffered contents reach their destination. Read more
1.36.0 · source§

fn write_vectored(&mut self, bufs: &[IoSlice<'_>]) -> Result<usize, Error>

Like write, except that it writes from a slice of buffers. Read more
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fn is_write_vectored(&self) -> bool

🔬This is a nightly-only experimental API. (can_vector)
Determines if this Writer has an efficient write_vectored implementation. Read more
1.0.0 · source§

fn write_all(&mut self, buf: &[u8]) -> Result<(), Error>

Attempts to write an entire buffer into this writer. Read more
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fn write_all_vectored(&mut self, bufs: &mut [IoSlice<'_>]) -> Result<(), Error>

🔬This is a nightly-only experimental API. (write_all_vectored)
Attempts to write multiple buffers into this writer. Read more
1.0.0 · source§

fn write_fmt(&mut self, fmt: Arguments<'_>) -> Result<(), Error>

Writes a formatted string into this writer, returning any error encountered. Read more
1.0.0 · source§

fn by_ref(&mut self) -> &mut Self
where Self: Sized,

Creates a “by reference” adapter for this instance of Write. Read more

Auto Trait Implementations§

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impl<W> Freeze for MultiGzDecoder<W>
where W: Freeze,

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impl<W> RefUnwindSafe for MultiGzDecoder<W>
where W: RefUnwindSafe,

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impl<W> Send for MultiGzDecoder<W>
where W: Send,

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impl<W> Sync for MultiGzDecoder<W>
where W: Sync,

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impl<W> Unpin for MultiGzDecoder<W>
where W: Unpin,

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impl<W> UnwindSafe for MultiGzDecoder<W>
where W: UnwindSafe,

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.