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StreamReader

Struct StreamReader 

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pub struct StreamReader<R: Read> { /* private fields */ }
Expand description

Reads and parses a btrfs send stream.

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impl<R: Read> StreamReader<R>

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pub fn new(reader: R) -> Result<Self, StreamError>

Read and validate the stream header, returning a new reader.

§Errors

Returns an error if the header is truncated, the magic is invalid, or the stream version is unsupported.

§Panics

Panics are unreachable: all unwrap() calls are on fixed-size slice-to-array conversions that always succeed.

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pub fn version(&self) -> u32

Return the stream protocol version.

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pub fn into_inner(self) -> R

Consume the underlying reader back out.

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pub fn next_command(&mut self) -> Result<Option<StreamCommand>, StreamError>

Read the next command from the stream.

Returns Ok(None) on clean EOF (no more data), Ok(Some(End)) when the stream contains an explicit end-of-stream marker.

§Errors

Returns an error on I/O failure, CRC mismatch, malformed TLV attributes, or unknown command types.

§Panics

Panics are unreachable: all unwrap() calls are on fixed-size slice-to-array conversions that always succeed.

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impl<R: Debug + Read> Debug for StreamReader<R>

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

Formats the value using the given formatter. Read more

Auto Trait Implementations§

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impl<R> Freeze for StreamReader<R>
where R: Freeze,

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impl<R> RefUnwindSafe for StreamReader<R>
where R: RefUnwindSafe,

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impl<R> Send for StreamReader<R>
where R: Send,

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impl<R> Sync for StreamReader<R>
where R: Sync,

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impl<R> Unpin for StreamReader<R>
where R: Unpin,

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impl<R> UnsafeUnpin for StreamReader<R>
where R: UnsafeUnpin,

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impl<R> UnwindSafe for StreamReader<R>
where R: 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> Same for T

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type Output = T

Should always be Self
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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.