BlockDecoder

Struct BlockDecoder 

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pub struct BlockDecoder<'a, R: Read + Seek> { /* private fields */ }
Expand description

Decoder for a specific block within a 7z archive.

Provides access to entries within a single compression block and allows decoding files from that block.

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impl<'a, R: Read + Seek> BlockDecoder<'a, R>

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pub fn new( thread_count: u32, block_index: usize, archive: &'a Archive, password: &'a Password, source: &'a mut R, ) -> Self

Creates a new BlockDecoder for decoding a specific block in the archive.

§Arguments
  • thread_count - Number of threads to use for multi-threaded decompression (if supported by the codec)
  • block_index - Index of the block to decode within the archive
  • archive - Reference to the archive containing the block
  • password - Password for encrypted blocks
  • source - Mutable reference to the reader providing archive data
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pub fn set_thread_count(&mut self, thread_count: u32)

Sets the thread count to use when multi-threading is supported by the de-compression (currently only LZMA2 if encoded with MT support).

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pub fn entries(&self) -> &[ArchiveEntry]

Returns a slice of archive entries contained in this block.

The entries are returned in the order they appear in the block.

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pub fn entry_count(&self) -> usize

Returns the number of entries contained in this block.

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pub fn for_each_entries<F: FnMut(&ArchiveEntry, &mut dyn Read) -> Result<bool, Error>>( self, each: &mut F, ) -> Result<bool, Error>

Takes a closure to decode each files in this block.

When decoding files in a block, the data to be decompressed depends on the data in front of it, you cannot simply skip the previous data and only decompress the data in the back.

Non-solid archives use one block per file and allow more effective decoding of single files.

Auto Trait Implementations§

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impl<'a, R> Freeze for BlockDecoder<'a, R>

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impl<'a, R> RefUnwindSafe for BlockDecoder<'a, R>
where R: RefUnwindSafe,

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impl<'a, R> Send for BlockDecoder<'a, R>
where R: Send,

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impl<'a, R> Sync for BlockDecoder<'a, R>
where R: Sync,

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impl<'a, R> Unpin for BlockDecoder<'a, R>

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impl<'a, R> !UnwindSafe for BlockDecoder<'a, R>

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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.