Bz3State

Struct Bz3State 

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pub struct Bz3State { /* private fields */ }
Expand description

Wrapper for the raw Bz3State.

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impl Bz3State

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pub fn new(block_size: usize) -> Result<Self>

Creates a new Bz3State.

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pub const fn as_raw(&mut self) -> *mut bz3_state

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pub fn error(&mut self) -> &'static str

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

Compresses a block in-place.

  • input_size is the original data size before compression. It must not exceed the block size associated with the state.
  • buf must be able to hold the data after compression. That’s, buf.len() >= bound(input_size) must be required, in some cases where the compressed data is larger than the original one.

Returns the size of data written to buf.

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pub fn decode_block( &mut self, buf: &mut [u8], compressed_size: usize, original_size: usize, ) -> Result<()>

Decompresses a block in-place.

buf must be able to hold both compressed and original data.

The original doc states as below:

  • buffer must be able to hold at least bz3_bound(orig_size) bytes
  • in order to ensure decompression will succeed for all possible bzip3 blocks.
  • In most (but not all) cases, orig_size should usually be sufficient.
  • If it is not sufficient, you must allocate a buffer of size bz3_bound(orig_size) temporarily.
  • If buffer_size is too small, BZ3_ERR_DATA_SIZE_TOO_SMALL will be returned.
  • The size must not exceed the block size associated with the state.

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impl Drop for Bz3State

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fn drop(&mut self)

Executes the destructor for this type. Read more
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impl Send for Bz3State

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impl Sync for Bz3State

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

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where T: ?Sized,

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

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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> IntoEither for T

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fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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where F: FnOnce(&Self) -> bool,

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impl<T> Pointable for T

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const ALIGN: usize

The alignment of pointer.
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type Init = T

The type for initializers.
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unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
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unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
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unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more
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impl<T, U> TryFrom<U> for 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.