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#[cfg(feature = "encryption")]
use crate::cfb8::CipherError;
use mcproto_rs::protocol::State;
///
/// Indicates that a type provided by this crate is wrapping some inner value of type `I`, which can
/// be unwrapped by calling the `into_inner` function.
///
pub trait CraftWrapper<I> {
///
/// Unwraps the wrapped value of type `I`, and drops the wrapper type
///
fn into_inner(self) -> I;
}
///
/// Trait for stateful connection types, such as the `CraftReader<R>` or `CraftWriter<W>` or combo
/// type `CraftConnection<R, W>`.
///
/// Allows for control over protocol state, compression threshold, and encryption if those features
/// are enabled.
///
pub trait CraftIo {
///
/// Changes the current connection state. For readers, this changes how numeric packet IDs are
/// interpreted. For writers, this will change the packets that can be written without a panic.
///
fn set_state(&mut self, next: State);
#[cfg(feature = "compression")]
///
/// Modifies the compression configuration. If a value of `None` is provided, then compression is
/// disabled. If a value of `Some` is provided, then the threshold is set to that value.
///
/// If a 0 or negative value is provided in a `Some` variant, then it is the same as calling
/// this function with the `None` variant
///
fn set_compression_threshold(&mut self, threshold: Option<i32>);
#[cfg(feature = "encryption")]
///
/// Modifies the encryption configuration. This function should only be called once, and can only
/// be used to enable encryption.
///
/// If encryption is already enabled or the arguments are not valid for the cipher, then an
/// error is returned and nothing in the underlying state is changed.
///
fn enable_encryption(&mut self, key: &[u8], iv: &[u8]) -> Result<(), CipherError>;
}
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