Enum CompressionCache 

pub enum CompressionCache {
    Disabled,
    Enabled(CompressionCacheInner),
}

An LRU cache for compressions.

The prospect of being able to reuse a given compression for many connections means we can afford to spend more time on that compression (by passing CompressionLevel::Amortized to the compressor).

Variants

Disabled

No caching happens, and compression happens each time using CompressionLevel::Interactive.

Enabled(CompressionCacheInner)

Compressions are stored in an LRU cache.

Implementations

impl CompressionCache

pub fn new(size: usize) -> Self

Make a CompressionCache that stores up to size compressed certificate messages.

pub(crate) fn compression_for( &self, compressor: &dyn CertCompressor, original: &CertificatePayloadTls13<'_>, ) -> Result<Arc<CompressionCacheEntry>, CompressionFailed>

Return a CompressionCacheEntry, which is an owning wrapper for a CompressedCertificatePayload.

compressor is the compression function we have negotiated. original is the uncompressed certificate message.

fn compression_for_impl( &self, compressor: &dyn CertCompressor, original: &CertificatePayloadTls13<'_>, ) -> Result<Arc<CompressionCacheEntry>, CompressionFailed>

fn uncached_compression( compressor: &dyn CertCompressor, original: &CertificatePayloadTls13<'_>, ) -> Result<Arc<CompressionCacheEntry>, CompressionFailed>

Compress original using compressor at Interactive level.

Trait Implementations

impl Debug for CompressionCache

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

Formats the value using the given formatter.

impl Default for CompressionCache

fn default() -> Self

Returns the “default value” for a type.