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SslBufferPool

object SslBufferPool

A ByteBuffer pool reduces the number of ByteBuffer allocations in the SslTlsSupport. The reason why SslTlsSupport requires a buffer pool is because the current SSLEngine implementation always requires a 17KiB buffer for every 'wrap' and 'unwrap' operation. In most cases, the actual size of the required buffer is much smaller than that, and therefore allocating a 17KiB buffer for every 'wrap' and 'unwrap' operation wastes a lot of memory bandwidth, resulting in application performance degradation.

This implementation is very loosely based on the one from Netty.

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  6. def acquire(): ByteBuffer

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    @tailrec()
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  17. final def notifyAll(): Unit

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  18. def release(buf: ByteBuffer): Unit

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    @tailrec()
  19. def size: Int

    Returns the size of the current buffer pool.

    Returns the size of the current buffer pool. CAUTION: this method has complexity O(n), with n being the size of the pool

  20. final def synchronized[T0](arg0: ⇒ T0): T0

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  21. def toString(): String

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