io.ktor.utils.io.streams.java.io.InputStream -

asInput	`fun InputStream.asInput( pool: ObjectPool<ChunkBuffer> = ChunkBuffer.Pool ): Input`
readPacketAtLeast	`fun InputStream.readPacketAtLeast(n: Long): ByteReadPacket` Read a packet of at least n bytes or all remaining. Does fail if not enough bytes remaining.
readPacketAtMost	`fun InputStream.readPacketAtMost(n: Long): ByteReadPacket` Read a packet of at most n bytes. Resulting packet could be empty however this function does always reads as much bytes as possible.
readPacketExact	`fun InputStream.readPacketExact(n: Long): ByteReadPacket` Read a packet of exactly n bytes