chore: add backed reader, writer and pipe implementation #19147
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… to block on errors
…being closed/reconnected race conditions
separate channels for writer/reader errors moved to an interface for reconnection coordination logic for closing a pipe
…etter error tracking
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Fixes: #18101
This PR introduces a new
backedpipepackage that provides reliable bidirectional byte streams over unreliable network connections. The implementation includes:BackedPipe: Orchestrates a reader and writer to provide transparent reconnection and data replayBackedReader: Handles reading with automatic reconnection, blocking reads when disconnectedBackedWriter: Maintains a ring buffer of recent writes for replay during reconnectionRingBuffer: Efficient circular buffer implementation for storing dataThe package enables resilient connections by tracking sequence numbers and replaying missed data after reconnection. It handles connection failures gracefully, automatically reconnecting and resuming data transfer from the appropriate point.