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J. Nick Koston
24f380a67a
Add APIBuffer::reserve_and_resize() to eliminate duplicate grow_() capacity checks when reserve() is immediately followed by resize(). This saves one grow_() check per call site (~12 bytes each). Simplify set_nodelay_for_message() Nagle batching state machine by replacing the NODELAY_ON (-1) sentinel with a simple counter starting at 0. Reduces branches from 5 to 3 with identical behavior verified by exhaustive testing of all 2^N message sequences up to length 12. Saves 32 bytes flash on ESP8266.
