Use Case

As a driver engineer,
I want to remove unnecessary buffer concatenation in our wire protocol abstraction,
So that we remove unnecessary buffer allocations.

Wire protocol messages in the Node driver implement a `toBin()` method that returns a serialized wire protocol message.  `toBin()` returns an array of Uint8Arrays.  The message stream ( and the forthcoming new connection layer ) call `toBin()` and then concatenate the buffers before writing this to the socket.

The socket write api accepts a buffer - there's no reason we can't just write each buffer returned by `toBin()` to the socket directly.  We should remove the unnecessary `Buffer.concat` calls and write each chunk to the socket directly.

User Impact

• n/a

Dependencies

• n/a

Unknowns

Acceptance Criteria

Implementation Requirements

• In the message stream, when a wire protocol message is serialized, change the logic to write each buffer sequentially instead of concatenating them into a buffer and writing the concatenated buffer

Testing Requirements

• ensure existing tests pass

Documentation Requirements

• none

Follow Up Requirements

• none