AlignedBuffer: avoid unnecessary data copying when already aligned #32698
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This update optimizes memory usage and execution time by avoiding unnecessary data copying when data is already aligned, which is typically the case. It improves the performance of handling Capnp messages, particularly in critical code blocks like
can_send_thread(),can_capnp_to_can_list_cp(#32009), etc.Cap'n Proto also performs the same alignment check internally. You can see an example of this in the following code snippet:
https://github.com/capnproto/capnproto/blob/f668fb59515d182ef3e6cefa7842662d4b37a8d7/c%2B%2B/src/capnp/compat/websocket-rpc.c%2B%2B#L49-L63