Optimize bytes copying after receiving a message from zmq
#158
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approved these changes
Jun 22, 2023
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This looks good and safe to me. MEMCPY will definitely be faster. |
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The utility function
unpack-foreign-msg-to-bytesusescffi:foreign-array-to-lispto copyzmqmessage to a lisp vector, this is very slow for large messages sincecffi:foreign-array-to-lispsets the lisp vector byte-to-byte in a loop.In this PR,
memcpyis used instead ofcffi:foreign-array-to-lispto copyzmqmessage to the lisp vector in one pass, and the result is very close to that of the C version ofzmq.