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authorKim Alvefur <zash@zash.se>2019-12-28 06:18:58 +0100
committerKim Alvefur <zash@zash.se>2019-12-28 06:18:58 +0100
commitd20b12c208ec42372f5cd24ac1334e347762085a (patch)
treebb561987b123cc8e7b6681b02ac0ebc29fcb9b3c /spec/scansion/pubsub_config.scs
parentf34d9adabdad785332aa1ace067ad9d384718769 (diff)
downloadprosody-d20b12c208ec42372f5cd24ac1334e347762085a.tar.gz
prosody-d20b12c208ec42372f5cd24ac1334e347762085a.zip
net.server_epoll: Avoid concatenating buffer with single item
Saves creating a string that'll be identical to buffer[1] anyways, as well as a C function call. Depending on Lua version and length of the string, this could be reusing an interned string, but a longer one would probably be duplicated for no reason. Having exactly one item in the buffer seems like it would be fairly common, but I have not done an extensive study. If opportunistic writes are enabled then it will be even more likely. This special case could be optimized like this in table.concat but it does not look like it is.
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