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net.server_epoll: Optimize concatenation of exactly 2 buffer chunks

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Saves a function call. I forget if I measured this kind of thing but
IIRC infix concatenation is faster than a function call up to some
number of items, but let's stop at 2 here.
This commit is contained in:
Kim Alvefur 2021-07-16 15:40:08 +02:00
parent 56fef6867f
commit 50bd7b79ea
1 changed files with 3 additions and 1 deletions
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4
net/server_epoll.lua
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@ -473,8 +473,10 @@ function interface:onwritable()
local buffer = self.writebuffer;
local data = buffer or "";
if type(buffer) == "table" then
if buffer[2] then
if buffer[3] then
data = t_concat(data);
elseif buffer[2] then
data = buffer[1] .. buffer[2];
else
data = buffer[1] or "";
end