Software /
code /
prosody
File
plugins/mod_storage_none.lua @ 11661:735b8f4a6d7e
net.http: Send entire HTTP request header as one write
When opportunistic writes are enabled this reduces the number of
syscalls and TCP packets sent on the wire.
Experiments with TCP Fast Open made this even more obvious.
That table trick probably wasn't as efficient. Lua generates bytecode
for a table with zero array slots and space for two entries in the hash
part, plus code to set [2] and [4]. I didn't verify but I suspect it
would have had to resize the table when setting [1] and [3], although
probably only once. Concatenating the strings directly in Lua is easier
to read and involves no extra table or function call.
author | Kim Alvefur <zash@zash.se> |
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date | Thu, 08 Jul 2021 18:21:59 +0200 |
parent | 8061:ef671d337577 |
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-- luacheck: ignore 212 local driver = {}; local driver_mt = { __index = driver }; function driver:open(store, typ) if typ and typ ~= "keyval" and typ ~= "archive" then return nil, "unsupported-store"; end return setmetatable({ store = store, type = typ }, driver_mt); end function driver:get(user) return {}; end function driver:set(user, data) return nil, "Storage disabled"; end function driver:stores(username) return { "roster" }; end function driver:purge(user) return true; end function driver:append() return nil, "Storage disabled"; end function driver:find() return function () end, 0; end function driver:delete() return true; end module:provides("storage", driver);