prosody
735b8f4a6d7e
plugins/mod_storage_none.lua

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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>
date Thu, 08 Jul 2021 18:21:59 +0200
parent 8061:ef671d337577
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1b35a562528d mod_storage_none: Ignore unused arguments [luacheck]
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1 -- luacheck: ignore 212
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2
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b00812c6daf8 mod_storage_none: A null-like storage provider that returns all stores as empty, and fails to save anything to them
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3 local driver = {};
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4 local driver_mt = { __index = driver };
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5
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7cf6d3a2c855 mod_storage_{none,internal,sql}: Return error for unsupported (everything but keyval) store types
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6 function driver:open(store, typ)
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7 if typ and typ ~= "keyval" and typ ~= "archive" then
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8 return nil, "unsupported-store";
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9 end
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10 return setmetatable({ store = store, type = typ }, driver_mt);
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11 end
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12 function driver:get(user)
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13 return {};
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14 end
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16 function driver:set(user, data)
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17 return nil, "Storage disabled";
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18 end
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20 function driver:stores(username)
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21 return { "roster" };
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22 end
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23
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24 function driver:purge(user)
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25 return true;
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26 end
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27
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28 function driver:append()
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29 return nil, "Storage disabled";
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30 end
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31
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32 function driver:find()
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33 return function () end, 0;
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34 end
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35
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36 function driver:delete()
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37 return true;
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38 end
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39
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40 module:provides("storage", driver);