Mercurial > prosody-hg

annotate util/bitcompat.lua @ 10801:2b97aac0ea3c

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mod_csi_simple: Don't consider presence errors as important A large share of `<presence type=error>` appears to be noise from large public channels and failed presence probes. The later at least should count as presence updates, which are currently considered unimportant. See also 8cecb85e4bc4 which is partly reverted here. The intent there was probably mostly about message (delivery) errors, which should be considered important.
author Kim Alvefur <zash@zash.se>
date Tue, 05 May 2020 23:08:47 +0200
parents 48f7cda4174d
children 0f4feaf9ca64
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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48f7cda4174d util.bitops: Library to find appropriate bitwise library (closes #1395)
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1 -- Compatibility layer for bitwise operations
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2
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3 -- First try the bit32 lib
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4 -- Lua 5.3 has it with compat enabled
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5 -- Lua 5.2 has it by default
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6 if _G.bit32 then
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7 return _G.bit32;
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8 else
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9 -- Lua 5.1 may have it as a standalone module that can be installed
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10 local ok, bitop = pcall(require, "bit32")
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11 if ok then
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12 return bitop;
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13 end
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14 end
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15
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16 do
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17 -- Lua 5.3 and 5.4 would be able to use native infix operators
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18 local ok, bitop = pcall(require, "util.bit53")
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19 if ok then
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20 return bitop;
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21 end
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22 end
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23
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24 do
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25 -- Lastly, try the LuaJIT bitop library
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26 local ok, bitop = pcall(require, "bit")
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27 if ok then
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28 return bitop;
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29 end
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30 end
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31
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32 error "No bit module found. See https://prosody.im/doc/depends#bitop";