prosody
54530085dffe
util/bitcompat.lua

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util/bitcompat.lua @ 11762:54530085dffe

net.server: Fall back to default backend from libevent instead of always select Fixes that selecting libevent when unavaibalbe would fall back to select instead of epoll, even if that's available. This way, we only have to update it in once place when choosing a new default.
author Kim Alvefur <zash@zash.se>
date Fri, 03 Sep 2021 17:35:34 +0200
parent 10241:48f7cda4174d
child 12573:0f4feaf9ca64
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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10241
48f7cda4174d util.bitops: Library to find appropriate bitwise library (closes #1395)
Kim Alvefur <zash@zash.se>
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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
48f7cda4174d util.bitops: Library to find appropriate bitwise library (closes #1395)
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32 error "No bit module found. See https://prosody.im/doc/depends#bitop";