prosody
781772c8b6d9
util/bit53.lua

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util/bit53.lua @ 12630:781772c8b6d9

mod_mam: Store archives with sub-second precision timestamps Changes sub-second part of example timestamp to .5 in order to avoid floating point issues. Some clients use timestamps when ordering messages which can lead to messages having the same timestamp ending up in the wrong order. It would be better to preserve the order messages are sent in, which is the order they were stored in.
author Kim Alvefur <zash@zash.se>
date Sun, 14 Aug 2022 17:28:31 +0200
parent 12365:af02b033bd7f
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
10241
48f7cda4174d util.bitops: Library to find appropriate bitwise library (closes #1395)
Kim Alvefur <zash@zash.se>
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1 -- Only the operators needed by net.websocket.frames are provided at this point
48f7cda4174d util.bitops: Library to find appropriate bitwise library (closes #1395)
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2 return {
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af02b033bd7f util.bit53: Support for more than 2 arguments, for compat with bit32
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3 band = function (a, b, ...)
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4 local ret = a & b;
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5 if ... then
af02b033bd7f util.bit53: Support for more than 2 arguments, for compat with bit32
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6 for i = 1, select("#", ...) do
af02b033bd7f util.bit53: Support for more than 2 arguments, for compat with bit32
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7 ret = ret & (select(i, ...));
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8 end
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9 end
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10 return ret;
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11 end;
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12 bor = function (a, b, ...)
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13 local ret = a | b;
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14 if ... then
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15 for i = 1, select("#", ...) do
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16 ret = ret | (select(i, ...));
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17 end
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18 end
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19 return ret;
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20 end;
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21 bxor = function (a, b, ...)
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22 local ret = a ~ b;
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23 if ... then
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24 for i = 1, select("#", ...) do
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25 ret = ret ~ (select(i, ...));
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26 end
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27 end
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28 return ret;
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29 end;
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d77d8fba44ad util.bit53: Add left- and right shift operations
Kim Alvefur <zash@zash.se>
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30 rshift = function (a, n) return a >> n end;
d77d8fba44ad util.bit53: Add left- and right shift operations
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31 lshift = function (a, n) return a << n end;
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32 };
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33