prosody
59557bc3c4b8
tools/migration/migrator/mtools.lua

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tools/migration/migrator/mtools.lua @ 12084:59557bc3c4b8 0.11

net.server_epoll: Process all queued events from epoll before timers Should call timers less frequently when many sockets are waiting for processing. May help under heavy load. Requested by Ge0rG Backport of 2bcd84123eba requested by Roi
author Kim Alvefur <zash@zash.se>
date Thu, 21 Oct 2021 15:59:16 +0200
parent 7881:4e3067272fae
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2
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3 local print = print;
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4 local t_insert = table.insert;
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5 local t_sort = table.sort;
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8 local function sorted(params)
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10 local reader = params.reader; -- iterator to get items from
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11 local sorter = params.sorter; -- sorting function
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12 local filter = params.filter; -- filter function
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13
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14 local cache = {};
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15 for item in reader do
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16 if filter then item = filter(item); end
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17 if item then t_insert(cache, item); end
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18 end
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19 if sorter then
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20 t_sort(cache, sorter);
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21 end
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22 local i = 0;
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23 return function()
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24 i = i + 1;
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25 return cache[i];
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26 end;
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28 end
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29
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30 local function merged(reader, merger)
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31
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32 local item1 = reader();
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33 local merged = { item1 };
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34 return function()
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35 while true do
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36 if not item1 then return nil; end
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37 local item2 = reader();
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38 if not item2 then item1 = nil; return merged; end
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39 if merger(item1, item2) then
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40 --print("merged")
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41 item1 = item2;
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42 t_insert(merged, item1);
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43 else
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44 --print("unmerged", merged)
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45 item1 = item2;
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46 local tmp = merged;
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47 merged = { item1 };
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48 return tmp;
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49 end
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50 end
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51 end;
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52
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53 end
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55 return {
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56 sorted = sorted;
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57 merged = merged;
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58 }