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prosody
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tools/linedebug.lua @ 13136:396db0e7084f
mod_storage_internal: Use a binary search for time based ranges
Iterating over an entire archive to find a few items in the far end from
where iteration started is expensive, and probably more expensive with
the lazy-loading of items added in the previous commit.
Since we can now efficiently read items in random order, we can now use
a binary search to find a better starting point for iteration.
author | Kim Alvefur <zash@zash.se> |
---|---|
date | Wed, 12 May 2021 01:32:03 +0200 |
parent | 11193:5850d24a4ad3 |
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local data = {} local getinfo = debug.getinfo; local function linehook(ev, li) local S = getinfo(2, "S"); if S and S.source and S.source:match"^@" then local file = S.source:sub(2); local lines = data[file]; if not lines then lines = {}; data[file] = lines; for line in io.lines(file) do lines[#lines+1] = line; end end io.stderr:write(ev, " ", file, " ", li, " ", lines[li], "\n"); end end debug.sethook(linehook, "l");