Software /
code /
prosody
File
loader.lua @ 13134:638f627e707f
util.datamanager: Add O(1) list indexing with on-disk index
Index file contains offsets and lengths of each item() which allows
seeking directly to each item and reading it without parsing the entire
file.
Also allows tricks like binary search, assuming items have some defined
order.
We take advantage of the 1-based indexing in tables to store a magic
header in the 0 position, so that table index 1 ends up at file index 1.
author | Kim Alvefur <zash@zash.se> |
---|---|
date | Tue, 11 May 2021 02:09:56 +0200 |
parent | 12949:2f61ebcf37c0 |
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-- Allow for both require"util.foo" and require"prosody.util.foo" for a -- transition period while we update all require calls. if (...) == "prosody.loader" then if not package.path:find "prosody" then -- For require"util.foo" also look in paths equivalent to "prosody.util.foo" package.path = package.path:gsub("([^;]*)(?[^;]*)", "%1prosody/%2;%1%2"); package.cpath = package.cpath:gsub("([^;]*)(?[^;]*)", "%1prosody/%2;%1%2"); end else -- When requiring "prosody.x", also look for "x" for i = #package.searchers, 1, -1 do local search = package.searchers[i]; table.insert(package.searchers, i, function(module_name) local lib = module_name:match("^prosody%.(.*)$"); if lib then return search(lib); end end) end end -- Look for already loaded module with or without prefix setmetatable(package.loaded, { __index = function(loaded, module_name) local suffix = module_name:match("^prosody%.(.*)$"); if suffix then return rawget(loaded, suffix); end local prefixed = rawget(loaded, "prosody." .. module_name); if prefixed ~= nil then return prefixed; end end; })