File

plugins/mod_storage_none.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 8061:ef671d337577
line wrap: on
line source

-- luacheck: ignore 212

local driver = {};
local driver_mt = { __index = driver };

function driver:open(store, typ)
	if typ and typ ~= "keyval" and typ ~= "archive" then
		return nil, "unsupported-store";
	end
	return setmetatable({ store = store, type = typ }, driver_mt);
end
function driver:get(user)
	return {};
end

function driver:set(user, data)
	return nil, "Storage disabled";
end

function driver:stores(username)
	return { "roster" };
end

function driver:purge(user)
	return true;
end

function driver:append()
	return nil, "Storage disabled";
end

function driver:find()
	return function () end, 0;
end

function driver:delete()
	return true;
end

module:provides("storage", driver);