view mod_storage_memory/mod_storage_memory.lua @ 1259:fa7e402fcdc1

mod_storage_memory: Simple in-memory only storage backend without persistence
author Kim Alvefur <zash@zash.se>
date Tue, 31 Dec 2013 02:17:50 +0100
parents
children 8b997d9cf09e
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local memory = setmetatable({}, {
	__index = function(t, k)
		local store = module:shared(k)
		t[k] = store;
		return store;
	end
});

local keyval_store = {};
keyval_store.__index = keyval_store;

function keyval_store:get(username)
	return self.store[username];
end

function keyval_store:set(username, data)
	self.store[username] = data;
	return true;
end

local stores = {
	keyval = keyval_store;
}

local driver = {};

function driver:open(store, typ)
	local store_mt = stores[typ or "keyval"];
	if store_mt then
		return setmetatable({ store = memory[store] }, store_mt);
	end
	return nil, "unsupported-store";
end

module:provides("storage", driver);