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[mesecons_luacontroller] Add memory size limit

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This commit is contained in:
LeMagnesium 2015-11-16 18:53:37 +01:00
parent 98bf4a6646
commit 0212b43616
1 changed files with 25 additions and 18 deletions
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43
mods/mesecons/mesecons_luacontroller/init.lua
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@ -163,19 +163,18 @@ end
-----------------
-- Overheating --
-----------------
local function overheat_off(pos)
mesecon.receptor_off(pos, mesecon.rules.flat)
local function burn_controller(pos)
local node = minetest.get_node(pos)
node.name = BASENAME.."_burnt"
minetest.swap_node(pos, node)
minetest.get_meta(pos):set_string("lc_memory", "");
-- Wait for pending operations
minetest.after(0.2, mesecon.receptor_off, pos, mesecon.rules.flat)
end
local function overheat(pos, meta)
if mesecon.do_overheat(pos) then -- If too hot
local node = minetest.get_node(pos)
node.name = BASENAME.."_burnt"
minetest.swap_node(pos, node)
-- Wait for pending operations
minetest.after(0.2, overheat_off, pos)
burn_controller(pos)
return true
end
end
@ -379,12 +378,17 @@ local function load_memory(meta)
end
local function save_memory(meta, mem)
meta:set_string("lc_memory",
minetest.serialize(
remove_functions(mem)
)
)
local function save_memory(pos, meta, mem)
local memstring = minetest.serialize(remove_functions(mem))
local memsize_max = mesecon.setting("luacontroller_memsize", 100000)
if (#memstring <= memsize_max) then
meta:set_string("lc_memory", memstring)
else
print("Error: Luacontroller memory overflow. "..memsize_max.." bytes available, "
..#memstring.." required. Controller overheats.")
burn_controller(pos)
end
end
@ -412,15 +416,17 @@ local function run(pos, event)
return "Ports set are invalid."
end
save_memory(meta, env.mem)
-- Actually set the ports
set_port_states(pos, env.port)
-- Save memory. This may burn the luacontroller if a memory overflow occurs.
save_memory(pos, meta, env.mem)
end
mesecon.queue:add_function("lc_interrupt", function (pos, luac_id, iid)
-- There is no luacontroller anymore / it has been reprogrammed / replaced
-- There is no luacontroller anymore / it has been reprogrammed / replaced / burnt
if (minetest.get_meta(pos):get_int("luac_id") ~= luac_id) then return end
if (minetest.registered_nodes[minetest.get_node(pos).name].is_burnt) then return end
run(pos, {type="interrupt", iid = iid})
end)
@ -595,6 +601,7 @@ minetest.register_node(BASENAME .. "_burnt", {
"jeija_microcontroller_sides.png"
},
inventory_image = "jeija_luacontroller_burnt_top.png",
is_burnt = true,
paramtype = "light",
groups = {dig_immediate=2, not_in_creative_inventory=1},
drop = BASENAME.."0000",