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2026-04-06 14:17:45 -07:00
commit 6451e59c3e
5 changed files with 281 additions and 0 deletions

106
stratum.lua Normal file
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local backend = require("backends.meshnetBackend")
local registeredTransforms = {}
local message_queue = {}
local data = {}
local function loadData()
if fs.exists("data.db") then
local file = fs.open("data.db","r")
if file then
data = textutils.unserialise(file.readAll() or "{}") or {}
file.close()
end
end
end
local function saveData()
local file = fs.open("data.db","w")
if file then
file.write(textutils.serialise(data))
file.close()
end
end
loadData()
-- Source - https://stackoverflow.com/a/1579673
-- Posted by Faisal Hanif, modified by community. See post 'Timeline' for change history
-- Retrieved 2026-04-05, License - CC BY-SA 3.0
---splits a string by a pattern
---@param pString string
---@param pPattern string
---@return string[]
local function split(pString, pPattern)
local Table = {} -- NOTE: use {n = 0} in Lua-5.0
local fpat = "(.-)" .. pPattern
local last_end = 1
local s, e, cap = pString:find(fpat, 1)
while s do
if s ~= 1 or cap ~= "" then
table.insert(Table,cap)
end
last_end = e+1
s, e, cap = pString:find(fpat, last_end)
end
if last_end <= #pString then
cap = pString:sub(last_end)
table.insert(Table, cap)
end
return Table
end
local function generateEnviorment()
local env = {string=string,colors=colors,math=math,table=table,print=print,textutils=textutils,error=error,pairs=pairs,ipairs=ipairs}
for k,v in pairs(registeredTransforms) do
local focus = env
local splits = split(k,"%.")
for i,indx in ipairs(splits) do
if i < #splits then
if not focus[indx] then focus[indx] = {} end
focus = focus[indx]
else
focus[indx] = function (...) return load(v.body,v.name,"t",env)({},...) end
end
end
end
return env
end
local function process()
while true do
local msg = table.remove(message_queue,1)
if msg then
local id,msg = msg.id,msg.msg
if msg.protocol == "RegisterTransform" then
registeredTransforms[msg.name] = {body = msg.functionBody,name = msg.name}
backend.sendMessage({protocol="TransformRegistered",name=msg.name},id)
elseif msg.protocol == "CallTransform" then
local func = (registeredTransforms[msg.name] or {body="function() end",name="not real"})
table.insert(msg.params,1,data)
local data = {pcall(load(func.body,func.name,"t",generateEnviorment()) or function () end,table.unpack(msg.params))}
if table.remove(data,1) == true then
backend.sendMessage({protocol="TransformResult",result = data,name=msg.name},id)
saveData()
else
backend.sendMessage({protocol="TransformError",error = data[1],name=msg.name},id)
loadData()
end
end
end
sleep(0)
end
end
local function receive()
while true do
local msg,id = backend.receiveMessage()
print(msg.protocol..": ",id)
message_queue[#message_queue+1] = {msg=msg,id=id}
end
end
print("starting stratum...")
parallel.waitForAny(process,receive)