spacepaste

function process.spawn(f, env, name, path)
checkArg(1, f, "function")
checkArg(2, env, "table", "nil")
checkArg(3, name, "string", "nil")
checkArg(4, path, "string", "nil")
local process = findProcess()
if process then
env = env or process.env
end
if not path then
path = '<function>'
end
env = setmetatable({}, {__index=env or _G})
local thread = coroutine_create(f)
running[thread] = {
path = path,
command = name,
env = env,
data = setmetatable({}, {__index=process and process.data or nil}),
parent = process,
instances = setmetatable({}, {__mode="v"})
}
return thread
end