1
0
mirror of https://github.com/kepler155c/opus synced 2024-11-15 05:04:50 +00:00
opus/sys/apis/sync.lua
kepler155c@gmail.com a625b52bad lint
2017-10-08 17:45:01 -04:00

27 lines
513 B
Lua

local syncLocks = { }
local os = _G.os
return function(obj, fn)
local key = tostring(obj)
if syncLocks[key] then
local cos = tostring(coroutine.running())
table.insert(syncLocks[key], cos)
repeat
local _, co = os.pullEvent('sync_lock')
until co == cos
else
syncLocks[key] = { }
end
local s, m = pcall(fn)
local co = table.remove(syncLocks[key], 1)
if co then
os.queueEvent('sync_lock', co)
else
syncLocks[key] = nil
end
if not s then
error(m)
end
end