2016-12-11 14:24:52 -05:00
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local syncLocks = { }
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2017-10-08 17:45:01 -04:00
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local os = _G.os
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2016-12-11 14:24:52 -05:00
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return function(obj, fn)
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local key = tostring(obj)
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if syncLocks[key] then
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local cos = tostring(coroutine.running())
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table.insert(syncLocks[key], cos)
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repeat
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local _, co = os.pullEvent('sync_lock')
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until co == cos
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else
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syncLocks[key] = { }
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end
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local s, m = pcall(fn)
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local co = table.remove(syncLocks[key], 1)
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if co then
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os.queueEvent('sync_lock', co)
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else
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syncLocks[key] = nil
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end
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if not s then
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error(m)
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end
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end
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