KingMcDonalds
36 lines
833 B
Lua
36 lines
833 B
Lua
---Yields the current thread until a non-nil value is returned by the function.
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---Errors after timeout (default 1000) iterations.
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---@generic T
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---@param cb fun(): T?
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---@param errMessage string?
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---@param timeout number?
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---@return T?
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---@async
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function lib.waitFor(cb, errMessage, timeout)
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local value = cb()
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if value ~= nil then return value end
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if timeout or timeout == nil then
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timeout = tonumber(timeout) or 1000
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end
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local start = GetGameTimer()
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local i = 0
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while value == nil do
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if timeout then
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i += 1
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if i > timeout then return error(('%s (waited %.1fms)'):format(errMessage or 'failed to resolve callback', (GetGameTimer() - start) / 1000), 2) end
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end
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Wait(0)
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value = cb()
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end
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return value
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end
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return lib.waitFor
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