42 lines
1.1 KiB
Lua
42 lines
1.1 KiB
Lua
--[[
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https://github.com/overextended/ox_lib
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This file is licensed under LGPL-3.0 or higher <https://www.gnu.org/licenses/lgpl-3.0.en.html>
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Copyright © 2025 Linden <https://github.com/thelindat>
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]]
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---Yields the current thread until a non-nil value is returned by the function.
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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 | false Error out after `~x` ms. Defaults to 1000, unless set to `false`.
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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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if type(timeout) ~= 'number' then timeout = 1000 end
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end
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local start = timeout and GetGameTimer()
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while value == nil do
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Wait(0)
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local elapsed = timeout and GetGameTimer() - start
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if elapsed and elapsed > timeout then
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return error(('%s (waited %.1fms)'):format(errMessage or 'failed to resolve callback', elapsed), 2)
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end
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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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