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addons/sam-master/lua/sam/libs/sh_async_netstream.lua

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+--[[
+| This file was obtained through the combined efforts
+| of Madbluntz & Plymouth Antiquarian Society.
+|
+| Credits: lifestorm, Gregory Wayne Rossel JR.,
+| 	Maloy, DrPepper10 @ RIP, Atle!
+|
+| Visit for more: https://plymouth.thetwilightzone.ru/
+--]]
+
+if SAM_LOADED then return end
+
+local netstream = sam.netstream
+netstream.async = {}
+
+if SERVER then
+	local IsValid = IsValid
+	function netstream.async.Hook(name, fn, check)
+		netstream.Hook(name, function(ply, i, ...)
+			if not sam.isnumber(i) then return end
+			local res = function(...)
+				if IsValid(ply) then
+					netstream.Start(ply, name, i, ...)
+				end
+			end
+			fn(res, ply, ...)
+		end, check)
+	end
+else
+	local count = 0
+	local receivers = {}
+
+	local hook_fn = function(i, ...)
+		local receiver = receivers[i]
+		if receiver[2] then
+			receiver[2]()
+		end
+		receiver[1]:resolve(...)
+		receivers[i] = nil
+	end
+
+	function netstream.async.Start(name, func_to_call, ...)
+		local promise = sam.Promise.new()
+		count = count + 1
+		receivers[count] = {promise, func_to_call}
+		netstream.Hook(name, hook_fn)
+		if func_to_call then
+			func_to_call()
+		end
+		netstream.Start(name, count, ...)
+		return promise
+	end
+end