Add files

async.lua

@@ -0,0 +1,82 @@
+if Citizen and Citizen.CreateThread then
+	CreateThread = Citizen.CreateThread
+end
+
+Async = {}
+
+function Async.parallel(tasks, cb)
+
+	local remaining = #tasks
+	local results   = {}
+
+	for i=1, #tasks, 1 do
+		
+		CreateThread(function()
+			
+			tasks[i](function(result)
+				
+				table.insert(results, result)
+				
+				remaining = remaining - 1;
+
+				if remaining == 0 then
+					cb(results)
+				end
+
+			end)
+
+		end)
+
+	end
+
+end
+
+function Async.parallelLimit(tasks, limit, cb)
+
+	local remaining = #tasks
+	local running   = 0
+	local queue     = {}
+	local results   = {}
+
+	for i=1, #tasks, 1 do
+		table.insert(queue, tasks[i])
+	end
+
+	local function processQueue()
+
+		if #queue == 0 then
+			return
+		end
+
+		while running < limit and #queue > 0 do
+			
+			local task = table.remove(queue, 1)
+			
+			running = running + 1
+
+			task(function(result)
+				
+				table.insert(results, result)
+				
+				remaining = remaining - 1;
+				running   = running - 1
+
+				if remaining == 0 then
+					cb(results)
+				end
+
+			end)
+
+		end
+
+		CreateThread(processQueue)
+
+	end
+
+	processQueue()
+
+end
+
+function Async.series(tasks, cb)
+	Async.parallelLimit(tasks, 1, cb)
+end