local function create( first, ... )
	if first ~= nil then
		return coroutine.create(first), create( ... )
    end
    return nil
end

local function runUntilLimit( _routines, _limit )
    local count = #_routines
    local living = count

    local tFilters = {}
    local eventData = {}
    while true do
    	for n=1,count do
    		local r = _routines[n]
    		if r then
    			if tFilters[r] == nil or tFilters[r] == eventData[1] or eventData[1] == "terminate" then
	    			local ok, param = coroutine.resume( r, unpack(eventData) )
					if not ok then
						error( param )
					else
						tFilters[r] = param
					end
					if coroutine.status( r ) == "dead" then
						_routines[n] = nil
						living = living - 1
						if living <= _limit then
							return n
						end
					end
				end
    		end
    	end
		for n=1,count do
    		local r = _routines[n]
			if r and coroutine.status( r ) == "dead" then
				_routines[n] = nil
				living = living - 1
				if living <= _limit then
					return n
				end
			end
		end
    	eventData = { os.pullEventRaw() }
    end
end

function waitForAny( ... )
    local routines = { create( ... ) }
    return runUntilLimit( routines, #routines - 1 )
end

function waitForAll( ... )
    local routines = { create( ... ) }
	runUntilLimit( routines, 0 )
end