_G.event = {}
local computer = require("computer")

function event.pull(name, timeout)
    local rawSignal = {}
    local signals_recieved_in_mean_time = {}
    local timeouts = 0
    if not timeout then
        timeout = 99999999999
    end

    while rawSignal[1] ~= name do
        -- pull any signal
        rawSignal = table.pack(computer.pullSignal(0.1))

        -- if no signal then add to time timeout
        if rawSignal[1] == nil then
            timeouts = timeouts + 0.1
        else
            if rawSignal[1] ~= name then
                -- not the signal, push to the signals we got in the mean time
                table.insert(signals_recieved_in_mean_time,rawSignal)
            else
                -- got the signal
                break
            end
        end
        if timeouts >= timeout then
            -- we never got the signal :(
            return nil
        end
    end

    -- rethrow all signals... they weren't what we wanted
    if #signals_recieved_in_mean_time > 0 then
        for i in ipairs(signals_recieved_in_mean_time) do
            computer.pushSignal(table.unpack(signals_recieved_in_mean_time[i]))
        end
    end

    return table.unpack(rawSignal)
end

return event