Get the time since given process is started., Получить время с момента запуска данного процесса. Опции

[neves]

Is there any lua function to get the time since given process is started?
Есть ли какая-нибудь функция lua для получения времени с момента запуска данного процесса?

[cirus]

Код

--lua
local t = os.clock()

while true do
    log (os.clock() - t)
    wait (100)
end

[neves]

Код

--lua
local t = os.clock()

while true do
    log (os.clock() - t)
    wait (100)
end

Thanks for the fast reply, but that's not what I need.
Example:
I bind given script to 'calculator.exe', and I wanna know at what time 'calculator.exe' was started or for how long calcualtor.exe is running.
For what I need this? I just want to make script which checks if process is running for more than 3 hours.