BPanther's Neutrino Forum

Code: Alles auswählen

local posix = require "posix"
local pid = posix.fork()

if pid == 0 then 
  -- this is the child process
  print(posix.getpid('pid') .. ": child process")

else 
  -- this is the parent process
  print(posix.getpid('pid') .. ": parent process")

  -- wait for the child process to finish
  posix.wait(pid) 

end

-- both processes get here
print(posix.getpid('pid') .. ": quitting")

Code: Alles auswählen

timeout      = 120     -- Wartezyklen (jeweils 500 ms)

Code: Alles auswählen

...
	repeat
		os.execute('wget -q -O - '..image..' > /tmp/iss-location.jpg')
		if  size_x == size_tv_x
		then
			p_tv:paint()
		else
			start_x = math.random(x_beg, x_end)
			start_y = math.random(y_beg, y_end)
			p:hide()
			p = cpicture.new{x=start_x, y=start_y, dx=size_x, dy=size_y, image='/tmp/iss-location.jpg'}
			p:paint()
		end
		i = 0
		repeat
			i = i + 1
			msg, data = n:GetInput(500)
		until msg == RC.ok or msg == RC.home or msg == RC.red or i == timeout

Code: Alles auswählen

local posix = require "posix"
local pid = posix.fork()

if pid == 0 then 
  -- Kindprozess
  tick = 0
  time = 0
  running = true

  function sleep(n)
    os.execute("sleep " .. tonumber(n))
  end

  function change_picture()
    print("Code zum Bild wechseln")
  end

  function timer()
    tick = tick+1
    if tick == 60 then
      time = time+1
      tick = 0
    end
    if tick == 15 then
      change_picture()
    end
    sleep(1)
  end

  running = true
  while running do
    timer()
  end
end

-- restliches Programm