Gambas Documentation

gb.signal

This component allows to ignore POSIX signals, or intercept them inside an event handler.

Classes

Signal

For more information about signals, see http://en.wikipedia.org/wiki/Signal_(computing).

Signals interrupt processes, but as Gambas is single-threaded, you will receive them from the event loop.

So, if you are using the SLEEP instruction for example, you will never see them.

Example

Public Sub Application_Signal(Signal As Integer)

  Print "Don't do that: I don't want to die during my sleep!"

End

Public Sub Main()

  ' Ignore the signal sent when you hit CTRL+Z in a terminal
  Signal[Signal.SIGTSTP].Ignore

  ' Catch the signal sent when you hit CTRL+C in a terminal
  Signal[Signal.SIGTERM].Catch

  ' Sleep one hour :-) But do not use the Sleep instruction, otherwise you won't see the signal!
  Wait(3600)

End