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Top Forums Shell Programming and Scripting Exit while loop on execute script Post 302900784 by armatron on Thursday 8th of May 2014 04:04:24 PM
Old 05-08-2014
Thanks!

I put code to my script but I can not kill subprocess ALRM, so I have the same problem: timer doesn't restart back to 10s on condition "rc1_restart".

Here is my code:
Code:
#!/bin/bash

def_sleep_time=10

if [ $1 = "rc1_stop" ]; then
   echo $(date) ': switch hdmi to rc1 stop' >> /home/pi/temp_rc
   def_sleep_time=0 #this should stop timer

elif [ $1 = "rc1_restart" ]; then
   echo $(date) ': switch hdmi to rc1 restart' >> /home/pi/temp_rc
   kill -ALRM # this should reset timer

fi

trap 'reset_counter' ALRM
reset_counter() {
  time_delay=$def_sleep_time
}

reset_counter

until [ $time_delay -eq 0 ]
do
  sleep 1
  echo "timer coutdown: $time_delay" >> /home/pi/temp_rc
  time_delay=$((time_delay-1))

  if [ $time_delay -eq 0 ]; then
     echo "timer expired" >> /home/pi/temp_rc
  fi
done


Last edited by armatron; 05-09-2014 at 02:40 AM..
 

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Xacobeo::Timer(3pm)					User Contributed Perl Documentation				       Xacobeo::Timer(3pm)

NAME
Xacobeo::Timer - A custom made timer. SYNOPSIS
use Xacobeo::Timer; # As a one time use my $timer = Xacobeo::Timer->start("Long operation"); do_long_operation(); $timer->elapsed(); # Displays the time elapsed # A simple stop watch (the destructor displays the time elapsed) my $TIMER = Xacobeo::Timer->new("Method calls"); sub hotspot { $TIMER->start(); # Very slow stuff here $TIMER->stop(); } DESCRIPTION
This package provides a very simple timer. This timer is used for finding hot spots in the application. The timer is quite simple it provides the method "start" that starts the timer and the method "stop" that stops the timer and accumulates the elapsed time. The method "show" can be used to print the time elapsed so far while the method "elapsed" returns the time elapsed so far. When an instance of this class dies (because it was undefed or collected by the garbage collector) the builtin Perl desctrutor will automatically call the method "show". But if the method show or elapsed was called during the lifetime of the instance then the destructor will not invoke the method show. METHODS
The package defines the following methods: new Creates a new Timer. Parameters: o $name (Optional) The name of the timer. start Starts the timer. If this sub is called without a blessed instance then a new Timer will be created. Parameters: o $name (optional) The name is used only when called without a blessed instance. stop Stops the timer and adds accumulates the elapsed time. If the timer wasn't started previously this results in a no-op. show Prints the elapsed time. This method stops the timer if it was started previously and wasn't stopped. elapsed Returns the total time elapsed so far. If the timer was already started the pending time will not be taking into account. AUTHORS
Emmanuel Rodriguez <potyl@cpan.org>. COPYRIGHT AND LICENSE
Copyright (C) 2008,2009 by Emmanuel Rodriguez. This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself, either Perl version 5.8.8 or, at your option, any later version of Perl 5 you may have available. perl v5.14.2 2011-11-16 Xacobeo::Timer(3pm)
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