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rtlinux-3.2源码

/*
 * Copyright (C) 1997 by the University of Kansas Center for Research,
 * Inc.  This software was developed by the Information and
 * Telecommunication Technology Center (ITTC) at the University of
 * Kansas.  Partial funding for this project was provided by Sprint. This
 * software may be used and distributed according to the terms of the GNU
 * Public License, incorporated herein by reference.  Neither ITTC nor
 * Sprint accept any liability whatsoever for this product.
 *
 * This project was developed under the direction of Dr. Douglas Niehaus.
 *
 * Authors: Shyam Pather, Balaji Srinivasan
 *
 * Please send bug-reports/suggestions/comments to [e-mail]
 *
 * Further details about this project can be obtained at
 *    http://hegel.ittc.ukans.edu/projects/posix/
 */          

  Addapted by J. Vidal <[e-mail]> to RTLinux 10-12-02.  
******************************************************************

TEST: 2timers.c
 * This program demonstrates the use of POSIX.4 interval timers without 
 * queued signals. It simply creates a POSIX.4 interval timer that sends
 * a normal signal when it expires. The handler for this signal prints
 * a message, and increments a count. When the count reaches MAX_EXPIRATIONS,
 * the timer is deleted, and the program exits. 
	 * Set up the signal event that will occur when the timer 
	 * expires. 
	 * Create and set the timer.
	 * Delete the timer.
	 * Initialize the timer setting structure.
	 * Set up and install a signal handler for the signal that 
	 * the timer will send. 
	 * Busy wait until the timer expires MAX_EXPIRATIONS number 
	 * of times.

******************************************************************

TEST: timers.c
	 * Test to see if timer goes off immediately if not a future time is
	 * provided with TIMER_ABSTIME 
	 * test to check timer cancellation by deletion
         * Test to see if timer goes off immediately if not a future time is
         * provided with TIMER_ABSTIME

******************************************************************