Plan 9 from Bell Labs’s /usr/web/sources/contrib/steve/root/sys/src/c++/lib/task/timer.C

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Distributed under the MIT License.
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/*ident	"@(#)C++env:lib/task/task/timer.c	1.2" */
/**************************************************************************
			Copyright (c) 1984 AT&T
	  		  All Rights Reserved  	

	THIS IS UNPUBLISHED PROPRIETARY SOURCE CODE OF AT&T
	
	The copyright notice above does not evidence any   	
	actual or intended publication of such source code.

*****************************************************************************/
#include <task.h>

timer::timer(long d)
{
	s_state = IDLE;
	insert(d, (object*)this);
}

timer::~timer()
{
	if (s_state != TERMINATED) task_error(E_TIMERDEL, this);
}

void
timer::reset(long d)
{
	remove();
	insert(d, (object*)this);
}

void
timer::print(int n, int baseClass)
{ 
	if (!baseClass)
		printf("timer %ld == clock+%ld\n",s_time,s_time - get_clock());

	sched::print(n, 1);
}

void
timer::resume()  // time is up; "delete" timer & schedule next task
{
	s_state = TERMINATED;
	alert();
	schedule();
}

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