blob: a276811c0b79a426a9dad9f2e79657482aa7b35e (
plain) (
tree)
|
|
/**
* @file
*
* @ingroup RTEMSImplClassicTimer
*
* @brief This source file contains the implementation of
* rtems_timer_cancel().
*/
/*
* COPYRIGHT (c) 1989-2007.
* On-Line Applications Research Corporation (OAR).
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.org/license/LICENSE.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <rtems/rtems/timerimpl.h>
rtems_status_code rtems_timer_cancel(
rtems_id id
)
{
Timer_Control *the_timer;
ISR_lock_Context lock_context;
the_timer = _Timer_Get( id, &lock_context );
if ( the_timer != NULL ) {
Per_CPU_Control *cpu;
cpu = _Timer_Acquire_critical( the_timer, &lock_context );
_Timer_Cancel( cpu, the_timer );
_Timer_Release( cpu, &lock_context );
return RTEMS_SUCCESSFUL;
}
return RTEMS_INVALID_ID;
}
|