source: rtems/cpukit/rtems/src/timerdelete.c

/* SPDX-License-Identifier: BSD-2-Clause */

/**
 * @file
 *
 * @ingroup RTEMSImplClassicTimer
 *
 * @brief This source file contains the implementation of
 *   rtems_timer_delete().
 */

/*
 *  COPYRIGHT (c) 1989-2007.
 *  On-Line Applications Research Corporation (OAR).
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#include <rtems/rtems/timerimpl.h>

rtems_status_code rtems_timer_delete(
  rtems_id id
)
{
  Timer_Control    *the_timer;
  ISR_lock_Context  lock_context;

  _Objects_Allocator_lock();

  the_timer = _Timer_Get( id, &lock_context );
  if ( the_timer != NULL ) {
    Per_CPU_Control *cpu;

    _Objects_Close( &_Timer_Information, &the_timer->Object );
    cpu = _Timer_Acquire_critical( the_timer, &lock_context );
    _Timer_Cancel( cpu, the_timer );
    _Timer_Release( cpu, &lock_context );
    _Timer_Free( the_timer );
    _Objects_Allocator_unlock();
    return RTEMS_SUCCESSFUL;
  }

  _Objects_Allocator_unlock();
  return RTEMS_INVALID_ID;
}