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/**
* @file
*
* @brief Deletes a POSIX Interval Timer
* @ingroup POSIXAPI
*/
/*
* 14.2.3 Delete a Per_process Timer, P1003.1b-1993, p. 266
*
* 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.
*/
#if HAVE_CONFIG_H
#include "config.h"
#endif
#include <time.h>
#include <errno.h>
#include <pthread.h>
#include <rtems/system.h>
#include <rtems/seterr.h>
#include <rtems/score/thread.h>
#include <rtems/score/watchdogimpl.h>
#include <rtems/posix/timerimpl.h>
int timer_delete(
timer_t timerid
)
{
/*
* IDEA: This function must probably stop the timer first and then delete it
*
* It will have to do a call to rtems_timer_cancel and then another
* call to rtems_timer_delete.
* The call to rtems_timer_delete will be probably unnecessary,
* because rtems_timer_delete stops the timer before deleting it.
*/
POSIX_Timer_Control *ptimer;
ISR_lock_Context lock_context;
_Objects_Allocator_lock();
ptimer = _POSIX_Timer_Get( timerid, &lock_context );
if ( ptimer != NULL ) {
Per_CPU_Control *cpu;
_Objects_Close( &_POSIX_Timer_Information, &ptimer->Object );
cpu = _POSIX_Timer_Acquire_critical( ptimer, &lock_context );
ptimer->state = POSIX_TIMER_STATE_FREE;
_Watchdog_Remove(
&cpu->Watchdog.Header[ PER_CPU_WATCHDOG_TICKS ],
&ptimer->Timer
);
_POSIX_Timer_Release( cpu, &lock_context );
_POSIX_Timer_Free( ptimer );
_Objects_Allocator_unlock();
return 0;
}
_Objects_Allocator_unlock();
rtems_set_errno_and_return_minus_one( EINVAL );
}
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