eb9030c891
Most tools used for compliance and SBOM generation use SPDX identifiers This change brings us a step closer to an easy SBOM generation. Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>
96 lines
3.5 KiB
C
96 lines
3.5 KiB
C
/****************************************************************************
|
|
* sched/timer/timer_gettime.c
|
|
*
|
|
* SPDX-License-Identifier: Apache-2.0
|
|
*
|
|
* Licensed to the Apache Software Foundation (ASF) under one or more
|
|
* contributor license agreements. See the NOTICE file distributed with
|
|
* this work for additional information regarding copyright ownership. The
|
|
* ASF licenses this file to you under the Apache License, Version 2.0 (the
|
|
* "License"); you may not use this file except in compliance with the
|
|
* License. You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
|
|
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
|
|
* License for the specific language governing permissions and limitations
|
|
* under the License.
|
|
*
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Included Files
|
|
****************************************************************************/
|
|
|
|
#include <nuttx/config.h>
|
|
|
|
#include <time.h>
|
|
#include <errno.h>
|
|
|
|
#include "clock/clock.h"
|
|
#include "timer/timer.h"
|
|
|
|
#ifndef CONFIG_DISABLE_POSIX_TIMERS
|
|
|
|
/****************************************************************************
|
|
* Public Functions
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Name: timer_gettime
|
|
*
|
|
* Description:
|
|
* The timer_gettime() function will store the amount of time until the
|
|
* specified timer, timerid, expires and the reload value of the timer
|
|
* into the space pointed to by the value argument. The it_value member
|
|
* of this structure will contain the amount of time before the timer
|
|
* expires, or zero if the timer is disarmed. This value is returned as
|
|
* the interval until timer expiration, even if the timer was armed with
|
|
* absolute time. The it_interval member of value will contain the reload
|
|
* value last set by timer_settime().
|
|
*
|
|
* Input Parameters:
|
|
* timerid - The pre-thread timer, previously created by the call to
|
|
* timer_create(), whose remaining time count will be returned..
|
|
*
|
|
* Returned Value:
|
|
* If the timer_gettime() succeeds, a value of 0 (OK) will be returned.
|
|
* If an error occurs, the value -1 (ERROR) will be returned, and errno
|
|
* set to indicate the error.
|
|
*
|
|
* EINVAL - The timerid argument does not correspond to an ID returned by
|
|
* timer_create() but not yet deleted by timer_delete().
|
|
*
|
|
* Assumptions/Limitations:
|
|
* Due to the asynchronous operation of this function, the time reported
|
|
* by this function could be significantly more than that actual time
|
|
* remaining on the timer at any time.
|
|
*
|
|
****************************************************************************/
|
|
|
|
int timer_gettime(timer_t timerid, FAR struct itimerspec *value)
|
|
{
|
|
FAR struct posix_timer_s *timer = timer_gethandle(timerid);
|
|
sclock_t ticks;
|
|
|
|
if (!timer || !value)
|
|
{
|
|
set_errno(EINVAL);
|
|
return ERROR;
|
|
}
|
|
|
|
/* Get the number of ticks before the underlying watchdog expires */
|
|
|
|
ticks = wd_gettime(&timer->pt_wdog);
|
|
|
|
/* Convert that to a struct timespec and return it */
|
|
|
|
clock_ticks2time(ticks, &value->it_value);
|
|
clock_ticks2time(timer->pt_delay, &value->it_interval);
|
|
return OK;
|
|
}
|
|
|
|
#endif /* CONFIG_DISABLE_POSIX_TIMERS */
|