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de5973268b
The current event implementation relies on a dedicated wait object,
which introduces several issues:
1. Increases memory usage
2. Complicates the event logic
3. Makes the API design less clean, as it requires a separate
nxevent_tickwait_wait() function
This patch removes the event’s dependency on the wait object
and eliminates the nxevent_tickwait_wait() API accordingly.
BREAKING CHANGE: this commit removed the nxevent_tickwait_wait function
so the related docs should be updated accordingly
Signed-off-by: Chengdong Wang wangchengdong@lixiang.com
77 lines
2.4 KiB
C
77 lines
2.4 KiB
C
/****************************************************************************
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* sched/event/event_waitirq.c
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <sched.h>
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#include <assert.h>
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#include <errno.h>
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#include <nuttx/irq.h>
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#include <nuttx/arch.h>
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#include "sched/sched.h"
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#include "event/event.h"
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: nxevent_wait_irq
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*
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* Description:
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* An error event has occurred and the event wait must be terminated with
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* an error.
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*
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****************************************************************************/
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void nxevent_wait_irq(FAR struct tcb_s *wtcb, int errcode)
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{
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FAR struct tcb_s *rtcb = this_task();
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FAR nxevent_t *event = wtcb->waitobj;
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/* Remove the task from the event waiting list */
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dq_rem((FAR dq_entry_t *)wtcb, EVENT_WAITLIST(event));
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/* Indicate that the wait is over */
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wtcb->waitobj = NULL;
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/* Store the error code for the thread */
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wtcb->errcode = errcode;
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/* Add the task to the ready-to-run list and perform a context
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* switch if one is needed.
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*/
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if (nxsched_add_readytorun(wtcb))
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{
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up_switch_context(this_task(), rtcb);
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}
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}
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