71 lines
2.5 KiB
C
71 lines
2.5 KiB
C
/****************************************************************************
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* net/can/can_notifier.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 <sys/types.h>
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#include <assert.h>
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#include <nuttx/wqueue.h>
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#include "can/can.h"
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#ifdef CONFIG_NET_CAN_NOTIFIER
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: can_readahead_signal
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*
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* Description:
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* Read-ahead data has been buffered. Signal all threads waiting for
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* read-ahead data to become available.
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*
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* When read-ahead data becomes available, *all* of the workers waiting
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* for read-ahead data will be executed. If there are multiple workers
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* waiting for read-ahead data then only the first to execute will get the
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* data. Others will need to call can_readahead_notifier_setup() once
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* again.
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*
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* Input Parameters:
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* conn - The CAN connection where read-ahead data was just buffered.
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*
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* Returned Value:
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* None.
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*
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****************************************************************************/
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void can_readahead_signal(FAR struct can_conn_s *conn)
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{
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/* This is just a simple wrapper around work_notifier_signal(). */
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work_notifier_signal(WORK_CAN_READAHEAD, conn);
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}
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#endif /* CONFIG_NET_CAN_NOTIFIER */
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