80 lines
2.7 KiB
C
80 lines
2.7 KiB
C
/****************************************************************************
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* apps/examples/watched/watched.h
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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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#ifndef __APPS_EXAMPLES_WATCHER_WATCHED_H
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#define __APPS_EXAMPLES_WATCHER_WATCHED_H
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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 <signal.h>
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/****************************************************************************
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* Public Types
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****************************************************************************/
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struct watcher_info_s
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{
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int sub_cmd;
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int unsub_cmd;
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int feed_cmd;
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int signal;
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pid_t watcher_pid;
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const char info_file_name[];
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};
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struct request_s
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{
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pid_t task_id;
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volatile int code;
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};
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struct watched_info_s
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{
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struct request_s sub_request;
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struct request_s unsub_request;
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struct request_s feed_request;
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union sigval sub_value;
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union sigval unsub_value;
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union sigval feed_value;
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};
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/****************************************************************************
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* Public Data
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****************************************************************************/
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/****************************************************************************
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* Public Function Prototypes
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****************************************************************************/
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bool watched_is_watcher_on(void);
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int watched_read_watcher_info(struct watched_info_s *info);
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int watched_subscribe(struct watched_info_s *info);
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int watched_unsubscribe(struct watched_info_s *info);
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int watched_feed_dog(struct watched_info_s *info);
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#endif /* __APPS_EXAMPLES_WATCHER_WATCHED_H */
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