mirror of
https://gitee.com/mirrors_PX4/PX4-Autopilot.git
synced 2026-07-07 19:20:34 +08:00
Daniel Agar
b6a17a6538
- new intrusive linked list container (c++ template) that sorts on insertion - primarily for convenience inspecting things in the system like uORB or WorkQueues - uorb status or top sorted alphabetically - work_queue status threads sorted by priority, then items sorted alphabetically within each
91 lines
2.6 KiB
C++
91 lines
2.6 KiB
C++
/****************************************************************************
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*
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* Copyright (C) 2019 PX4 Development Team. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name PX4 nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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/**
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* @file BlockingList.hpp
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*
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* A blocking intrusive linked list.
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*/
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#pragma once
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#include "IntrusiveSortedList.hpp"
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#include "LockGuard.hpp"
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#include <pthread.h>
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#include <stdlib.h>
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template<class T>
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class BlockingList : public IntrusiveSortedList<T>
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{
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public:
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~BlockingList()
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{
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pthread_mutex_destroy(&_mutex);
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pthread_cond_destroy(&_cv);
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}
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void add(T newNode)
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{
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LockGuard lg{_mutex};
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IntrusiveSortedList<T>::add(newNode);
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}
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bool remove(T removeNode)
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{
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LockGuard lg{_mutex};
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return IntrusiveSortedList<T>::remove(removeNode);
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}
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size_t size()
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{
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LockGuard lg{_mutex};
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return IntrusiveSortedList<T>::size();
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}
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void clear()
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{
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LockGuard lg{_mutex};
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IntrusiveSortedList<T>::clear();
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}
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pthread_mutex_t &mutex() { return _mutex; }
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private:
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pthread_mutex_t _mutex = PTHREAD_MUTEX_INITIALIZER;
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pthread_cond_t _cv = PTHREAD_COND_INITIALIZER;
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};
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