mirror of https://github.com/ARMmbed/mbed-os.git
63 lines
1.5 KiB
C++
63 lines
1.5 KiB
C++
/* mbed Microcontroller Library
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* Copyright (c) 2018-2018 ARM Limited
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* 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,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef MBED_ASYNC_OP_H
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#define MBED_ASYNC_OP_H
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#include "Mutex.h"
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#include "Semaphore.h"
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#include "LinkEntry.h"
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#include "LinkedListBase.h"
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class AsyncOp: public LinkEntry {
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public:
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/**
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* Construct a new AsyncOp object
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*
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* @param lock Mutex used to serialize the object or code calling complete
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* or NULL if a critical section is used
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*/
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AsyncOp(rtos::Mutex *lock);
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/**
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* Add this operation to the linked list to start it
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*/
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void start(LinkedListBase *list);
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/**
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* Wait for this asynchronous operation to complete
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*/
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void wait();
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/**
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* Mark this asynchronous operation as complete
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*
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* This wake the thread calling wait()
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*/
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void complete();
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private:
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void _lock();
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void _unlock();
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LinkedListBase *_list;
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rtos::Semaphore *_signal;
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rtos::Mutex *const _signal_lock;
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};
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#endif
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