mirror of https://github.com/ARMmbed/mbed-os.git
74 lines
1.8 KiB
C++
74 lines
1.8 KiB
C++
/*
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* Copyright (c) 2013-2016, ARM Limited, All Rights Reserved
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* SPDX-License-Identifier: Apache-2.0
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*
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* Licensed under the Apache License, Version 2.0 (the "License"); you may
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* 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, WITHOUT
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* 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 MBEDMICRO_RTOS_MBED_THREADS_SYNCHRONIZED_INTEGRAL
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#define MBEDMICRO_RTOS_MBED_THREADS_SYNCHRONIZED_INTEGRAL
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#include <rtos.h>
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#include "LockGuard.h"
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/**
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* Thread safe wrapper for integral types.
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* @tparam T type of the integral
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*/
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template<typename T>
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class SynchronizedIntegral {
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public:
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SynchronizedIntegral(T value) : _mutex(), _value(value) { }
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// preincrement operator
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T operator++() {
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LockGuard lock(_mutex);
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return ++_value;
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}
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// predecrement operator
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T operator--() {
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LockGuard lock(_mutex);
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return --_value;
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}
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// post increment operator
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T operator++(int) {
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LockGuard lock(_mutex);
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return _value++;
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}
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// post decrement operator
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T operator--(int) {
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LockGuard lock(_mutex);
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return _value--;
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}
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// conversion operator, used also for <,>,<=,>=,== and !=
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operator T() const {
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LockGuard lock(_mutex);
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return _value;
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}
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// access to the internal mutex
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rtos::Mutex& internal_mutex() {
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return _mutex;
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}
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private:
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mutable rtos::Mutex _mutex;
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T _value;
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};
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#endif /* MBEDMICRO_RTOS_MBED_THREADS_SYNCHRONIZED_INTEGRAL */
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