Denislam Valeev / Mbed OS Nucleo_rtos_basic

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mbed-os/TESTS/mbedmicro-rtos-mbed/threads/SynchronizedIntegral.h@0:e056ac8fecf8, 2018-03-13 (annotated)

Committer:
valeyev
Date:
Tue Mar 13 07:17:50 2018 +0000
Revision:
0:e056ac8fecf8
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Who changed what in which revision?

UserRevisionLine numberNew contents of line
valeyev 0:e056ac8fecf8 1 /*
valeyev 0:e056ac8fecf8 2 * Copyright (c) 2013-2016, ARM Limited, All Rights Reserved
valeyev 0:e056ac8fecf8 3 * SPDX-License-Identifier: Apache-2.0
valeyev 0:e056ac8fecf8 4 *
valeyev 0:e056ac8fecf8 5 * Licensed under the Apache License, Version 2.0 (the "License"); you may
valeyev 0:e056ac8fecf8 6 * not use this file except in compliance with the License.
valeyev 0:e056ac8fecf8 7 * You may obtain a copy of the License at
valeyev 0:e056ac8fecf8 8 *
valeyev 0:e056ac8fecf8 9 * http://www.apache.org/licenses/LICENSE-2.0
valeyev 0:e056ac8fecf8 10 *
valeyev 0:e056ac8fecf8 11 * Unless required by applicable law or agreed to in writing, software
valeyev 0:e056ac8fecf8 12 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
valeyev 0:e056ac8fecf8 13 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
valeyev 0:e056ac8fecf8 14 * See the License for the specific language governing permissions and
valeyev 0:e056ac8fecf8 15 * limitations under the License.
valeyev 0:e056ac8fecf8 16 */
valeyev 0:e056ac8fecf8 17
valeyev 0:e056ac8fecf8 18 #ifndef MBEDMICRO_RTOS_MBED_THREADS_SYNCHRONIZED_INTEGRAL
valeyev 0:e056ac8fecf8 19 #define MBEDMICRO_RTOS_MBED_THREADS_SYNCHRONIZED_INTEGRAL
valeyev 0:e056ac8fecf8 20
valeyev 0:e056ac8fecf8 21 #include <rtos.h>
valeyev 0:e056ac8fecf8 22 #include "LockGuard.h"
valeyev 0:e056ac8fecf8 23
valeyev 0:e056ac8fecf8 24 /**
valeyev 0:e056ac8fecf8 25 * Thread safe wrapper for integral types.
valeyev 0:e056ac8fecf8 26 * @tparam T type of the integral
valeyev 0:e056ac8fecf8 27 */
valeyev 0:e056ac8fecf8 28 template<typename T>
valeyev 0:e056ac8fecf8 29 class SynchronizedIntegral {
valeyev 0:e056ac8fecf8 30 public:
valeyev 0:e056ac8fecf8 31 SynchronizedIntegral(T value) : _mutex(), _value(value) { }
valeyev 0:e056ac8fecf8 32
valeyev 0:e056ac8fecf8 33 // preincrement operator
valeyev 0:e056ac8fecf8 34 T operator++() {
valeyev 0:e056ac8fecf8 35 LockGuard lock(_mutex);
valeyev 0:e056ac8fecf8 36 return ++_value;
valeyev 0:e056ac8fecf8 37 }
valeyev 0:e056ac8fecf8 38
valeyev 0:e056ac8fecf8 39 // predecrement operator
valeyev 0:e056ac8fecf8 40 T operator--() {
valeyev 0:e056ac8fecf8 41 LockGuard lock(_mutex);
valeyev 0:e056ac8fecf8 42 return --_value;
valeyev 0:e056ac8fecf8 43 }
valeyev 0:e056ac8fecf8 44
valeyev 0:e056ac8fecf8 45 // post increment operator
valeyev 0:e056ac8fecf8 46 T operator++(int) {
valeyev 0:e056ac8fecf8 47 LockGuard lock(_mutex);
valeyev 0:e056ac8fecf8 48 return _value++;
valeyev 0:e056ac8fecf8 49 }
valeyev 0:e056ac8fecf8 50
valeyev 0:e056ac8fecf8 51 // post decrement operator
valeyev 0:e056ac8fecf8 52 T operator--(int) {
valeyev 0:e056ac8fecf8 53 LockGuard lock(_mutex);
valeyev 0:e056ac8fecf8 54 return _value--;
valeyev 0:e056ac8fecf8 55 }
valeyev 0:e056ac8fecf8 56
valeyev 0:e056ac8fecf8 57 // conversion operator, used also for <,>,<=,>=,== and !=
valeyev 0:e056ac8fecf8 58 operator T() const {
valeyev 0:e056ac8fecf8 59 LockGuard lock(_mutex);
valeyev 0:e056ac8fecf8 60 return _value;
valeyev 0:e056ac8fecf8 61 }
valeyev 0:e056ac8fecf8 62
valeyev 0:e056ac8fecf8 63 // access to the internal mutex
valeyev 0:e056ac8fecf8 64 rtos::Mutex& internal_mutex() {
valeyev 0:e056ac8fecf8 65 return _mutex;
valeyev 0:e056ac8fecf8 66 }
valeyev 0:e056ac8fecf8 67
valeyev 0:e056ac8fecf8 68 private:
valeyev 0:e056ac8fecf8 69 mutable rtos::Mutex _mutex;
valeyev 0:e056ac8fecf8 70 T _value;
valeyev 0:e056ac8fecf8 71 };
valeyev 0:e056ac8fecf8 72
valeyev 0:e056ac8fecf8 73 #endif /* MBEDMICRO_RTOS_MBED_THREADS_SYNCHRONIZED_INTEGRAL */