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Dependents:   cobaLCDJoyMotor_Thread odometry_omni_3roda_v3 odometry_omni_3roda_v1 odometry_omni_3roda_v2 ... more

TESTS/mbedmicro-rtos-mbed/threads/SynchronizedIntegral.h@0:b74591d5ab33, 2017-12-11 (annotated)

Committer:
be_bryan
Date:
Mon Dec 11 17:54:04 2017 +0000
Revision:
0:b74591d5ab33
motor ++

Who changed what in which revision?

UserRevisionLine numberNew contents of line
be_bryan 0:b74591d5ab33 1 /*
be_bryan 0:b74591d5ab33 2 * Copyright (c) 2013-2016, ARM Limited, All Rights Reserved
be_bryan 0:b74591d5ab33 3 * SPDX-License-Identifier: Apache-2.0
be_bryan 0:b74591d5ab33 4 *
be_bryan 0:b74591d5ab33 5 * Licensed under the Apache License, Version 2.0 (the "License"); you may
be_bryan 0:b74591d5ab33 6 * not use this file except in compliance with the License.
be_bryan 0:b74591d5ab33 7 * You may obtain a copy of the License at
be_bryan 0:b74591d5ab33 8 *
be_bryan 0:b74591d5ab33 9 * http://www.apache.org/licenses/LICENSE-2.0
be_bryan 0:b74591d5ab33 10 *
be_bryan 0:b74591d5ab33 11 * Unless required by applicable law or agreed to in writing, software
be_bryan 0:b74591d5ab33 12 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
be_bryan 0:b74591d5ab33 13 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
be_bryan 0:b74591d5ab33 14 * See the License for the specific language governing permissions and
be_bryan 0:b74591d5ab33 15 * limitations under the License.
be_bryan 0:b74591d5ab33 16 */
be_bryan 0:b74591d5ab33 17
be_bryan 0:b74591d5ab33 18 #ifndef MBEDMICRO_RTOS_MBED_THREADS_SYNCHRONIZED_INTEGRAL
be_bryan 0:b74591d5ab33 19 #define MBEDMICRO_RTOS_MBED_THREADS_SYNCHRONIZED_INTEGRAL
be_bryan 0:b74591d5ab33 20
be_bryan 0:b74591d5ab33 21 #include <rtos.h>
be_bryan 0:b74591d5ab33 22 #include "LockGuard.h"
be_bryan 0:b74591d5ab33 23
be_bryan 0:b74591d5ab33 24 /**
be_bryan 0:b74591d5ab33 25 * Thread safe wrapper for integral types.
be_bryan 0:b74591d5ab33 26 * @tparam T type of the integral
be_bryan 0:b74591d5ab33 27 */
be_bryan 0:b74591d5ab33 28 template<typename T>
be_bryan 0:b74591d5ab33 29 class SynchronizedIntegral {
be_bryan 0:b74591d5ab33 30 public:
be_bryan 0:b74591d5ab33 31 SynchronizedIntegral(T value) : _mutex(), _value(value) { }
be_bryan 0:b74591d5ab33 32
be_bryan 0:b74591d5ab33 33 // preincrement operator
be_bryan 0:b74591d5ab33 34 T operator++() {
be_bryan 0:b74591d5ab33 35 LockGuard lock(_mutex);
be_bryan 0:b74591d5ab33 36 return ++_value;
be_bryan 0:b74591d5ab33 37 }
be_bryan 0:b74591d5ab33 38
be_bryan 0:b74591d5ab33 39 // predecrement operator
be_bryan 0:b74591d5ab33 40 T operator--() {
be_bryan 0:b74591d5ab33 41 LockGuard lock(_mutex);
be_bryan 0:b74591d5ab33 42 return --_value;
be_bryan 0:b74591d5ab33 43 }
be_bryan 0:b74591d5ab33 44
be_bryan 0:b74591d5ab33 45 // post increment operator
be_bryan 0:b74591d5ab33 46 T operator++(int) {
be_bryan 0:b74591d5ab33 47 LockGuard lock(_mutex);
be_bryan 0:b74591d5ab33 48 return _value++;
be_bryan 0:b74591d5ab33 49 }
be_bryan 0:b74591d5ab33 50
be_bryan 0:b74591d5ab33 51 // post decrement operator
be_bryan 0:b74591d5ab33 52 T operator--(int) {
be_bryan 0:b74591d5ab33 53 LockGuard lock(_mutex);
be_bryan 0:b74591d5ab33 54 return _value--;
be_bryan 0:b74591d5ab33 55 }
be_bryan 0:b74591d5ab33 56
be_bryan 0:b74591d5ab33 57 // conversion operator, used also for <,>,<=,>=,== and !=
be_bryan 0:b74591d5ab33 58 operator T() const {
be_bryan 0:b74591d5ab33 59 LockGuard lock(_mutex);
be_bryan 0:b74591d5ab33 60 return _value;
be_bryan 0:b74591d5ab33 61 }
be_bryan 0:b74591d5ab33 62
be_bryan 0:b74591d5ab33 63 // access to the internal mutex
be_bryan 0:b74591d5ab33 64 rtos::Mutex& internal_mutex() {
be_bryan 0:b74591d5ab33 65 return _mutex;
be_bryan 0:b74591d5ab33 66 }
be_bryan 0:b74591d5ab33 67
be_bryan 0:b74591d5ab33 68 private:
be_bryan 0:b74591d5ab33 69 mutable rtos::Mutex _mutex;
be_bryan 0:b74591d5ab33 70 T _value;
be_bryan 0:b74591d5ab33 71 };
be_bryan 0:b74591d5ab33 72
be_bryan 0:b74591d5ab33 73 #endif /* MBEDMICRO_RTOS_MBED_THREADS_SYNCHRONIZED_INTEGRAL */