Line data    Source code

       1              : /********************************************************************************
       2              :  * Copyright (c) 2024 Accenture
       3              :  *
       4              :  * This program and the accompanying materials are made available under the
       5              :  * terms of the Apache License Version 2.0 which is available at
       6              :  * https://www.apache.org/licenses/LICENSE-2.0
       7              :  *
       8              :  * SPDX-License-Identifier: Apache-2.0
       9              :  ********************************************************************************/
      10              : 
      11              : #pragma once
      12              : 
      13              : #include "interrupts/suspendResumeAllInterrupts.h"
      14              : 
      15              : namespace interrupts
      16              : {
      17              : class SuspendResumeAllInterruptsScopedLock
      18              : {
      19              : public:
      20              :     // [PUBLICAPI_START]
      21              :     /**
      22              :      * Create a lock object instance with disabling of all interrupts
      23              :      * Store the current interrupt state on instance creation in a private member variable
      24              :      */
      25         8366 :     SuspendResumeAllInterruptsScopedLock()
      26         8366 :     : fOldMachineStateRegisterValue(getMachineStateRegisterValueAndSuspendAllInterrupts())
      27         8366 :     {}
      28              : 
      29              :     /**
      30              :      * Destroy the lock object instance and restore the internally stored interrupt state from
      31              :      * before this object instance has been created
      32              :      */
      33         8366 :     ~SuspendResumeAllInterruptsScopedLock() { resumeAllInterrupts(fOldMachineStateRegisterValue); }
      34              : 
      35              :     // [PUBLICAPI_END]
      36              : 
      37              : private:
      38              :     uint32_t fOldMachineStateRegisterValue;
      39              : };
      40              : 
      41              : } /* namespace interrupts */