The official Mbed 2 C/C++ SDK provides the software platform and libraries to build your applications.
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mbed 2
This is the mbed 2 library. If you'd like to learn about Mbed OS please see the mbed-os docs.
platform/ScopedRomWriteLock.h
- Committer:
- AnnaBridge
- Date:
- 2019-02-20
- Revision:
- 172:65be27845400
File content as of revision 172:65be27845400:
/* mbed Microcontroller Library * Copyright (c) 2018 ARM Limited * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ #ifndef MBED_SCOPEDROMWRITELOCK_H #define MBED_SCOPEDROMWRITELOCK_H #include "platform/mbed_mpu_mgmt.h" #include "platform/NonCopyable.h" namespace mbed { /** \addtogroup platform */ /** @{*/ /** RAII object for disabling, then restoring ROM write never mode * Usage: * @code * * void f() { * // some code here * { * ScopedRomWriteLock make_ram_executable; * // Code in this block is allowed to write to ROM * } * // Writing to ROM is no longer allowed * } * @endcode */ class ScopedRomWriteLock : private mbed::NonCopyable<ScopedRomWriteLock> { public: /** * Allow writing to ROM * * Increment the ROM write lock to ensure code can * write to ROM. This class uses RAII to allow * writing to ROM while it is in scope. */ ScopedRomWriteLock() { mbed_mpu_manager_lock_rom_write(); } /** * Restore previous write to ROM settings * * Decrement the ROM write lock to return ROM write * to its prior state. */ ~ScopedRomWriteLock() { mbed_mpu_manager_unlock_rom_write(); } }; /**@}*/ } #endif