mbed-os/platform/cxxsupport/mstd_mutex.cpp

51 lines
1.3 KiB
C++

/* mbed Microcontroller Library
* Copyright (c) 2019 ARM Limited
* SPDX-License-Identifier: Apache-2.0
*
* 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.
*/
#include <mstd_mutex>
#if MBED_CONF_RTOS_PRESENT
/* SharedPointer<Mutex> lazy-init kerfuffle will generate code - don't inline it */
namespace mstd {
// Lock and try lock use SingletonPtr::get() to lazy-init
void _Mutex_base::lock()
{
_pm.get()->lock();
}
bool _Mutex_base::try_lock()
{
return _pm.get()->trylock();
}
// Unlock knows it must have been initted, so optimise with get_no_init()
void _Mutex_base::unlock()
{
_pm.get_no_init()->unlock();
}
// And don't forget to destroy - SingletonPtr doesn't do it automatically
_Mutex_base::~_Mutex_base()
{
_pm.destroy();
}
} // namespace mstd
#endif