blob: cdb2cb8ee65fdc3c8ee3f72a48b0592ee2f7301a [file] [log] [blame]
/*
*
* Copyright (c) 2020 Project CHIP Authors
* Copyright (c) 2019 Nest Labs, Inc.
*
* 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.
*/
/**
* @file
* Provides an implementation of the ThreadStackManager object
* for the platforms using the OpenThread stack.
*/
#pragma once
#include <platform/CHIPDeviceEvent.h>
#include <platform/OpenThread/GenericThreadStackManagerImpl_OpenThread.h>
#include "EventFlags.h"
namespace chip {
namespace DeviceLayer {
/**
* Concrete implementation of the ThreadStackManager singleton object for the platform.
*/
class ThreadStackManagerImpl final : public ThreadStackManager,
public Internal::GenericThreadStackManagerImpl_OpenThread<ThreadStackManagerImpl>
{
// Allow the ThreadStackManager interface class to delegate method calls to
// the implementation methods provided by this class.
friend class ThreadStackManager;
public:
// ===== Methods that implement the ThreadStackManager abstract interface.
CHIP_ERROR _InitThreadStack();
void SignalThreadActivityPending();
void SignalThreadActivityPendingFromISR();
inline bool IsCurrentTask(void) { return wiced_rtos_is_current_thread(mThread) == WICED_SUCCESS; }
protected:
// ===== Methods that implement the ThreadStackManager abstract interface.
CHIP_ERROR _StartThreadTask();
void _LockThreadStack();
bool _TryLockThreadStack();
void _UnlockThreadStack();
private:
// ===== Members for internal use by the following friends.
friend ThreadStackManager & ::chip::DeviceLayer::ThreadStackMgr(void);
friend ThreadStackManagerImpl & ::chip::DeviceLayer::ThreadStackMgrImpl(void);
wiced_thread_t * mThread;
EventFlags mEventFlags;
wiced_mutex_t * mMutex;
static ThreadStackManagerImpl sInstance;
// ===== Private members for use by this class only.
void ThreadTaskMain(void);
static void ThreadTaskMain(uint32_t arg);
static constexpr uint32_t kActivityPendingEventFlag = 1 << 0;
static constexpr uint32_t kActivityPendingFromISREventFlag = 1 << 1;
};
/**
* Returns the public interface of the ThreadStackManager singleton object.
*
* Chip applications should use this to access features of the ThreadStackManager object
* that are common to all platforms.
*/
inline ThreadStackManager & ThreadStackMgr(void)
{
return ThreadStackManagerImpl::sInstance;
}
/**
* Returns the platform-specific implementation of the ThreadStackManager singleton object.
*
* Chip applications can use this to gain access to features of the ThreadStackManager
* that are specific to the platforms.
*/
inline ThreadStackManagerImpl & ThreadStackMgrImpl(void)
{
return ThreadStackManagerImpl::sInstance;
}
} // namespace DeviceLayer
} // namespace chip