137 lines
5.2 KiB
C++
137 lines
5.2 KiB
C++
/* Copyright (c) 2015-2017, The Linux Foundation. All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions are
|
|
* met:
|
|
* * Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* * Redistributions in binary form must reproduce the above
|
|
* copyright notice, this list of conditions and the following
|
|
* disclaimer in the documentation and/or other materials provided
|
|
* with the distribution.
|
|
* * Neither the name of The Linux Foundation, nor the names of its
|
|
* contributors may be used to endorse or promote products derived
|
|
* from this software without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
|
|
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
|
|
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
|
|
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
|
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
|
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
|
|
* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
|
|
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
|
|
* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
|
|
* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*
|
|
*/
|
|
#ifndef __SYSTEM_STATUS_OSOBSERVER__
|
|
#define __SYSTEM_STATUS_OSOBSERVER__
|
|
|
|
#include <cinttypes>
|
|
#include <string>
|
|
#include <list>
|
|
#include <map>
|
|
#include <new>
|
|
#include <vector>
|
|
|
|
#include <MsgTask.h>
|
|
#include <DataItemId.h>
|
|
#include <IOsObserver.h>
|
|
#include <platform_lib_log_util.h>
|
|
|
|
namespace loc_core
|
|
{
|
|
/******************************************************************************
|
|
SystemStatusOsObserver
|
|
******************************************************************************/
|
|
using namespace std;
|
|
|
|
// Forward Declarations
|
|
class IDataItemCore;
|
|
template<typename CT, typename DIT> class IClientIndex;
|
|
template<typename CT, typename DIT> class IDataItemIndex;
|
|
|
|
struct SystemContext {
|
|
IDataItemSubscription* mSubscriptionObj;
|
|
IFrameworkActionReq* mFrameworkActionReqObj;
|
|
const MsgTask* mMsgTask;
|
|
|
|
inline SystemContext() :
|
|
mSubscriptionObj(NULL),
|
|
mFrameworkActionReqObj(NULL),
|
|
mMsgTask(NULL) {}
|
|
};
|
|
|
|
typedef map<IDataItemObserver*, list<DataItemId>> ObserverReqCache;
|
|
|
|
// Clients wanting to get data from OS/Framework would need to
|
|
// subscribe with OSObserver using IDataItemSubscription interface.
|
|
// Such clients would need to implement IDataItemObserver interface
|
|
// to receive data when it becomes available.
|
|
class SystemStatus;
|
|
class SystemStatusOsObserver : public IOsObserver {
|
|
|
|
public:
|
|
// ctor
|
|
SystemStatusOsObserver(
|
|
SystemStatus* systemstatus, const MsgTask* msgTask);
|
|
// dtor
|
|
~SystemStatusOsObserver();
|
|
|
|
// To set the subscription object
|
|
virtual void setSubscriptionObj(IDataItemSubscription* subscriptionObj);
|
|
|
|
// To set the framework action request object
|
|
inline void setFrameworkActionReqObj(IFrameworkActionReq* frameworkActionReqObj) {
|
|
mContext.mFrameworkActionReqObj = frameworkActionReqObj;
|
|
}
|
|
|
|
// IDataItemSubscription Overrides
|
|
virtual void subscribe(const list<DataItemId>& l, IDataItemObserver* client);
|
|
virtual void updateSubscription(const list<DataItemId>& l, IDataItemObserver* client);
|
|
virtual void requestData(const list<DataItemId>& l, IDataItemObserver* client);
|
|
virtual void unsubscribe(const list<DataItemId>& l, IDataItemObserver* client);
|
|
virtual void unsubscribeAll(IDataItemObserver* client);
|
|
|
|
// IDataItemObserver Overrides
|
|
virtual void notify(const list<IDataItemCore*>& dlist);
|
|
inline virtual void getName(string& name) {
|
|
name = mAddress;
|
|
}
|
|
|
|
// IFrameworkActionReq Overrides
|
|
virtual void turnOn(DataItemId dit, int timeOut = 0);
|
|
virtual void turnOff(DataItemId dit);
|
|
|
|
private:
|
|
SystemStatus* mSystemStatus;
|
|
SystemContext mContext;
|
|
const string mAddress;
|
|
IClientIndex<IDataItemObserver*, DataItemId>* mClientIndex;
|
|
IDataItemIndex<IDataItemObserver*, DataItemId>* mDataItemIndex;
|
|
map<DataItemId, IDataItemCore*> mDataItemCache;
|
|
map<DataItemId, int> mActiveRequestCount;
|
|
|
|
// Cache the subscribe and requestData till subscription obj is obtained
|
|
ObserverReqCache mSubscribeReqCache;
|
|
ObserverReqCache mReqDataCache;
|
|
void cacheObserverRequest(ObserverReqCache& reqCache,
|
|
const list<DataItemId>& l, IDataItemObserver* client);
|
|
|
|
// Helpers
|
|
void sendFirstResponse(const list<DataItemId>& l, IDataItemObserver* to);
|
|
void sendCachedDataItems(const list<DataItemId>& l, IDataItemObserver* to);
|
|
void updateCache(IDataItemCore* d, bool& dataItemUpdated);
|
|
inline void logMe(const list<DataItemId>& l) {
|
|
for (auto id : l) {
|
|
LOC_LOGD("DataItem %d", id);
|
|
}
|
|
}
|
|
};
|
|
|
|
} // namespace loc_core
|
|
|
|
#endif //__SYSTEM_STATUS__
|
|
|