| /* 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. |
| * |
| */ |
| #define LOG_TAG "LocSvc_SystemStatusOsObserver" |
| |
| #include <algorithm> |
| #include <SystemStatus.h> |
| #include <SystemStatusOsObserver.h> |
| #include <IDataItemCore.h> |
| #include <DataItemsFactoryProxy.h> |
| |
| namespace loc_core |
| { |
| template <typename CINT, typename COUT> |
| COUT SystemStatusOsObserver::containerTransfer(CINT& inContainer) { |
| COUT outContainer(0); |
| for (auto item : inContainer) { |
| outContainer.insert(outContainer.begin(), item); |
| } |
| return outContainer; |
| } |
| |
| SystemStatusOsObserver::~SystemStatusOsObserver() { |
| // Close data-item library handle |
| DataItemsFactoryProxy::closeDataItemLibraryHandle(); |
| |
| // Destroy cache |
| for (auto each : mDataItemCache) { |
| if (nullptr != each.second) { |
| delete each.second; |
| } |
| } |
| |
| mDataItemCache.clear(); |
| } |
| |
| void SystemStatusOsObserver::setSubscriptionObj(IDataItemSubscription* subscriptionObj) |
| { |
| struct SetSubsObj : public LocMsg { |
| ObserverContext& mContext; |
| IDataItemSubscription* mSubsObj; |
| inline SetSubsObj(ObserverContext& context, IDataItemSubscription* subscriptionObj) : |
| mContext(context), mSubsObj(subscriptionObj) {} |
| void proc() const { |
| mContext.mSubscriptionObj = mSubsObj; |
| |
| if (!mContext.mSSObserver->mDataItemToClients.empty()) { |
| list<DataItemId> dis( |
| containerTransfer<unordered_set<DataItemId>, list<DataItemId>>( |
| mContext.mSSObserver->mDataItemToClients.getKeys())); |
| mContext.mSubscriptionObj->subscribe(dis, mContext.mSSObserver); |
| mContext.mSubscriptionObj->requestData(dis, mContext.mSSObserver); |
| } |
| } |
| }; |
| |
| if (nullptr == subscriptionObj) { |
| LOC_LOGw("subscriptionObj is NULL"); |
| } else { |
| mContext.mMsgTask->sendMsg(new SetSubsObj(mContext, subscriptionObj)); |
| } |
| } |
| |
| /****************************************************************************** |
| IDataItemSubscription Overrides |
| ******************************************************************************/ |
| void SystemStatusOsObserver::subscribe(const list<DataItemId>& l, IDataItemObserver* client, |
| bool toRequestData) |
| { |
| struct HandleSubscribeReq : public LocMsg { |
| inline HandleSubscribeReq(SystemStatusOsObserver* parent, |
| list<DataItemId>& l, IDataItemObserver* client, bool requestData) : |
| mParent(parent), mClient(client), |
| mDataItemSet(containerTransfer<list<DataItemId>, unordered_set<DataItemId>>(l)), |
| mToRequestData(requestData) {} |
| |
| void proc() const { |
| unordered_set<DataItemId> dataItemsToSubscribe(0); |
| mParent->mDataItemToClients.add(mDataItemSet, {mClient}, &dataItemsToSubscribe); |
| mParent->mClientToDataItems.add(mClient, mDataItemSet); |
| |
| mParent->sendCachedDataItems(mDataItemSet, mClient); |
| |
| // Send subscription set to framework |
| if (nullptr != mParent->mContext.mSubscriptionObj && !dataItemsToSubscribe.empty()) { |
| LOC_LOGD("Subscribe Request sent to framework for the following"); |
| mParent->logMe(dataItemsToSubscribe); |
| |
| if (mToRequestData) { |
| mParent->mContext.mSubscriptionObj->requestData( |
| containerTransfer<unordered_set<DataItemId>, list<DataItemId>>( |
| std::move(dataItemsToSubscribe)), |
| mParent); |
| } else { |
| mParent->mContext.mSubscriptionObj->subscribe( |
| containerTransfer<unordered_set<DataItemId>, list<DataItemId>>( |
| std::move(dataItemsToSubscribe)), |
| mParent); |
| } |
| } |
| } |
| mutable SystemStatusOsObserver* mParent; |
| IDataItemObserver* mClient; |
| const unordered_set<DataItemId> mDataItemSet; |
| bool mToRequestData; |
| }; |
| |
| if (l.empty() || nullptr == client) { |
| LOC_LOGw("Data item set is empty or client is nullptr"); |
| } else { |
| mContext.mMsgTask->sendMsg( |
| new HandleSubscribeReq(this, (list<DataItemId>&)l, client, toRequestData)); |
| } |
| } |
| |
| void SystemStatusOsObserver::updateSubscription( |
| const list<DataItemId>& l, IDataItemObserver* client) |
| { |
| struct HandleUpdateSubscriptionReq : public LocMsg { |
| HandleUpdateSubscriptionReq(SystemStatusOsObserver* parent, |
| list<DataItemId>& l, IDataItemObserver* client) : |
| mParent(parent), mClient(client), |
| mDataItemSet(containerTransfer<list<DataItemId>, unordered_set<DataItemId>>(l)) {} |
| |
| void proc() const { |
| unordered_set<DataItemId> dataItemsToSubscribe(0); |
| unordered_set<DataItemId> dataItemsToUnsubscribe(0); |
| unordered_set<IDataItemObserver*> clients({mClient}); |
| // below removes clients from all entries keyed with the return of the |
| // mClientToDataItems.update() call. If leaving an empty set of clients as the |
| // result, the entire entry will be removed. dataItemsToUnsubscribe will be |
| // populated to keep the keys of the removed entries. |
| mParent->mDataItemToClients.trimOrRemove( |
| // this call updates <IDataItemObserver*, DataItemId> map; removes |
| // the DataItemId's that are not new to the clietn from mDataItemSet; |
| // and returns a set of mDataItemSet's that are no longer used by client. |
| // This unused set of mDataItemSet's is passed to trimOrRemove method of |
| // <DataItemId, IDataItemObserver*> map to remove the client from the |
| // corresponding entries, and gets a set of the entries that are |
| // removed from the <DataItemId, IDataItemObserver*> map as a result. |
| mParent->mClientToDataItems.update(mClient, |
| (unordered_set<DataItemId>&)mDataItemSet), |
| clients, &dataItemsToUnsubscribe, nullptr); |
| // below adds mClient to <DataItemId, IDataItemObserver*> map, and populates |
| // new keys added to that map, which are DataItemIds to be subscribed. |
| mParent->mDataItemToClients.add(mDataItemSet, clients, &dataItemsToSubscribe); |
| |
| // Send First Response |
| mParent->sendCachedDataItems(mDataItemSet, mClient); |
| |
| if (nullptr != mParent->mContext.mSubscriptionObj) { |
| // Send subscription set to framework |
| if (!dataItemsToSubscribe.empty()) { |
| LOC_LOGD("Subscribe Request sent to framework for the following"); |
| mParent->logMe(dataItemsToSubscribe); |
| |
| mParent->mContext.mSubscriptionObj->subscribe( |
| containerTransfer<unordered_set<DataItemId>, list<DataItemId>>( |
| std::move(dataItemsToSubscribe)), |
| mParent); |
| } |
| |
| // Send unsubscribe to framework |
| if (!dataItemsToUnsubscribe.empty()) { |
| LOC_LOGD("Unsubscribe Request sent to framework for the following"); |
| mParent->logMe(dataItemsToUnsubscribe); |
| |
| mParent->mContext.mSubscriptionObj->unsubscribe( |
| containerTransfer<unordered_set<DataItemId>, list<DataItemId>>( |
| std::move(dataItemsToUnsubscribe)), |
| mParent); |
| } |
| } |
| } |
| SystemStatusOsObserver* mParent; |
| IDataItemObserver* mClient; |
| unordered_set<DataItemId> mDataItemSet; |
| }; |
| |
| if (l.empty() || nullptr == client) { |
| LOC_LOGw("Data item set is empty or client is nullptr"); |
| } else { |
| mContext.mMsgTask->sendMsg( |
| new HandleUpdateSubscriptionReq(this, (list<DataItemId>&)l, client)); |
| } |
| } |
| |
| void SystemStatusOsObserver::unsubscribe( |
| const list<DataItemId>& l, IDataItemObserver* client) |
| { |
| struct HandleUnsubscribeReq : public LocMsg { |
| HandleUnsubscribeReq(SystemStatusOsObserver* parent, |
| list<DataItemId>& l, IDataItemObserver* client) : |
| mParent(parent), mClient(client), |
| mDataItemSet(containerTransfer<list<DataItemId>, unordered_set<DataItemId>>(l)) {} |
| |
| void proc() const { |
| unordered_set<DataItemId> dataItemsUnusedByClient(0); |
| unordered_set<IDataItemObserver*> clientToRemove(0); |
| mParent->mClientToDataItems.trimOrRemove({mClient}, mDataItemSet, &clientToRemove, |
| &dataItemsUnusedByClient); |
| unordered_set<DataItemId> dataItemsToUnsubscribe(0); |
| mParent->mDataItemToClients.trimOrRemove(dataItemsUnusedByClient, {mClient}, |
| &dataItemsToUnsubscribe, nullptr); |
| |
| if (nullptr != mParent->mContext.mSubscriptionObj && !dataItemsToUnsubscribe.empty()) { |
| LOC_LOGD("Unsubscribe Request sent to framework for the following data items"); |
| mParent->logMe(dataItemsToUnsubscribe); |
| |
| // Send unsubscribe to framework |
| mParent->mContext.mSubscriptionObj->unsubscribe( |
| containerTransfer<unordered_set<DataItemId>, list<DataItemId>>( |
| std::move(dataItemsToUnsubscribe)), |
| mParent); |
| } |
| } |
| SystemStatusOsObserver* mParent; |
| IDataItemObserver* mClient; |
| unordered_set<DataItemId> mDataItemSet; |
| }; |
| |
| if (l.empty() || nullptr == client) { |
| LOC_LOGw("Data item set is empty or client is nullptr"); |
| } else { |
| mContext.mMsgTask->sendMsg(new HandleUnsubscribeReq(this, (list<DataItemId>&)l, client)); |
| } |
| } |
| |
| void SystemStatusOsObserver::unsubscribeAll(IDataItemObserver* client) |
| { |
| struct HandleUnsubscribeAllReq : public LocMsg { |
| HandleUnsubscribeAllReq(SystemStatusOsObserver* parent, |
| IDataItemObserver* client) : |
| mParent(parent), mClient(client) {} |
| |
| void proc() const { |
| unordered_set<DataItemId> diByClient = mParent->mClientToDataItems.getValSet(mClient); |
| if (!diByClient.empty()) { |
| unordered_set<DataItemId> dataItemsToUnsubscribe; |
| mParent->mClientToDataItems.remove(mClient); |
| mParent->mDataItemToClients.trimOrRemove(diByClient, {mClient}, |
| &dataItemsToUnsubscribe, nullptr); |
| |
| if (!dataItemsToUnsubscribe.empty() && |
| nullptr != mParent->mContext.mSubscriptionObj) { |
| |
| LOC_LOGD("Unsubscribe Request sent to framework for the following data items"); |
| mParent->logMe(dataItemsToUnsubscribe); |
| |
| // Send unsubscribe to framework |
| mParent->mContext.mSubscriptionObj->unsubscribe( |
| containerTransfer<unordered_set<DataItemId>, list<DataItemId>>( |
| std::move(dataItemsToUnsubscribe)), |
| mParent); |
| } |
| } |
| } |
| SystemStatusOsObserver* mParent; |
| IDataItemObserver* mClient; |
| }; |
| |
| if (nullptr == client) { |
| LOC_LOGw("Data item set is empty or client is nullptr"); |
| } else { |
| mContext.mMsgTask->sendMsg(new HandleUnsubscribeAllReq(this, client)); |
| } |
| } |
| |
| /****************************************************************************** |
| IDataItemObserver Overrides |
| ******************************************************************************/ |
| void SystemStatusOsObserver::notify(const list<IDataItemCore*>& dlist) |
| { |
| struct HandleNotify : public LocMsg { |
| HandleNotify(SystemStatusOsObserver* parent, vector<IDataItemCore*>& v) : |
| mParent(parent), mDiVec(std::move(v)) {} |
| |
| inline virtual ~HandleNotify() { |
| for (auto item : mDiVec) { |
| delete item; |
| } |
| } |
| |
| void proc() const { |
| // Update Cache with received data items and prepare |
| // list of data items to be sent. |
| unordered_set<DataItemId> dataItemIdsToBeSent(0); |
| for (auto item : mDiVec) { |
| if (mParent->updateCache(item)) { |
| dataItemIdsToBeSent.insert(item->getId()); |
| } |
| } |
| |
| // Send data item to all subscribed clients |
| unordered_set<IDataItemObserver*> clientSet(0); |
| for (auto each : dataItemIdsToBeSent) { |
| auto clients = mParent->mDataItemToClients.getValSetPtr(each); |
| if (nullptr != clients) { |
| clientSet.insert(clients->begin(), clients->end()); |
| } |
| } |
| |
| for (auto client : clientSet) { |
| unordered_set<DataItemId> dataItemIdsForThisClient( |
| mParent->mClientToDataItems.getValSet(client)); |
| for (auto itr = dataItemIdsForThisClient.begin(); |
| itr != dataItemIdsForThisClient.end(); ) { |
| if (dataItemIdsToBeSent.find(*itr) == dataItemIdsToBeSent.end()) { |
| itr = dataItemIdsForThisClient.erase(itr); |
| } else { |
| itr++; |
| } |
| } |
| |
| mParent->sendCachedDataItems(dataItemIdsForThisClient, client); |
| } |
| } |
| SystemStatusOsObserver* mParent; |
| const vector<IDataItemCore*> mDiVec; |
| }; |
| |
| if (!dlist.empty()) { |
| vector<IDataItemCore*> dataItemVec(dlist.size()); |
| |
| for (auto each : dlist) { |
| IF_LOC_LOGD { |
| string dv; |
| each->stringify(dv); |
| LOC_LOGD("notify: DataItem In Value:%s", dv.c_str()); |
| } |
| |
| IDataItemCore* di = DataItemsFactoryProxy::createNewDataItem(each->getId()); |
| if (nullptr == di) { |
| LOC_LOGw("Unable to create dataitem:%d", each->getId()); |
| continue; |
| } |
| |
| // Copy contents into the newly created data item |
| di->copy(each); |
| |
| // add this dataitem if updated from last one |
| dataItemVec.push_back(di); |
| } |
| |
| if (!dataItemVec.empty()) { |
| mContext.mMsgTask->sendMsg(new HandleNotify(this, dataItemVec)); |
| } |
| } |
| } |
| |
| /****************************************************************************** |
| IFrameworkActionReq Overrides |
| ******************************************************************************/ |
| void SystemStatusOsObserver::turnOn(DataItemId dit, int timeOut) |
| { |
| if (nullptr == mContext.mFrameworkActionReqObj) { |
| LOC_LOGE("%s:%d]: Framework action request object is NULL", __func__, __LINE__); |
| return; |
| } |
| |
| // Check if data item exists in mActiveRequestCount |
| DataItemIdToInt::iterator citer = mActiveRequestCount.find(dit); |
| if (citer == mActiveRequestCount.end()) { |
| // Data item not found in map |
| // Add reference count as 1 and add dataitem to map |
| pair<DataItemId, int> cpair(dit, 1); |
| mActiveRequestCount.insert(cpair); |
| LOC_LOGD("Sending turnOn request"); |
| |
| // Send action turn on to framework |
| struct HandleTurnOnMsg : public LocMsg { |
| HandleTurnOnMsg(IFrameworkActionReq* framework, |
| DataItemId dit, int timeOut) : |
| mFrameworkActionReqObj(framework), mDataItemId(dit), mTimeOut(timeOut) {} |
| virtual ~HandleTurnOnMsg() {} |
| void proc() const { |
| mFrameworkActionReqObj->turnOn(mDataItemId, mTimeOut); |
| } |
| IFrameworkActionReq* mFrameworkActionReqObj; |
| DataItemId mDataItemId; |
| int mTimeOut; |
| }; |
| mContext.mMsgTask->sendMsg(new (nothrow) HandleTurnOnMsg(this, dit, timeOut)); |
| } |
| else { |
| // Found in map, update reference count |
| citer->second++; |
| LOC_LOGD("turnOn - Data item:%d Num_refs:%d", dit, citer->second); |
| } |
| } |
| |
| void SystemStatusOsObserver::turnOff(DataItemId dit) |
| { |
| if (nullptr == mContext.mFrameworkActionReqObj) { |
| LOC_LOGE("%s:%d]: Framework action request object is NULL", __func__, __LINE__); |
| return; |
| } |
| |
| // Check if data item exists in mActiveRequestCount |
| DataItemIdToInt::iterator citer = mActiveRequestCount.find(dit); |
| if (citer != mActiveRequestCount.end()) { |
| // found |
| citer->second--; |
| LOC_LOGD("turnOff - Data item:%d Remaining:%d", dit, citer->second); |
| if(citer->second == 0) { |
| // if this was last reference, remove item from map and turn off module |
| mActiveRequestCount.erase(citer); |
| |
| // Send action turn off to framework |
| struct HandleTurnOffMsg : public LocMsg { |
| HandleTurnOffMsg(IFrameworkActionReq* framework, DataItemId dit) : |
| mFrameworkActionReqObj(framework), mDataItemId(dit) {} |
| virtual ~HandleTurnOffMsg() {} |
| void proc() const { |
| mFrameworkActionReqObj->turnOff(mDataItemId); |
| } |
| IFrameworkActionReq* mFrameworkActionReqObj; |
| DataItemId mDataItemId; |
| }; |
| mContext.mMsgTask->sendMsg( |
| new (nothrow) HandleTurnOffMsg(mContext.mFrameworkActionReqObj, dit)); |
| } |
| } |
| } |
| |
| #ifdef USE_GLIB |
| bool SystemStatusOsObserver::connectBackhaul() |
| { |
| bool result = false; |
| |
| if (mContext.mFrameworkActionReqObj != NULL) { |
| struct HandleConnectBackhaul : public LocMsg { |
| HandleConnectBackhaul(IFrameworkActionReq* fwkActReq) : |
| mFwkActionReqObj(fwkActReq) {} |
| virtual ~HandleConnectBackhaul() {} |
| void proc() const { |
| LOC_LOGD("HandleConnectBackhaul"); |
| mFwkActionReqObj->connectBackhaul(); |
| } |
| IFrameworkActionReq* mFwkActionReqObj; |
| }; |
| mContext.mMsgTask->sendMsg( |
| new (nothrow) HandleConnectBackhaul(mContext.mFrameworkActionReqObj)); |
| result = true; |
| } |
| else { |
| ++mBackHaulConnectReqCount; |
| LOC_LOGE("Framework action request object is NULL.Caching connect request: %d", |
| mBackHaulConnectReqCount); |
| result = false; |
| } |
| return result; |
| |
| } |
| |
| bool SystemStatusOsObserver::disconnectBackhaul() |
| { |
| bool result = false; |
| |
| if (mContext.mFrameworkActionReqObj != NULL) { |
| struct HandleDisconnectBackhaul : public LocMsg { |
| HandleDisconnectBackhaul(IFrameworkActionReq* fwkActReq) : |
| mFwkActionReqObj(fwkActReq) {} |
| virtual ~HandleDisconnectBackhaul() {} |
| void proc() const { |
| LOC_LOGD("HandleDisconnectBackhaul"); |
| mFwkActionReqObj->disconnectBackhaul(); |
| } |
| IFrameworkActionReq* mFwkActionReqObj; |
| }; |
| mContext.mMsgTask->sendMsg( |
| new (nothrow) HandleDisconnectBackhaul(mContext.mFrameworkActionReqObj)); |
| } |
| else { |
| if (mBackHaulConnectReqCount > 0) { |
| --mBackHaulConnectReqCount; |
| } |
| LOC_LOGE("Framework action request object is NULL.Caching disconnect request: %d", |
| mBackHaulConnectReqCount); |
| result = false; |
| } |
| return result; |
| } |
| #endif |
| /****************************************************************************** |
| Helpers |
| ******************************************************************************/ |
| void SystemStatusOsObserver::sendCachedDataItems( |
| const unordered_set<DataItemId>& s, IDataItemObserver* to) |
| { |
| if (nullptr == to) { |
| LOC_LOGv("client pointer is NULL."); |
| } else { |
| string clientName; |
| to->getName(clientName); |
| list<IDataItemCore*> dataItems(0); |
| |
| for (auto each : s) { |
| auto citer = mDataItemCache.find(each); |
| if (citer != mDataItemCache.end()) { |
| string dv; |
| citer->second->stringify(dv); |
| LOC_LOGI("DataItem: %s >> %s", dv.c_str(), clientName.c_str()); |
| dataItems.push_front(citer->second); |
| } |
| } |
| |
| if (dataItems.empty()) { |
| LOC_LOGv("No items to notify."); |
| } else { |
| to->notify(dataItems); |
| } |
| } |
| } |
| |
| bool SystemStatusOsObserver::updateCache(IDataItemCore* d) |
| { |
| bool dataItemUpdated = false; |
| |
| // Request systemstatus to record this dataitem in its cache |
| // if the return is false, it means that SystemStatus is not |
| // handling it, so SystemStatusOsObserver also doesn't. |
| // So it has to be true to proceed. |
| if (nullptr != d && mSystemStatus->eventDataItemNotify(d)) { |
| auto citer = mDataItemCache.find(d->getId()); |
| if (citer == mDataItemCache.end()) { |
| // New data item; not found in cache |
| IDataItemCore* dataitem = DataItemsFactoryProxy::createNewDataItem(d->getId()); |
| if (nullptr != dataitem) { |
| // Copy the contents of the data item |
| dataitem->copy(d); |
| // Insert in mDataItemCache |
| mDataItemCache.insert(std::make_pair(d->getId(), dataitem)); |
| dataItemUpdated = true; |
| } |
| } else { |
| // Found in cache; Update cache if necessary |
| citer->second->copy(d, &dataItemUpdated); |
| } |
| |
| if (dataItemUpdated) { |
| LOC_LOGV("DataItem:%d updated:%d", d->getId(), dataItemUpdated); |
| } |
| } |
| |
| return dataItemUpdated; |
| } |
| |
| } // namespace loc_core |
| |
