575 lines
23 KiB
C++
Executable file
575 lines
23 KiB
C++
Executable file
/* Copyright (c) 2015-2017, The Linux Foundation. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials provided
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* with the distribution.
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* * Neither the name of The Linux Foundation, nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
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* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
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* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
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* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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#define LOG_TAG "LocSvc_SystemStatusOsObserver"
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#include <algorithm>
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#include <SystemStatus.h>
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#include <SystemStatusOsObserver.h>
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#include <IDataItemCore.h>
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#include <DataItemsFactoryProxy.h>
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namespace loc_core
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{
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template <typename CINT, typename COUT>
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COUT SystemStatusOsObserver::containerTransfer(CINT& inContainer) {
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COUT outContainer(0);
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for (auto item : inContainer) {
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outContainer.insert(outContainer.begin(), item);
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}
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return outContainer;
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}
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SystemStatusOsObserver::~SystemStatusOsObserver() {
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// Close data-item library handle
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DataItemsFactoryProxy::closeDataItemLibraryHandle();
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// Destroy cache
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for (auto each : mDataItemCache) {
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if (nullptr != each.second) {
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delete each.second;
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}
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}
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mDataItemCache.clear();
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}
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void SystemStatusOsObserver::setSubscriptionObj(IDataItemSubscription* subscriptionObj)
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{
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struct SetSubsObj : public LocMsg {
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ObserverContext& mContext;
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IDataItemSubscription* mSubsObj;
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inline SetSubsObj(ObserverContext& context, IDataItemSubscription* subscriptionObj) :
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mContext(context), mSubsObj(subscriptionObj) {}
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void proc() const {
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mContext.mSubscriptionObj = mSubsObj;
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if (!mContext.mSSObserver->mDataItemToClients.empty()) {
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list<DataItemId> dis(
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containerTransfer<unordered_set<DataItemId>, list<DataItemId>>(
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mContext.mSSObserver->mDataItemToClients.getKeys()));
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mContext.mSubscriptionObj->subscribe(dis, mContext.mSSObserver);
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mContext.mSubscriptionObj->requestData(dis, mContext.mSSObserver);
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}
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}
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};
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if (nullptr == subscriptionObj) {
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LOC_LOGw("subscriptionObj is NULL");
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} else {
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mContext.mMsgTask->sendMsg(new SetSubsObj(mContext, subscriptionObj));
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}
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}
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/******************************************************************************
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IDataItemSubscription Overrides
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******************************************************************************/
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void SystemStatusOsObserver::subscribe(const list<DataItemId>& l, IDataItemObserver* client,
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bool toRequestData)
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{
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struct HandleSubscribeReq : public LocMsg {
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inline HandleSubscribeReq(SystemStatusOsObserver* parent,
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list<DataItemId>& l, IDataItemObserver* client, bool requestData) :
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mParent(parent), mClient(client),
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mDataItemSet(containerTransfer<list<DataItemId>, unordered_set<DataItemId>>(l)),
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mToRequestData(requestData) {}
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void proc() const {
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unordered_set<DataItemId> dataItemsToSubscribe(0);
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mParent->mDataItemToClients.add(mDataItemSet, {mClient}, &dataItemsToSubscribe);
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mParent->mClientToDataItems.add(mClient, mDataItemSet);
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mParent->sendCachedDataItems(mDataItemSet, mClient);
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// Send subscription set to framework
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if (nullptr != mParent->mContext.mSubscriptionObj && !dataItemsToSubscribe.empty()) {
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LOC_LOGD("Subscribe Request sent to framework for the following");
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mParent->logMe(dataItemsToSubscribe);
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if (mToRequestData) {
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mParent->mContext.mSubscriptionObj->requestData(
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containerTransfer<unordered_set<DataItemId>, list<DataItemId>>(
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std::move(dataItemsToSubscribe)),
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mParent);
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} else {
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mParent->mContext.mSubscriptionObj->subscribe(
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containerTransfer<unordered_set<DataItemId>, list<DataItemId>>(
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std::move(dataItemsToSubscribe)),
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mParent);
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}
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}
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}
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mutable SystemStatusOsObserver* mParent;
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IDataItemObserver* mClient;
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const unordered_set<DataItemId> mDataItemSet;
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bool mToRequestData;
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};
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if (l.empty() || nullptr == client) {
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LOC_LOGw("Data item set is empty or client is nullptr");
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} else {
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mContext.mMsgTask->sendMsg(
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new HandleSubscribeReq(this, (list<DataItemId>&)l, client, toRequestData));
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}
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}
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void SystemStatusOsObserver::updateSubscription(
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const list<DataItemId>& l, IDataItemObserver* client)
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{
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struct HandleUpdateSubscriptionReq : public LocMsg {
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HandleUpdateSubscriptionReq(SystemStatusOsObserver* parent,
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list<DataItemId>& l, IDataItemObserver* client) :
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mParent(parent), mClient(client),
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mDataItemSet(containerTransfer<list<DataItemId>, unordered_set<DataItemId>>(l)) {}
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void proc() const {
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unordered_set<DataItemId> dataItemsToSubscribe(0);
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unordered_set<DataItemId> dataItemsToUnsubscribe(0);
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unordered_set<IDataItemObserver*> clients({mClient});
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// below removes clients from all entries keyed with the return of the
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// mClientToDataItems.update() call. If leaving an empty set of clients as the
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// result, the entire entry will be removed. dataItemsToUnsubscribe will be
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// populated to keep the keys of the removed entries.
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mParent->mDataItemToClients.trimOrRemove(
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// this call updates <IDataItemObserver*, DataItemId> map; removes
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// the DataItemId's that are not new to the clietn from mDataItemSet;
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// and returns a set of mDataItemSet's that are no longer used by client.
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// This unused set of mDataItemSet's is passed to trimOrRemove method of
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// <DataItemId, IDataItemObserver*> map to remove the client from the
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// corresponding entries, and gets a set of the entries that are
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// removed from the <DataItemId, IDataItemObserver*> map as a result.
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mParent->mClientToDataItems.update(mClient,
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(unordered_set<DataItemId>&)mDataItemSet),
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clients, &dataItemsToUnsubscribe, nullptr);
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// below adds mClient to <DataItemId, IDataItemObserver*> map, and populates
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// new keys added to that map, which are DataItemIds to be subscribed.
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mParent->mDataItemToClients.add(mDataItemSet, clients, &dataItemsToSubscribe);
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// Send First Response
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mParent->sendCachedDataItems(mDataItemSet, mClient);
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if (nullptr != mParent->mContext.mSubscriptionObj) {
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// Send subscription set to framework
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if (!dataItemsToSubscribe.empty()) {
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LOC_LOGD("Subscribe Request sent to framework for the following");
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mParent->logMe(dataItemsToSubscribe);
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mParent->mContext.mSubscriptionObj->subscribe(
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containerTransfer<unordered_set<DataItemId>, list<DataItemId>>(
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std::move(dataItemsToSubscribe)),
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mParent);
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}
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// Send unsubscribe to framework
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if (!dataItemsToUnsubscribe.empty()) {
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LOC_LOGD("Unsubscribe Request sent to framework for the following");
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mParent->logMe(dataItemsToUnsubscribe);
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mParent->mContext.mSubscriptionObj->unsubscribe(
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containerTransfer<unordered_set<DataItemId>, list<DataItemId>>(
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std::move(dataItemsToUnsubscribe)),
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mParent);
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}
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}
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}
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SystemStatusOsObserver* mParent;
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IDataItemObserver* mClient;
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unordered_set<DataItemId> mDataItemSet;
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};
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if (l.empty() || nullptr == client) {
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LOC_LOGw("Data item set is empty or client is nullptr");
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} else {
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mContext.mMsgTask->sendMsg(
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new HandleUpdateSubscriptionReq(this, (list<DataItemId>&)l, client));
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}
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}
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void SystemStatusOsObserver::unsubscribe(
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const list<DataItemId>& l, IDataItemObserver* client)
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{
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struct HandleUnsubscribeReq : public LocMsg {
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HandleUnsubscribeReq(SystemStatusOsObserver* parent,
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list<DataItemId>& l, IDataItemObserver* client) :
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mParent(parent), mClient(client),
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mDataItemSet(containerTransfer<list<DataItemId>, unordered_set<DataItemId>>(l)) {}
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void proc() const {
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unordered_set<DataItemId> dataItemsUnusedByClient(0);
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unordered_set<IDataItemObserver*> clientToRemove(0);
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mParent->mClientToDataItems.trimOrRemove({mClient}, mDataItemSet, &clientToRemove,
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&dataItemsUnusedByClient);
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unordered_set<DataItemId> dataItemsToUnsubscribe(0);
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mParent->mDataItemToClients.trimOrRemove(dataItemsUnusedByClient, {mClient},
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&dataItemsToUnsubscribe, nullptr);
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if (nullptr != mParent->mContext.mSubscriptionObj && !dataItemsToUnsubscribe.empty()) {
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LOC_LOGD("Unsubscribe Request sent to framework for the following data items");
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mParent->logMe(dataItemsToUnsubscribe);
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// Send unsubscribe to framework
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mParent->mContext.mSubscriptionObj->unsubscribe(
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containerTransfer<unordered_set<DataItemId>, list<DataItemId>>(
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std::move(dataItemsToUnsubscribe)),
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mParent);
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}
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}
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SystemStatusOsObserver* mParent;
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IDataItemObserver* mClient;
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unordered_set<DataItemId> mDataItemSet;
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};
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if (l.empty() || nullptr == client) {
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LOC_LOGw("Data item set is empty or client is nullptr");
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} else {
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mContext.mMsgTask->sendMsg(new HandleUnsubscribeReq(this, (list<DataItemId>&)l, client));
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}
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}
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void SystemStatusOsObserver::unsubscribeAll(IDataItemObserver* client)
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{
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struct HandleUnsubscribeAllReq : public LocMsg {
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HandleUnsubscribeAllReq(SystemStatusOsObserver* parent,
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IDataItemObserver* client) :
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mParent(parent), mClient(client) {}
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void proc() const {
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unordered_set<DataItemId> diByClient = mParent->mClientToDataItems.getValSet(mClient);
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if (!diByClient.empty()) {
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unordered_set<DataItemId> dataItemsToUnsubscribe;
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mParent->mClientToDataItems.remove(mClient);
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mParent->mDataItemToClients.trimOrRemove(diByClient, {mClient},
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&dataItemsToUnsubscribe, nullptr);
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if (!dataItemsToUnsubscribe.empty() &&
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nullptr != mParent->mContext.mSubscriptionObj) {
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LOC_LOGD("Unsubscribe Request sent to framework for the following data items");
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mParent->logMe(dataItemsToUnsubscribe);
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// Send unsubscribe to framework
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mParent->mContext.mSubscriptionObj->unsubscribe(
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containerTransfer<unordered_set<DataItemId>, list<DataItemId>>(
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std::move(dataItemsToUnsubscribe)),
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mParent);
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}
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}
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}
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SystemStatusOsObserver* mParent;
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IDataItemObserver* mClient;
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};
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if (nullptr == client) {
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LOC_LOGw("Data item set is empty or client is nullptr");
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} else {
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mContext.mMsgTask->sendMsg(new HandleUnsubscribeAllReq(this, client));
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}
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}
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/******************************************************************************
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IDataItemObserver Overrides
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******************************************************************************/
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void SystemStatusOsObserver::notify(const list<IDataItemCore*>& dlist)
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{
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struct HandleNotify : public LocMsg {
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HandleNotify(SystemStatusOsObserver* parent, vector<IDataItemCore*>& v) :
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mParent(parent), mDiVec(std::move(v)) {}
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inline virtual ~HandleNotify() {
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for (auto item : mDiVec) {
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delete item;
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}
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}
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void proc() const {
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// Update Cache with received data items and prepare
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// list of data items to be sent.
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unordered_set<DataItemId> dataItemIdsToBeSent(0);
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for (auto item : mDiVec) {
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if (mParent->updateCache(item)) {
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dataItemIdsToBeSent.insert(item->getId());
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}
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}
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// Send data item to all subscribed clients
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unordered_set<IDataItemObserver*> clientSet(0);
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for (auto each : dataItemIdsToBeSent) {
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auto clients = mParent->mDataItemToClients.getValSetPtr(each);
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if (nullptr != clients) {
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clientSet.insert(clients->begin(), clients->end());
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}
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}
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for (auto client : clientSet) {
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unordered_set<DataItemId> dataItemIdsForThisClient(
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mParent->mClientToDataItems.getValSet(client));
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for (auto itr = dataItemIdsForThisClient.begin();
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itr != dataItemIdsForThisClient.end(); ) {
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if (dataItemIdsToBeSent.find(*itr) == dataItemIdsToBeSent.end()) {
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itr = dataItemIdsForThisClient.erase(itr);
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} else {
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itr++;
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}
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}
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mParent->sendCachedDataItems(dataItemIdsForThisClient, client);
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}
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}
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SystemStatusOsObserver* mParent;
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const vector<IDataItemCore*> mDiVec;
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};
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if (!dlist.empty()) {
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vector<IDataItemCore*> dataItemVec(dlist.size());
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for (auto each : dlist) {
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IF_LOC_LOGD {
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string dv;
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each->stringify(dv);
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LOC_LOGD("notify: DataItem In Value:%s", dv.c_str());
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}
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IDataItemCore* di = DataItemsFactoryProxy::createNewDataItem(each->getId());
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if (nullptr == di) {
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LOC_LOGw("Unable to create dataitem:%d", each->getId());
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continue;
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}
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// Copy contents into the newly created data item
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di->copy(each);
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// add this dataitem if updated from last one
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dataItemVec.push_back(di);
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}
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if (!dataItemVec.empty()) {
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mContext.mMsgTask->sendMsg(new HandleNotify(this, dataItemVec));
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}
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}
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}
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/******************************************************************************
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IFrameworkActionReq Overrides
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******************************************************************************/
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void SystemStatusOsObserver::turnOn(DataItemId dit, int timeOut)
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{
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if (nullptr == mContext.mFrameworkActionReqObj) {
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LOC_LOGE("%s:%d]: Framework action request object is NULL", __func__, __LINE__);
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return;
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}
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// Check if data item exists in mActiveRequestCount
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DataItemIdToInt::iterator citer = mActiveRequestCount.find(dit);
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if (citer == mActiveRequestCount.end()) {
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// Data item not found in map
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// Add reference count as 1 and add dataitem to map
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pair<DataItemId, int> cpair(dit, 1);
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mActiveRequestCount.insert(cpair);
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LOC_LOGD("Sending turnOn request");
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// Send action turn on to framework
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struct HandleTurnOnMsg : public LocMsg {
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HandleTurnOnMsg(IFrameworkActionReq* framework,
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DataItemId dit, int timeOut) :
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mFrameworkActionReqObj(framework), mDataItemId(dit), mTimeOut(timeOut) {}
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virtual ~HandleTurnOnMsg() {}
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void proc() const {
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mFrameworkActionReqObj->turnOn(mDataItemId, mTimeOut);
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}
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IFrameworkActionReq* mFrameworkActionReqObj;
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DataItemId mDataItemId;
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int mTimeOut;
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};
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mContext.mMsgTask->sendMsg(new (nothrow) HandleTurnOnMsg(this, dit, timeOut));
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}
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else {
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// Found in map, update reference count
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citer->second++;
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LOC_LOGD("turnOn - Data item:%d Num_refs:%d", dit, citer->second);
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}
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}
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void SystemStatusOsObserver::turnOff(DataItemId dit)
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{
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if (nullptr == mContext.mFrameworkActionReqObj) {
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LOC_LOGE("%s:%d]: Framework action request object is NULL", __func__, __LINE__);
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return;
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}
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// Check if data item exists in mActiveRequestCount
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DataItemIdToInt::iterator citer = mActiveRequestCount.find(dit);
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if (citer != mActiveRequestCount.end()) {
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// found
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citer->second--;
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LOC_LOGD("turnOff - Data item:%d Remaining:%d", dit, citer->second);
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if(citer->second == 0) {
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// if this was last reference, remove item from map and turn off module
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mActiveRequestCount.erase(citer);
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// Send action turn off to framework
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struct HandleTurnOffMsg : public LocMsg {
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HandleTurnOffMsg(IFrameworkActionReq* framework, DataItemId dit) :
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mFrameworkActionReqObj(framework), mDataItemId(dit) {}
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virtual ~HandleTurnOffMsg() {}
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void proc() const {
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mFrameworkActionReqObj->turnOff(mDataItemId);
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}
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IFrameworkActionReq* mFrameworkActionReqObj;
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DataItemId mDataItemId;
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};
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mContext.mMsgTask->sendMsg(
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new (nothrow) HandleTurnOffMsg(mContext.mFrameworkActionReqObj, dit));
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}
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}
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}
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#ifdef USE_GLIB
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bool SystemStatusOsObserver::connectBackhaul()
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{
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bool result = false;
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if (mContext.mFrameworkActionReqObj != NULL) {
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struct HandleConnectBackhaul : public LocMsg {
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HandleConnectBackhaul(IFrameworkActionReq* fwkActReq) :
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mFwkActionReqObj(fwkActReq) {}
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virtual ~HandleConnectBackhaul() {}
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void proc() const {
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LOC_LOGD("HandleConnectBackhaul");
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mFwkActionReqObj->connectBackhaul();
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}
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IFrameworkActionReq* mFwkActionReqObj;
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};
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mContext.mMsgTask->sendMsg(
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new (nothrow) HandleConnectBackhaul(mContext.mFrameworkActionReqObj));
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result = true;
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}
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else {
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++mBackHaulConnectReqCount;
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LOC_LOGE("Framework action request object is NULL.Caching connect request: %d",
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mBackHaulConnectReqCount);
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result = false;
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}
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return result;
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}
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bool SystemStatusOsObserver::disconnectBackhaul()
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{
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bool result = false;
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if (mContext.mFrameworkActionReqObj != NULL) {
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struct HandleDisconnectBackhaul : public LocMsg {
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HandleDisconnectBackhaul(IFrameworkActionReq* fwkActReq) :
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mFwkActionReqObj(fwkActReq) {}
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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
|
|
|