diff options
Diffstat (limited to 'cmds/statsd/src/external/StatsCallbackPuller.cpp')
-rw-r--r-- | cmds/statsd/src/external/StatsCallbackPuller.cpp | 116 |
1 files changed, 0 insertions, 116 deletions
diff --git a/cmds/statsd/src/external/StatsCallbackPuller.cpp b/cmds/statsd/src/external/StatsCallbackPuller.cpp deleted file mode 100644 index 78e6f094db7e..000000000000 --- a/cmds/statsd/src/external/StatsCallbackPuller.cpp +++ /dev/null @@ -1,116 +0,0 @@ -/* - * Copyright (C) 2019 The Android Open Source Project - * - * 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. - */ - -#define DEBUG false // STOPSHIP if true -#include "Log.h" - -#include "StatsCallbackPuller.h" -#include "PullResultReceiver.h" -#include "StatsPullerManager.h" -#include "logd/LogEvent.h" -#include "stats_log_util.h" - -#include <aidl/android/util/StatsEventParcel.h> - -using namespace std; - -using Status = ::ndk::ScopedAStatus; -using aidl::android::util::StatsEventParcel; -using ::ndk::SharedRefBase; - -namespace android { -namespace os { -namespace statsd { - -StatsCallbackPuller::StatsCallbackPuller(int tagId, const shared_ptr<IPullAtomCallback>& callback, - const int64_t coolDownNs, int64_t timeoutNs, - const vector<int> additiveFields) - : StatsPuller(tagId, coolDownNs, timeoutNs, additiveFields), mCallback(callback) { - VLOG("StatsCallbackPuller created for tag %d", tagId); -} - -bool StatsCallbackPuller::PullInternal(vector<shared_ptr<LogEvent>>* data) { - VLOG("StatsCallbackPuller called for tag %d", mTagId); - if(mCallback == nullptr) { - ALOGW("No callback registered"); - return false; - } - - // Shared variables needed in the result receiver. - shared_ptr<mutex> cv_mutex = make_shared<mutex>(); - shared_ptr<condition_variable> cv = make_shared<condition_variable>(); - shared_ptr<bool> pullFinish = make_shared<bool>(false); - shared_ptr<bool> pullSuccess = make_shared<bool>(false); - shared_ptr<vector<shared_ptr<LogEvent>>> sharedData = - make_shared<vector<shared_ptr<LogEvent>>>(); - - shared_ptr<PullResultReceiver> resultReceiver = SharedRefBase::make<PullResultReceiver>( - [cv_mutex, cv, pullFinish, pullSuccess, sharedData]( - int32_t atomTag, bool success, const vector<StatsEventParcel>& output) { - // This is the result of the pull, executing in a statsd binder thread. - // The pull could have taken a long time, and we should only modify - // data (the output param) if the pointer is in scope and the pull did not time out. - { - lock_guard<mutex> lk(*cv_mutex); - for (const StatsEventParcel& parcel: output) { - shared_ptr<LogEvent> event = make_shared<LogEvent>(/*uid=*/-1, /*pid=*/-1); - bool valid = event->parseBuffer((uint8_t*)parcel.buffer.data(), - parcel.buffer.size()); - if (valid) { - sharedData->push_back(event); - } else { - StatsdStats::getInstance().noteAtomError(event->GetTagId(), - /*pull=*/true); - } - } - *pullSuccess = success; - *pullFinish = true; - } - cv->notify_one(); - }); - - // Initiate the pull. This is a oneway call to a different process, except - // in unit tests. In process calls are not oneway. - Status status = mCallback->onPullAtom(mTagId, resultReceiver); - if (!status.isOk()) { - StatsdStats::getInstance().notePullBinderCallFailed(mTagId); - return false; - } - - { - unique_lock<mutex> unique_lk(*cv_mutex); - // Wait until the pull finishes, or until the pull timeout. - cv->wait_for(unique_lk, chrono::nanoseconds(mPullTimeoutNs), - [pullFinish] { return *pullFinish; }); - if (!*pullFinish) { - // Note: The parent stats puller will also note that there was a timeout and that the - // cache should be cleared. Once we migrate all pullers to this callback, we could - // consolidate the logic. - return true; - } else { - // Only copy the data if we did not timeout and the pull was successful. - if (*pullSuccess) { - *data = std::move(*sharedData); - } - VLOG("StatsCallbackPuller::pull succeeded for %d", mTagId); - return *pullSuccess; - } - } -} - -} // namespace statsd -} // namespace os -} // namespace android |