1 /*
2  * Copyright (C) 2017 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 #pragma once
17 
18 #include <utils/RefBase.h>
19 #include "StatsPuller.h"
20 #include "logd/LogEvent.h"
21 
22 namespace android {
23 namespace os {
24 namespace statsd {
25 
26 // Determine if pull was needed and if so, whether the pull was successful
27 enum PullResult { PULL_RESULT_SUCCESS = 1, PULL_RESULT_FAIL = 2, PULL_NOT_NEEDED = 3 };
28 
29 class PullDataReceiver : virtual public RefBase{
30  public:
~PullDataReceiver()31   virtual ~PullDataReceiver() {}
32   /**
33    * @param data The pulled data.
34    * @param pullResult Whether the pull succeeded and was needed. If the pull does not succeed,
35    * the data for the bucket should be invalidated.
36    * @param originalPullTimeNs This is when all the pulls have been initiated (elapsed time).
37    */
38   virtual void onDataPulled(const std::vector<std::shared_ptr<LogEvent>>& data,
39                             PullResult pullResult, int64_t originalPullTimeNs) = 0;
40 
41   virtual bool isPullNeeded() const = 0;
42 };
43 
44 }  // namespace statsd
45 }  // namespace os
46 }  // namespace android
47