1 /*
2  * Copyright (C) 2019 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 
17 #ifndef SRC_TRACE_PROCESSOR_IMPORTERS_FTRACE_RSS_STAT_TRACKER_H_
18 #define SRC_TRACE_PROCESSOR_IMPORTERS_FTRACE_RSS_STAT_TRACKER_H_
19 
20 #include <unordered_map>
21 
22 #include "perfetto/protozero/field.h"
23 #include "src/trace_processor/storage/trace_storage.h"
24 
25 namespace perfetto {
26 namespace trace_processor {
27 
28 class TraceProcessorContext;
29 
30 class RssStatTracker {
31  public:
32   using ConstBytes = protozero::ConstBytes;
33 
34   explicit RssStatTracker(TraceProcessorContext*);
35 
36   void ParseRssStat(int64_t ts, uint32_t pid, ConstBytes blob);
37   void ParseRssStat(int64_t ts,
38                     uint32_t pid,
39                     int64_t size,
40                     uint32_t member,
41                     base::Optional<bool> curr,
42                     base::Optional<int64_t> mm_id);
43 
44  private:
45   base::Optional<UniqueTid> FindUtidForMmId(int64_t mm_id,
46                                             bool is_curr,
47                                             uint32_t pid);
48 
49   std::unordered_map<int64_t, UniqueTid> mm_id_to_utid_;
50   std::vector<StringId> rss_members_;
51   TraceProcessorContext* const context_;
52 };
53 
54 }  // namespace trace_processor
55 }  // namespace perfetto
56 
57 #endif  // SRC_TRACE_PROCESSOR_IMPORTERS_FTRACE_RSS_STAT_TRACKER_H_
58