xref: /aosp_15_r20/external/perfetto/src/trace_processor/importers/common/trace_file_tracker.h (revision 6dbdd20afdafa5e3ca9b8809fa73465d530080dc)
1 /*
2  * Copyright (C) 2024 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_COMMON_TRACE_FILE_TRACKER_H_
18 #define SRC_TRACE_PROCESSOR_IMPORTERS_COMMON_TRACE_FILE_TRACKER_H_
19 
20 #include <string>
21 #include <vector>
22 
23 #include "src/trace_processor/storage/trace_storage.h"
24 #include "src/trace_processor/tables/metadata_tables_py.h"
25 #include "src/trace_processor/util/trace_type.h"
26 
27 namespace perfetto::trace_processor {
28 
29 class TraceProcessorContext;
30 
31 // This class keeps track of the file currently being parsed and metadata about
32 // it. Files can be nested into other files (zip or gzip files) and this class
33 // also keeps track of those relations.
34 class TraceFileTracker {
35  public:
TraceFileTracker(TraceProcessorContext * context)36   explicit TraceFileTracker(TraceProcessorContext* context)
37       : context_(context) {}
38 
39   tables::TraceFileTable::Id AddFile(const std::string& name);
AddFile()40   tables::TraceFileTable::Id AddFile() { return AddFileImpl(kNullStringId); }
41   void SetSize(tables::TraceFileTable::Id id, uint64_t size);
42   void StartParsing(tables::TraceFileTable::Id id, TraceType trace_type);
43   void DoneParsing(tables::TraceFileTable::Id id, size_t size);
44 
45  private:
46   tables::TraceFileTable::Id AddFileImpl(StringId name);
47 
48   TraceProcessorContext* const context_;
49   size_t processing_order_ = 0;
50   std::vector<tables::TraceFileTable::Id> parsing_stack_;
51 };
52 
53 }  // namespace perfetto::trace_processor
54 
55 #endif  // SRC_TRACE_PROCESSOR_IMPORTERS_COMMON_TRACE_FILE_TRACKER_H_
56