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 #include "src/trace_processor/trace_reader_registry.h"
18 #include "perfetto/base/logging.h"
19 #include "src/trace_processor/importers/common/chunked_trace_reader.h"
20 #include "src/trace_processor/types/trace_processor_context.h"
21 #include "src/trace_processor/util/gzip_utils.h"
22 #include "src/trace_processor/util/trace_type.h"
23
24 namespace perfetto::trace_processor {
25 namespace {
26 const char kNoZlibErr[] =
27 "Cannot open compressed trace. zlib not enabled in the build config";
28
RequiresZlibSupport(TraceType type)29 bool RequiresZlibSupport(TraceType type) {
30 switch (type) {
31 case kGzipTraceType:
32 case kCtraceTraceType:
33 case kZipFile:
34 return true;
35
36 case kNinjaLogTraceType:
37 case kSystraceTraceType:
38 case kPerfDataTraceType:
39 case kUnknownTraceType:
40 case kJsonTraceType:
41 case kFuchsiaTraceType:
42 case kProtoTraceType:
43 return false;
44 }
45 PERFETTO_FATAL("For GCC");
46 }
47 } // namespace
48
RegisterFactory(TraceType trace_type,Factory factory)49 void TraceReaderRegistry::RegisterFactory(TraceType trace_type,
50 Factory factory) {
51 PERFETTO_CHECK(factories_.Insert(trace_type, std::move(factory)).second);
52 }
53
54 base::StatusOr<std::unique_ptr<ChunkedTraceReader>>
CreateTraceReader(TraceType type)55 TraceReaderRegistry::CreateTraceReader(TraceType type) {
56 if (auto it = factories_.Find(type); it) {
57 return (*it)(context_);
58 }
59
60 if (RequiresZlibSupport(type) && !util::IsGzipSupported()) {
61 return base::ErrStatus("%s support is disabled. %s", ToString(type),
62 kNoZlibErr);
63 }
64
65 return base::ErrStatus("%s support is disabled", ToString(type));
66 }
67
68 } // namespace perfetto::trace_processor
69