1 files changed, 63 insertions, 0 deletions
diff --git a/src/trace_processor/json_trace_parser.h b/src/trace_processor/json_trace_parser.h
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+++ b/src/trace_processor/json_trace_parser.h
@@ -0,0 +1,63 @@
+/*
+ * Copyright (C) 2018 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.
+ */
+
+#ifndef SRC_TRACE_PROCESSOR_JSON_TRACE_PARSER_H_
+#define SRC_TRACE_PROCESSOR_JSON_TRACE_PARSER_H_
+
+#include <stdint.h>
+
+#include <memory>
+#include <tuple>
+#include <unordered_map>
+
+#include "src/trace_processor/trace_parser.h"
+#include "src/trace_processor/trace_sorter.h"
+#include "src/trace_processor/trace_storage.h"
+
+namespace Json {
+class Value;
+}
+
+namespace perfetto {
+namespace trace_processor {
+
+class TraceProcessorContext;
+
+base::Optional<int64_t> CoerceToInt64(const Json::Value& value);
+base::Optional<uint32_t> CoerceToUint32(const Json::Value& value);
+
+// Parses legacy chrome JSON traces. The support for now is extremely rough
+// and supports only explicit TRACE_EVENT_BEGIN/END events.
+class JsonTraceParser : public TraceParser {
+ public:
+  explicit JsonTraceParser(TraceProcessorContext*);
+  ~JsonTraceParser() override;
+
+  // TraceParser implementation.
+  void ParseTracePacket(int64_t timestamp,
+                        TraceSorter::TimestampedTracePiece) override;
+  void ParseFtracePacket(uint32_t,
+                         int64_t,
+                         TraceSorter::TimestampedTracePiece) override;
+
+ private:
+  TraceProcessorContext* const context_;
+};
+
+}  // namespace trace_processor
+}  // namespace perfetto
+
+#endif  // SRC_TRACE_PROCESSOR_JSON_TRACE_PARSER_H_