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-rw-r--r--src/trace_processor/rpc/rpc.h78
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diff --git a/src/trace_processor/rpc/rpc.h b/src/trace_processor/rpc/rpc.h
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-/*
- * Copyright (C) 2019 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_RPC_RPC_H_
-#define SRC_TRACE_PROCESSOR_RPC_RPC_H_
-
-#include <memory>
-#include <vector>
-
-#include <stddef.h>
-#include <stdint.h>
-
-#include "perfetto/trace_processor/status.h"
-
-namespace perfetto {
-namespace trace_processor {
-
-class TraceProcessor;
-
-// This class handles the binary {,un}marshalling for the Trace Processor RPC
-// API (see protos/perfetto/trace_processor/trace_processor.proto).
-// This is to deal with cases where the client of the trace processor is not
-// some in-process C++ code but a remote process:
-// There are two use cases of this:
-// 1. The JS<>WASM interop for the web-based UI.
-// 2. The HTTP RPC mode of trace_processor_shell that allows the UI to talk
-// to a native trace processor instead of the bundled WASM one.
-// This class has (a subset of) the same methods of the public TraceProcessor
-// interface, but the methods just take and return proto-encoded binary buffers.
-// This class does NOT define how the transport works (e.g. HTTP vs WASM interop
-// calls), it just deals with {,un}marshalling.
-// This class internally creates and owns a TraceProcessor instance, which
-// lifetime is tied to the lifetime of the Rpc instance.
-class Rpc {
- public:
- // The unique_ptr argument is optional. If non-null it will adopt the passed
- // instance and allow to directly query that. If null, a new instanace will be
- // created internally by calling Parse().
- explicit Rpc(std::unique_ptr<TraceProcessor>);
- Rpc();
- ~Rpc();
-
- // The methods of this class are mirrors (modulo {un,}marshalling of args) of
- // the corresponding names in trace_processor.h . See that header for docs.
-
- util::Status Parse(const uint8_t* data, size_t len);
- void NotifyEndOfFile();
- std::vector<uint8_t> RawQuery(const uint8_t* args, size_t len);
- void RestoreInitialTables();
- std::string GetCurrentTraceName();
-
- private:
- void MaybePrintProgress();
-
- std::unique_ptr<TraceProcessor> trace_processor_;
- bool eof_ = true; // Reset when calling Parse().
- int64_t t_parse_started_ = 0;
- size_t bytes_last_progress_ = 0;
- size_t bytes_parsed_ = 0;
-};
-
-} // namespace trace_processor
-} // namespace perfetto
-
-#endif // SRC_TRACE_PROCESSOR_RPC_RPC_H_