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65 lines
2.1 KiB
65 lines
2.1 KiB
/*
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* Copyright (C) 2019 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef AAPT_TRACEBUFFER_H
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#define AAPT_TRACEBUFFER_H
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#include <string>
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#include <vector>
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#include <androidfw/StringPiece.h>
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namespace aapt {
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// Record timestamps for beginning and end of a task and generate systrace json fragments.
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// This is an in-process ftrace which has the advantage of being platform independent.
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// These methods are NOT thread-safe since aapt2 is not multi-threaded.
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// Convenience RIAA object to automatically finish an event when object goes out of scope.
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class Trace {
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public:
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Trace(const std::string& tag);
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Trace(const std::string& tag, const std::vector<android::StringPiece>& args);
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~Trace();
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};
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// Manual markers.
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void BeginTrace(const std::string& tag);
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void EndTrace();
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// A main trace is required to flush events to disk. Events are formatted in systrace
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// json format.
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class FlushTrace {
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public:
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explicit FlushTrace(const std::string& basepath, const std::string& tag);
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explicit FlushTrace(const std::string& basepath, const std::string& tag,
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const std::vector<android::StringPiece>& args);
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explicit FlushTrace(const std::string& basepath, const std::string& tag,
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const std::vector<std::string>& args);
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~FlushTrace();
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private:
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std::string basepath_;
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};
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#define TRACE_CALL() Trace __t(__func__)
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#define TRACE_NAME(tag) Trace __t(tag)
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#define TRACE_NAME_ARGS(tag, args) Trace __t(tag, args)
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#define TRACE_FLUSH(basename, tag) FlushTrace __t(basename, tag)
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#define TRACE_FLUSH_ARGS(basename, tag, args) FlushTrace __t(basename, tag, args)
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} // namespace aapt
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#endif //AAPT_TRACEBUFFER_H
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