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74 lines
2.0 KiB
74 lines
2.0 KiB
/*
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* Copyright 2013 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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#pragma once
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#include <utils/Errors.h>
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#include <utils/Singleton.h>
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#include <cstdint>
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#include <string_view>
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namespace android {
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class EventLog : public Singleton<EventLog> {
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public:
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static void logFrameDurations(const std::string_view& name, const int32_t* durations,
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size_t numDurations);
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protected:
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EventLog();
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private:
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/*
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* EventLogBuffer is a helper class to construct an in-memory event log
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* tag. In this version the buffer is not dynamic, so write operation can
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* fail if there is not enough space in the temporary buffer.
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* Once constructed, the buffer can be logger by calling the log()
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* method.
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*/
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class TagBuffer {
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enum { STORAGE_MAX_SIZE = 128 };
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int32_t mPos;
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int32_t mTag;
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bool mOverflow;
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char mStorage[STORAGE_MAX_SIZE];
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public:
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explicit TagBuffer(int32_t tag);
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void startList(int8_t count);
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void endList();
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void writeInt32(int32_t);
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void writeInt64(int64_t);
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void writeString(const std::string_view&);
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void log();
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};
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friend class Singleton<EventLog>;
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EventLog(const EventLog&);
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EventLog& operator =(const EventLog&);
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enum { LOGTAG_SF_FRAME_DUR = 60100 };
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void doLogFrameDurations(const std::string_view& name, const int32_t* durations,
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size_t numDurations);
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};
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} // namespace android
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