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104 lines
2.3 KiB
104 lines
2.3 KiB
/*
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* Copyright (C) 2016 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 ART_LIBARTBASE_BASE_SYSTRACE_H_
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#define ART_LIBARTBASE_BASE_SYSTRACE_H_
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#include <sstream>
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#include <string>
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#include "android-base/stringprintf.h"
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#include "macros.h"
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#include "palette/palette.h"
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namespace art {
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inline bool ATraceEnabled() {
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bool enabled = false;
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if (UNLIKELY(PaletteTraceEnabled(&enabled) == PALETTE_STATUS_OK && enabled)) {
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return true;
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} else {
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return false;
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}
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}
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inline void ATraceBegin(const char* name) {
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PaletteTraceBegin(name);
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}
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inline void ATraceEnd() {
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PaletteTraceEnd();
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}
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inline void ATraceIntegerValue(const char* name, int32_t value) {
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PaletteTraceIntegerValue(name, value);
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}
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class ScopedTrace {
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public:
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explicit ScopedTrace(const char* name) {
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ATraceBegin(name);
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}
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template <typename Fn>
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explicit ScopedTrace(Fn fn) {
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if (UNLIKELY(ATraceEnabled())) {
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ATraceBegin(fn().c_str());
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}
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}
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explicit ScopedTrace(const std::string& name) : ScopedTrace(name.c_str()) {}
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~ScopedTrace() {
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ATraceEnd();
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}
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};
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// Helper for the SCOPED_TRACE macro. Do not use directly.
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class ScopedTraceNoStart {
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public:
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ScopedTraceNoStart() {
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}
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~ScopedTraceNoStart() {
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ATraceEnd();
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}
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// Message helper for the macro. Do not use directly.
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class ScopedTraceMessageHelper {
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public:
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ScopedTraceMessageHelper() {
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}
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~ScopedTraceMessageHelper() {
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ATraceBegin(buffer_.str().c_str());
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}
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std::ostream& stream() {
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return buffer_;
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}
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private:
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std::ostringstream buffer_;
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};
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};
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#define SCOPED_TRACE \
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::art::ScopedTraceNoStart APPEND_TOKENS_AFTER_EVAL(trace, __LINE__) ; \
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(ATraceEnabled()) && ::art::ScopedTraceNoStart::ScopedTraceMessageHelper().stream()
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} // namespace art
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#endif // ART_LIBARTBASE_BASE_SYSTRACE_H_
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