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90 lines
3.3 KiB
C++
90 lines
3.3 KiB
C++
/*
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* Copyright (C) 2011 Google Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following disclaimer
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* in the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Google Inc. nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef EventTracer_h
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#define EventTracer_h
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#include "platform/PlatformExport.h"
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#include "wtf/RefCounted.h"
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#include "wtf/RefPtr.h"
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#include "wtf/text/WTFString.h"
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#include <stdint.h>
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// This will mark the trace event as disabled by default. The user will need
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// to explicitly enable the event.
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#define TRACE_DISABLED_BY_DEFAULT(name) "disabled-by-default-" name
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namespace blink {
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namespace TraceEvent {
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typedef uint64_t TraceEventHandle;
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class PLATFORM_EXPORT ConvertableToTraceFormat : public RefCounted<ConvertableToTraceFormat> {
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public:
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virtual String asTraceFormat() const = 0;
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virtual ~ConvertableToTraceFormat() { }
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};
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}
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// FIXME: Make these global variables thread-safe. Make a value update atomic.
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PLATFORM_EXPORT extern long* traceSamplingState[3];
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class PLATFORM_EXPORT EventTracer {
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public:
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static void initialize();
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static const unsigned char* getTraceCategoryEnabledFlag(const char*);
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static TraceEvent::TraceEventHandle addTraceEvent(char phase,
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const unsigned char* categoryEnabledFlag,
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const char* name,
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unsigned long long id,
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int numArgs,
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const char* argNames[],
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const unsigned char argTypes[],
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const unsigned long long argValues[],
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TraceEvent::ConvertableToTraceFormat*[],
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unsigned char flags);
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static TraceEvent::TraceEventHandle addTraceEvent(char phase,
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const unsigned char* categoryEnabledFlag,
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const char* name,
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unsigned long long id,
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int numArgs,
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const char* argNames[],
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const unsigned char argTypes[],
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const unsigned long long argValues[],
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unsigned char flags);
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static void updateTraceEventDuration(const unsigned char* categoryEnabledFlag, const char* name, TraceEvent::TraceEventHandle);
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};
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} // namespace blink
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#endif // EventTracer_h
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