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370e9d5ac9
Switch over to mozilla::TimeStamp for timing. This should use clock_gettime, mach_absolute_time, ,and QueryPerformanceCounter timing implementations on Linux, OSX, and Windows which are all very efficient. It increases overhead a little bit, but allows for synchronization across cores and the profiler, and is portable. Longer term solution should be to move over to rdtscp for timing. Differential Revision: https://phabricator.services.mozilla.com/D10588 --HG-- extra : moz-landing-system : lando
44 lines
1.6 KiB
C++
44 lines
1.6 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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/* SpiderMonkey TraceLogger APIs. */
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#ifndef js_TraceLoggerAPI_h
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#define js_TraceLoggerAPI_h
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#include "jstypes.h"
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namespace JS {
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#ifdef JS_TRACE_LOGGING
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// Begin trace logging events. This will activate some of the
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// textId's for various events and set the global option
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// JSJITCOMPILER_ENABLE_TRACELOGGER to true.
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// This does nothing except return if the trace logger is already active.
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extern JS_PUBLIC_API(void)
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StartTraceLogger(JSContext *cx, mozilla::TimeStamp profilerStart);
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// Stop trace logging events. All textId's will be set to false, and the
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// global JSJITCOMPILER_ENABLE_TRACELOGGER will be set to false.
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// This does nothing except return if the trace logger is not active.
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extern JS_PUBLIC_API(void)
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StopTraceLogger(JSContext *cx);
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// Clear and free any event data that was recorded by the trace logger.
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extern JS_PUBLIC_API(void)
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ResetTraceLogger(void);
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#else
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// Define empty inline functions for when trace logging compilation is not
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// enabled. TraceLogging.cpp will not be built in that case so we need to
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// provide something for any routines that reference these.
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inline void StartTraceLogger(JSContext *cx, mozilla::TimeStamp profilerStart) {}
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inline void StopTraceLogger(JSContext *cx) {}
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inline void ResetTraceLogger(void) {}
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#endif
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};
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#endif /* js_TraceLoggerAPI_h */
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