зеркало из https://github.com/mozilla/gecko-dev.git
85 строки
2.5 KiB
C++
85 строки
2.5 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
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*
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* The contents of this file are subject to the Netscape Public
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* License Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.mozilla.org/NPL/
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*
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* Software distributed under the License is distributed on an "AS
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* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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* implied. See the License for the specific language governing
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* rights and limitations under the License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All
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* Rights Reserved.
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*
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* Contributor(s):
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*/
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#ifndef _TIMER_H_
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#define _TIMER_H_
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#include "Fundamentals.h"
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#include "HashTable.h"
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#include "prtime.h"
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//
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// Naming convention:
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// As the class Timer contains only static methods, the timer's name should start with the
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// module name. Otherwise starting 2 timers with the same name will assert.
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//
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#ifndef NO_TIMER
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struct TimerEntry
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{
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PRTime *startTime; // Current time when we start the timer.
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PRTime accumulator; // Time spent in this timer.
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bool running; // True if the timer is running.
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bool done; // True if the timer was running and was stopped.
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};
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class Timer
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{
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private:
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// Return the named timer.
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static TimerEntry& getTimerEntry(const char* name);
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// Return a reference to a new Timer.
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static PRTime& getNewTimer();
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public:
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// Start the timer.
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static void start(const char* name);
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// Stop the timer.
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static void stop(const char* name);
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// Freeze all the running timers.
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static void freezeTimers();
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// Unfreeze all the running timers.
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static void unfreezeTimers();
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// Print the timer.
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static void print(FILE* f, const char *name);
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};
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inline void startTimer(const char* name) {Timer::start(name);}
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inline void stopTimer(const char* name) {Timer::stop(name); Timer::print(stdout, name);}
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#define START_TIMER_SAFE Timer::freezeTimers();
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#define END_TIMER_SAFE Timer::unfreezeTimers();
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#define TIMER_SAFE(x) START_TIMER_SAFE x; END_TIMER_SAFE
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#else /* NO_TIMER */
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inline void startTimer(const char* /*name*/) {}
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inline void stopTimer(const char* /*name*/) {}
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#define START_TIMER_SAFE
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#define END_TIMER_SAFE
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#define TIMER_SAFE(x) x;
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#endif /* NO_TIMER */
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#endif /* _TIMER_H_ */
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