зеркало из https://github.com/mozilla/pjs.git
274 строки
8.5 KiB
C++
274 строки
8.5 KiB
C++
/* -*- Mode: C++; tab-width: 40; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is Mozilla code.
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*
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* The Initial Developer of the Original Code is
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* Mozilla Corporation.
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* Portions created by the Initial Developer are Copyright (C) 2009
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Vladimir Vukicevic <vladimir@pobox.com>
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#ifndef mozilla_FunctionTimer_h
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#define mozilla_FunctionTimer_h
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#include <stdarg.h>
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#include "mozilla/TimeStamp.h"
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#include "nscore.h"
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#include "nsAutoPtr.h"
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#if defined(NS_FORCE_FUNCTION_TIMER) && !defined(NS_FUNCTION_TIMER)
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#define NS_FUNCTION_TIMER
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#endif
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/*
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* Shortcut macros
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*/
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#ifdef NS_FUNCTION_TIMER
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#ifdef __GNUC__
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#define MOZ_FUNCTION_NAME __PRETTY_FUNCTION__
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#elif defined(_MSC_VER)
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#define MOZ_FUNCTION_NAME __FUNCTION__
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#else
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#warning "Define a suitable MOZ_FUNCTION_NAME for this platform"
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#define MOZ_FUNCTION_NAME ""
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#endif
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// Add a timer for this function, from this declaration until the
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// function returns. The function name will be used as the
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// log string, and both function entry and exit will be printed.
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#define NS_TIME_FUNCTION \
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mozilla::FunctionTimer ft__autogen("%s (line %d)", MOZ_FUNCTION_NAME, __LINE__)
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// Add a timer for this block, but print only a) if the exit time is
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// greater than the given number of milliseconds; or b) if the
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// mark-to-mark time is greater than the given number of milliseconds.
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// No function entry will be printed. If the value given is negative,
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// no function entry or exit will ever be printed, but all marks will.
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#define NS_TIME_FUNCTION_MIN(_ms) \
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mozilla::FunctionTimer ft__autogen((_ms), "%s (line %d)", MOZ_FUNCTION_NAME, __LINE__)
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// Add a timer for this block, but print only marks, not function
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// entry and exit. The same as calling the above macro with a negative value.
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#define NS_TIME_FUNCTION_MARK_ONLY \
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mozilla::FunctionTimer ft__autogen((-1), "%s (line %d)", MOZ_FUNCTION_NAME, __LINE__)
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// Add a timer for this block, using the printf-style format.
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// Both function entry and exit will be printed.
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#define NS_TIME_FUNCTION_FMT(...) \
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mozilla::FunctionTimer ft__autogen(__VA_ARGS__)
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// Add a timer for this block, using the given minimum number of
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// milliseconds and the given printf-style format. No function entry
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// will be printed.
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#define NS_TIME_FUNCTION_MIN_FMT(_ms, ...) \
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mozilla::FunctionTimer ft__autogen((_ms), __VA_ARGS__)
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// Add a midway mark for the current timer; an existing timer must
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// have already been created using one of the above macros. The
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// string given by the printf-style format will be logged, as well as
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// the total elapsed time since the creation of the timer, and the
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// time since the last mark.
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#define NS_TIME_FUNCTION_MARK(...) \
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ft__autogen.Mark(__VA_ARGS__)
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// A double value representing the time elapsed since NS_TIME_FUNCTION
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// initialization, in ms.
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#define NS_TIME_FUNCTION_ELAPSED \
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ft__autogen.Elapsed()
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// A double value representing the time elapsed since the last
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// NS_TIME_FUNCTION_MARK, in ms.
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#define NS_TIME_FUNCTION_ELAPSED_SINCE_MARK \
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ft__autogen.ElapsedSinceMark
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#else
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#define NS_TIME_FUNCTION do { } while (0)
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#define NS_TIME_FUNCTION_MIN(_ms) do { } while (0)
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#define NS_TIME_FUNCTION_MARK_ONLY do { } while (0)
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#define NS_TIME_FUNCTION_FMT(...) do { } while (0)
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#define NS_TIME_FUNCTION_MIN_FMT(_ms, ...) do { } while (0)
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#define NS_TIME_FUNCTION_MARK(...) do { } while (0)
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#define NS_TIME_FUNCTION_ELAPSED (0)
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#define NS_TIME_FUNCTION_ELAPSED_SINCE_MARK (0)
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#endif
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namespace mozilla {
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class NS_COM FunctionTimerLog
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{
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public:
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FunctionTimerLog(const char *fname);
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~FunctionTimerLog();
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void LogString(const char *str);
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private:
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void *mFile;
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};
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class NS_COM FunctionTimer
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{
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static nsAutoPtr<FunctionTimerLog> sLog;
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static char *sBuf1;
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static char *sBuf2;
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static int sBufSize;
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static unsigned sDepth;
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enum { BUF_LOG_LENGTH = 1024 };
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public:
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static int InitTimers();
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static int ft_vsnprintf(char *str, int maxlen, const char *fmt, va_list args);
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static int ft_snprintf(char *str, int maxlen, const char *fmt, ...);
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static void LogMessage(const char *s, ...) {
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va_list ap;
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va_start(ap, s);
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if (sLog) {
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ft_vsnprintf(sBuf1, sBufSize, s, ap);
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sLog->LogString(sBuf1);
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}
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va_end(ap);
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}
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private:
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void Init(const char *s, va_list ap) {
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if (mEnabled) {
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TimeInit();
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ft_vsnprintf(mString, BUF_LOG_LENGTH, s, ap);
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ft_snprintf(sBuf1, sBufSize, "> (% 3d)%*s|%s%s", mDepth, mDepth, " ", mHasMinMs ? "?MINMS " : "", mString);
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sLog->LogString(sBuf1);
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}
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}
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public:
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inline void TimeInit() {
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if (mEnabled) {
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mStart = TimeStamp::Now();
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mLastMark = mStart;
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}
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}
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inline double Elapsed() {
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if (mEnabled)
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return (TimeStamp::Now() - mStart).ToSeconds() * 1000.0;
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return 0.0;
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}
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inline double ElapsedSinceMark() {
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if (mEnabled)
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return (TimeStamp::Now() - mLastMark).ToSeconds() * 1000.0;
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return 0.0;
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}
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FunctionTimer(double minms, const char *s, ...)
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: mMinMs(minms), mHasMinMs(PR_TRUE),
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mEnabled(sLog && s && *s), mDepth(++sDepth)
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{
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va_list ap;
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va_start(ap, s);
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Init(s, ap);
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va_end(ap);
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}
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FunctionTimer(const char *s, ...)
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: mMinMs(0.0), mHasMinMs(PR_FALSE),
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mEnabled(sLog && s && *s), mDepth(++sDepth)
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{
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va_list ap;
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va_start(ap, s);
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Init(s, ap);
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va_end(ap);
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}
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void Mark(const char *s, ...)
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{
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va_list ap;
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va_start(ap, s);
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if (mEnabled) {
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ft_vsnprintf(sBuf1, sBufSize, s, ap);
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TimeStamp now(TimeStamp::Now());
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double ms = (now - mStart).ToSeconds() * 1000.0;
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double msl = (now - mLastMark).ToSeconds() * 1000.0;
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mLastMark = now;
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ft_snprintf(sBuf2, sBufSize, "* (% 3d)%*s|%s%9.2f ms (%9.2f ms total) - %s [%s]", mDepth, mDepth, " ",
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(!mHasMinMs || mMinMs < 0.0 || msl > mMinMs) ? "<MINMS " : "", msl, ms, mString, sBuf1);
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sLog->LogString(sBuf2);
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}
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va_end(ap);
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}
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~FunctionTimer() {
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if (mEnabled) {
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TimeStamp now(TimeStamp::Now());
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double ms = (now - mStart).ToSeconds() * 1000.0;
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double msl = (now - mLastMark).ToSeconds() * 1000.0;
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ft_snprintf(sBuf1, sBufSize, "< (% 3d)%*s|%s%9.2f ms (%9.2f ms total) - %s", mDepth, mDepth, " ",
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(!mHasMinMs || (mMinMs >= 0.0 && msl > mMinMs)) ? "" : "<MINMS ", msl, ms, mString);
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sLog->LogString(sBuf1);
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}
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--sDepth;
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}
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TimeStamp mStart, mLastMark;
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const double mMinMs;
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char mString[BUF_LOG_LENGTH+1];
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const PRBool mHasMinMs;
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const PRBool mEnabled;
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const unsigned mDepth;
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};
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} // namespace mozilla
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#endif // mozilla_FunctionTimer_h
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