зеркало из https://github.com/mozilla/pjs.git
133 строки
3.8 KiB
C++
133 строки
3.8 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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// needed to get vsnprintf with glibc
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#ifndef _ISOC99_SOURCE
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#define _ISOC99_SOURCE
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#endif
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#include <stdarg.h>
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#include <stdio.h>
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#include <string.h>
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#include "prenv.h"
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#include "mozilla/FunctionTimer.h"
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#ifdef _MSC_VER
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#define vsnprintf _vsnprintf
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#endif
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using namespace mozilla;
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// This /must/ come before the call to InitTimers below,
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// or its constructor will be called after we've already
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// assigned the Now() value to it.
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static TimeStamp sAppStart;
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FunctionTimerLog *FunctionTimer::sLog = nsnull;
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char *FunctionTimer::sBuf1 = nsnull;
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char *FunctionTimer::sBuf2 = nsnull;
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int FunctionTimer::sBufSize = FunctionTimer::InitTimers();
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int
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FunctionTimer::InitTimers()
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{
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if (PR_GetEnv("MOZ_FT") == NULL)
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return 0;
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// ensure that this is initialized before us
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TimeStamp::Startup();
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sLog = new FunctionTimerLog(PR_GetEnv("MOZ_FT"));
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sBuf1 = (char *) malloc(BUF_LOG_LENGTH);
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sBuf2 = (char *) malloc(BUF_LOG_LENGTH);
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sAppStart = TimeStamp::Now();
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return BUF_LOG_LENGTH;
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}
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FunctionTimerLog::FunctionTimerLog(const char *fname)
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{
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if (strcmp(fname, "stdout") == 0) {
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mFile = stdout;
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} else if (strcmp(fname, "stderr") == 0) {
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mFile = stderr;
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} else {
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FILE *fp = fopen(fname, "wb");
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if (!fp) {
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NS_WARNING("FunctionTimerLog: Failed to open file specified, logging disabled!");
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}
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mFile = fp;
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}
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}
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FunctionTimerLog::~FunctionTimerLog()
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{
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if (mFile && mFile != stdout && mFile != stderr)
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fclose((FILE*)mFile);
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}
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void
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FunctionTimerLog::LogString(const char *str)
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{
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if (mFile) {
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TimeDuration elapsed = TimeStamp::Now() - sAppStart;
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fprintf((FILE*)mFile, "[% 9.2f] %s\n", elapsed.ToSeconds() * 1000.0, str);
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}
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}
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int
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FunctionTimer::ft_vsnprintf(char *str, int maxlen, const char *fmt, va_list args)
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{
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return vsnprintf(str, maxlen, fmt, args);
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}
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int
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FunctionTimer::ft_snprintf(char *str, int maxlen, const char *fmt, ...)
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{
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va_list ap;
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va_start(ap, fmt);
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int rval = ft_vsnprintf(str, maxlen, fmt, ap);
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va_end(ap);
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return rval;
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}
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