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libreoffice/sal/rtl/source/logfile.cxx
Kurt Zenker fbaed5c374 INTEGRATION: CWS cd02 (1.7.52); FILE MERGED 
2004/11/08 15:46:18 sb 1.7.52.1: #i36858# Added rtl_logfile_longTrace to improve performance (no unnecessary calls to osl_getGlobalTimer).
2005-01-13 18:11:09 +00:00

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/*************************************************************************
*
* $RCSfile: logfile.cxx,v $
*
* $Revision: 1.8 $
*
* last change: $Author: kz $ $Date: 2005-01-13 19:11:09 $
*
* The Contents of this file are made available subject to the terms of
* either of the following licenses
*
* - GNU Lesser General Public License Version 2.1
* - Sun Industry Standards Source License Version 1.1
*
* Sun Microsystems Inc., October, 2000
*
* GNU Lesser General Public License Version 2.1
* =============================================
* Copyright 2000 by Sun Microsystems, Inc.
* 901 San Antonio Road, Palo Alto, CA 94303, USA
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License version 2.1, as published by the Free Software Foundation.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*
*
* Sun Industry Standards Source License Version 1.1
* =================================================
* The contents of this file are subject to the Sun Industry Standards
* Source License Version 1.1 (the "License"); You may not use this file
* except in compliance with the License. You may obtain a copy of the
* License at http://www.openoffice.org/license.html.
*
* Software provided under this License is provided on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING,
* WITHOUT LIMITATION, WARRANTIES THAT THE SOFTWARE IS FREE OF DEFECTS,
* MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE, OR NON-INFRINGING.
* See the License for the specific provisions governing your rights and
* obligations concerning the Software.
*
* The Initial Developer of the Original Code is: Sun Microsystems, Inc.
*
* Copyright: 2001 by Sun Microsystems, Inc.
*
* All Rights Reserved.
*
* Contributor(s): _______________________________________
*
*
************************************************************************/
#include <cstdarg>
#include <cstdio>
#include <stdio.h>
#include <stdarg.h>
#include <rtl/logfile.h>
#ifndef _OSL_PROCESS_H_
#include <osl/process.h>
#endif
#ifndef _OSL_FILE_H_
#include <osl/time.h>
#endif
#ifndef _OSL_TIME_H_
#include <osl/time.h>
#endif
#ifndef _OSL_MUTEX_HXX_
#include <osl/mutex.hxx>
#endif
#ifndef _RTL_BOOTSTRAP_H_
#include <rtl/bootstrap.h>
#endif
#ifndef _RTL_USTRING_HXX_
#include <rtl/ustring.hxx>
#endif
#ifndef _RTL_STRBUF_HXX_
#include <rtl/ustrbuf.hxx>
#endif
#ifndef _RTL_ALLOC_H_
#include <rtl/alloc.h>
#endif
#include "osl/thread.h"
#include <algorithm>
#ifdef _MSC_VER
#define vsnprintf _vsnprintf
#endif
using namespace rtl;
using namespace osl;
using namespace std;
namespace {
static oslFileHandle g_aFile = 0;
static sal_Bool g_bHasBeenCalled = sal_False;
static const sal_Int32 g_BUFFERSIZE = 4096;
static sal_Char *g_buffer = 0;
class LoggerGuard
{
public:
~LoggerGuard();
};
LoggerGuard::~LoggerGuard()
{
if( g_buffer )
{
sal_Int64 nWritten, nConverted =
sprintf( g_buffer, "closing log file at %06lu", osl_getGlobalTimer() );
if( nConverted > 0 )
osl_writeFile( g_aFile, g_buffer, nConverted, (sal_uInt64 *)&nWritten );
osl_closeFile( g_aFile );
g_aFile = 0;
rtl_freeMemory( g_buffer );
g_buffer = 0;
g_bHasBeenCalled = sal_False;
}
}
Mutex & getLogMutex()
{
static Mutex *pMutex = 0;
if( !pMutex )
{
MutexGuard guard( Mutex::getGlobalMutex() );
if( ! pMutex )
{
static Mutex mutex;
pMutex = &mutex;
}
}
return *pMutex;
}
OUString getFileUrl( const OUString &name )
{
OUString aRet;
OSL_VERIFY( osl_getFileURLFromSystemPath( name.pData, &aRet.pData ) == osl_File_E_None );
OUString aWorkingDirectory;
osl_getProcessWorkingDir( &(aWorkingDirectory.pData) );
osl_getAbsoluteFileURL( aWorkingDirectory.pData, aRet.pData, &(aRet.pData) );
return aRet;
}
void init() {
if( !g_bHasBeenCalled )
{
MutexGuard guard( getLogMutex() );
if( ! g_bHasBeenCalled )
{
OUString name( RTL_CONSTASCII_USTRINGPARAM( "RTL_LOGFILE" ) );
OUString value;
if( rtl_bootstrap_get( name.pData, &value.pData, 0 ) )
{
// Obtain process id.
oslProcessIdentifier aProcessId = 0;
oslProcessInfo info;
info.Size = sizeof (oslProcessInfo);
if (osl_getProcessInfo (0, osl_Process_IDENTIFIER, &info) == osl_Process_E_None)
aProcessId = info.Ident;
// Construct name of log file and open the file.
OUStringBuffer buf( 128 );
buf.append( value );
// if the filename ends with .nopid, the incoming filename is not modified
if( value.getLength() < 6 /* ".nopid" */ ||
rtl_ustr_ascii_compare_WithLength(
value.getStr() + (value.getLength()-6) , 6 , ".nopid" ) )
{
buf.appendAscii( "_" );
buf.append( (sal_Int32) aProcessId );
buf.appendAscii( ".log" );
}
OUString o = getFileUrl( buf.makeStringAndClear() );
oslFileError e = osl_openFile(
o.pData, &g_aFile, osl_File_OpenFlag_Write|osl_File_OpenFlag_Create);
if( osl_File_E_None == e )
{
TimeValue aCurrentTime;
//Allocing a g_buffer implies the need for a LoggerGuard, this
//method is already double-locked, so no need for rtl::Static
static LoggerGuard guard;
g_buffer = ( sal_Char * ) rtl_allocateMemory( g_BUFFERSIZE );
sal_Int64 nConverted = 0;
sal_Int64 nWritten = 0;
if (osl_getSystemTime (&aCurrentTime))
{
nConverted = (sal_Int64 ) sprintf (
g_buffer,
"opening log file %f seconds past January 1st 1970\n"
"corresponding to %lu ms after timer start\n",
aCurrentTime.Seconds + 1e-9 * aCurrentTime.Nanosec,
osl_getGlobalTimer());
sal_Int64 nWritten;
if( nConverted > 0 )
osl_writeFile( g_aFile, g_buffer, nConverted , (sal_uInt64 *)&nWritten );
}
nConverted = sprintf (g_buffer, "Process id is %lu\n", aProcessId);
if( nConverted )
osl_writeFile( g_aFile, g_buffer, nConverted, (sal_uInt64 *)&nWritten );
}
else
{
OSL_TRACE( "Couldn't open logfile %s(%d)" , o.getStr(), e );
}
}
g_bHasBeenCalled = sal_True;
}
}
}
}
extern "C" void SAL_CALL rtl_logfile_trace ( const char *pszFormat, ... )
{
init();
if( g_buffer )
{
va_list args;
va_start(args, pszFormat);
{
sal_Int64 nConverted, nWritten;
MutexGuard guard( getLogMutex() );
nConverted = vsnprintf( g_buffer , g_BUFFERSIZE, pszFormat, args );
nConverted = (nConverted > g_BUFFERSIZE ? g_BUFFERSIZE : nConverted );
if( nConverted > 0 )
osl_writeFile( g_aFile, g_buffer, nConverted, (sal_uInt64*)&nWritten );
}
va_end(args);
}
}
extern "C" void SAL_CALL rtl_logfile_longTrace(char const * format, ...) {
init();
if (g_buffer != 0) {
sal_uInt32 time = osl_getGlobalTimer();
oslThreadIdentifier threadId = osl_getThreadIdentifier(0);
va_list args;
va_start(args, format);
{
MutexGuard g(getLogMutex());
int n1 = snprintf(
g_buffer, g_BUFFERSIZE, "%06lu %lu ", time, threadId);
if (n1 >= 0) {
sal_uInt64 n2;
osl_writeFile(
g_aFile, g_buffer,
static_cast< sal_uInt64 >(
std::min(n1, static_cast< int >(g_BUFFERSIZE))),
&n2);
n1 = vsnprintf(g_buffer, g_BUFFERSIZE, format, args);
if (n1 > 0) {
osl_writeFile(
g_aFile, g_buffer,
static_cast< sal_uInt64 >(
std::min(n1, static_cast< int >(g_BUFFERSIZE))),
&n2);
}
}
}
va_end(args);
}
}
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