office-gobmx/vcl/unx/kde/UnxCommandThread.cxx
jailletc36 de51745f58 Turn some memmove into memcpy when it is safe to do so.
Most of the changes are related to newly allocated memory, so we are
sure it can not overlap with the source of the copy.

Change-Id: Ie6ccf1bbb07b792fb18601a38dfaa55755d14b7d
Signed-off-by: jailletc36 <christophe.jaillet@wanadoo.fr>
Reviewed-on: https://gerrit.libreoffice.org/1033
Reviewed-by: Tor Lillqvist <tml@iki.fi>
Tested-by: Caolán McNamara <caolanm@redhat.com>
Reviewed-by: Caolán McNamara <caolanm@redhat.com>
2012-11-14 16:48:17 +00:00

305 lines
9 KiB
C++

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0 .
*/
#include <UnxCommandThread.hxx>
#include <UnxNotifyThread.hxx>
#include <rtl/ustring.hxx>
#include <rtl/ustrbuf.hxx>
#include <unistd.h>
#include <string.h>
#include <iostream>
using namespace ::com::sun::star;
//////////////////////////////////////////////////////////////////////////
// UnxFilePickerCommandThread
//////////////////////////////////////////////////////////////////////////
UnxFilePickerCommandThread::UnxFilePickerCommandThread( UnxFilePickerNotifyThread *pNotifyThread, int nReadFD )
: m_pNotifyThread( pNotifyThread ),
m_nReadFD( nReadFD )
{
}
UnxFilePickerCommandThread::~UnxFilePickerCommandThread()
{
}
sal_Bool SAL_CALL UnxFilePickerCommandThread::result()
{
::osl::MutexGuard aGuard( m_aMutex );
return m_aResult;
}
::rtl::OUString SAL_CALL UnxFilePickerCommandThread::getCurrentFilter()
{
::osl::MutexGuard aGuard( m_aMutex );
return m_aGetCurrentFilter;
}
::rtl::OUString SAL_CALL UnxFilePickerCommandThread::getDirectory()
{
::osl::MutexGuard aGuard( m_aMutex );
return m_aGetDirectory;
}
uno::Sequence< ::rtl::OUString > SAL_CALL UnxFilePickerCommandThread::getFiles()
{
::osl::MutexGuard aGuard( m_aMutex );
sal_Int32 nSize = m_aGetFiles.size();
uno::Sequence< ::rtl::OUString > aFiles( ( nSize > 1 )? nSize + 1: nSize );
if ( nSize == 1 )
aFiles[0] = m_aGetFiles.front();
else if ( nSize > 1 )
{
// First entry in the sequence must be the dirname, the others are the
// filenames, so we have to rearrange the list...
::rtl::OUString aFront = m_aGetFiles.front();
sal_Int32 nLastSlash = aFront.lastIndexOf( '/' );
aFiles[0] = ( nLastSlash >= 0 )? aFront.copy( 0, nLastSlash ): ::rtl::OUString();
++nLastSlash;
sal_Int32 nIdx = 1;
for ( ::std::list< ::rtl::OUString >::const_iterator it = m_aGetFiles.begin();
it != m_aGetFiles.end(); ++it, ++nIdx )
{
sal_Int32 nLength = (*it).getLength() - nLastSlash;
aFiles[nIdx] = ( nLength >= 0 )? (*it).copy( nLastSlash, nLength ): ::rtl::OUString();
}
}
return aFiles;
}
uno::Any SAL_CALL UnxFilePickerCommandThread::getValue()
{
::osl::MutexGuard aGuard( m_aMutex );
return m_aGetValue;
}
void SAL_CALL UnxFilePickerCommandThread::run()
{
if ( m_nReadFD < 0 )
return;
sal_Int32 nBufferSize = 1024; // 1 is for testing, 1024 for real use
sal_Char *pBuffer = new sal_Char[nBufferSize];
sal_Char *pBufferEnd = pBuffer + nBufferSize;
sal_Char *pWhereToRead = pBuffer;
sal_Char *pEntryBegin = pBuffer;
sal_Int32 nBytesRead = 0;
sal_Bool bShouldExit = sal_False;
while ( !bShouldExit && ( nBytesRead = read( m_nReadFD, pWhereToRead, pBufferEnd - pWhereToRead ) ) > 0 )
{
sal_Bool bFoundNL = sal_False;
sal_Char *pWhereToReadEnd = pWhereToRead + nBytesRead;
sal_Char *pEntryEnd = pWhereToRead;
do {
for ( ; pEntryEnd < pWhereToReadEnd && *pEntryEnd != '\n'; ++pEntryEnd )
;
if ( pEntryEnd < pWhereToReadEnd )
{
bFoundNL = sal_True;
*pEntryEnd = 0;
if ( strcmp( pEntryBegin, "exited" ) == 0 )
bShouldExit = sal_True;
else
handleCommand( ::rtl::OUString( pEntryBegin, pEntryEnd - pEntryBegin, RTL_TEXTENCODING_UTF8 )/*, bQuit*/ );
pEntryBegin = pEntryEnd + 1;
}
} while ( pEntryEnd < pWhereToReadEnd );
if ( bFoundNL )
{
if ( pEntryBegin < pBufferEnd )
memmove( pBuffer, pEntryBegin, pWhereToReadEnd - pEntryBegin );
}
else
{
// enlarge the buffer size
nBufferSize *= 2;
sal_Char *pNewBuffer = new sal_Char[nBufferSize];
if ( pEntryBegin < pBufferEnd )
memcpy( pNewBuffer, pEntryBegin, pWhereToReadEnd - pEntryBegin );
delete[] pBuffer;
pBuffer = pNewBuffer;
pBufferEnd = pBuffer + nBufferSize;
}
pWhereToRead = pBuffer + ( pWhereToReadEnd - pEntryBegin );
pEntryBegin = pBuffer;
}
}
void SAL_CALL UnxFilePickerCommandThread::handleCommand( const ::rtl::OUString &rCommand )
{
::osl::MutexGuard aGuard( m_aMutex );
#if OSL_DEBUG_LEVEL > 0
::std::cerr << "UnxFilePicker received: \"" <<
OUStringToOString( rCommand, RTL_TEXTENCODING_ASCII_US ).getStr() << "\"" << ::std::endl;
#endif
::std::list< ::rtl::OUString > aList = tokenize( rCommand );
if ( aList.empty() )
return;
::rtl::OUString aCommandName = aList.front();
aList.pop_front();
if ( aCommandName == "accept" )
{
m_aResult = sal_True;
m_aExecCondition.set();
}
else if ( aCommandName == "reject" )
{
m_aResult = sal_False;
m_aExecCondition.set();
}
else if ( aCommandName == "fileSelectionChanged" )
{
if ( m_pNotifyThread )
m_pNotifyThread->fileSelectionChanged();
}
else if ( aCommandName == "files" )
{
m_aGetFiles = aList;
m_aGetFilesCondition.set();
}
else if ( aCommandName == "value" )
{
::rtl::OUString aType;
if ( !aList.empty() )
{
aType = aList.front();
aList.pop_front();
}
if ( aType == "bool" )
{
sal_Bool bValue = !aList.empty() && aList.front().equalsIgnoreAsciiCaseAsciiL(RTL_CONSTASCII_STRINGPARAM("true"));
m_aGetValue <<= bValue;
m_aGetValueCondition.set();
}
else if ( aType == "int" )
{
sal_Int32 nValue = 0;
if ( !aList.empty() )
nValue = aList.front().toInt32();
m_aGetValue <<= nValue;
m_aGetValueCondition.set();
}
else if ( aType == "string" )
{
::rtl::OUString aValue;
if ( !aList.empty() )
aValue = aList.front();
m_aGetValue <<= aValue;
m_aGetValueCondition.set();
}
else if ( aType == "stringList" )
{
uno::Sequence< ::rtl::OUString > aSequence( aList.size() );
sal_Int32 nIdx = 0;
for ( ::std::list< ::rtl::OUString >::const_iterator it = aList.begin(); it != aList.end(); ++it, ++nIdx )
aSequence[nIdx] = (*it);
m_aGetValue <<= aSequence;
m_aGetValueCondition.set();
}
else
{
m_aGetValue = uno::Any();
m_aGetValueCondition.set();
}
}
else if ( aCommandName == "currentFilter" )
{
m_aGetCurrentFilter = aList.empty()? ::rtl::OUString(): aList.front();
m_aGetCurrentFilterCondition.set();
}
else if ( aCommandName == "currentDirectory" )
{
m_aGetDirectory = aList.empty()? ::rtl::OUString(): aList.front();
m_aGetDirectoryCondition.set();
}
else
{
#if OSL_DEBUG_LEVEL > 0
::std::cerr << "Unrecognized command: "
<< OUStringToOString( aCommandName, RTL_TEXTENCODING_ASCII_US ).getStr() << "\"" << ::std::endl;
#endif
}
}
::std::list< ::rtl::OUString > SAL_CALL UnxFilePickerCommandThread::tokenize( const ::rtl::OUString &rCommand )
{
::std::list< ::rtl::OUString > aList;
::rtl::OUStringBuffer aBuffer( 1024 );
const sal_Unicode *pUnicode = rCommand.getStr();
const sal_Unicode *pEnd = pUnicode + rCommand.getLength();
sal_Bool bQuoted = sal_False;
for ( ; pUnicode != pEnd; ++pUnicode )
{
if ( *pUnicode == '\\' )
{
++pUnicode;
if ( pUnicode != pEnd )
{
if ( *pUnicode == 'n' )
aBuffer.appendAscii( "\n", 1 );
else
aBuffer.append( *pUnicode );
}
}
else if ( *pUnicode == '"' )
bQuoted = !bQuoted;
else if ( *pUnicode == ' ' && !bQuoted )
aList.push_back( aBuffer.makeStringAndClear() );
else
aBuffer.append( *pUnicode );
}
aList.push_back( aBuffer.makeStringAndClear() );
return aList;
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */