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170 lines
4.5 KiB
170 lines
4.5 KiB
/****************************************************************************
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**
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** Implementation of TQLibraryPrivate class
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**
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** Created : 000101
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**
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** Copyright (C) 2000-2008 Trolltech ASA. All rights reserved.
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**
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** This file is part of the tools module of the TQt GUI Toolkit.
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**
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** This file may be used under the terms of the GNU General
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** Public License versions 2.0 or 3.0 as published by the Free
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** Software Foundation and appearing in the files LICENSE.GPL2
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** and LICENSE.GPL3 included in the packaging of this file.
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** Alternatively you may (at your option) use any later version
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** of the GNU General Public License if such license has been
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** publicly approved by Trolltech ASA (or its successors, if any)
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** and the KDE Free TQt Foundation.
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**
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** Please review the following information to ensure GNU General
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** Public Licensing requirements will be met:
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** http://trolltech.com/products/qt/licenses/licensing/opensource/.
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** If you are unsure which license is appropriate for your use, please
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** review the following information:
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** http://trolltech.com/products/qt/licenses/licensing/licensingoverview
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** or contact the sales department at sales@trolltech.com.
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**
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** This file may be used under the terms of the Q Public License as
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** defined by Trolltech ASA and appearing in the file LICENSE.TQPL
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** included in the packaging of this file. Licensees holding valid TQt
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** Commercial licenses may use this file in accordance with the TQt
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** Commercial License Agreement provided with the Software.
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**
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** This file is provided "AS IS" with NO WARRANTY OF ANY KIND,
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** INCLUDING THE WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR
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** A PARTICULAR PURPOSE. Trolltech reserves all rights not granted
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** herein.
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**
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**********************************************************************/
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#include "qplatformdefs.h"
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#include "private/qlibrary_p.h"
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#ifndef TQT_NO_LIBRARY
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#if defined(QT_AOUT_UNDERSCORE)
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#include <string.h>
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#endif
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/*
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The platform dependent implementations of
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- loadLibrary
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- freeLibrary
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- resolveSymbol
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It's not too hard to guess what the functions do.
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*/
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#if defined(QT_HPUX_LD) // for HP-UX < 11.x and 32 bit
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bool TQLibraryPrivate::loadLibrary()
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{
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if ( pHnd )
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return TRUE;
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TQString filename = library->library();
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pHnd = (void*)shl_load( filename.latin1(), BIND_DEFERRED | BIND_NONFATAL | DYNAMIC_PATH, 0 );
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#if defined(QT_DEBUG) || defined(QT_DEBUG_COMPONENT)
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if ( !pHnd )
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tqWarning( "%s: failed to load library!", filename.latin1() );
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#endif
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return pHnd != 0;
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}
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bool TQLibraryPrivate::freeLibrary()
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{
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if ( !pHnd )
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return TRUE;
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if ( shl_unload( (shl_t)pHnd ) ) {
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#if defined(QT_DEBUG) || defined(QT_DEBUG_COMPONENT)
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TQString filename = library->library();
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tqWarning( "%s: Failed to unload library!", filename.latin1() );
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#endif
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return FALSE;
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}
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pHnd = 0;
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return TRUE;
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}
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void* TQLibraryPrivate::resolveSymbol( const char* symbol )
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{
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if ( !pHnd )
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return 0;
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void* address = 0;
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if ( shl_findsym( (shl_t*)&pHnd, symbol, TYPE_UNDEFINED, &address ) < 0 ) {
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#if defined(QT_DEBUG_COMPONENT)
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TQString filename = library->library();
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tqWarning( "%s: couldn't resolve symbol \"%s\"", filename.latin1(), symbol );
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#endif
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}
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return address;
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}
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#else // POSIX
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#include <dlfcn.h>
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#ifndef DL_PREFIX //for mac dlcompat
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# define DL_PREFIX(x) x
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#endif
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bool TQLibraryPrivate::loadLibrary()
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{
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if ( pHnd )
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return TRUE;
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TQString filename = library->library();
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pHnd = DL_PREFIX(dlopen)( filename.latin1(), RTLD_LAZY );
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#if defined(QT_DEBUG) || defined(QT_DEBUG_COMPONENT)
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if ( !pHnd )
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tqWarning( "%s", DL_PREFIX(dlerror)() );
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#endif
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return pHnd != 0;
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}
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bool TQLibraryPrivate::freeLibrary()
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{
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if ( !pHnd )
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return TRUE;
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if ( DL_PREFIX(dlclose)( pHnd ) ) {
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#if defined(QT_DEBUG) || defined(QT_DEBUG_COMPONENT)
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tqWarning( "%s", DL_PREFIX(dlerror)() );
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#endif
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return FALSE;
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}
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pHnd = 0;
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return TRUE;
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}
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void* TQLibraryPrivate::resolveSymbol( const char* symbol )
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{
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if ( !pHnd )
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return 0;
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#if defined(QT_AOUT_UNDERSCORE)
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// older a.out systems add an underscore in front of symbols
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char* undrscr_symbol = new char[strlen(symbol)+2];
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undrscr_symbol[0] = '_';
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strcpy(undrscr_symbol+1, symbol);
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void* address = DL_PREFIX(dlsym)( pHnd, undrscr_symbol );
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delete [] undrscr_symbol;
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#else
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void* address = DL_PREFIX(dlsym)( pHnd, symbol );
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#endif
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#if defined(QT_DEBUG_COMPONENT)
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const char* error = DL_PREFIX(dlerror)();
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if ( error )
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tqWarning( "%s", error );
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#endif
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return address;
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}
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#endif // POSIX
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#endif
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