78fcd3ab59
* include/hbextern.ch
+ Added new trace functions.
; TODO: Use these new functions in HBQT, HBXBP.
* contrib/hbwin/win_dll.c
! Fix for OpenWatcom. Seems to require LPVOID in asm code.
* contrib/hbqt/hbqt_destruct.cpp
* Minor formatting. ('return( x )' -> 'return x', return is not a function)
+ Added 'TODO:' to todo text.
+ Added TOFIX to hb_parptr() usage. Without reference counting this is
still dangerous.
Probably some mechanisms would be needed to count references when
attaching one GC collected pointer to another object, and decrement
references when disconnecting or deleting holder object. Without
this, there will always be a possibility that some objects refer
to deleted objects. Unless I'm missing some logic which already that.
Probably "delayed release" is the mechanism which is trying to
solve that problem at the moment.
* contrib/hbwin/wapi_winbase_mutex.c
* Minor formatting (superfluous brackets)
126 lines
3.7 KiB
C
126 lines
3.7 KiB
C
/*
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* $Id$
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*/
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/*
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* Harbour Project source code:
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* Windows Mutex functions
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*
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* Copyright 2009 Xavi <jarabal/at/gmail.com>
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* www - http://www.harbour-project.org
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this software; see the file COPYING. If not, write to
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* the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
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* Boston, MA 02111-1307 USA (or visit the web site http://www.gnu.org/).
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*
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* As a special exception, the Harbour Project gives permission for
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* additional uses of the text contained in its release of Harbour.
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*
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* The exception is that, if you link the Harbour libraries with other
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* files to produce an executable, this does not by itself cause the
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* resulting executable to be covered by the GNU General Public License.
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* Your use of that executable is in no way restricted on account of
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* linking the Harbour library code into it.
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*
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* This exception does not however invalidate any other reasons why
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* the executable file might be covered by the GNU General Public License.
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*
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* This exception applies only to the code released by the Harbour
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* Project under the name Harbour. If you copy code from other
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* Harbour Project or Free Software Foundation releases into a copy of
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* Harbour, as the General Public License permits, the exception does
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* not apply to the code that you add in this way. To avoid misleading
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* anyone as to the status of such modified files, you must delete
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* this exception notice from them.
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*
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* If you write modifications of your own for Harbour, it is your choice
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* whether to permit this exception to apply to your modifications.
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* If you do not wish that, delete this exception notice.
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*
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*/
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#define HB_OS_WIN_USED
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#include "hbapi.h"
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#include "hbwinuni.h"
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static HB_GARBAGE_FUNC( wapi_mutex_release )
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{
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void ** ph = ( void ** ) Cargo;
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if( ph && *ph )
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{
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CloseHandle( ( HANDLE ) *ph );
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*ph = NULL;
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}
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}
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static const HB_GC_FUNCS s_gc_wapi_mutex_funcs =
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{
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wapi_mutex_release,
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hb_gcDummyMark
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};
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static void wapi_mutex_ret( HANDLE hMutex )
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{
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if( hMutex )
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{
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void ** ph = ( void ** ) hb_gcAllocate( sizeof( HANDLE * ), &s_gc_wapi_mutex_funcs );
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*ph = hMutex;
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hb_retptrGC( ph );
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}
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else
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hb_retptr( NULL );
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}
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static HANDLE wapi_mutex_par( int iParam )
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{
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void ** ph = ( void ** ) hb_parptrGC( &s_gc_wapi_mutex_funcs, iParam );
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return ph ? ( HANDLE ) *ph : NULL;
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}
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/* HANDLE WINAPI CreateMutex( LPSECURITY_ATTRIBUTES lpMutexAttributes, BOOL bInitialOwner, LPCTSTR lpName ) */
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HB_FUNC( WAPI_CREATEMUTEX )
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{
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void * hName;
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HANDLE hMutex = CreateMutex( ( LPSECURITY_ATTRIBUTES ) hb_parptr( 1 ), hb_parl( 2 ), HB_PARSTR( 3, &hName, NULL ) );
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wapi_mutex_ret( hMutex );
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hb_strfree( hName );
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}
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/* HANDLE WINAPI OpenMutex( DWORD dwDesiredAccess, BOOL bInheritHandle, LPCTSTR lpName ) */
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HB_FUNC( WAPI_OPENMUTEX )
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{
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#if ! defined( HB_OS_WIN_CE )
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void * hName;
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HANDLE hMutex = OpenMutex( hb_parnl( 1 ), hb_parl( 2 ), HB_PARSTR( 3, &hName, NULL ) );
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wapi_mutex_ret( hMutex );
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hb_strfree( hName );
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#else
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hb_retptr( NULL );
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#endif
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}
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/* BOOL WINAPI ReleaseMutex( HANDLE hMutex ) */
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HB_FUNC( WAPI_RELEASEMUTEX )
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{
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HANDLE hMutex = wapi_mutex_par( 1 );
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hb_retl( hMutex ? ReleaseMutex( hMutex ) : HB_FALSE );
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}
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