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131 lines
3.9 KiB
C
131 lines
3.9 KiB
C
/*
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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://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.txt. 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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#include "hbwapi.h"
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static HB_GARBAGE_FUNC( hbwapi_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_hbwapi_mutex_funcs =
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{
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hbwapi_mutex_release,
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hb_gcDummyMark
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};
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static void hbwapi_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_hbwapi_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 hbwapi_mutex_par( int iParam )
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{
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void ** ph = ( void ** ) hb_parptrGC( &s_gc_hbwapi_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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hbwapi_SetLastError( GetLastError() );
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hbwapi_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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hbwapi_SetLastError( GetLastError() );
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hbwapi_mutex_ret( hMutex );
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hb_strfree( hName );
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#else
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/* WinCE (WinMobile6) does not support OpenMutex() */
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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 = hbwapi_mutex_par( 1 );
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if( hMutex )
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{
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BOOL bResult = ReleaseMutex( hMutex );
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hbwapi_SetLastError( GetLastError() );
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hbwapi_ret_L( bResult );
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}
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else
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hb_retl( HB_FALSE );
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}
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