250 lines
6.7 KiB
C
250 lines
6.7 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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* Debug to separate console string output
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*
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* Copyright 2003 Giancarlo Niccolai <gian@niccolai.ws>
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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. 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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/* JC1: Caution. This code is NOT multithreaded as it is meant
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to be managed from the main thread. Every thread may use it,
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but only the main thread should be allowed to activate the
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debug window.
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*/
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#include "hbapi.h"
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#include "hbapiitm.h"
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#include "hbapifs.h"
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#include "xhb.h"
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#if defined( HB_OS_WIN )
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#include <windows.h>
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#include "hbwinuni.h"
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#endif
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#if defined( HB_OS_UNIX ) && !defined( HB_OS_VXWORKS )
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#include <errno.h>
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#include <unistd.h>
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#include <sys/time.h>
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#include <sys/types.h>
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#include <sys/wait.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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static int s_iDebugFd = 0;
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static char s_szDebugName[ 128 ];
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static int s_iUseDebugName = 0;
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static int s_iXtermPid = 0;
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static void debugInit( void )
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{
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int iPid, iFifoResult;
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char szDebugTitle[ 30 ];
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PHB_FNAME pFileName = NULL;
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char szDebugName[ 128 ];
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if( ! s_iUseDebugName )
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{
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int iRand = ( int ) ( hb_random_num() * 1000000 );
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pFileName = hb_fsFNameSplit( hb_cmdargARGVN( 0 ) );
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hb_snprintf( szDebugName, sizeof( szDebugName ) - 1, "/tmp/%s%d_dbg", pFileName->szName, iRand );
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}
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else
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{
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hb_snprintf( szDebugName, sizeof( szDebugName ), "/tmp/%s_dbg", s_szDebugName );
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pFileName = hb_fsFNameSplit( szDebugName );
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}
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iFifoResult = mkfifo( szDebugName, 0666 );
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if( iFifoResult == -1 )
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iFifoResult = errno;
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if( iFifoResult == 0 || iFifoResult == EEXIST )
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{
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hb_snprintf( szDebugTitle, sizeof( szDebugTitle ), "%s - Debug", pFileName->szName );
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iPid = fork();
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if( iPid != 0 )
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{
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s_iDebugFd = open( szDebugName, O_WRONLY );
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s_iXtermPid = iPid;
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}
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else
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{
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if( iFifoResult != EEXIST )
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{
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s_iXtermPid = execlp( "xterm", "xterm", "-T", szDebugTitle, "-e",
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"cat", szDebugName, ( char * ) NULL );
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if( s_iXtermPid <= 0 )
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{
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int lastresort = open( szDebugName, O_RDONLY );
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if( lastresort >= 0 )
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close( lastresort );
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}
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}
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}
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}
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hb_xfree( pFileName );
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}
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#endif
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HB_BOOL hb_OutDebugName( PHB_ITEM pName )
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{
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HB_BOOL bRet;
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#if defined( HB_OS_UNIX ) && !defined( HB_OS_VXWORKS )
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if( s_iDebugFd == 0 && pName != NULL)
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{
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hb_strncpy( s_szDebugName, hb_itemGetCPtr( pName ), sizeof( s_szDebugName ) - 1 );
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s_iUseDebugName = 1;
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bRet = HB_TRUE;
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}
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else if( pName == NULL)
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{
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s_iUseDebugName = 0;
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bRet = HB_TRUE;
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}
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else
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bRet = HB_FALSE;
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#else
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HB_SYMBOL_UNUSED( pName );
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bRet = HB_FALSE;
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#endif
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return bRet;
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}
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void hb_OutDebug( const char * szMsg, HB_SIZE nMsgLen )
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{
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#if defined( HB_OS_UNIX ) && !defined( HB_OS_VXWORKS )
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int iStatus, iPid;
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/* Are we under X? */
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if( getenv( "DISPLAY" ) != NULL )
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{
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if( s_iDebugFd <= 0 || s_iXtermPid == 0 )
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debugInit();
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/* On error, drop it */
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if( s_iDebugFd <= 0 || s_iXtermPid == 0 )
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return;
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/* Chech if display process has terminated in the meanwhile */
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if( ! s_iUseDebugName )
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{
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iPid = waitpid( s_iXtermPid, &iStatus, WNOHANG );
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if( iPid == s_iXtermPid || iPid == -1 )
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{
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s_iXtermPid = 0;
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/* close( s_iDebugFd ); */
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s_iDebugFd = 0;
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return;
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}
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}
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if( s_iDebugFd > 0 && HB_ISCHAR( 1 ) )
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{
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fd_set wrds;
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struct timeval tv = { 0, 100000 }; /* wait each time a tenth of second */
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FD_ZERO( &wrds );
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FD_SET( s_iDebugFd, &wrds );
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if( select( s_iDebugFd + 1, NULL, &wrds, NULL, &tv ) > 0 )
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{
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if( ( HB_SIZE ) write( s_iDebugFd, szMsg, nMsgLen ) == nMsgLen )
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{
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tv.tv_sec = 0;
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tv.tv_usec = 100000;
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FD_ZERO( &wrds );
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FD_SET( s_iDebugFd, &wrds );
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if( select( s_iDebugFd + 1, NULL, &wrds, NULL, &tv ) > 0 )
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{
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if( write( s_iDebugFd, "\n", 1 ) != 1 ) {}
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}
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}
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}
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}
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}
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#elif defined( HB_OS_WIN )
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{
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LPTSTR lpMsg = HB_CHARDUPN( szMsg, nMsgLen );
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OutputDebugString( lpMsg );
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hb_xfree( lpMsg );
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}
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#else
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HB_SYMBOL_UNUSED( szMsg );
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HB_SYMBOL_UNUSED( nMsgLen );
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#endif
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}
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HB_FUNC( HB_OUTDEBUGNAME )
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{
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PHB_ITEM pName = hb_param( 1, HB_IT_STRING );
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hb_retl( hb_OutDebugName( pName ) );
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}
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HB_FUNC( HB_OUTDEBUG )
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{
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if( HB_ISCHAR( 1 ) )
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hb_OutDebug( hb_parcx( 1 ), hb_parclen( 1 ) );
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}
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