//------------------------------- // Manager of signals for windows // static LONG s_signalHandler( int type, int sig, PEXCEPTION_RECORD exc ) { PHB_ITEM pFunction, pExecArray, pRet; ULONG ulPos; UINT uiSig, uiMask; int iRet; // let's find the right signal handler. HB_CRITICAL_LOCK( s_ServiceMutex ); // avoid working if PRG signal handling has been disabled if ( ! bSignalEnabled ) { HB_CRITICAL_UNLOCK( s_ServiceMutex ); return EXCEPTION_EXECUTE_HANDLER; } bSignalEnabled = FALSE; ulPos = hb_arrayLen( sp_hooks ); // subsig not necessary uiSig = (UINT) s_translateSignal( (UINT)type, (UINT)sig ); while( ulPos > 0 ) { pFunction = hb_arrayGetItemPtr( sp_hooks, ulPos ); uiMask = (UINT) hb_arrayGetNI( pFunction, 1 ); if ( (uiMask & uiSig) == uiSig ) { // we don't unlock the mutex now, even if it is // a little dangerous. But we are in a signal hander... // for now just 2 parameters pExecArray = hb_itemArrayNew( 3 ); hb_arraySetForward( pExecArray, 1, hb_arrayGetItemPtr( pFunction, 2 ) ); hb_arraySetNI( pExecArray, 2, uiSig ); /* the third parameter is an array: * 1: low-level signal * 2: low-level subsignal * 3: low-level system error * 4: address that rised the signal * 5: process id of the signal riser * 6: UID of the riser */ pRet = hb_arrayGetItemPtr( pExecArray, 3); hb_arrayNew( pRet, 6 ); hb_arraySetNI( pRet, HB_SERVICE_OSSIGNAL, type ); hb_arraySetNI( pRet, HB_SERVICE_OSSUBSIG, sig ); //could be meaningless, but does not matter here hb_arraySetNI( pRet, HB_SERVICE_OSERROR, GetLastError() ); if (type == 0 ) //exception { hb_arraySetPtr( pRet, HB_SERVICE_ADDRESS, ( void * ) exc->ExceptionAddress ); } else { hb_arraySetPtr( pRet, HB_SERVICE_ADDRESS, NULL ); } //TODO: hb_arraySetNI( pRet, HB_SERVICE_PROCESS, GetCurrentThreadId() ); //TODO: hb_arraySetNI( pRet, HB_SERVICE_UID, 0 ); pRet = hb_itemDo( pExecArray, 0 ); iRet = hb_itemGetNI( pRet ); hb_itemRelease( pRet ); hb_itemRelease( pExecArray ); switch( iRet ) { case HB_SERVICE_HANDLED: bSignalEnabled = TRUE; HB_CRITICAL_UNLOCK( s_ServiceMutex ); return EXCEPTION_CONTINUE_EXECUTION; case HB_SERVICE_QUIT: bSignalEnabled = FALSE; HB_CRITICAL_UNLOCK( s_ServiceMutex ); hb_vmRequestQuit(); #ifndef HB_THREAD_SUPPORT hb_vmQuit(); exit(0); #else hb_threadCancelInternal(); #endif } } ulPos--; } bSignalEnabled = TRUE; return EXCEPTION_EXECUTE_HANDLER; }
static void s_signalHandler( int sig, siginfo_t *info, void *v ) #endif { UINT uiMask; UINT uiSig; PHB_ITEM pFunction, pExecArray, pRet; ULONG ulPos; int iRet; #if !( defined( HB_OS_OS2_GCC ) || defined( __WATCOMC__ ) ) HB_SYMBOL_UNUSED(v); #endif // let's find the right signal handler. HB_CRITICAL_LOCK( s_ServiceMutex ); // avoid working if PRG signal handling has been disabled if ( ! bSignalEnabled ) { HB_CRITICAL_UNLOCK( s_ServiceMutex ); return; } bSignalEnabled = FALSE; ulPos = hb_arrayLen( sp_hooks ); // subsig not necessary uiSig = (UINT) s_translateSignal( (UINT)sig, 0 ); while( ulPos > 0 ) { pFunction = hb_arrayGetItemPtr( sp_hooks, ulPos ); uiMask = (UINT) hb_arrayGetNI( pFunction, 1 ); if ( uiMask & uiSig) { // we don't unlock the mutex now, even if it is // a little dangerous. But we are in a signal hander... // for now just 2 parameters pExecArray = hb_itemArrayNew( 3 ); hb_arraySet( pExecArray, 1, hb_arrayGetItemPtr( pFunction, 2 ) ); hb_arraySetNI( pExecArray, 2, uiSig ); // the third parameter is an array: pRet = hb_arrayGetItemPtr( pExecArray, 3); #if defined( HB_OS_OS2_GCC ) || defined( __WATCOMC__ ) hb_arrayNew( pRet, 1 ); #elif defined( HB_OS_BSD ) hb_arrayNew( pRet, info ? 6 : 1 ); #else hb_arrayNew( pRet, 6 ); #endif hb_arraySetNI( pRet, HB_SERVICE_OSSIGNAL, sig ); #if !( defined( HB_OS_OS2_GCC ) || defined( __WATCOMC__ ) ) #if defined( HB_OS_BSD ) if (info) #endif { hb_arraySetNI( pRet, HB_SERVICE_OSSUBSIG, info->si_code ); hb_arraySetNI( pRet, HB_SERVICE_OSERROR, info->si_errno ); hb_arraySetPtr( pRet, HB_SERVICE_ADDRESS, (void *) info->si_addr ); hb_arraySetNI( pRet, HB_SERVICE_PROCESS, info->si_pid ); hb_arraySetNI( pRet, HB_SERVICE_UID, info->si_uid ); } #endif pRet = hb_itemDo( pExecArray, 0 ); iRet = hb_itemGetNI( pRet ); hb_itemRelease( pRet ); hb_itemRelease( pExecArray ); switch( iRet ) { case HB_SERVICE_HANDLED: bSignalEnabled = TRUE; HB_CRITICAL_UNLOCK( s_ServiceMutex ); return; case HB_SERVICE_QUIT: bSignalEnabled = FALSE; HB_CRITICAL_UNLOCK( s_ServiceMutex ); //TODO: A service cleanup routine hb_vmRequestQuit(); #ifndef HB_THREAD_SUPPORT hb_vmQuit(); exit(0); #else /* Allow signals to go through pthreads */ s_serviceSetDflSig(); /* NOTICE: should be pthread_exit(0), but a bug in linuxthread prevents it: calling pthread exit from a signal handler will cause infinite wait for restart signal. This solution is rude, while the other would allow clean VM termination... but it works. */ exit(0); #endif } } ulPos--; } bSignalEnabled = TRUE; /*s_serviceSetHBSig();*/ /* TODO if ( uiSig != HB_SIGNAL_UNKNOWN ) { if ( sa_oldAction[ sig ].sa_flags & SA_SIGINFO ) { sa_oldAction[ sig ].sa_sigaction( sig, info, v ); } else { sa_oldAction[ sig ].sa_handler( sig ); } }*/ }
/* Manager of signals for windows */ static LONG s_signalHandler( int type, int sig, PEXCEPTION_RECORD exc ) { HB_SIZE nPos; HB_UINT uiSig; /* let's find the right signal handler. */ hb_threadEnterCriticalSectionGC( &s_ServiceMutex ); /* avoid working if PRG signal handling has been disabled */ if( ! s_bSignalEnabled ) { hb_threadLeaveCriticalSection( &s_ServiceMutex ); return EXCEPTION_EXECUTE_HANDLER; } s_bSignalEnabled = HB_FALSE; nPos = hb_arrayLen( s_pHooks ); /* subsig not necessary */ uiSig = ( HB_UINT ) s_translateSignal( ( HB_UINT ) type, ( HB_UINT ) sig ); while( nPos > 0 ) { PHB_ITEM pFunction; HB_UINT uiMask; pFunction = hb_arrayGetItemPtr( s_pHooks, nPos ); uiMask = ( HB_UINT ) hb_arrayGetNI( pFunction, 1 ); if( ( uiMask & uiSig ) == uiSig ) { PHB_ITEM pExecArray, pRet; int iRet; /* we don't unlock the mutex now, even if it is a little dangerous. But we are in a signal hander... for now just 2 parameters */ pExecArray = hb_itemArrayNew( 3 ); hb_arraySetForward( pExecArray, 1, hb_arrayGetItemPtr( pFunction, 2 ) ); hb_arraySetNI( pExecArray, 2, uiSig ); /* the third parameter is an array: * 1: low-level signal * 2: low-level subsignal * 3: low-level system error * 4: address that rose the signal * 5: process id of the signal riser * 6: UID of the riser */ pRet = hb_arrayGetItemPtr( pExecArray, 3 ); hb_arrayNew( pRet, 6 ); hb_arraySetNI( pRet, HB_SERVICE_OSSIGNAL, type ); hb_arraySetNI( pRet, HB_SERVICE_OSSUBSIG, sig ); /* could be meaningless, but does not matter here */ hb_arraySetNI( pRet, HB_SERVICE_OSERROR, GetLastError() ); if( type == 0 ) /* exception */ hb_arraySetPtr( pRet, HB_SERVICE_ADDRESS, ( void * ) exc->ExceptionAddress ); else hb_arraySetPtr( pRet, HB_SERVICE_ADDRESS, NULL ); /* TODO: */ hb_arraySetNI( pRet, HB_SERVICE_PROCESS, GetCurrentThreadId() ); /* TODO: */ hb_arraySetNI( pRet, HB_SERVICE_UID, 0 ); pRet = hb_itemDo( pExecArray, 0 ); iRet = hb_itemGetNI( pRet ); hb_itemRelease( pRet ); hb_itemRelease( pExecArray ); switch( iRet ) { case HB_SERVICE_HANDLED: s_bSignalEnabled = HB_TRUE; hb_threadLeaveCriticalSection( &s_ServiceMutex ); return EXCEPTION_CONTINUE_EXECUTION; case HB_SERVICE_QUIT: s_bSignalEnabled = HB_FALSE; hb_threadLeaveCriticalSection( &s_ServiceMutex ); hb_vmRequestQuit(); #ifndef HB_THREAD_SUPPORT hb_vmQuit(); exit( 0 ); #else hb_threadCancelInternal(); #endif } } nPos--; } s_bSignalEnabled = HB_TRUE; return EXCEPTION_EXECUTE_HANDLER; }
/* Harbour default math error handling routine */ static int hb_matherr( HB_MATH_EXCEPTION * pexc ) { int mode = hb_mathGetErrMode(); int iRet = 1; HB_TRACE( HB_TR_DEBUG, ( "hb_matherr(%p)", ( void * ) pexc ) ); if( pexc == NULL || pexc->handled != 0 ) { /* error already handled by other handlers ! */ return 1; } if( mode == HB_MATH_ERRMODE_USER || mode == HB_MATH_ERRMODE_USERDEFAULT || mode == HB_MATH_ERRMODE_USERCDEFAULT ) { PHB_ITEM pArg1, pArg2, pError; PHB_ITEM pMatherrResult; /* create an error object */ /* NOTE: In case of HB_MATH_ERRMODE_USER[C]DEFAULT, I am setting both EF_CANSUBSTITUTE and EF_CANDEFAULT to .T. here. This is forbidden according to the original Cl*pper docs, but I think this reflects the situation best here: The error handler can either substitute the erroneous value (by returning a numeric value) or choose the default error handling (by returning .F., as usual) [martin vogel] */ pError = hb_errRT_New_Subst( ES_ERROR, "MATH", EG_NUMERR, pexc->type, pexc->error, pexc->funcname, 0, EF_CANSUBSTITUTE | ( mode == HB_MATH_ERRMODE_USER ? 0 : EF_CANDEFAULT ) ); /* Assign the new array to the object data item. */ /* NOTE: Unfortunately, we cannot decide whether one or two parameters have been used when the math function has been called, so we always take two */ pArg1 = hb_itemPutND( NULL, pexc->arg1 ); pArg2 = hb_itemPutND( NULL, pexc->arg2 ); hb_errPutArgs( pError, 2, pArg1, pArg2 ); hb_itemRelease( pArg1 ); hb_itemRelease( pArg2 ); /* launch error codeblock */ pMatherrResult = hb_errLaunchSubst( pError ); hb_errRelease( pError ); if( pMatherrResult ) { if( HB_IS_NUMERIC( pMatherrResult ) ) { pexc->retval = hb_itemGetND( pMatherrResult ); hb_itemGetNLen( pMatherrResult, &pexc->retvalwidth, &pexc->retvaldec ); pexc->handled = 1; } hb_itemRelease( pMatherrResult ); } } /* math exception not handled by Harbour error routine above ? */ if( pexc->handled == 0 ) { switch( mode ) { case HB_MATH_ERRMODE_USER: /* user failed to handle the math exception, so quit the app [yes, that's the meaning of this mode !!] */ iRet = 0; hb_vmRequestQuit(); break; case HB_MATH_ERRMODE_DEFAULT: case HB_MATH_ERRMODE_USERDEFAULT: /* return 1 to suppress C RTL error msgs, but leave error handling to the calling Harbour routine */ break; case HB_MATH_ERRMODE_CDEFAULT: case HB_MATH_ERRMODE_USERCDEFAULT: /* use the correction value supplied in pexc->retval */ pexc->handled = 1; break; } } return iRet; /* error handling successful */ }
static void s_signalHandler( int sig, siginfo_t * info, void * v ) #endif { HB_UINT uiSig; HB_SIZE nPos; #if ! ( defined( HB_OS_OS2_GCC ) || defined( __WATCOMC__ ) ) HB_SYMBOL_UNUSED( v ); #endif /* let's find the right signal handler. */ hb_threadEnterCriticalSectionGC( &s_ServiceMutex ); /* avoid working if PRG signal handling has been disabled */ if( ! s_bSignalEnabled ) { hb_threadLeaveCriticalSection( &s_ServiceMutex ); return; } s_bSignalEnabled = HB_FALSE; nPos = hb_arrayLen( s_pHooks ); /* subsig not necessary */ uiSig = ( HB_UINT ) s_translateSignal( ( HB_UINT ) sig, 0 ); while( nPos > 0 ) { PHB_ITEM pFunction; HB_UINT uiMask; pFunction = hb_arrayGetItemPtr( s_pHooks, nPos ); uiMask = ( HB_UINT ) hb_arrayGetNI( pFunction, 1 ); if( uiMask & uiSig ) { PHB_ITEM pExecArray, pRet; int iRet; /* we don't unlock the mutex now, even if it is a little dangerous. But we are in a signal hander... for now just 2 parameters */ pExecArray = hb_itemArrayNew( 3 ); hb_arraySet( pExecArray, 1, hb_arrayGetItemPtr( pFunction, 2 ) ); hb_arraySetNI( pExecArray, 2, uiSig ); /* the third parameter is an array: */ pRet = hb_arrayGetItemPtr( pExecArray, 3 ); #if defined( HB_OS_OS2_GCC ) || defined( __WATCOMC__ ) hb_arrayNew( pRet, 1 ); #elif defined( HB_OS_BSD ) hb_arrayNew( pRet, info ? 6 : 1 ); #else hb_arrayNew( pRet, 6 ); #endif hb_arraySetNI( pRet, HB_SERVICE_OSSIGNAL, sig ); #if ! ( defined( HB_OS_OS2_GCC ) || defined( __WATCOMC__ ) ) #if defined( HB_OS_BSD ) if( info ) #endif { hb_arraySetNI( pRet, HB_SERVICE_OSSUBSIG, info->si_code ); #if ! defined( HB_OS_VXWORKS ) hb_arraySetNI( pRet, HB_SERVICE_OSERROR, info->si_errno ); hb_arraySetPtr( pRet, HB_SERVICE_ADDRESS, ( void * ) info->si_addr ); hb_arraySetNI( pRet, HB_SERVICE_PROCESS, info->si_pid ); hb_arraySetNI( pRet, HB_SERVICE_UID, info->si_uid ); #endif } #endif pRet = hb_itemDo( pExecArray, 0 ); iRet = hb_itemGetNI( pRet ); hb_itemRelease( pRet ); hb_itemRelease( pExecArray ); switch( iRet ) { case HB_SERVICE_HANDLED: s_bSignalEnabled = HB_TRUE; hb_threadLeaveCriticalSection( &s_ServiceMutex ); return; case HB_SERVICE_QUIT: s_bSignalEnabled = HB_FALSE; hb_threadLeaveCriticalSection( &s_ServiceMutex ); /* TODO: A service cleanup routine */ hb_vmRequestQuit(); /* Allow signals to go through pthreads */ s_serviceSetDflSig(); /* NOTICE: should be pthread_exit(0), but a bug in Linux threading prevents it: calling pthread exit from a signal handler will cause infinite wait for restart signal. This solution is rude, while the other would allow clean VM termination... but it works. */ exit( 0 ); } } nPos--; } s_bSignalEnabled = HB_TRUE; #if 0 s_serviceSetHBSig(); #endif #if 0 if( uiSig != HB_SIGNAL_UNKNOWN ) { if( s_aOldAction[ sig ].sa_flags & SA_SIGINFO ) s_aOldAction[ sig ].sa_sigaction( sig, info, v ); else s_aOldAction[ sig ].sa_handler( sig ); } #endif }