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Diffstat (limited to 'sal/osl/os2/signal.c')
| -rw-r--r-- | sal/osl/os2/signal.c | 251 |
1 files changed, 251 insertions, 0 deletions
diff --git a/sal/osl/os2/signal.c b/sal/osl/os2/signal.c new file mode 100644 index 000000000000..f21a24e358c2 --- /dev/null +++ b/sal/osl/os2/signal.c @@ -0,0 +1,251 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/************************************************************************* + * + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * Copyright 2000, 2010 Oracle and/or its affiliates. + * + * OpenOffice.org - a multi-platform office productivity suite + * + * This file is part of OpenOffice.org. + * + * OpenOffice.org is free software: you can redistribute it and/or modify + * it under the terms of the GNU Lesser General Public License version 3 + * only, as published by the Free Software Foundation. + * + * OpenOffice.org is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Lesser General Public License version 3 for more details + * (a copy is included in the LICENSE file that accompanied this code). + * + * You should have received a copy of the GNU Lesser General Public License + * version 3 along with OpenOffice.org. If not, see + * <http://www.openoffice.org/license.html> + * for a copy of the LGPLv3 License. + * + ************************************************************************/ + + +/* system headers */ +#include "system.h" + +#include <osl/diagnose.h> +#include <osl/mutex.h> +#include <osl/signal.h> + +typedef struct _oslSignalHandlerImpl +{ + oslSignalHandlerFunction Handler; + void* pData; + struct _oslSignalHandlerImpl* pNext; +} oslSignalHandlerImpl; + +static sal_Bool bErrorReportingEnabled = sal_True; +static sal_Bool bInitSignal = sal_False; +static oslMutex SignalListMutex; +static oslSignalHandlerImpl* SignalList; + +/*static*//* ULONG _Export APIENTRY SignalHandlerFunction(PEXCEPTIONREPORTRECORD pERepRec, + PEXCEPTIONREGISTRATIONRECORD, + PCONTEXTRECORD, PVOID); +*/ +/*static*/ ULONG __declspec(dllexport) APIENTRY SignalHandlerFunction(PEXCEPTIONREPORTRECORD pERepRec, + PEXCEPTIONREGISTRATIONRECORD, + PCONTEXTRECORD, PVOID); +static EXCEPTIONREGISTRATIONRECORD ExcptHandler = { 0, SignalHandlerFunction }; + +static sal_Bool InitSignal( void ) +{ + SignalListMutex = osl_createMutex(); + + ExcptHandler.ExceptionHandler = (_ERR *) &SignalHandlerFunction; + /* DosSetExceptionHandler(&ExcptHandler); */ + + return sal_True; +} + +static sal_Bool DeInitSignal( void ) +{ + /* DosUnsetExceptionHandler(&ExcptHandler); */ + + osl_destroyMutex(SignalListMutex); + + return sal_False; +} + +static oslSignalAction CallSignalHandler(oslSignalInfo *pInfo) +{ + oslSignalHandlerImpl* pHandler = SignalList; + oslSignalAction Action = osl_Signal_ActCallNextHdl; + + while (pHandler != NULL) + { + if ((Action = pHandler->Handler(pHandler->pData, pInfo)) != osl_Signal_ActCallNextHdl) + break; + + pHandler = pHandler->pNext; + } + + return Action; +} + +/*****************************************************************************/ +/* SignalHandlerFunction */ +/*****************************************************************************/ +/*static*/ ULONG __declspec(dllexport) APIENTRY SignalHandlerFunction(PEXCEPTIONREPORTRECORD pERepRec, + PEXCEPTIONREGISTRATIONRECORD pERegRec, + PCONTEXTRECORD pConRec, PVOID pReserved) +{ + oslSignalInfo Info; + + Info.UserSignal = pERepRec->ExceptionNum; + Info.UserData = NULL; + + switch (pERepRec->ExceptionNum) + { + case XCPT_ACCESS_VIOLATION: + Info.Signal = osl_Signal_AccessViolation; + break; + + case XCPT_INTEGER_DIVIDE_BY_ZERO: + Info.Signal = osl_Signal_IntegerDivideByZero; + break; + + case XCPT_BREAKPOINT: + Info.Signal = osl_Signal_DebugBreak; + break; + + default: + Info.Signal = osl_Signal_System; + break; + } + + switch (CallSignalHandler(&Info)) + { + case osl_Signal_ActCallNextHdl: + return (XCPT_CONTINUE_SEARCH); + + case osl_Signal_ActAbortApp: + return (XCPT_CONTINUE_SEARCH); + + case osl_Signal_ActKillApp: + exit(255); + break; + } + + return (XCPT_CONTINUE_SEARCH); +} + +/*****************************************************************************/ +/* osl_addSignalHandler */ +/*****************************************************************************/ +oslSignalHandler SAL_CALL osl_addSignalHandler(oslSignalHandlerFunction Handler, void* pData) +{ + oslSignalHandlerImpl* pHandler; + + OSL_ASSERT(Handler != NULL); + + if (! bInitSignal) + bInitSignal = InitSignal(); + + pHandler = (oslSignalHandlerImpl*) calloc(1, sizeof(oslSignalHandlerImpl)); + + if (pHandler != NULL) + { + pHandler->Handler = Handler; + pHandler->pData = pData; + + osl_acquireMutex(SignalListMutex); + + pHandler->pNext = SignalList; + SignalList = pHandler; + + osl_releaseMutex(SignalListMutex); + + return (pHandler); + } + + return (NULL); +} + +/*****************************************************************************/ +/* osl_removeSignalHandler */ +/*****************************************************************************/ +sal_Bool SAL_CALL osl_removeSignalHandler(oslSignalHandler Handler) +{ + oslSignalHandlerImpl *pHandler, *pPrevious = NULL; + + OSL_ASSERT(Handler != NULL); + + if (! bInitSignal) + bInitSignal = InitSignal(); + + osl_acquireMutex(SignalListMutex); + + pHandler = SignalList; + + while (pHandler != NULL) + { + if (pHandler == Handler) + { + if (pPrevious) + pPrevious->pNext = pHandler->pNext; + else + SignalList = pHandler->pNext; + + osl_releaseMutex(SignalListMutex); + + if (SignalList == NULL ) + bInitSignal = DeInitSignal(); + + free(pHandler); + + return (sal_True); + } + + pPrevious = pHandler; + pHandler = pHandler->pNext; + } + + osl_releaseMutex(SignalListMutex); + + return (sal_False); +} + +/*****************************************************************************/ +/* osl_raiseSignal */ +/*****************************************************************************/ +oslSignalAction SAL_CALL osl_raiseSignal(sal_Int32 UserSignal, void* UserData) +{ + oslSignalInfo Info; + oslSignalAction Action; + + if (! bInitSignal) + bInitSignal = InitSignal(); + + osl_acquireMutex(SignalListMutex); + + Info.Signal = osl_Signal_User; + Info.UserSignal = UserSignal; + Info.UserData = UserData; + + Action = CallSignalHandler(&Info); + + osl_releaseMutex(SignalListMutex); + + return (Action); +} + +/*****************************************************************************/ +/* osl_setErrorReporting */ +/*****************************************************************************/ +sal_Bool SAL_CALL osl_setErrorReporting( sal_Bool bEnable ) +{ + sal_Bool bOld = bErrorReportingEnabled; + bErrorReportingEnabled = bEnable; + + return bOld; +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |