025f540dba
Change-Id: Ia8b406b6a59086160a5167480c6d3bde6574ffbe Reviewed-on: https://gerrit.libreoffice.org/c/core/+/155029 Tested-by: Jenkins Tested-by: Gabor Kelemen <kelemeng@ubuntu.com> Reviewed-by: Gabor Kelemen <kelemeng@ubuntu.com>
140 lines
3.3 KiB
C++
140 lines
3.3 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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#include <sal/config.h>
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#include <stdlib.h>
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#include <signalshared.hxx>
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#include <mutex>
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namespace
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{
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oslSignalHandlerImpl* SignalList;
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bool bInitSignal = false;
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std::mutex& getSignalMutex()
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{
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static std::mutex aMutex;
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return aMutex;
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}
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}
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oslSignalAction callSignalHandler(oslSignalInfo* pInfo)
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{
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oslSignalHandlerImpl* pHandler = SignalList;
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oslSignalAction Action = osl_Signal_ActCallNextHdl;
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while (pHandler)
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{
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if ((Action = pHandler->Handler(pHandler->pData, pInfo)) != osl_Signal_ActCallNextHdl)
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break;
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pHandler = pHandler->pNext;
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}
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return Action;
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}
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oslSignalHandler SAL_CALL osl_addSignalHandler(oslSignalHandlerFunction handler, void* pData)
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{
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if (!handler)
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return nullptr;
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oslSignalHandlerImpl* pHandler
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= static_cast<oslSignalHandlerImpl*>(calloc(1, sizeof(oslSignalHandlerImpl)));
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std::scoped_lock aGuard(getSignalMutex());
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if (!bInitSignal)
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bInitSignal = onInitSignal();
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if (pHandler)
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{
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pHandler->Handler = handler;
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pHandler->pData = pData;
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pHandler->pNext = SignalList;
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SignalList = pHandler;
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return pHandler;
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}
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return nullptr;
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}
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sal_Bool SAL_CALL osl_removeSignalHandler(oslSignalHandler handler)
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{
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std::scoped_lock aGuard(getSignalMutex());
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if (!bInitSignal)
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bInitSignal = onInitSignal();
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oslSignalHandlerImpl* pHandler = SignalList;
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oslSignalHandlerImpl* pPrevious = nullptr;
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while (pHandler)
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{
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if (pHandler == handler)
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{
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if (pPrevious)
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pPrevious->pNext = pHandler->pNext;
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else
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SignalList = pHandler->pNext;
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if (SignalList == nullptr)
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bInitSignal = onDeInitSignal();
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free(pHandler);
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return true;
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}
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pPrevious = pHandler;
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pHandler = pHandler->pNext;
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}
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return false;
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}
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oslSignalAction SAL_CALL osl_raiseSignal(sal_Int32 userSignal, void* userData)
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{
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std::scoped_lock aGuard(getSignalMutex());
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if (!bInitSignal)
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bInitSignal = onInitSignal();
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oslSignalInfo info;
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info.Signal = osl_Signal_User;
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info.UserSignal = userSignal;
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info.UserData = userData;
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oslSignalAction action = callSignalHandler(&info);
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return action;
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}
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sal_Bool SAL_CALL osl_setErrorReporting(sal_Bool /*bEnable*/)
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{
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// this is part of the stable API
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return false;
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}
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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