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Diffstat (limited to 'bridges/inc/msvc/except.hxx')
-rw-r--r-- | bridges/inc/msvc/except.hxx | 117 |
1 files changed, 117 insertions, 0 deletions
diff --git a/bridges/inc/msvc/except.hxx b/bridges/inc/msvc/except.hxx new file mode 100644 index 0000000000..f1403a43af --- /dev/null +++ b/bridges/inc/msvc/except.hxx @@ -0,0 +1,117 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/* + * This file is part of the LibreOffice project. + * + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. + * + * This file incorporates work covered by the following license notice: + * + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed + * with this work for additional information regarding copyright + * ownership. The ASF licenses this file to you under the Apache + * License, Version 2.0 (the "License"); you may not use this file + * except in compliance with the License. You may obtain a copy of + * the License at http://www.apache.org/licenses/LICENSE-2.0 . + */ + +#pragma once + +#define WIN32_LEAN_AND_MEAN +#include <windows.h> + +#include <sal/config.h> +#include <rtl/ustrbuf.hxx> +#include <osl/mutex.hxx> + +#include <mutex> +#include <unordered_map> + +typedef struct _uno_Any uno_Any; +typedef struct _uno_Mapping uno_Mapping; + +int msvc_filterCppException(EXCEPTION_POINTERS*, uno_Any*, uno_Mapping*); +void msvc_raiseException(uno_Any*, uno_Mapping*); + +constexpr DWORD MSVC_EH_MAGIC_PARAM = 0x19930520; +// The NT Exception code that msvcrt uses ('msc' | 0xE0000000) +constexpr DWORD MSVC_EH_MAGIC_CODE = 0xE06D7363; + +#if defined(_M_IX86) +#define MSVC_EH_PARAMETERS 3 // Number of parameters in exception record for x86 +#elif defined(_M_AMD64) || defined(_M_ARM64) +#define MSVC_EH_PARAMETERS 4 // Number of parameters in exception record for AMD64 +#else +#error "Unsupported machine type" +#endif + +class type_info; +struct RaiseInfo; +typedef std::unordered_map<OUString, void*> t_string2PtrMap; +typedef struct _typelib_TypeDescription typelib_TypeDescription; + +// fixed class, because sizeof(ExceptionTypeInfo) must be sizeof(type_info) +// this is tested by a static_assert, so can't break. +class ExceptionTypeInfo final +{ + friend int msvc_filterCppException(EXCEPTION_POINTERS*, uno_Any*, uno_Mapping*); + + void* m_data; + char m_d_name[1]; + +public: + explicit ExceptionTypeInfo(void* data, const char* d_name) noexcept + : m_data(data) + { + ::strcpy(m_d_name, d_name); // #100211# - checked + } + virtual ~ExceptionTypeInfo() noexcept; +}; + +class ExceptionTypeInfoWrapper final +{ + int type_info_size; + ExceptionTypeInfo info; + +public: + explicit ExceptionTypeInfoWrapper(void* m_data, const char* m_d_name) noexcept + : info(m_data, m_d_name) + { + type_info_size = sizeof(ExceptionTypeInfo) + strlen(m_d_name); + } + + type_info* get_type_info() { return reinterpret_cast<type_info*>(&info); } + int get_type_info_size() { return type_info_size; } +}; + +class RTTInfos final +{ + osl::Mutex m_aMutex; + t_string2PtrMap m_allRTTI; + + RTTInfos() noexcept; + ExceptionTypeInfoWrapper* getInfo(OUString const& rUNOname) noexcept; + +public: + ~RTTInfos(); + + static type_info* get(OUString const& rUNOname, int* len = nullptr) noexcept; +}; + +class ExceptionInfos final +{ + std::mutex m_aMutex; + t_string2PtrMap m_allRaiseInfos; + +public: + static RaiseInfo* getRaiseInfo(typelib_TypeDescription* pTD) noexcept; + + static DWORD allocationGranularity; + + ExceptionInfos() noexcept; + ~ExceptionInfos() noexcept; +}; + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |