LibreOffice Module bridges (master)  1
msvc/except.hxx
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1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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8  *
9  * This file incorporates work covered by the following license notice:
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11  * Licensed to the Apache Software Foundation (ASF) under one or more
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15  * License, Version 2.0 (the "License"); you may not use this file
16  * except in compliance with the License. You may obtain a copy of
17  * the License at http://www.apache.org/licenses/LICENSE-2.0 .
18  */
19 
20 #pragma once
21 
22 #define WIN32_LEAN_AND_MEAN
23 #include <windows.h>
24 
25 #include <sal/config.h>
26 #include <rtl/ustrbuf.hxx>
27 #include <osl/mutex.hxx>
28 
29 #include <unordered_map>
30 
31 typedef struct _uno_Any uno_Any;
32 typedef struct _uno_Mapping uno_Mapping;
33 
34 int msvc_filterCppException(EXCEPTION_POINTERS*, uno_Any*, uno_Mapping*);
36 
37 constexpr DWORD MSVC_EH_MAGIC_PARAM = 0x19930520;
38 // The NT Exception code that msvcrt uses ('msc' | 0xE0000000)
39 constexpr DWORD MSVC_EH_MAGIC_CODE = 0xE06D7363;
40 
41 #if defined(_M_IX86)
42 #define MSVC_EH_PARAMETERS 3 // Number of parameters in exception record for x86
43 #elif defined(_M_AMD64) || defined(_M_ARM64)
44 #define MSVC_EH_PARAMETERS 4 // Number of parameters in exception record for AMD64
45 #else
46 #error "Unsupported machine type"
47 #endif
48 
49 class type_info;
50 struct RaiseInfo;
51 typedef std::unordered_map<OUString, void*> t_string2PtrMap;
52 typedef struct _typelib_TypeDescription typelib_TypeDescription;
53 
54 // fixed class, because sizeof(ExceptionTypeInfo) must be sizeof(type_info)
55 // this is tested by a static_assert, so can't break.
56 class ExceptionTypeInfo final
57 {
58  friend int msvc_filterCppException(EXCEPTION_POINTERS*, uno_Any*, uno_Mapping*);
59 
60  void* m_data;
61  char m_d_name[1];
62 
63 public:
64  explicit ExceptionTypeInfo(void* data, const char* d_name) noexcept
65  : m_data(data)
66  {
67  ::strcpy(m_d_name, d_name); // #100211# - checked
68  }
69  virtual ~ExceptionTypeInfo() noexcept;
70 };
71 
73 {
76 
77 public:
78  explicit ExceptionTypeInfoWrapper(void* m_data, const char* m_d_name) noexcept
79  : info(m_data, m_d_name)
80  {
81  type_info_size = sizeof(ExceptionTypeInfo) + strlen(m_d_name);
82  }
83 
84  type_info* get_type_info() { return reinterpret_cast<type_info*>(&info); }
85  int get_type_info_size() { return type_info_size; }
86 };
87 
88 class RTTInfos final
89 {
90  osl::Mutex m_aMutex;
92 
93  RTTInfos() noexcept;
94  ExceptionTypeInfoWrapper* getInfo(OUString const& rUNOname) noexcept;
95 
96 public:
97  ~RTTInfos();
98 
99  static type_info* get(OUString const& rUNOname, int* len = nullptr) noexcept;
100 };
101 
102 class ExceptionInfos final
103 {
104  osl::Mutex m_aMutex;
106 
107 public:
108  static RaiseInfo* getRaiseInfo(typelib_TypeDescription* pTD) noexcept;
109 
110  static DWORD allocationGranularity;
111 
112  ExceptionInfos() noexcept;
113  ~ExceptionInfos() noexcept;
114 };
115 
116 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
static DWORD allocationGranularity
type_info * get_type_info()
Definition: msvc/except.hxx:84
struct _uno_Mapping uno_Mapping
Definition: msvc/except.hxx:32
ExceptionTypeInfo(void *data, const char *d_name) noexcept
Definition: msvc/except.hxx:64
ExceptionTypeInfo info
Definition: msvc/except.hxx:75
t_string2PtrMap m_allRTTI
Definition: msvc/except.hxx:91
struct _uno_Any uno_Any
Definition: msvc/except.hxx:31
osl::Mutex m_aMutex
Definition: msvc/except.hxx:90
friend int msvc_filterCppException(EXCEPTION_POINTERS *, uno_Any *, uno_Mapping *)
virtual ~ExceptionTypeInfo() noexcept
constexpr DWORD MSVC_EH_MAGIC_CODE
Definition: msvc/except.hxx:39
struct _typelib_TypeDescription typelib_TypeDescription
Definition: msvc/except.hxx:52
osl::Mutex m_aMutex
t_string2PtrMap m_allRaiseInfos
ExceptionTypeInfoWrapper(void *m_data, const char *m_d_name) noexcept
Definition: msvc/except.hxx:78
int msvc_filterCppException(EXCEPTION_POINTERS *, uno_Any *, uno_Mapping *)
void msvc_raiseException(uno_Any *, uno_Mapping *)
constexpr DWORD MSVC_EH_MAGIC_PARAM
Definition: msvc/except.hxx:37
std::unordered_map< OUString, void * > t_string2PtrMap
Definition: msvc/except.hxx:50