mirror of
https://github.com/Artikash/Textractor.git
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60 lines
2.3 KiB
C++
60 lines
2.3 KiB
C++
#include "module.h"
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#include <sstream>
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namespace
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{
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char* GetCppExceptionInfo(EXCEPTION_POINTERS* exception)
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{
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// See https://blogs.msdn.microsoft.com/oldnewthing/20100730-00/?p=13273
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// Not very reliable so use __try
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__try { return ((char****)exception->ExceptionRecord->ExceptionInformation[2])[3][1][1] + 8; }
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__except (EXCEPTION_EXECUTE_HANDLER) { return "Could not find"; }
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}
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const char* GetCppExceptionMessage(EXCEPTION_POINTERS* exception)
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{
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__try { return ((std::exception*)exception->ExceptionRecord->ExceptionInformation[1])->what(); }
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__except (EXCEPTION_EXECUTE_HANDLER) { return "Could not find"; }
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}
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thread_local std::wstring lastError = L"Unknown error";
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__declspec(noreturn) void Terminate()
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{
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WaitForSingleObject(CreateThread(nullptr, 0, [](void* lastError) -> DWORD
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{
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MessageBoxW(NULL, (wchar_t*)lastError, L"Textractor ERROR", MB_ICONERROR); // might fail to display if called in main thread and exception was in main event loop
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abort();
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}, lastError.data(), 0, nullptr), INFINITE);
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}
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LONG WINAPI ExceptionLogger(EXCEPTION_POINTERS* exception)
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{
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thread_local static auto _ = set_terminate(Terminate);
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MEMORY_BASIC_INFORMATION info = {};
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VirtualQuery(exception->ExceptionRecord->ExceptionAddress, &info, sizeof(info));
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std::wstringstream errorMsg;
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errorMsg << std::uppercase << std::hex <<
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L"Error code: " << exception->ExceptionRecord->ExceptionCode << std::endl <<
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L"Error address: " << exception->ExceptionRecord->ExceptionAddress << std::endl <<
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L"Error in module: " << GetModuleFilename((HMODULE)info.AllocationBase).value_or(L"Could not find") << std::endl <<
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L"Additional info: " << info.AllocationBase << std::endl;
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if (exception->ExceptionRecord->ExceptionCode == 0xE06D7363)
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{
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if (char* info = GetCppExceptionInfo(exception)) errorMsg << L"Additional info: " << info << std::endl;
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if (const char* info = GetCppExceptionMessage(exception)) errorMsg << L"Additional info: " << info << std::endl;
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}
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for (int i = 0; i < exception->ExceptionRecord->NumberParameters; ++i)
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errorMsg << L"Additional info: " << exception->ExceptionRecord->ExceptionInformation[i] << std::endl;
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lastError = errorMsg.str();
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return EXCEPTION_CONTINUE_SEARCH;
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}
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auto _ = (AddVectoredExceptionHandler(FALSE, ExceptionLogger), SetUnhandledExceptionFilter([](auto) -> LONG { Terminate(); }));
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}
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