Function WriteMinidumpAndCallstack

common/CrashHandler.cpp:100–143

}

static void WriteMinidumpAndCallstack(PEXCEPTION_POINTERS exi)
{
	s_in_crash_handler = true;

	wchar_t filename[1024] = {};
	GenerateCrashFilename(filename, std::size(filename), s_write_directory.empty() ? nullptr : s_write_directory.c_str(), L"txt");

	// might fail
	HANDLE hFile = CreateFileW(filename, GENERIC_WRITE, 0, nullptr, CREATE_ALWAYS, 0, nullptr);
	if (exi && hFile != INVALID_HANDLE_VALUE)
	{
		char line[1024];
		DWORD written;
		std::snprintf(line, std::size(line), "Exception 0x%08X at 0x%p\n", static_cast<unsigned>(exi->ExceptionRecord->ExceptionCode),
			exi->ExceptionRecord->ExceptionAddress);
		WriteFile(hFile, line, static_cast<DWORD>(std::strlen(line)), &written, nullptr);
	}

	GenerateCrashFilename(filename, std::size(filename), s_write_directory.empty() ? nullptr : s_write_directory.c_str(), L"dmp");

	const MINIDUMP_TYPE minidump_type =
		static_cast<MINIDUMP_TYPE>(MiniDumpNormal | MiniDumpWithHandleData | MiniDumpWithProcessThreadData |
								   MiniDumpWithThreadInfo | MiniDumpWithIndirectlyReferencedMemory);
	const HANDLE hMinidumpFile = CreateFileW(filename, GENERIC_WRITE, 0, nullptr, CREATE_ALWAYS, 0, nullptr);
	if (hMinidumpFile == INVALID_HANDLE_VALUE ||
		!WriteMinidump(static_cast<HMODULE>(s_dbghelp_module.GetHandle()), hMinidumpFile, GetCurrentProcess(), GetCurrentProcessId(),
			GetCurrentThreadId(), exi, minidump_type))
	{
		static const char error_message[] = "Failed to write minidump file.\n";
		if (hFile != INVALID_HANDLE_VALUE)
		{
			DWORD written;
			WriteFile(hFile, error_message, sizeof(error_message) - 1, &written, nullptr);
		}
	}
	if (hMinidumpFile != INVALID_HANDLE_VALUE)
		CloseHandle(hMinidumpFile);

	CrashHandlerStackWalker sw(hFile);
	sw.ShowCallstack(GetCurrentThread(), exi ? exi->ContextRecord : nullptr);

	if (hFile != INVALID_HANDLE_VALUE)
		CloseHandle(hFile);
}

static LONG NTAPI ExceptionHandler(PEXCEPTION_POINTERS exi)
{