Function RecordExceptionInfo

ddebug/windebug.cpp:328–364

#pragma comment(lib, "DbgHelp.lib")
long WINAPI RecordExceptionInfo(PEXCEPTION_POINTERS data) {
  static bool BeenHere = false;
  if (BeenHere) // Going recursive! That must mean this routine crashed!
    return EXCEPTION_CONTINUE_SEARCH;
  BeenHere = true;

  SetMessageBoxTitle("Unexpected error");

  std::error_code ec;
  const std::filesystem::path dumFilePath = std::filesystem::temp_directory_path(ec) / "d3-crash.dmp";
  if (ec) {
    OutrageMessageBox("Could not find temporary directory to write crash dump file into: %s", ec.message().c_str());
    exit(1);
  }

  HANDLE hDumpFile = CreateFile(dumFilePath.u8string().c_str(), GENERIC_READ | GENERIC_WRITE, 0, nullptr, CREATE_ALWAYS, 0, 0);
  if (hDumpFile == INVALID_HANDLE_VALUE) {
    OutrageMessageBox("Could not create crash dump file, error code: %x", GetLastError());
    exit(1);
  }

  MINIDUMP_EXCEPTION_INFORMATION exceptInfo;
  exceptInfo.ThreadId = GetCurrentThreadId();
  exceptInfo.ExceptionPointers = data;
  exceptInfo.ClientPointers = TRUE;

  if (MiniDumpWriteDump(GetCurrentProcess(), GetCurrentProcessId(), hDumpFile, MiniDumpNormal, &exceptInfo, nullptr, nullptr)) {
    OutrageMessageBox("Crash dump file written to: %s\nYou can attach it to a bug report.", dumFilePath.u8string().c_str());
  } else {
    OutrageMessageBox("Could not write crash dump file, error code: %x", GetLastError());
    exit(1);
  }

  BeenHere = false;

  return Debug_break ? EXCEPTION_CONTINUE_SEARCH : EXCEPTION_EXECUTE_HANDLER;
}