| // Copyright 2017 The Chromium Authors |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef SERVICES_DEVICE_USB_SCOPED_WINUSB_HANDLE_H_ |
| #define SERVICES_DEVICE_USB_SCOPED_WINUSB_HANDLE_H_ |
| |
| #include "base/win/scoped_handle.h" |
| |
| extern "C" { |
| typedef void* WINUSB_INTERFACE_HANDLE; |
| } |
| |
| namespace device { |
| |
| class WinUsbHandleTraits { |
| public: |
| using Handle = WINUSB_INTERFACE_HANDLE; |
| |
| WinUsbHandleTraits() = delete; |
| WinUsbHandleTraits(const WinUsbHandleTraits&) = delete; |
| WinUsbHandleTraits& operator=(const WinUsbHandleTraits&) = delete; |
| |
| static bool CloseHandle(Handle handle); |
| |
| static bool IsHandleValid(Handle handle) { |
| return handle != nullptr && handle != INVALID_HANDLE_VALUE; |
| } |
| |
| static Handle NullHandle() { return nullptr; } |
| }; |
| |
| using ScopedWinUsbHandle = |
| base::win::GenericScopedHandle<WinUsbHandleTraits, |
| base::win::DummyVerifierTraits>; |
| |
| } // namespace device |
| |
| #endif // SERVICES_DEVICE_USB_SCOPED_WINUSB_HANDLE_H_ |