winsock_util.h 1010 B

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  1. // Copyright (c) 2011 The Chromium Authors. All rights reserved.
  2. // Use of this source code is governed by a BSD-style license that can be
  3. // found in the LICENSE file.
  4. #ifndef NET_BASE_WINSOCK_UTIL_H_
  5. #define NET_BASE_WINSOCK_UTIL_H_
  6. #include <stddef.h>
  7. #include <winsock2.h>
  8. namespace net {
  9. // Bluetooth address size. Windows Bluetooth is supported via winsock.
  10. static const size_t kBluetoothAddressSize = 6;
  11. // If the (manual-reset) event object is signaled, resets it and returns true.
  12. // Otherwise, does nothing and returns false. Called after a Winsock function
  13. // succeeds synchronously
  14. //
  15. // Our testing shows that except in rare cases (when running inside QEMU),
  16. // the event object is already signaled at this point, so we call this method
  17. // to avoid a context switch in common cases. This is just a performance
  18. // optimization. The code still works if this function simply returns false.
  19. bool ResetEventIfSignaled(WSAEVENT hEvent);
  20. } // namespace net
  21. #endif // NET_BASE_WINSOCK_UTIL_H_