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 5 #ifndef NET_BASE_WINSOCK_UTIL_H_ 6 #define NET_BASE_WINSOCK_UTIL_H_ 7 8 #include <stddef.h> 9 #include <winsock2.h> 10 11 namespace net { 12 13 // Bluetooth address size. Windows Bluetooth is supported via winsock. 14 static const size_t kBluetoothAddressSize = 6; 15 16 // Assert that the (manual-reset) event object is not signaled. 17 void AssertEventNotSignaled(WSAEVENT hEvent); 18 19 // If the (manual-reset) event object is signaled, resets it and returns true. 20 // Otherwise, does nothing and returns false. Called after a Winsock function 21 // succeeds synchronously 22 // 23 // Our testing shows that except in rare cases (when running inside QEMU), 24 // the event object is already signaled at this point, so we call this method 25 // to avoid a context switch in common cases. This is just a performance 26 // optimization. The code still works if this function simply returns false. 27 bool ResetEventIfSignaled(WSAEVENT hEvent); 28 29 } // namespace net 30 31 #endif // NET_BASE_WINSOCK_UTIL_H_ 32