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