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1 // Copyright (c) 2012 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 // This is an interface for all objects that want to be notified that | |
6 // the underlying UDP socket is available for writing (not write blocked | |
7 // anymore). | |
8 | |
9 #ifndef NET_QUIC_QUIC_BLOCKED_WRITER_INTERFACE_H_ | |
10 #define NET_QUIC_QUIC_BLOCKED_WRITER_INTERFACE_H_ | |
11 | |
12 #include "net/base/net_export.h" | |
13 | |
14 namespace net { | |
15 | |
16 class NET_EXPORT_PRIVATE QuicBlockedWriterInterface { | |
17 public: | |
18 virtual ~QuicBlockedWriterInterface() {} | |
19 | |
20 // Called by the PacketWriter when the underlying socket becomes writable | |
21 // so that the BlockedWriter can go ahead and try writing. | |
22 virtual void OnCanWrite() = 0; | |
23 }; | |
24 | |
25 } // namespace net | |
26 | |
27 #if defined(COMPILER_GCC) | |
28 namespace BASE_HASH_NAMESPACE { | |
29 // Hash pointers as if they were int's, but bring more entropy to the lower | |
30 // bits. | |
31 template <> | |
32 struct hash<net::QuicBlockedWriterInterface*> { | |
33 std::size_t operator()(const net::QuicBlockedWriterInterface* ptr) const { | |
34 size_t k = reinterpret_cast<size_t>(ptr); | |
35 return k + (k >> 6); | |
36 } | |
37 }; | |
38 } | |
39 #endif | |
40 | |
41 #endif // NET_QUIC_QUIC_BLOCKED_WRITER_INTERFACE_H_ | |
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