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_ 42
