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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// This is an interface for all objects that want to be notified that
// the underlying UDP socket is available for writing (not write blocked
// anymore).
#ifndef NET_QUIC_QUIC_BLOCKED_WRITER_INTERFACE_H_
#define NET_QUIC_QUIC_BLOCKED_WRITER_INTERFACE_H_
#include <stddef.h>
#include "net/base/net_export.h"
namespace net {
class NET_EXPORT_PRIVATE QuicBlockedWriterInterface {
public:
virtual ~QuicBlockedWriterInterface() {}
// Called by the PacketWriter when the underlying socket becomes writable
// so that the BlockedWriter can go ahead and try writing.
virtual void OnCanWrite() = 0;
};
// Hash pointers as if they were int's, but bring more entropy to the lower
// bits.
struct QuicBlockedWriterInterfacePtrHash {
std::size_t operator()(const net::QuicBlockedWriterInterface* ptr) const {
size_t k = reinterpret_cast<size_t>(ptr);
return k + (k >> 6);
}
};
} // namespace net
#endif // NET_QUIC_QUIC_BLOCKED_WRITER_INTERFACE_H_
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