text: // 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 QUICHE_QUIC_CORE_QUIC_BLOCKED_WRITER_INTERFACE_H_
  #define QUICHE_QUIC_CORE_QUIC_BLOCKED_WRITER_INTERFACE_H_
  
  #include "quiche/quic/platform/api/quic_export.h"
  
  namespace quic {
  
  class QUIC_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 OnBlockedWriterCanWrite() = 0;
  
    virtual bool IsWriterBlocked() const = 0;
  };
  
  }  // namespace quic
  
  #endif  // QUICHE_QUIC_CORE_QUIC_BLOCKED_WRITER_INTERFACE_H_
  