native_client_sdk/src/libraries/nacl_io/pipe/pipe_node.h

   1 // Copyright 2013 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 LIBRARIES_NACL_IO_PIPE_PIPE_NODE_H_
   6 #define LIBRARIES_NACL_IO_PIPE_PIPE_NODE_H_
   7
   8 #include <map>
   9 #include <string>
  10
  11 #include "nacl_io/pipe/pipe_event_emitter.h"
  12 #include "nacl_io/stream/stream_node.h"
  13
  14 namespace nacl_io {
  15
  16 class PipeNode : public StreamNode {
  17  public:
  18   explicit PipeNode(Filesystem* fs);
  19
  20   virtual PipeEventEmitter* GetEventEmitter();
  21   virtual Error Read(const HandleAttr& attr,
  22                      void* buf,
  23                      size_t count,
  24                      int* out_bytes);
  25   virtual Error Write(const HandleAttr& attr,
  26                       const void* buf,
  27                       size_t count,
  28                       int* out_bytes);
  29
  30  protected:
  31   ScopedPipeEventEmitter pipe_;
  32
  33   friend class KernelProxy;
  34   friend class StreamFs;
  35 };
  36
  37 }  // namespace nacl_io
  38
  39 #endif  // LIBRARIES_NACL_IO_PIPE_PIPE_NODE_H_