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_MEMFS_MEM_FS_NODE_H_ 6 #define LIBRARIES_NACL_IO_MEMFS_MEM_FS_NODE_H_ 7 8 #include "nacl_io/node.h" 9 10 namespace nacl_io { 11 12 class MemFsNode : public Node { 13 public: 14 explicit MemFsNode(Filesystem* filesystem); 15 16 protected: 17 virtual ~MemFsNode(); 18 19 public: 20 // Normal read/write operations on a file 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 virtual Error FTruncate(off_t size); 30 virtual Error Fchmod(mode_t mode); 31 32 private: 33 Error Resize(off_t size); 34 35 char* data_; 36 size_t data_capacity_; 37 friend class MemFs; 38 }; 39 40 } // namespace nacl_io 41 42 #endif // LIBRARIES_NACL_IO_MEMFS_MEM_FS_NODE_H_ 43
