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 #ifndef LIBRARIES_NACL_IO_MOUNT_HTML5FS_NODE_H_ 6 #define LIBRARIES_NACL_IO_MOUNT_HTML5FS_NODE_H_ 7 8 #include <ppapi/c/pp_resource.h> 9 #include "nacl_io/mount_node.h" 10 11 namespace nacl_io { 12 13 class MountHtml5Fs; 14 15 class MountNodeHtml5Fs : public MountNode { 16 public: 17 // Normal OS operations on a node (file), can be called by the kernel 18 // directly so it must lock and unlock appropriately. These functions 19 // must not be called by the mount. 20 virtual Error FSync(); 21 virtual Error GetDents(size_t offs, 22 struct dirent* pdir, 23 size_t count, 24 int* out_bytes); 25 virtual Error GetStat(struct stat* stat); 26 virtual Error Read(size_t offs, void* buf, size_t count, int* out_bytes); 27 virtual Error FTruncate(off_t size); 28 virtual Error Write(size_t offs, 29 const void* buf, 30 size_t count, 31 int* out_bytes); 32 33 virtual Error GetSize(size_t *out_size); 34 35 protected: 36 MountNodeHtml5Fs(Mount* mount, PP_Resource fileref); 37 38 // Init with standard open flags 39 virtual Error Init(int o_mode); 40 virtual void Destroy(); 41 42 private: 43 PP_Resource fileref_resource_; 44 PP_Resource fileio_resource_; // 0 if the file is a directory. 45 46 // Returns true if this node is a directory. 47 bool IsDirectory() const { 48 return !fileio_resource_; 49 } 50 51 friend class MountHtml5Fs; 52 }; 53 54 } // namespace nacl_io 55 56 #endif // LIBRARIES_NACL_IO_MOUNT_HTML5FS_NODE_H_ 57
