| // Copyright 2013 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. |
| |
| #ifndef LIBRARIES_NACL_IO_DIR_NODE_H_ |
| #define LIBRARIES_NACL_IO_DIR_NODE_H_ |
| |
| #include <map> |
| #include <string> |
| #include <vector> |
| |
| #include "nacl_io/getdents_helper.h" |
| #include "nacl_io/node.h" |
| |
| namespace nacl_io { |
| |
| class DevFs; |
| class Html5Fs; |
| class HttpFs; |
| class MemFs; |
| class DirNode; |
| |
| typedef sdk_util::ScopedRef<DirNode> ScopedDirNode; |
| |
| class DirNode : public Node { |
| protected: |
| DirNode(Filesystem* fs, mode_t mode); |
| virtual ~DirNode(); |
| |
| public: |
| typedef std::map<std::string, ScopedNode> NodeMap_t; |
| |
| virtual Error FTruncate(off_t size); |
| virtual Error GetDents(size_t offs, |
| struct dirent* pdir, |
| size_t count, |
| int* out_bytes); |
| virtual Error Read(const HandleAttr& attr, |
| void* buf, |
| size_t count, |
| int* out_bytes); |
| virtual Error Write(const HandleAttr& attr, |
| const void* buf, |
| size_t count, |
| int* out_bytes); |
| virtual Error Fchmod(mode_t mode); |
| |
| // Adds a finds or adds a directory entry as an INO, updating the refcount |
| virtual Error AddChild(const std::string& name, const ScopedNode& node); |
| virtual Error RemoveChild(const std::string& name); |
| virtual Error FindChild(const std::string& name, ScopedNode* out_node); |
| virtual int ChildCount(); |
| |
| protected: |
| void BuildCache_Locked(); |
| void ClearCache_Locked(); |
| |
| private: |
| GetDentsHelper cache_; |
| NodeMap_t map_; |
| bool cache_built_; |
| |
| friend class DevFs; |
| friend class Html5Fs; |
| friend class HttpFs; |
| friend class MemFs; |
| }; |
| |
| } // namespace nacl_io |
| |
| #endif // LIBRARIES_NACL_IO_DIR_NODE_H_ |