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| 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_MOUNTS_MOUNT_NODE_DIR_H_ | |
| 6 #define LIBRARIES_NACL_MOUNTS_MOUNT_NODE_DIR_H_ | |
| 7 | |
| 8 #include <map> | |
| 9 #include <string> | |
| 10 | |
| 11 #include "nacl_mounts/mount_node.h" | |
| 12 | |
| 13 struct dirent; | |
| 14 | |
| 15 class MountDev; | |
| 16 class MountHtml5Fs; | |
| 17 class MountHttp; | |
| 18 class MountMem; | |
| 19 | |
| 20 class MountNodeDir : public MountNode { | |
| 21 protected: | |
| 22 explicit MountNodeDir(Mount* mnt); | |
| 23 virtual ~MountNodeDir(); | |
| 24 | |
| 25 public: | |
| 26 typedef std::map<std::string, MountNode*> MountNodeMap_t; | |
| 27 | |
| 28 virtual int GetDents(size_t offs, struct dirent* pdir, size_t count); | |
| 29 virtual int Read(size_t offs, void *buf, size_t count); | |
| 30 virtual int Truncate(size_t size); | |
| 31 virtual int Write(size_t offs, void *buf, size_t count); | |
| 32 | |
| 33 // Adds a finds or adds a directory entry as an INO, updating the refcount | |
| 34 virtual int AddChild(const std::string& name, MountNode *node); | |
| 35 virtual int RemoveChild(const std::string& name); | |
| 36 virtual MountNode* FindChild(const std::string& name); | |
| 37 virtual int ChildCount(); | |
| 38 | |
| 39 | |
| 40 protected: | |
| 41 void ClearCache(); | |
| 42 void BuildCache(); | |
| 43 | |
| 44 private: | |
| 45 struct dirent* cache_; | |
| 46 MountNodeMap_t map_; | |
| 47 | |
| 48 friend class MountDev; | |
| 49 friend class MountMem; | |
| 50 friend class MountHttp; | |
| 51 friend class MountHtml5Fs; | |
| 52 }; | |
| 53 | |
| 54 #endif // LIBRARIES_NACL_MOUNTS_MOUNT_NODE_DIR_H_ | |
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