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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_MEM_H_ | |
6 #define LIBRARIES_NACL_MOUNTS_MOUNT_MEM_H_ | |
7 | |
8 #include <map> | |
9 #include <string> | |
10 | |
11 #include "nacl_mounts/mount.h" | |
12 | |
13 class MountMem : public Mount { | |
14 protected: | |
15 MountMem(); | |
16 | |
17 virtual bool Init(int dev, StringMap_t& args, PepperInterface* ppapi); | |
18 virtual void Destroy(); | |
19 | |
20 // The protected functions are only used internally and will not | |
21 // acquire or release the mount's lock themselves. The caller is | |
22 // required to use correct locking as needed. | |
23 MountNode *AllocateData(int mode); | |
24 MountNode *AllocatePath(int mode); | |
25 | |
26 // Allocate or free an INODE number. | |
27 int AllocateINO(); | |
28 void FreeINO(int ino); | |
29 | |
30 // Find a Node specified node optionally failing if type does not match. | |
31 virtual MountNode* FindNode(const Path& path, int type = 0); | |
32 | |
33 public: | |
34 virtual MountNode *Open(const Path& path, int mode); | |
35 virtual int Unlink(const Path& path); | |
36 virtual int Mkdir(const Path& path, int perm); | |
37 virtual int Rmdir(const Path& path); | |
38 virtual int Remove(const Path& path); | |
39 | |
40 private: | |
41 static const int REMOVE_DIR = 1; | |
42 static const int REMOVE_FILE = 2; | |
43 static const int REMOVE_ALL = REMOVE_DIR | REMOVE_FILE; | |
44 | |
45 int RemoveInternal(const Path& path, int remove_type); | |
46 | |
47 MountNode* root_; | |
48 size_t max_ino_; | |
49 | |
50 friend class Mount; | |
51 DISALLOW_COPY_AND_ASSIGN(MountMem); | |
52 }; | |
53 | |
54 #endif // LIBRARIES_NACL_MOUNTS_MOUNT_MEM_H_ | |
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