109 lines
1.9 KiB
C++
109 lines
1.9 KiB
C++
#pragma once
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#include "types.h"
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#include "VirtualFileSystem.h"
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class Superblock;
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class Dentry;
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extern VirtualFileSystem vfs;
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// Mount flags
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// Only MS_RDONLY is supported by now.
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/**
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* Mount the Filesystem read-only
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*/
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#define MS_RDONLY 1
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class VfsMount
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{
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protected:
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/**
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* Points to the parent filesystem on which this filesystem is mounted on.
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*/
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VfsMount *mnt_parent_;
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/**
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* Points to the Dentry of the mount directory of this filesystem.
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*/
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Dentry *mnt_mountpoint_;
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/**
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* Points to the Dentry of the root directory of this filesystem.
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*/
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Dentry *mnt_root_;
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/**
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* Points to the superblock object of this filesystem.
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*/
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Superblock *mnt_sb_;
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/**
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* The mnt_flags_ field of the descriptor stores the value of several flags
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* that specify how some kinds of files in the mounted filesystem are
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* handled.
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*/
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int32 mnt_flags_;
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public:
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VfsMount();
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/**
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* constructor
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* @param parent the parent dentry of the mount point
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* @param mountpoint the mount points dentry
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* @param root the root dentry
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* @param superblock the superblock mounted
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* @param flags the flags
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*/
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VfsMount(VfsMount* parent, Dentry * mountpoint, Dentry* root,
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Superblock* superblock, int32 flags);
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virtual ~VfsMount();
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/**
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* get the parent-VfsMount of the VfsMount
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* @return the parent-VfsMount
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*/
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VfsMount *getParent() const;
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/**
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* get the mount-point of the VfsMount
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* @return the mount point dentry
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*/
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Dentry *getMountPoint() const;
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/**
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* get the ROOT-directory of the VfsMount
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* @return the root dentry
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*/
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Dentry *getRoot() const;
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/**
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* get the superblock fo the VfsMount
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* @return the superblock
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*/
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Superblock *getSuperblock() const;
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/**
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* get the flags
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* @return the flags
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*/
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int32 getFlags() const;
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/**
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* NOTE: only used as workaround
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*/
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void clear();
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bool isRootMount() const;
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};
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