C# Class Mosa.FileSystem.FAT.VfsFile

Inheritance: Mosa.FileSystem.VFS.NodeBase
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Protected Properties

Property Type Description
directoryIndex uint
directorySector uint
fileCluster uint

Public Methods

Method Description
Create ( string name, VfsNodeType type, object settings ) : IVfsNode

Creates a new file system entry of the given name and type.

In theory every file system should support any VfsNodeType. Standard objects, such as directories and files are obvious. For other objects however, the file system is encouraged to store the passed settings in a specially marked file and treat these files as the appropriate node type. Instances of these objects can be retrieved using VfsObjectFactory.Create(settings). Access rights do not need to be checked by the node implementation. They have been already been checked by the VirtualFileSystem itself.

Delete ( IVfsNode child, DirectoryEntry dentry ) : void

Called to delete a child from a directory.

This function deletes a child IVfsNode from a directory. If child is a directory, it will be empty before this call is executed. It is recommended to include a debug sanity check though. If the file system needs to know the name of the child to delete, it can retrieve it from DirectoryEntry.Name.

Lookup ( string name ) : IVfsNode

Requests the IVfsNode to perform a lookup on its children.
Open ( FileAccess access, FileShare sharing ) : object

Opens the specified access.
VfsFile ( IFileSystem fs, uint fileCluster, uint directorySector, uint directoryIndex ) : System.IO

Initializes a new instance of the VfsFile class.

Method Details

Create() public method

Creates a new file system entry of the given name and type.
In theory every file system should support any VfsNodeType. Standard objects, such as directories and files are obvious. For other objects however, the file system is encouraged to store the passed settings in a specially marked file and treat these files as the appropriate node type. Instances of these objects can be retrieved using VfsObjectFactory.Create(settings). Access rights do not need to be checked by the node implementation. They have been already been checked by the VirtualFileSystem itself.
The specified node type is not supported in the file system owning the node. See remarks about this.
public Create ( string name, VfsNodeType type, object settings ) : IVfsNode
name string The name of the file system entry to create.
type VfsNodeType The type of the file system entry. See remarks.
settings object Potential settings for the file systeme entry.
return IVfsNode

Delete() public method

Called to delete a child from a directory.
This function deletes a child IVfsNode from a directory. If child is a directory, it will be empty before this call is executed. It is recommended to include a debug sanity check though. If the file system needs to know the name of the child to delete, it can retrieve it from DirectoryEntry.Name.
The object does not support removal this way. There's most likely an object specific API to remove this IVfsNode.
public Delete ( IVfsNode child, DirectoryEntry dentry ) : void
child IVfsNode The IVfsNode interface of the child.
dentry Mosa.FileSystem.VFS.DirectoryEntry The DirectoryEntry of the child.
return void

Lookup() public method

Requests the IVfsNode to perform a lookup on its children.
public Lookup ( string name ) : IVfsNode
name string The name of the item to find.
return IVfsNode

Open() public method

Opens the specified access.
public Open ( FileAccess access, FileShare sharing ) : object
access FileAccess The access.
sharing FileShare The sharing.
return object

VfsFile() public method

Initializes a new instance of the VfsFile class.
public VfsFile ( IFileSystem fs, uint fileCluster, uint directorySector, uint directoryIndex ) : System.IO
fs IFileSystem The fs.
fileCluster uint The file cluster.
directorySector uint The directory sector.
directoryIndex uint Index of the directory.
return System.IO

Property Details

directoryIndex protected_oe property

protected uint directoryIndex
return uint

directorySector protected_oe property

protected uint directorySector
return uint

fileCluster protected_oe property

protected uint fileCluster
return uint