Class CosmosVFS

Cosmos default virtual file system.

Inheritance

System.Object

VFSBase

CosmosVFS

Inherited Members

VFSBase.DirectorySeparatorChar

VFSBase.AltDirectorySeparatorChar

VFSBase.VolumeSeparatorChar

System.Object.Equals(System.Object)

System.Object.Equals(System.Object, System.Object)

System.Object.GetHashCode()

System.Object.GetType()

System.Object.MemberwiseClone()

System.Object.ReferenceEquals(System.Object, System.Object)

System.Object.ToString()

Namespace: Cosmos.System.FileSystem

Assembly: Cosmos.System2.dll

Syntax

public class CosmosVFS : VFSBase

Properties

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Disks

List of disks.

Declaration

public List<Disk> Disks { get; }

Property Value

Type	Description
System.Collections.Generic.List<Disk>

Methods

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CreateDirectory(String)

Creates a directory.

Declaration

public override DirectoryEntry CreateDirectory(string aPath)

Parameters

Type	Name	Description
System.String	aPath	The full path including the directory to create.

Returns

Type	Description
DirectoryEntry	DirectoryEntry value.

Overrides

VFSBase.CreateDirectory(String)

Exceptions

Type	Condition
System.ArgumentNullException	Thrown if aPath is null. aNewDirectory is null or empty. memory error.
System.ArgumentOutOfRangeException	Thrown on memory error / unknown directory entry type.
System.OverflowException	Thrown when data lenght is greater then Int32.MaxValue.
System.Exception	Thrown when data size invalid. invalid directory entry type. the entry at aPath is not a directory. memory error.
System.ArgumentException	Thrown if aPath length is zero. Thrown if aPath is invalid. memory error.
System.RankException	Thrown on fatal error (contact support).
System.ArrayTypeMismatchException	Thrown on fatal error (contact support).
System.InvalidCastException	Thrown on memory error.
System.IO.PathTooLongException	Thrown when The aPath is longer than the system defined maximum length.

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CreateFile(String)

Creates a new file.

Declaration

public override DirectoryEntry CreateFile(string aPath)

Parameters

Type	Name	Description
System.String	aPath	The full path including the file to create.

Returns

Type	Description
DirectoryEntry	DirectoryEntry value.

Overrides

VFSBase.CreateFile(String)

Exceptions

Type	Condition
System.ArgumentNullException	Thrown if aPath is null. aNewDirectory is null or empty. memory error.
System.ArgumentOutOfRangeException	Thrown on memory error / unknown directory entry type.
System.OverflowException	Thrown when data lenght is greater then Int32.MaxValue.
System.Exception	Thrown when data size invalid. invalid directory entry type. the entry at aPath is not a file. Thrown when the parent directory of aPath is not a directory. memory error.
System.ArgumentException	Thrown if aPath length is zero. Thrown if aPath is invalid. memory error.
System.RankException	Thrown on fatal error (contact support).
System.ArrayTypeMismatchException	Thrown on fatal error (contact support).
System.InvalidCastException	Thrown on memory error.
System.IO.PathTooLongException	Thrown when The aPath is longer than the system defined maximum length.

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DeleteDirectory(DirectoryEntry)

Deletes an empty directory.

Declaration

public override bool DeleteDirectory(DirectoryEntry aPath)

Parameters

Type	Name	Description
DirectoryEntry	aPath	The full path.

Returns

Type	Description
System.Boolean	TRUE on success.

Overrides

VFSBase.DeleteDirectory(DirectoryEntry)

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DeleteFile(DirectoryEntry)

Deletes a file.

Declaration

public override bool DeleteFile(DirectoryEntry aPath)

Parameters

Type	Name	Description
DirectoryEntry	aPath	The full path.

Returns

Type	Description
System.Boolean	TRUE on success.

Overrides

VFSBase.DeleteFile(DirectoryEntry)

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GetAvailableFreeSpace(String)

Get available free space.

Declaration

public override long GetAvailableFreeSpace(string aDriveId)

Parameters

Type	Name	Description
System.String	aDriveId	A drive id to get the size of.

Returns

Type	Description
System.Int64	long value.

Overrides

VFSBase.GetAvailableFreeSpace(String)

Exceptions

Type	Condition
System.ArgumentException	Thrown when aDriveId is null or empty.
System.Exception	Unable to determine filesystem for path: + aDriveId

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GetDirectory(String)

Gets the directory entry for a directory.

Declaration

public override DirectoryEntry GetDirectory(string aPath)

Parameters

Type	Name	Description
System.String	aPath	The full path path.

Returns

Type	Description
DirectoryEntry	A directory entry for the directory.

Overrides

VFSBase.GetDirectory(String)

Exceptions

Type	Condition
System.Exception	Thrown when the entry at aPath is not a directory.

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GetDirectoryListing(DirectoryEntry)

Gets the directory listing for a directory entry.

Declaration

public override List<DirectoryEntry> GetDirectoryListing(DirectoryEntry aDirectory)

Parameters

Type	Name	Description
DirectoryEntry	aDirectory	The directory entry.

Returns

Type	Description
System.Collections.Generic.List<DirectoryEntry>	DirectoryEntry type list value.

Overrides

VFSBase.GetDirectoryListing(DirectoryEntry)

Exceptions

Type	Condition
System.ArgumentException	Thrown if aDirectory is null or empty. aDirectory.mFullPath is null or empty. Memory error. Fatal error.
System.ArgumentNullException	Thrown if aFS is null. Root directory is null. Memory error.
System.ArgumentOutOfRangeException	Thrown when root directory address is smaller then root directory address. Memory error.
System.OverflowException	Thrown when aDirectory.mFullPath is too deep. Data lenght is greater then Int32.MaxValue.
System.Exception	Thrown when unable to determine filesystem for path: + aDirectory.mFullPath. data size invalid. invalid directory entry type. path not found.

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GetDirectoryListing(String)

Gets the directory listing for a path.

Declaration

public override List<DirectoryEntry> GetDirectoryListing(string aPath)

Parameters

Type	Name	Description
System.String	aPath	The full path.

Returns

Type	Description
System.Collections.Generic.List<DirectoryEntry>	DirectoryEntry list value.

Overrides

VFSBase.GetDirectoryListing(String)

Exceptions

Type	Condition
System.ArgumentException	Thrown if aPath is null or empty. Root path is null or empty. Memory error. Fatal error.
System.ArgumentNullException	Thrown if aFS is null. Root directory is null. Memory error.
System.ArgumentOutOfRangeException	Thrown when root directory address is smaller then root directory address. Memory error.
System.OverflowException	Thrown when aPath is too deep. Data lenght is greater then Int32.MaxValue.
System.Exception	Thrown when unable to determine filesystem for path: + aPath. data size invalid. invalid directory entry type. path not found.

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GetDisks()

Declaration

public override List<Disk> GetDisks()

Returns

Type	Description
System.Collections.Generic.List<Disk>

Overrides

VFSBase.GetDisks()

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GetFile(String)

Gets the directory entry for a file.

Declaration

public override DirectoryEntry GetFile(string aPath)

Parameters

Type	Name	Description
System.String	aPath	The full path.

Returns

Type	Description
DirectoryEntry	A directory entry for the file.

Overrides

VFSBase.GetFile(String)

Exceptions

Type	Condition
System.Exception	Thrown when the entry at aPath is not a file.

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GetFileAttributes(String)

Gets the attributes for a File / Directory.

Declaration

public override FileAttributes GetFileAttributes(string aPath)

Parameters

Type	Name	Description
System.String	aPath	The path of the File / Directory.

Returns

Type	Description
System.IO.FileAttributes	The File / Directory attributes.

Overrides

VFSBase.GetFileAttributes(String)

Exceptions

Type	Condition
System.ArgumentException	Thrown if aPath is null or empty. Thrown when aFS root path is null or empty. Thrown on memory error. Fatal error.
System.ArgumentNullException	Thrown if aFS is null. Thrown when root directory is null. Thrown on memory error.
System.ArgumentOutOfRangeException	Thrown when root directory address is smaller then root directory address. Thrown on memory error.
System.OverflowException	Thrown when aPath is too deep. Thrown when data lenght is greater then Int32.MaxValue.
System.Exception	Thrown when data size invalid. Thrown on invalid directory entry type. Thrown when aPath entry not found. Thrown when unable to determine filesystem for path: + aPath. Thrown aPath is neither a file neither a directory.

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GetFileSystemLabel(String)

Get file system label.

Declaration

public override string GetFileSystemLabel(string aDriveId)

Parameters

Type	Name	Description
System.String	aDriveId	A drive id.

Returns

Type	Description
System.String	string value.

Overrides

VFSBase.GetFileSystemLabel(String)

Exceptions

Type	Condition
System.ArgumentException	Thrown when aDriveId is null or empty.
System.Exception	Unable to determine filesystem for path: + aDriveId

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GetFileSystemType(String)

Get file system type.

Declaration

public override string GetFileSystemType(string aDriveId)

Parameters

Type	Name	Description
System.String	aDriveId	A drive id.

Returns

Type	Description
System.String	string value.

Overrides

VFSBase.GetFileSystemType(String)

Exceptions

Type	Condition
System.ArgumentException	Thrown when aDriveId is null or empty.
System.Exception	Unable to determine filesystem for path: + aDriveId

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GetNextFilesystemLetter()

Declaration

public override string GetNextFilesystemLetter()

Returns

Type	Description
System.String

Overrides

VFSBase.GetNextFilesystemLetter()

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GetTotalFreeSpace(String)

Get total free space.

Declaration

public override long GetTotalFreeSpace(string aDriveId)

Parameters

Type	Name	Description
System.String	aDriveId	A drive id to get the size of.

Returns

Type	Description
System.Int64	long value.

Overrides

VFSBase.GetTotalFreeSpace(String)

Exceptions

Type	Condition
System.ArgumentException	Thrown when aDriveId is null or empty.
System.Exception	Unable to determine filesystem for path: + aDriveId

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GetTotalSize(String)

Get total size in bytes.

Declaration

public override long GetTotalSize(string aDriveId)

Parameters

Type	Name	Description
System.String	aDriveId	A drive id to get the size of.

Returns

Type	Description
System.Int64	long value.

Overrides

VFSBase.GetTotalSize(String)

Exceptions

Type	Condition
System.ArgumentException	Thrown when aDriveId is null or empty.
System.Exception	Unable to determine filesystem for path: + aDriveId

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GetVolume(String)

Gets the directory entry for a volume.

Declaration

public override DirectoryEntry GetVolume(string aPath)

Parameters

Type	Name	Description
System.String	aPath	The volume root path.

Returns

Type	Description
DirectoryEntry	A directory entry for the volume.

Overrides

VFSBase.GetVolume(String)

Exceptions

Type	Condition
System.ArgumentException	Thrown when aPath is null or empty.
System.Exception	Unable to determine filesystem for path: + aPath
System.ArgumentNullException	Thrown if filesystem is null.
System.ArgumentOutOfRangeException	Thrown when root directory address is smaller then root directory address.

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GetVolumes()

Gets the volumes for all registered file systems.

Declaration

public override List<DirectoryEntry> GetVolumes()

Returns

Type	Description
System.Collections.Generic.List<DirectoryEntry>	A list of directory entries for all volumes.

Overrides

VFSBase.GetVolumes()

Exceptions

Type	Condition
System.ArgumentNullException	Thrown if filesystem is null.
System.ArgumentOutOfRangeException	Thrown when root directory address is smaller then root directory address.
System.ArgumentException	Thrown when root path is null or empty.

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Initialize(Boolean)

Initializes the virtual file system.

Declaration

public override void Initialize(bool aShowInfo)

Parameters

Type	Name	Description
System.Boolean	aShowInfo

Overrides

VFSBase.Initialize(Boolean)

Exceptions

Type	Condition
System.IO.IOException	Thrown on I/O exception.
System.ArgumentNullException	Thrown on memory error.
System.OverflowException	Thrown on memory error.
System.Exception	Thrown on memory error.
System.ArgumentException	Thrown on memory error.
System.ArgumentOutOfRangeException	Thrown on memory error.
System.IO.PathTooLongException	Thrown on fatal error.
System.IO.FileNotFoundException	Thrown on memory error.
System.IO.DirectoryNotFoundException	Thrown on fatal error.

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InitializePartitions()

Mounts filesystems.

Declaration

protected virtual void InitializePartitions()

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IsValidDriveId(String)

Verifies if driveId is a valid id for a drive.

Declaration

public override bool IsValidDriveId(string driveId)

Parameters

Type	Name	Description
System.String	driveId	The id of the drive.

Returns

Type	Description
System.Boolean	true if the drive id is valid, false otherwise.

Overrides

VFSBase.IsValidDriveId(String)

Exceptions

Type	Condition
System.ArgumentOutOfRangeException	Thrown if driveId length is smaller then 2, or greater than Int32.MaxValue.

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SetFileAttributes(String, FileAttributes)

Sets the attributes for a File / Directory. Not implemented.

Declaration

public override void SetFileAttributes(string aPath, FileAttributes fileAttributes)

Parameters

Type	Name	Description
System.String	aPath	The path of the File / Directory.
System.IO.FileAttributes	fileAttributes	The attributes of the File / Directory.

Overrides

VFSBase.SetFileAttributes(String, FileAttributes)

Exceptions

Type	Condition
System.NotImplementedException	Thrown always

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SetFileSystemLabel(String, String)

Set file system type.

Declaration

public override void SetFileSystemLabel(string aDriveId, string aLabel)

Parameters

Type	Name	Description
System.String	aDriveId	A drive id.
System.String	aLabel	A label to be set.

Overrides

VFSBase.SetFileSystemLabel(String, String)

Exceptions

Type	Condition
System.ArgumentException	Thrown when aDriveId is null or empty.
System.Exception	Unable to determine filesystem for path: + aDriveId