mirror of
https://github.com/Thealexbarney/LibHac.git
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509 lines
20 KiB
C#
509 lines
20 KiB
C#
//
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// Copyright (c) 2008-2011, Kenneth Bell
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//
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// Permission is hereby granted, free of charge, to any person obtaining a
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// copy of this software and associated documentation files (the "Software"),
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// to deal in the Software without restriction, including without limitation
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// the rights to use, copy, modify, merge, publish, distribute, sublicense,
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// and/or sell copies of the Software, and to permit persons to whom the
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// Software is furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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// DEALINGS IN THE SOFTWARE.
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//
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using System;
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using System.IO;
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using DiscUtils.Streams;
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namespace DiscUtils
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{
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/// <summary>
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/// Provides the base class for all file systems.
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/// </summary>
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public abstract class DiscFileSystem :
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#if !NETCORE
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MarshalByRefObject,
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#endif
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IFileSystem, IDisposable
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{
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/// <summary>
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/// Initializes a new instance of the DiscFileSystem class.
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/// </summary>
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protected DiscFileSystem()
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{
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Options = new DiscFileSystemOptions();
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}
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/// <summary>
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/// Initializes a new instance of the DiscFileSystem class.
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/// </summary>
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/// <param name="defaultOptions">The options instance to use for this file system instance.</param>
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protected DiscFileSystem(DiscFileSystemOptions defaultOptions)
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{
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Options = defaultOptions;
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}
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/// <summary>
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/// Finalizes an instance of the DiscFileSystem class.
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/// </summary>
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~DiscFileSystem()
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{
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Dispose(false);
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}
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/// <summary>
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/// Gets the file system options, which can be modified.
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/// </summary>
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public virtual DiscFileSystemOptions Options { get; }
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/// <summary>
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/// Gets a friendly description of the file system type.
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/// </summary>
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public abstract string FriendlyName { get; }
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/// <summary>
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/// Gets a value indicating whether the file system is read-only or read-write.
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/// </summary>
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/// <returns>true if the file system is read-write.</returns>
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public abstract bool CanWrite { get; }
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/// <summary>
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/// Gets the root directory of the file system.
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/// </summary>
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public virtual DiscDirectoryInfo Root
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{
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get { return new DiscDirectoryInfo(this, string.Empty); }
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}
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/// <summary>
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/// Gets the volume label.
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/// </summary>
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public virtual string VolumeLabel
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{
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get { return string.Empty; }
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}
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/// <summary>
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/// Gets a value indicating whether the file system is thread-safe.
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/// </summary>
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public virtual bool IsThreadSafe
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{
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get { return false; }
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}
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/// <summary>
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/// Copies an existing file to a new file.
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/// </summary>
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/// <param name="sourceFile">The source file.</param>
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/// <param name="destinationFile">The destination file.</param>
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public virtual void CopyFile(string sourceFile, string destinationFile)
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{
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CopyFile(sourceFile, destinationFile, false);
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}
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/// <summary>
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/// Copies an existing file to a new file, allowing overwriting of an existing file.
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/// </summary>
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/// <param name="sourceFile">The source file.</param>
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/// <param name="destinationFile">The destination file.</param>
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/// <param name="overwrite">Whether to permit over-writing of an existing file.</param>
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public abstract void CopyFile(string sourceFile, string destinationFile, bool overwrite);
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/// <summary>
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/// Creates a directory.
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/// </summary>
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/// <param name="path">The path of the new directory.</param>
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public abstract void CreateDirectory(string path);
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/// <summary>
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/// Deletes a directory.
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/// </summary>
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/// <param name="path">The path of the directory to delete.</param>
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public abstract void DeleteDirectory(string path);
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/// <summary>
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/// Deletes a directory, optionally with all descendants.
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/// </summary>
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/// <param name="path">The path of the directory to delete.</param>
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/// <param name="recursive">Determines if the all descendants should be deleted.</param>
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public virtual void DeleteDirectory(string path, bool recursive)
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{
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if (recursive)
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{
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foreach (string dir in GetDirectories(path))
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{
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DeleteDirectory(dir, true);
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}
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foreach (string file in GetFiles(path))
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{
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DeleteFile(file);
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}
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}
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DeleteDirectory(path);
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}
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/// <summary>
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/// Deletes a file.
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/// </summary>
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/// <param name="path">The path of the file to delete.</param>
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public abstract void DeleteFile(string path);
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/// <summary>
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/// Indicates if a directory exists.
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/// </summary>
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/// <param name="path">The path to test.</param>
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/// <returns>true if the directory exists.</returns>
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public abstract bool DirectoryExists(string path);
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/// <summary>
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/// Indicates if a file exists.
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/// </summary>
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/// <param name="path">The path to test.</param>
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/// <returns>true if the file exists.</returns>
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public abstract bool FileExists(string path);
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/// <summary>
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/// Indicates if a file or directory exists.
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/// </summary>
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/// <param name="path">The path to test.</param>
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/// <returns>true if the file or directory exists.</returns>
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public virtual bool Exists(string path)
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{
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return FileExists(path) || DirectoryExists(path);
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}
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/// <summary>
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/// Gets the names of subdirectories in a specified directory.
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/// </summary>
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/// <param name="path">The path to search.</param>
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/// <returns>Array of directories.</returns>
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public virtual string[] GetDirectories(string path)
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{
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return GetDirectories(path, "*.*", SearchOption.TopDirectoryOnly);
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}
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/// <summary>
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/// Gets the names of subdirectories in a specified directory matching a specified
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/// search pattern.
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/// </summary>
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/// <param name="path">The path to search.</param>
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/// <param name="searchPattern">The search string to match against.</param>
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/// <returns>Array of directories matching the search pattern.</returns>
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public virtual string[] GetDirectories(string path, string searchPattern)
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{
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return GetDirectories(path, searchPattern, SearchOption.TopDirectoryOnly);
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}
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/// <summary>
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/// Gets the names of subdirectories in a specified directory matching a specified
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/// search pattern, using a value to determine whether to search subdirectories.
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/// </summary>
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/// <param name="path">The path to search.</param>
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/// <param name="searchPattern">The search string to match against.</param>
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/// <param name="searchOption">Indicates whether to search subdirectories.</param>
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/// <returns>Array of directories matching the search pattern.</returns>
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public abstract string[] GetDirectories(string path, string searchPattern, SearchOption searchOption);
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/// <summary>
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/// Gets the names of files in a specified directory.
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/// </summary>
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/// <param name="path">The path to search.</param>
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/// <returns>Array of files.</returns>
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public virtual string[] GetFiles(string path)
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{
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return GetFiles(path, "*.*", SearchOption.TopDirectoryOnly);
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}
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/// <summary>
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/// Gets the names of files in a specified directory.
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/// </summary>
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/// <param name="path">The path to search.</param>
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/// <param name="searchPattern">The search string to match against.</param>
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/// <returns>Array of files matching the search pattern.</returns>
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public virtual string[] GetFiles(string path, string searchPattern)
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{
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return GetFiles(path, searchPattern, SearchOption.TopDirectoryOnly);
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}
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/// <summary>
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/// Gets the names of files in a specified directory matching a specified
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/// search pattern, using a value to determine whether to search subdirectories.
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/// </summary>
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/// <param name="path">The path to search.</param>
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/// <param name="searchPattern">The search string to match against.</param>
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/// <param name="searchOption">Indicates whether to search subdirectories.</param>
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/// <returns>Array of files matching the search pattern.</returns>
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public abstract string[] GetFiles(string path, string searchPattern, SearchOption searchOption);
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/// <summary>
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/// Gets the names of all files and subdirectories in a specified directory.
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/// </summary>
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/// <param name="path">The path to search.</param>
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/// <returns>Array of files and subdirectories matching the search pattern.</returns>
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public abstract string[] GetFileSystemEntries(string path);
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/// <summary>
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/// Gets the names of files and subdirectories in a specified directory matching a specified
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/// search pattern.
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/// </summary>
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/// <param name="path">The path to search.</param>
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/// <param name="searchPattern">The search string to match against.</param>
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/// <returns>Array of files and subdirectories matching the search pattern.</returns>
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public abstract string[] GetFileSystemEntries(string path, string searchPattern);
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/// <summary>
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/// Moves a directory.
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/// </summary>
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/// <param name="sourceDirectoryName">The directory to move.</param>
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/// <param name="destinationDirectoryName">The target directory name.</param>
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public abstract void MoveDirectory(string sourceDirectoryName, string destinationDirectoryName);
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/// <summary>
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/// Moves a file.
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/// </summary>
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/// <param name="sourceName">The file to move.</param>
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/// <param name="destinationName">The target file name.</param>
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public virtual void MoveFile(string sourceName, string destinationName)
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{
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MoveFile(sourceName, destinationName, false);
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}
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/// <summary>
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/// Moves a file, allowing an existing file to be overwritten.
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/// </summary>
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/// <param name="sourceName">The file to move.</param>
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/// <param name="destinationName">The target file name.</param>
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/// <param name="overwrite">Whether to permit a destination file to be overwritten.</param>
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public abstract void MoveFile(string sourceName, string destinationName, bool overwrite);
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/// <summary>
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/// Opens the specified file.
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/// </summary>
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/// <param name="path">The full path of the file to open.</param>
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/// <param name="mode">The file mode for the created stream.</param>
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/// <returns>The new stream.</returns>
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public virtual SparseStream OpenFile(string path, FileMode mode)
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{
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return OpenFile(path, mode, FileAccess.ReadWrite);
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}
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/// <summary>
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/// Opens the specified file.
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/// </summary>
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/// <param name="path">The full path of the file to open.</param>
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/// <param name="mode">The file mode for the created stream.</param>
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/// <param name="access">The access permissions for the created stream.</param>
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/// <returns>The new stream.</returns>
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public abstract SparseStream OpenFile(string path, FileMode mode, FileAccess access);
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/// <summary>
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/// Gets the attributes of a file or directory.
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/// </summary>
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/// <param name="path">The file or directory to inspect.</param>
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/// <returns>The attributes of the file or directory.</returns>
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public abstract FileAttributes GetAttributes(string path);
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/// <summary>
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/// Sets the attributes of a file or directory.
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/// </summary>
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/// <param name="path">The file or directory to change.</param>
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/// <param name="newValue">The new attributes of the file or directory.</param>
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public abstract void SetAttributes(string path, FileAttributes newValue);
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/// <summary>
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/// Gets the creation time (in local time) of a file or directory.
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/// </summary>
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/// <param name="path">The path of the file or directory.</param>
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/// <returns>The creation time.</returns>
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public virtual DateTime GetCreationTime(string path)
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{
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return GetCreationTimeUtc(path).ToLocalTime();
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}
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/// <summary>
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/// Sets the creation time (in local time) of a file or directory.
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/// </summary>
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/// <param name="path">The path of the file or directory.</param>
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/// <param name="newTime">The new time to set.</param>
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public virtual void SetCreationTime(string path, DateTime newTime)
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{
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SetCreationTimeUtc(path, newTime.ToUniversalTime());
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}
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/// <summary>
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/// Gets the creation time (in UTC) of a file or directory.
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/// </summary>
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/// <param name="path">The path of the file or directory.</param>
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/// <returns>The creation time.</returns>
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public abstract DateTime GetCreationTimeUtc(string path);
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/// <summary>
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/// Sets the creation time (in UTC) of a file or directory.
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/// </summary>
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/// <param name="path">The path of the file or directory.</param>
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/// <param name="newTime">The new time to set.</param>
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public abstract void SetCreationTimeUtc(string path, DateTime newTime);
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/// <summary>
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/// Gets the last access time (in local time) of a file or directory.
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/// </summary>
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/// <param name="path">The path of the file or directory.</param>
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/// <returns>The last access time.</returns>
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public virtual DateTime GetLastAccessTime(string path)
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{
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return GetLastAccessTimeUtc(path).ToLocalTime();
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}
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/// <summary>
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/// Sets the last access time (in local time) of a file or directory.
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/// </summary>
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/// <param name="path">The path of the file or directory.</param>
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/// <param name="newTime">The new time to set.</param>
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public virtual void SetLastAccessTime(string path, DateTime newTime)
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{
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SetLastAccessTimeUtc(path, newTime.ToUniversalTime());
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}
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/// <summary>
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/// Gets the last access time (in UTC) of a file or directory.
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/// </summary>
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/// <param name="path">The path of the file or directory.</param>
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/// <returns>The last access time.</returns>
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public abstract DateTime GetLastAccessTimeUtc(string path);
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/// <summary>
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/// Sets the last access time (in UTC) of a file or directory.
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/// </summary>
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/// <param name="path">The path of the file or directory.</param>
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/// <param name="newTime">The new time to set.</param>
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public abstract void SetLastAccessTimeUtc(string path, DateTime newTime);
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/// <summary>
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/// Gets the last modification time (in local time) of a file or directory.
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/// </summary>
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/// <param name="path">The path of the file or directory.</param>
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/// <returns>The last write time.</returns>
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public virtual DateTime GetLastWriteTime(string path)
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{
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return GetLastWriteTimeUtc(path).ToLocalTime();
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}
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/// <summary>
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/// Sets the last modification time (in local time) of a file or directory.
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/// </summary>
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/// <param name="path">The path of the file or directory.</param>
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/// <param name="newTime">The new time to set.</param>
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public virtual void SetLastWriteTime(string path, DateTime newTime)
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{
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SetLastWriteTimeUtc(path, newTime.ToUniversalTime());
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}
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/// <summary>
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/// Gets the last modification time (in UTC) of a file or directory.
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/// </summary>
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/// <param name="path">The path of the file or directory.</param>
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/// <returns>The last write time.</returns>
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public abstract DateTime GetLastWriteTimeUtc(string path);
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/// <summary>
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/// Sets the last modification time (in UTC) of a file or directory.
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/// </summary>
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/// <param name="path">The path of the file or directory.</param>
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/// <param name="newTime">The new time to set.</param>
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public abstract void SetLastWriteTimeUtc(string path, DateTime newTime);
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/// <summary>
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/// Gets the length of a file.
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/// </summary>
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/// <param name="path">The path to the file.</param>
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/// <returns>The length in bytes.</returns>
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public abstract long GetFileLength(string path);
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/// <summary>
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/// Gets an object representing a possible file.
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/// </summary>
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/// <param name="path">The file path.</param>
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/// <returns>The representing object.</returns>
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/// <remarks>The file does not need to exist.</remarks>
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public virtual DiscFileInfo GetFileInfo(string path)
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{
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return new DiscFileInfo(this, path);
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}
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/// <summary>
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/// Gets an object representing a possible directory.
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/// </summary>
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/// <param name="path">The directory path.</param>
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/// <returns>The representing object.</returns>
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/// <remarks>The directory does not need to exist.</remarks>
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public virtual DiscDirectoryInfo GetDirectoryInfo(string path)
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{
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return new DiscDirectoryInfo(this, path);
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}
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/// <summary>
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/// Gets an object representing a possible file system object (file or directory).
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/// </summary>
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/// <param name="path">The file system path.</param>
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/// <returns>The representing object.</returns>
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/// <remarks>The file system object does not need to exist.</remarks>
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public virtual DiscFileSystemInfo GetFileSystemInfo(string path)
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{
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return new DiscFileSystemInfo(this, path);
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}
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/// <summary>
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/// Reads the boot code of the file system into a byte array.
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/// </summary>
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/// <returns>The boot code, or <c>null</c> if not available.</returns>
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public virtual byte[] ReadBootCode()
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{
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return null;
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}
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/// <summary>
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/// Size of the Filesystem in bytes
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/// </summary>
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public abstract long Size { get; }
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/// <summary>
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/// Used space of the Filesystem in bytes
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/// </summary>
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public abstract long UsedSpace { get; }
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/// <summary>
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/// Available space of the Filesystem in bytes
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/// </summary>
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public abstract long AvailableSpace { get; }
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#region IDisposable Members
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/// <summary>
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/// Disposes of this instance, releasing all resources.
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/// </summary>
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public void Dispose()
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{
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Dispose(true);
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GC.SuppressFinalize(this);
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}
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/// <summary>
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/// Disposes of this instance.
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/// </summary>
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/// <param name="disposing">The value <c>true</c> if Disposing.</param>
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protected virtual void Dispose(bool disposing) {}
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#endregion
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}
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}
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