mirror of
https://github.com/GreemDev/Ryujinx.git
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fb1d9493a3
* Rename enum fields * Naming conventions * Remove unneeded ".this" * Remove unneeded semicolons * Remove unused Usings * Don't use var * Remove unneeded enum underlying types * Explicitly label class visibility * Remove unneeded @ prefixes * Remove unneeded commas * Remove unneeded if expressions * Method doesn't use unsafe code * Remove unneeded casts * Initialized objects don't need an empty constructor * Remove settings from DotSettings * Revert "Explicitly label class visibility" This reverts commit ad5eb5787cc5b27a4631cd46ef5f551c4ae95e51. * Small changes * Revert external enum renaming * Changes from feedback * Apply previous refactorings to the merged code
113 lines
3.3 KiB
C#
113 lines
3.3 KiB
C#
using Ryujinx.HLE.FileSystem;
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using Ryujinx.HLE.HOS.Ipc;
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using System;
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using System.Collections.Generic;
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using System.IO;
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using System.Text;
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namespace Ryujinx.HLE.HOS.Services.FspSrv
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{
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class IDirectory : IpcService, IDisposable
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{
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private const int DirectoryEntrySize = 0x310;
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private Dictionary<int, ServiceProcessRequest> _commands;
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public override IReadOnlyDictionary<int, ServiceProcessRequest> Commands => _commands;
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private List<DirectoryEntry> _directoryEntries;
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private int _currentItemIndex;
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public event EventHandler<EventArgs> Disposed;
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public string DirectoryPath { get; private set; }
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private IFileSystemProvider _provider;
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public IDirectory(string directoryPath, int flags, IFileSystemProvider provider)
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{
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_commands = new Dictionary<int, ServiceProcessRequest>
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{
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{ 0, Read },
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{ 1, GetEntryCount }
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};
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_provider = provider;
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DirectoryPath = directoryPath;
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_directoryEntries = new List<DirectoryEntry>();
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if ((flags & 1) != 0)
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{
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_directoryEntries.AddRange(provider.GetDirectories(directoryPath));
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}
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if ((flags & 2) != 0)
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{
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_directoryEntries.AddRange(provider.GetFiles(directoryPath));
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}
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_currentItemIndex = 0;
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}
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// Read() -> (u64 count, buffer<nn::fssrv::sf::IDirectoryEntry, 6, 0> entries)
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public long Read(ServiceCtx context)
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{
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long bufferPosition = context.Request.ReceiveBuff[0].Position;
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long bufferLen = context.Request.ReceiveBuff[0].Size;
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int maxReadCount = (int)(bufferLen / DirectoryEntrySize);
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int count = Math.Min(_directoryEntries.Count - _currentItemIndex, maxReadCount);
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for (int index = 0; index < count; index++)
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{
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long position = bufferPosition + index * DirectoryEntrySize;
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WriteDirectoryEntry(context, position, _directoryEntries[_currentItemIndex++]);
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}
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context.ResponseData.Write((long)count);
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return 0;
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}
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private void WriteDirectoryEntry(ServiceCtx context, long position, DirectoryEntry entry)
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{
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for (int offset = 0; offset < 0x300; offset += 8)
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{
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context.Memory.WriteInt64(position + offset, 0);
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}
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byte[] nameBuffer = Encoding.UTF8.GetBytes(Path.GetFileName(entry.Path));
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context.Memory.WriteBytes(position, nameBuffer);
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context.Memory.WriteInt32(position + 0x300, 0); //Padding?
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context.Memory.WriteInt32(position + 0x304, (byte)entry.EntryType);
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context.Memory.WriteInt64(position + 0x308, entry.Size);
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}
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// GetEntryCount() -> u64
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public long GetEntryCount(ServiceCtx context)
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{
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context.ResponseData.Write((long)_directoryEntries.Count);
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return 0;
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}
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public void Dispose()
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{
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Dispose(true);
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}
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protected virtual void Dispose(bool disposing)
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{
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if (disposing)
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{
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Disposed?.Invoke(this, EventArgs.Empty);
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}
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}
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}
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}
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