mirror of
https://github.com/GreemDev/Ryujinx
synced 2024-12-04 23:42:10 +01:00
116 lines
3.2 KiB
C#
116 lines
3.2 KiB
C#
using Ryujinx.HLE.OsHle.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.OsHle.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> m_Commands;
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public override IReadOnlyDictionary<int, ServiceProcessRequest> Commands => m_Commands;
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private List<string> DirectoryEntries;
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private int CurrentItemIndex;
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public event EventHandler<EventArgs> Disposed;
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public string HostPath { get; private set; }
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public IDirectory(string HostPath, int Flags)
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{
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m_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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this.HostPath = HostPath;
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DirectoryEntries = new List<string>();
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if ((Flags & 1) != 0)
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{
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DirectoryEntries.AddRange(Directory.GetDirectories(HostPath));
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}
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if ((Flags & 2) != 0)
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{
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DirectoryEntries.AddRange(Directory.GetFiles(HostPath));
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}
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CurrentItemIndex = 0;
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}
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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, string FullPath)
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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(FullPath));
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Context.Memory.WriteBytes(Position, NameBuffer);
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int Type = 0;
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long Size = 0;
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if (File.Exists(FullPath))
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{
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Type = 1;
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Size = new FileInfo(FullPath).Length;
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}
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Context.Memory.WriteInt32(Position + 0x300, 0); //Padding?
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Context.Memory.WriteInt32(Position + 0x304, Type);
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Context.Memory.WriteInt64(Position + 0x308, Size);
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}
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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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