Ryujinx/Ryujinx.HLE/HOS/Services/Fs/FileSystemProxy/IFile.cs

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using LibHac;
using LibHac.Fs;
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namespace Ryujinx.HLE.HOS.Services.Fs.FileSystemProxy
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{
class IFile : DisposableIpcService
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{
private LibHac.Fs.Fsa.IFile _baseFile;
public IFile(LibHac.Fs.Fsa.IFile baseFile)
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{
_baseFile = baseFile;
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}
[CommandHipc(0)]
// Read(u32 readOption, u64 offset, u64 size) -> (u64 out_size, buffer<u8, 0x46, 0> out_buf)
public ResultCode Read(ServiceCtx context)
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{
ulong position = context.Request.ReceiveBuff[0].Position;
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ReadOption readOption = new ReadOption(context.RequestData.ReadInt32());
context.RequestData.BaseStream.Position += 4;
long offset = context.RequestData.ReadInt64();
long size = context.RequestData.ReadInt64();
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byte[] data = new byte[size];
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Result result = _baseFile.Read(out long bytesRead, offset, data, readOption);
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context.Memory.Write(position, data);
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context.ResponseData.Write(bytesRead);
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return (ResultCode)result.Value;
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}
[CommandHipc(1)]
// Write(u32 writeOption, u64 offset, u64 size, buffer<u8, 0x45, 0>)
public ResultCode Write(ServiceCtx context)
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{
ulong position = context.Request.SendBuff[0].Position;
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WriteOption writeOption = new WriteOption(context.RequestData.ReadInt32());
context.RequestData.BaseStream.Position += 4;
long offset = context.RequestData.ReadInt64();
long size = context.RequestData.ReadInt64();
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byte[] data = new byte[size];
context.Memory.Read(position, data);
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return (ResultCode)_baseFile.Write(offset, data, writeOption).Value;
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}
[CommandHipc(2)]
// Flush()
public ResultCode Flush(ServiceCtx context)
{
return (ResultCode)_baseFile.Flush().Value;
}
[CommandHipc(3)]
// SetSize(u64 size)
public ResultCode SetSize(ServiceCtx context)
{
long size = context.RequestData.ReadInt64();
return (ResultCode)_baseFile.SetSize(size).Value;
}
[CommandHipc(4)]
// GetSize() -> u64 fileSize
public ResultCode GetSize(ServiceCtx context)
{
Result result = _baseFile.GetSize(out long size);
context.ResponseData.Write(size);
return (ResultCode)result.Value;
}
protected override void Dispose(bool isDisposing)
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{
if (isDisposing)
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{
_baseFile?.Dispose();
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}
}
}
}