Implement many objects, improve logging. (#42)

* Implement many objects, improve logging.

Change and rename folders of Services
Add Logging of IpcMessage.
Add "lm" Log Service.
Parse Errors of SetTerminateResult
Add Svc Calls.
Add many object implementations.

* Corrections

Forgotten Debug Conf

* Corrections 2

* Corrections 3

* Corrections 4

1 files changed, 383 insertions, 0 deletions

diff --git a/Ryujinx.Core/OsHle/Services/FspSrv/IFileSystem.cs b/Ryujinx.Core/OsHle/Services/FspSrv/IFileSystem.cs
new file mode 100644
index 00000000..ee9de8bc
--- /dev/null
+++ b/Ryujinx.Core/OsHle/Services/FspSrv/IFileSystem.cs
@@ -0,0 +1,383 @@
+using ChocolArm64.Memory;
+using Ryujinx.Core.OsHle.Ipc;
+using System;
+using System.Collections.Generic;
+using System.IO;
+
+using static Ryujinx.Core.OsHle.IpcServices.ErrorCode;
+using static Ryujinx.Core.OsHle.IpcServices.ObjHelper;
+
+namespace Ryujinx.Core.OsHle.IpcServices.FspSrv
+{
+    class IFileSystem : IIpcService
+    {
+        private Dictionary<int, ServiceProcessRequest> m_Commands;
+
+        public IReadOnlyDictionary<int, ServiceProcessRequest> Commands => m_Commands;
+
+        private HashSet<string> OpenPaths;
+
+        private string Path;
+
+        public IFileSystem(string Path)
+        {
+            m_Commands = new Dictionary<int, ServiceProcessRequest>()
+            {
+                {  0, CreateFile                 },
+                {  1, DeleteFile                 },
+                {  2, CreateDirectory            },
+                {  3, DeleteDirectory            },
+                {  4, DeleteDirectoryRecursively },
+                {  5, RenameFile                 },
+                {  6, RenameDirectory            },
+                {  7, GetEntryType               },
+                {  8, OpenFile                   },
+                {  9, OpenDirectory              },
+                { 10, Commit                     },
+                { 11, GetFreeSpaceSize           },
+                { 12, GetTotalSpaceSize          },
+                //{ 13, CleanDirectoryRecursively  },
+                //{ 14, GetFileTimeStampRaw        }
+            };
+
+            OpenPaths = new HashSet<string>();
+
+            this.Path = Path;
+        }
+
+        public long CreateFile(ServiceCtx Context)
+        {
+            long Position = Context.Request.PtrBuff[0].Position;
+
+            string Name = AMemoryHelper.ReadAsciiString(Context.Memory, Position);
+
+            long Mode = Context.RequestData.ReadInt64();
+            int  Size = Context.RequestData.ReadInt32();
+
+            string FileName = Context.Ns.VFs.GetFullPath(Path, Name);
+
+            if (FileName == null)
+            {
+                return MakeError(ErrorModule.Fs, FsErr.PathDoesNotExist);
+            }
+
+            if (File.Exists(FileName))
+            {
+                return MakeError(ErrorModule.Fs, FsErr.PathAlreadyExists);
+            }
+
+            if (IsPathAlreadyInUse(FileName))
+            {
+                return MakeError(ErrorModule.Fs, FsErr.PathAlreadyInUse);
+            }
+
+            using (FileStream NewFile = File.Create(FileName))
+            {
+                NewFile.SetLength(Size);
+            }
+
+            return 0;
+        }
+
+        public long DeleteFile(ServiceCtx Context)
+        {
+            long Position = Context.Request.PtrBuff[0].Position;
+
+            string Name = AMemoryHelper.ReadAsciiString(Context.Memory, Position);
+
+            string FileName = Context.Ns.VFs.GetFullPath(Path, Name);
+
+            if (!File.Exists(FileName))
+            {
+                return MakeError(ErrorModule.Fs, FsErr.PathDoesNotExist);
+            }
+
+            if (IsPathAlreadyInUse(FileName))
+            {
+                return MakeError(ErrorModule.Fs, FsErr.PathAlreadyInUse);
+            }
+
+            File.Delete(FileName);
+
+            return 0;
+        }
+
+        public long CreateDirectory(ServiceCtx Context)
+        {
+            long Position = Context.Request.PtrBuff[0].Position;
+
+            string Name = AMemoryHelper.ReadAsciiString(Context.Memory, Position);
+
+            string DirName = Context.Ns.VFs.GetFullPath(Path, Name);
+
+            if (DirName == null)
+            {
+                return MakeError(ErrorModule.Fs, FsErr.PathDoesNotExist);
+            }
+
+            if (Directory.Exists(DirName))
+            {
+                return MakeError(ErrorModule.Fs, FsErr.PathAlreadyExists);
+            }
+
+            if (IsPathAlreadyInUse(DirName))
+            {
+                return MakeError(ErrorModule.Fs, FsErr.PathAlreadyInUse);
+            }
+
+            Directory.CreateDirectory(DirName);
+
+            return 0;
+        }
+
+        public long DeleteDirectory(ServiceCtx Context)
+        {
+            return DeleteDirectory(Context, false);
+        }
+
+        public long DeleteDirectoryRecursively(ServiceCtx Context)
+        {
+            return DeleteDirectory(Context, true);
+        }
+
+        private long DeleteDirectory(ServiceCtx Context, bool Recursive)
+        {
+            long Position = Context.Request.PtrBuff[0].Position;
+
+            string Name = AMemoryHelper.ReadAsciiString(Context.Memory, Position);
+
+            string DirName = Context.Ns.VFs.GetFullPath(Path, Name);
+
+            if (!Directory.Exists(DirName))
+            {
+                return MakeError(ErrorModule.Fs, FsErr.PathDoesNotExist);
+            }
+
+            if (IsPathAlreadyInUse(DirName))
+            {
+                return MakeError(ErrorModule.Fs, FsErr.PathAlreadyInUse);
+            }
+
+            Directory.Delete(DirName, Recursive);
+
+            return 0;
+        }
+
+        public long RenameFile(ServiceCtx Context)
+        {
+            long OldPosition = Context.Request.PtrBuff[0].Position;
+            long NewPosition = Context.Request.PtrBuff[0].Position;
+
+            string OldName = AMemoryHelper.ReadAsciiString(Context.Memory, OldPosition);
+            string NewName = AMemoryHelper.ReadAsciiString(Context.Memory, NewPosition);
+
+            string OldFileName = Context.Ns.VFs.GetFullPath(Path, OldName);
+            string NewFileName = Context.Ns.VFs.GetFullPath(Path, NewName);
+
+            if (!File.Exists(OldFileName))
+            {
+                return MakeError(ErrorModule.Fs, FsErr.PathDoesNotExist);
+            }
+
+            if (File.Exists(NewFileName))
+            {
+                return MakeError(ErrorModule.Fs, FsErr.PathAlreadyExists);
+            }
+
+            if (IsPathAlreadyInUse(OldFileName))
+            {
+                return MakeError(ErrorModule.Fs, FsErr.PathAlreadyInUse);
+            }
+
+            File.Move(OldFileName, NewFileName);
+
+            return 0;
+        }
+
+        public long RenameDirectory(ServiceCtx Context)
+        {
+            long OldPosition = Context.Request.PtrBuff[0].Position;
+            long NewPosition = Context.Request.PtrBuff[0].Position;
+
+            string OldName = AMemoryHelper.ReadAsciiString(Context.Memory, OldPosition);
+            string NewName = AMemoryHelper.ReadAsciiString(Context.Memory, NewPosition);
+
+            string OldDirName = Context.Ns.VFs.GetFullPath(Path, OldName);
+            string NewDirName = Context.Ns.VFs.GetFullPath(Path, NewName);
+
+            if (!Directory.Exists(OldDirName))
+            {
+                return MakeError(ErrorModule.Fs, FsErr.PathDoesNotExist);
+            }
+
+            if (Directory.Exists(NewDirName))
+            {
+                return MakeError(ErrorModule.Fs, FsErr.PathAlreadyExists);
+            }
+
+            if (IsPathAlreadyInUse(OldDirName))
+            {
+                return MakeError(ErrorModule.Fs, FsErr.PathAlreadyInUse);
+            }
+
+            Directory.Move(OldDirName, NewDirName);
+
+            return 0;
+        }
+
+        public long GetEntryType(ServiceCtx Context)
+        {
+            long Position = Context.Request.PtrBuff[0].Position;
+
+            string Name = AMemoryHelper.ReadAsciiString(Context.Memory, Position);
+
+            string FileName = Context.Ns.VFs.GetFullPath(Path, Name);
+
+            if (File.Exists(FileName))
+            {
+                Context.ResponseData.Write(1);
+            }
+            else if (Directory.Exists(FileName))
+            {
+                Context.ResponseData.Write(0);
+            }
+            else
+            {
+                Context.ResponseData.Write(0);
+
+                return MakeError(ErrorModule.Fs, FsErr.PathDoesNotExist);
+            }
+
+            return 0;
+        }
+
+        public long OpenFile(ServiceCtx Context)
+        {
+            long Position = Context.Request.PtrBuff[0].Position;
+
+            int FilterFlags = Context.RequestData.ReadInt32();
+
+            string Name = AMemoryHelper.ReadAsciiString(Context.Memory, Position);
+
+            string FileName = Context.Ns.VFs.GetFullPath(Path, Name);
+
+            if (!File.Exists(FileName))
+            {
+                return MakeError(ErrorModule.Fs, FsErr.PathDoesNotExist);
+            }
+
+            if (IsPathAlreadyInUse(FileName))
+            {
+                return MakeError(ErrorModule.Fs, FsErr.PathAlreadyInUse);
+            }
+
+            FileStream Stream = new FileStream(FileName, FileMode.Open);
+
+            IFile FileInterface = new IFile(Stream, FileName);
+
+            FileInterface.Disposed += RemoveFileInUse;
+
+            lock (OpenPaths)
+            {
+                OpenPaths.Add(FileName);
+            }
+
+            MakeObject(Context, FileInterface);
+
+            return 0;
+        }
+
+        public long OpenDirectory(ServiceCtx Context)
+        {
+            long Position = Context.Request.PtrBuff[0].Position;
+
+            int FilterFlags = Context.RequestData.ReadInt32();
+
+            string Name = AMemoryHelper.ReadAsciiString(Context.Memory, Position);
+
+            string DirName = Context.Ns.VFs.GetFullPath(Path, Name);
+
+            if (!Directory.Exists(DirName))
+            {
+                return MakeError(ErrorModule.Fs, FsErr.PathDoesNotExist);
+            }
+
+            if (IsPathAlreadyInUse(DirName))
+            {
+                return MakeError(ErrorModule.Fs, FsErr.PathAlreadyInUse);
+            }
+
+            IDirectory DirInterface = new IDirectory(DirName, FilterFlags);
+
+            DirInterface.Disposed += RemoveDirectoryInUse;
+
+            lock (OpenPaths)
+            {
+                OpenPaths.Add(DirName);
+            }
+
+            MakeObject(Context, DirInterface);
+
+            return 0;
+        }
+
+        public long Commit(ServiceCtx Context)
+        {
+            return 0;
+        }
+
+        public long GetFreeSpaceSize(ServiceCtx Context)
+        {
+            long Position = Context.Request.PtrBuff[0].Position;
+
+            string Name = AMemoryHelper.ReadAsciiString(Context.Memory, Position);
+
+            Context.ResponseData.Write(Context.Ns.VFs.GetDrive().AvailableFreeSpace);
+
+            return 0;
+        }
+
+        public long GetTotalSpaceSize(ServiceCtx Context)
+        {
+            long Position = Context.Request.PtrBuff[0].Position;
+
+            string Name = AMemoryHelper.ReadAsciiString(Context.Memory, Position);
+
+            Context.ResponseData.Write(Context.Ns.VFs.GetDrive().TotalSize);
+
+            return 0;
+        }
+
+        private bool IsPathAlreadyInUse(string Path)
+        {
+            lock (OpenPaths)
+            {
+                return OpenPaths.Contains(Path);
+            }
+        }
+
+        private void RemoveFileInUse(object sender, EventArgs e)
+        {
+            IFile FileInterface = (IFile)sender;
+
+            lock (OpenPaths)
+            {
+                FileInterface.Disposed -= RemoveFileInUse;
+
+                OpenPaths.Remove(FileInterface.HostPath);
+            }
+        }
+
+        private void RemoveDirectoryInUse(object sender, EventArgs e)
+        {
+            IDirectory DirInterface = (IDirectory)sender;
+
+            lock (OpenPaths)
+            {
+                DirInterface.Disposed -= RemoveDirectoryInUse;
+
+                OpenPaths.Remove(DirInterface.HostPath);
+            }
+        }
+    }
+}
\ No newline at end of file