Refactoring HOS folder structure (#771)

* Refactoring HOS folder structure

Refactoring HOS folder structure:

- Added some subfolders when needed (Following structure decided in private).
- Added some `Types` folders when needed.
- Little cleanup here and there.
- Add services placeholders for every HOS services (close #766 and #753).

* Remove Types namespaces

3 files changed, 0 insertions, 422 deletions

diff --git a/Ryujinx.HLE/HOS/Services/Sfdnsres/GaiError.cs b/Ryujinx.HLE/HOS/Services/Sfdnsres/GaiError.cs
deleted file mode 100644
index dc724b4d..00000000
--- a/Ryujinx.HLE/HOS/Services/Sfdnsres/GaiError.cs
+++ /dev/null
@@ -1,22 +0,0 @@
-namespace Ryujinx.HLE.HOS.Services.Sfdnsres
-{
-    enum GaiError
-    {
-        Success,
-        AddressFamily,
-        Again,
-        BadFlags,
-        Fail,
-        Family,
-        Memory,
-        NoData,
-        NoName,
-        Service,
-        SocketType,
-        System,
-        BadHints,
-        Protocol,
-        Overflow,
-        Max
-    }
-}
\ No newline at end of file
diff --git a/Ryujinx.HLE/HOS/Services/Sfdnsres/IResolver.cs b/Ryujinx.HLE/HOS/Services/Sfdnsres/IResolver.cs
deleted file mode 100644
index 0e42ee3b..00000000
--- a/Ryujinx.HLE/HOS/Services/Sfdnsres/IResolver.cs
+++ /dev/null
@@ -1,387 +0,0 @@
-using Ryujinx.Common.Logging;
-using System;
-using System.Collections.Generic;
-using System.Net;
-using System.Net.Sockets;
-using System.Text;
-
-namespace Ryujinx.HLE.HOS.Services.Sfdnsres
-{
-    [Service("sfdnsres")]
-    class IResolver : IpcService
-    {
-        public IResolver(ServiceCtx context) { }
-
-        private long SerializeHostEnt(ServiceCtx context, IPHostEntry hostEntry, List<IPAddress> addresses = null)
-        {
-            long originalBufferPosition = context.Request.ReceiveBuff[0].Position;
-            long bufferPosition         = originalBufferPosition;
-            long bufferSize             = context.Request.ReceiveBuff[0].Size;
-
-            string hostName = hostEntry.HostName + '\0';
-
-            // h_name
-            context.Memory.WriteBytes(bufferPosition, Encoding.ASCII.GetBytes(hostName));
-            bufferPosition += hostName.Length;
-
-            // h_aliases list size
-            context.Memory.WriteInt32(bufferPosition, IPAddress.HostToNetworkOrder(hostEntry.Aliases.Length));
-            bufferPosition += 4;
-
-            // Actual aliases
-            foreach (string alias in hostEntry.Aliases)
-            {
-                context.Memory.WriteBytes(bufferPosition, Encoding.ASCII.GetBytes(alias + '\0'));
-                bufferPosition += alias.Length + 1;
-            }
-
-            // h_addrtype but it's a short (also only support IPv4)
-            context.Memory.WriteInt16(bufferPosition, IPAddress.HostToNetworkOrder((short)2));
-            bufferPosition += 2;
-
-            // h_length but it's a short
-            context.Memory.WriteInt16(bufferPosition, IPAddress.HostToNetworkOrder((short)4));
-            bufferPosition += 2;
-
-            // Ip address count, we can only support ipv4 (blame Nintendo)
-            context.Memory.WriteInt32(bufferPosition, addresses != null ? IPAddress.HostToNetworkOrder(addresses.Count) : 0);
-            bufferPosition += 4;
-
-            if (addresses != null)
-            {
-                foreach (IPAddress ip in addresses)
-                {
-                    context.Memory.WriteInt32(bufferPosition, IPAddress.HostToNetworkOrder(BitConverter.ToInt32(ip.GetAddressBytes(), 0)));
-                    bufferPosition += 4;
-                }
-            }
-
-            return bufferPosition - originalBufferPosition;
-        }
-
-        private string GetGaiStringErrorFromErrorCode(GaiError errorCode)
-        {
-            if (errorCode > GaiError.Max)
-            {
-                errorCode = GaiError.Max;
-            }
-
-            switch (errorCode)
-            {
-                case GaiError.AddressFamily:
-                    return "Address family for hostname not supported";
-                case GaiError.Again:
-                    return "Temporary failure in name resolution";
-                case GaiError.BadFlags:
-                    return "Invalid value for ai_flags";
-                case GaiError.Fail:
-                    return "Non-recoverable failure in name resolution";
-                case GaiError.Family:
-                    return "ai_family not supported";
-                case GaiError.Memory:
-                    return "Memory allocation failure";
-                case GaiError.NoData:
-                    return "No address associated with hostname";
-                case GaiError.NoName:
-                    return "hostname nor servname provided, or not known";
-                case GaiError.Service:
-                    return "servname not supported for ai_socktype";
-                case GaiError.SocketType:
-                    return "ai_socktype not supported";
-                case GaiError.System:
-                    return "System error returned in errno";
-                case GaiError.BadHints:
-                    return "Invalid value for hints";
-                case GaiError.Protocol:
-                    return "Resolved protocol is unknown";
-                case GaiError.Overflow:
-                    return "Argument buffer overflow";
-                case GaiError.Max:
-                    return "Unknown error";
-                default:
-                    return "Success";
-            }
-        }
-
-        private string GetHostStringErrorFromErrorCode(NetDbError errorCode)
-        {
-            if (errorCode <= NetDbError.Internal)
-            {
-                return "Resolver internal error";
-            }
-
-            switch (errorCode)
-            {
-                case NetDbError.Success:
-                    return "Resolver Error 0 (no error)";
-                case NetDbError.HostNotFound:
-                    return "Unknown host";
-                case NetDbError.TryAgain:
-                    return "Host name lookup failure";
-                case NetDbError.NoRecovery:
-                    return "Unknown server error";
-                case NetDbError.NoData:
-                    return "No address associated with name";
-                default:
-                    return "Unknown resolver error";
-            }
-        }
-
-        private List<IPAddress> GetIpv4Addresses(IPHostEntry hostEntry)
-        {
-            List<IPAddress> result = new List<IPAddress>();
-            foreach (IPAddress ip in hostEntry.AddressList)
-            {
-                if (ip.AddressFamily == AddressFamily.InterNetwork)
-                    result.Add(ip);
-            }
-            return result;
-        }
-
-        [Command(0)]
-        // SetDnsAddressesPrivate(u32, buffer<unknown, 5, 0>)
-        public ResultCode SetDnsAddressesPrivate(ServiceCtx context)
-        {
-            uint unknown0       = context.RequestData.ReadUInt32();
-            long bufferPosition = context.Request.SendBuff[0].Position;
-            long bufferSize     = context.Request.SendBuff[0].Size;
-
-            // TODO: This is stubbed in 2.0.0+, reverse 1.0.0 version for the sake completeness.
-            Logger.PrintStub(LogClass.ServiceSfdnsres, new { unknown0 });
-
-            return ResultCode.NotAllocated;
-        }
-
-        [Command(1)]
-        // GetDnsAddressPrivate(u32) -> buffer<unknown, 6, 0>
-        public ResultCode GetDnsAddressesPrivate(ServiceCtx context)
-        {
-            uint unknown0 = context.RequestData.ReadUInt32();
-
-            // TODO: This is stubbed in 2.0.0+, reverse 1.0.0 version for the sake completeness.
-            Logger.PrintStub(LogClass.ServiceSfdnsres, new { unknown0 });
-
-            return ResultCode.NotAllocated;
-        }
-
-        [Command(2)]
-        // GetHostByName(u8, u32, u64, pid, buffer<unknown, 5, 0>) -> (u32, u32, u32, buffer<unknown, 6, 0>)
-        public ResultCode GetHostByName(ServiceCtx context)
-        {
-            byte[] rawName = context.Memory.ReadBytes(context.Request.SendBuff[0].Position, context.Request.SendBuff[0].Size);
-            string name    = Encoding.ASCII.GetString(rawName).TrimEnd('\0');
-
-            // TODO: use params
-            bool  enableNsdResolve = context.RequestData.ReadInt32() == 1;
-            int   timeOut          = context.RequestData.ReadInt32();
-            ulong pidPlaceholder   = context.RequestData.ReadUInt64();
-
-            IPHostEntry hostEntry = null;
-
-            NetDbError netDbErrorCode = NetDbError.Success;
-            GaiError   errno          = GaiError.Overflow;
-            long       serializedSize = 0;
-
-            if (name.Length <= 255)
-            {
-                try
-                {
-                    hostEntry = Dns.GetHostEntry(name);
-                }
-                catch (SocketException exception)
-                {
-                    netDbErrorCode = NetDbError.Internal;
-
-                    if (exception.ErrorCode == 11001)
-                    {
-                        netDbErrorCode = NetDbError.HostNotFound;
-                        errno = GaiError.NoData;
-                    }
-                    else if (exception.ErrorCode == 11002)
-                    {
-                        netDbErrorCode = NetDbError.TryAgain;
-                    }
-                    else if (exception.ErrorCode == 11003)
-                    {
-                        netDbErrorCode = NetDbError.NoRecovery;
-                    }
-                    else if (exception.ErrorCode == 11004)
-                    {
-                        netDbErrorCode = NetDbError.NoData;
-                    }
-                    else if (exception.ErrorCode == 10060)
-                    {
-                        errno = GaiError.Again;
-                    }
-                }
-            }
-            else
-            {
-                netDbErrorCode = NetDbError.HostNotFound;
-            }
-
-            if (hostEntry != null)
-            {
-                errno = GaiError.Success;
-
-                List<IPAddress> addresses = GetIpv4Addresses(hostEntry);
-
-                if (addresses.Count == 0)
-                {
-                    errno          = GaiError.NoData;
-                    netDbErrorCode = NetDbError.NoAddress;
-                }
-                else
-                {
-                    serializedSize = SerializeHostEnt(context, hostEntry, addresses);
-                }
-            }
-
-            context.ResponseData.Write((int)netDbErrorCode);
-            context.ResponseData.Write((int)errno);
-            context.ResponseData.Write(serializedSize);
-
-            return ResultCode.Success;
-        }
-
-        [Command(3)]
-        // GetHostByAddr(u32, u32, u32, u64, pid, buffer<unknown, 5, 0>) -> (u32, u32, u32, buffer<unknown, 6, 0>)
-        public ResultCode GetHostByAddress(ServiceCtx context)
-        {
-            byte[] rawIp = context.Memory.ReadBytes(context.Request.SendBuff[0].Position, context.Request.SendBuff[0].Size);
-
-            // TODO: use params
-            uint  socketLength   = context.RequestData.ReadUInt32();
-            uint  type           = context.RequestData.ReadUInt32();
-            int   timeOut        = context.RequestData.ReadInt32();
-            ulong pidPlaceholder = context.RequestData.ReadUInt64();
-
-            IPHostEntry hostEntry = null;
-
-            NetDbError netDbErrorCode = NetDbError.Success;
-            GaiError   errno          = GaiError.AddressFamily;
-            long       serializedSize = 0;
-
-            if (rawIp.Length == 4)
-            {
-                try
-                {
-                    IPAddress address = new IPAddress(rawIp);
-
-                    hostEntry = Dns.GetHostEntry(address);
-                }
-                catch (SocketException exception)
-                {
-                    netDbErrorCode = NetDbError.Internal;
-                    if (exception.ErrorCode == 11001)
-                    {
-                        netDbErrorCode = NetDbError.HostNotFound;
-                        errno = GaiError.NoData;
-                    }
-                    else if (exception.ErrorCode == 11002)
-                    {
-                        netDbErrorCode = NetDbError.TryAgain;
-                    }
-                    else if (exception.ErrorCode == 11003)
-                    {
-                        netDbErrorCode = NetDbError.NoRecovery;
-                    }
-                    else if (exception.ErrorCode == 11004)
-                    {
-                        netDbErrorCode = NetDbError.NoData;
-                    }
-                    else if (exception.ErrorCode == 10060)
-                    {
-                        errno = GaiError.Again;
-                    }
-                }
-            }
-            else
-            {
-                netDbErrorCode = NetDbError.NoAddress;
-            }
-
-            if (hostEntry != null)
-            {
-                errno = GaiError.Success;
-                serializedSize = SerializeHostEnt(context, hostEntry, GetIpv4Addresses(hostEntry));
-            }
-
-            context.ResponseData.Write((int)netDbErrorCode);
-            context.ResponseData.Write((int)errno);
-            context.ResponseData.Write(serializedSize);
-
-            return ResultCode.Success;
-        }
-
-        [Command(4)]
-        // GetHostStringError(u32) -> buffer<unknown, 6, 0>
-        public ResultCode GetHostStringError(ServiceCtx context)
-        {
-            ResultCode resultCode  = ResultCode.NotAllocated;
-            NetDbError errorCode   = (NetDbError)context.RequestData.ReadInt32();
-            string     errorString = GetHostStringErrorFromErrorCode(errorCode);
-
-            if (errorString.Length + 1 <= context.Request.ReceiveBuff[0].Size)
-            {
-                resultCode = 0;
-                context.Memory.WriteBytes(context.Request.ReceiveBuff[0].Position, Encoding.ASCII.GetBytes(errorString + '\0'));
-            }
-
-            return resultCode;
-        }
-
-        [Command(5)]
-        // GetGaiStringError(u32) -> buffer<unknown, 6, 0>
-        public ResultCode GetGaiStringError(ServiceCtx context)
-        {
-            ResultCode resultCode  = ResultCode.NotAllocated;
-            GaiError   errorCode   = (GaiError)context.RequestData.ReadInt32();
-            string     errorString = GetGaiStringErrorFromErrorCode(errorCode);
-
-            if (errorString.Length + 1 <= context.Request.ReceiveBuff[0].Size)
-            {
-                resultCode = 0;
-                context.Memory.WriteBytes(context.Request.ReceiveBuff[0].Position, Encoding.ASCII.GetBytes(errorString + '\0'));
-            }
-
-            return resultCode;
-        }
-
-        [Command(8)]
-        // RequestCancelHandle(u64, pid) -> u32
-        public ResultCode RequestCancelHandle(ServiceCtx context)
-        {
-            ulong unknown0 = context.RequestData.ReadUInt64();
-
-            context.ResponseData.Write(0);
-
-            Logger.PrintStub(LogClass.ServiceSfdnsres, new { unknown0 });
-
-            return ResultCode.Success;
-        }
-
-        [Command(9)]
-        // CancelSocketCall(u32, u64, pid)
-        public ResultCode CancelSocketCall(ServiceCtx context)
-        {
-            uint  unknown0 = context.RequestData.ReadUInt32();
-            ulong unknown1 = context.RequestData.ReadUInt64();
-
-            Logger.PrintStub(LogClass.ServiceSfdnsres, new { unknown0, unknown1 });
-
-            return ResultCode.Success;
-        }
-
-        [Command(11)]
-        // ClearDnsAddresses(u32)
-        public ResultCode ClearDnsAddresses(ServiceCtx context)
-        {
-            uint unknown0 = context.RequestData.ReadUInt32();
-
-            Logger.PrintStub(LogClass.ServiceSfdnsres, new { unknown0 });
-
-            return ResultCode.Success;
-        }
-    }
-}
\ No newline at end of file
diff --git a/Ryujinx.HLE/HOS/Services/Sfdnsres/NetDBError.cs b/Ryujinx.HLE/HOS/Services/Sfdnsres/NetDBError.cs
deleted file mode 100644
index 95ef7419..00000000
--- a/Ryujinx.HLE/HOS/Services/Sfdnsres/NetDBError.cs
+++ /dev/null
@@ -1,13 +0,0 @@
-namespace Ryujinx.HLE.HOS.Services.Sfdnsres
-{
-    enum NetDbError
-    {
-        Internal = -1,
-        Success,
-        HostNotFound,
-        TryAgain,
-        NoRecovery,
-        NoData,
-        NoAddress = NoData
-    }
-}
\ No newline at end of file