IPC refactor part 3+4: New server HIPC message processor (#4188)

* IPC refactor part 3 + 4: New server HIPC message processor with source generator based serialization

* Make types match on calls to AlignUp/AlignDown

* Formatting

* Address some PR feedback

* Move BitfieldExtensions to Ryujinx.Common.Utilities and consolidate implementations

* Rename Reader/Writer to SpanReader/SpanWriter and move to Ryujinx.Common.Memory

* Implement EventType

* Address more PR feedback

* Log request processing errors since they are not normal

* Rename waitable to multiwait and add missing lock

* PR feedback

* Ac_K PR feedback

1 files changed, 58 insertions, 0 deletions

diff --git a/Ryujinx.Horizon.Generators/Hipc/HipcSyntaxReceiver.cs b/Ryujinx.Horizon.Generators/Hipc/HipcSyntaxReceiver.cs
new file mode 100644
index 00000000..4b998dbe
--- /dev/null
+++ b/Ryujinx.Horizon.Generators/Hipc/HipcSyntaxReceiver.cs
@@ -0,0 +1,58 @@
+using Microsoft.CodeAnalysis;
+using Microsoft.CodeAnalysis.CSharp;
+using Microsoft.CodeAnalysis.CSharp.Syntax;
+using System.Collections.Generic;
+using System.Linq;
+
+namespace Ryujinx.Horizon.Generators.Hipc
+{
+    class HipcSyntaxReceiver : ISyntaxReceiver
+    {
+        public List<CommandInterface> CommandInterfaces { get; }
+
+        public HipcSyntaxReceiver()
+        {
+            CommandInterfaces = new List<CommandInterface>();
+        }
+
+        public void OnVisitSyntaxNode(SyntaxNode syntaxNode)
+        {
+            if (syntaxNode is ClassDeclarationSyntax classDeclaration)
+            {
+                if (!classDeclaration.Modifiers.Any(SyntaxKind.PartialKeyword) || classDeclaration.BaseList == null)
+                {
+                    return;
+                }
+
+                CommandInterface commandInterface = new CommandInterface(classDeclaration);
+
+                foreach (var memberDeclaration in classDeclaration.Members)
+                {
+                    if (memberDeclaration is MethodDeclarationSyntax methodDeclaration)
+                    {
+                        VisitMethod(commandInterface, methodDeclaration);
+                    }
+                }
+
+                CommandInterfaces.Add(commandInterface);
+            }
+        }
+
+        private void VisitMethod(CommandInterface commandInterface, MethodDeclarationSyntax methodDeclaration)
+        {
+            string attributeName = HipcGenerator.CommandAttributeName.Replace("Attribute", string.Empty);
+
+            if (methodDeclaration.AttributeLists.Count != 0)
+            {
+                foreach (var attributeList in methodDeclaration.AttributeLists)
+                {
+                    if (attributeList.Attributes.Any(x => x.Name.ToString().Contains(attributeName)))
+                    {
+                        commandInterface.CommandImplementations.Add(methodDeclaration);
+                        break;
+                    }
+                }
+            }
+        }
+    }
+}