From 4f2d69c30d86940cc592afcf70c3d965e1a9f299 Mon Sep 17 00:00:00 2001
From: Gustavo Carreno <guscarreno@gmail.com>
Date: Mon, 25 Sep 2023 19:21:57 +0100
Subject: [PATCH] feat: Added Critical Sections for the lists

---
 .../polykerma.dispatching.dispatcher.pas          | 15 ++++++++++-----
 .../polykerma.threading.threadprocessmessages.pas | 13 ++++++++-----
 2 files changed, 18 insertions(+), 10 deletions(-)

diff --git a/src/dispatching/polykerma.dispatching.dispatcher.pas b/src/dispatching/polykerma.dispatching.dispatcher.pas
index 00a319b..357d596 100644
--- a/src/dispatching/polykerma.dispatching.dispatcher.pas
+++ b/src/dispatching/polykerma.dispatching.dispatcher.pas
@@ -24,7 +24,6 @@ interface
 { TDispatcher }
   TDispatcher = class(TObject)
   private
-    FMessagesCriticalSection: TCriticalSection;
     FMessageList: TFPObjectList;
     FChannelsCriticalSection: TCriticalSection;
     FChannelList: TFPHashObjectList;
@@ -40,6 +39,7 @@   TDispatcher = class(TObject)
     function Register(const AChannel: String; const AModule: TModule): Boolean;
     procedure Run(const WaitFor: Boolean);
     procedure Terminate;
+
   published
   end;
   TDispatcherClass = class of TDispatcher;
@@ -52,7 +52,6 @@ constructor TDispatcher.Create;
 begin
   Debug({$I %FILE%}, {$I %LINE%}, 'Dispatcher Create');
   // Messages
-  FMessagesCriticalSection:= TCriticalSection.Create;
   FMessageList:= TFPObjectList.Create;
   FMessageList.OwnsObjects:= True;
   // Channels
@@ -83,7 +82,6 @@ destructor TDispatcher.Destroy;
   // Messages
   FMessageList.Clear;
   FMessageList.Free;
-  FMessagesCriticalSection.Free;
   inherited Destroy;
 end;
 
@@ -123,7 +121,9 @@ function TDispatcher.Register(const AChannel: String;
   except
     on E: Exception do
     begin
-      Error({$I %FILE%}, {$I %LINE%}, 'Dispatcher Register');
+      Error({$I %FILE%}, {$I %LINE%}, Format('Dispatcher Register: %s', [
+        E.Message
+      ]));
       Result:= False;
     end;
   end;
@@ -145,7 +145,12 @@ procedure TDispatcher.Post(const AMessage: TMessage);
   Debug({$I %FILE%}, {$I %LINE%}, Format('Dispatcher Post: %s', [
     AMessage.Channel
   ]));
-  FMessageList.Add(AMessage);
+  FThreadProcessMessages.MessagesCriticalSection.Acquire;
+  try
+    FMessageList.Add(AMessage);
+  finally
+    FThreadProcessMessages.MessagesCriticalSection.Release;
+  end;
 end;
 
 end.
diff --git a/src/threading/polykerma.threading.threadprocessmessages.pas b/src/threading/polykerma.threading.threadprocessmessages.pas
index d210534..7a1b0a6 100644
--- a/src/threading/polykerma.threading.threadprocessmessages.pas
+++ b/src/threading/polykerma.threading.threadprocessmessages.pas
@@ -24,7 +24,7 @@ interface
   TThreadProcessMessages = class(TThread)
   private
     FProcedureProcessMessages: TProcedureProcessMessages;
-    FListCriticalSection: TCriticalSection;
+    FMessagesCriticalSection: TCriticalSection;
     FMessageList: TFPObjectList;
   protected
     procedure Execute; override;
@@ -35,6 +35,9 @@   TThreadProcessMessages = class(TThread)
       const CreateSuspended: Boolean
     );
     destructor Destroy; override;
+
+    property MessagesCriticalSection: TCriticalSection
+      read FMessagesCriticalSection;
   published
   end;
   TThreadProcessingMessagesClass = class of TThreadProcessMessages;
@@ -51,7 +54,7 @@ constructor TThreadProcessMessages.Create(
 begin
   Debug({$I %FILE%}, {$I %LINE%}, 'Thread Process Messages Create');
   FProcedureProcessMessages:= AProcedureProcessMessages;
-  FListCriticalSection:= TCriticalSection.Create;
+  FMessagesCriticalSection:= TCriticalSection.Create;
   FMessageList:= AMessageList;
   inherited Create(CreateSuspended);
 end;
@@ -59,7 +62,7 @@ constructor TThreadProcessMessages.Create(
 destructor TThreadProcessMessages.Destroy;
 begin
   Debug({$I %FILE%}, {$I %LINE%}, 'Thread Process Messages Destroy');
-  FListCriticalSection.Free;
+  FMessagesCriticalSection.Free;
   inherited Destroy;
 end;
 
@@ -70,7 +73,7 @@ procedure TThreadProcessMessages.Execute;
   Debug({$I %FILE%}, {$I %LINE%}, 'Thread Process Messages Execute');
   while not Terminated do
   begin
-    FListCriticalSection.Acquire;
+    FMessagesCriticalSection.Acquire;
     try
       if FMessageList.Count > 0 then
       begin
@@ -81,7 +84,7 @@ procedure TThreadProcessMessages.Execute;
       end;
       Sleep(1);
     finally
-      FListCriticalSection.Release;
+      FMessagesCriticalSection.Release;
     end;
   end;
 end;