Cleanup the chatllm properly.

gpt4all-chat/chat.cpp

@@ -11,6 +11,17 @@ Chat::Chat(QObject *parent)
     , m_responseInProgress(false)
     , m_creationDate(QDateTime::currentSecsSinceEpoch())
     , m_llmodel(new ChatLLM(this))
+{
+    connectLLM();
+}
+
+Chat::~Chat()
+{
+    delete m_llmodel;
+    m_llmodel = nullptr;
+}
+
+void Chat::connectLLM()
 {
     // Should be in same thread
     connect(Download::globalInstance(), &Download::modelListChanged, this, &Chat::modelListChanged, Qt::DirectConnection);

gpt4all-chat/chat.h

@@ -25,6 +25,8 @@ class Chat : public QObject
 
 public:
     explicit Chat(QObject *parent = nullptr);
+    virtual ~Chat();
+    void connectLLM();
 
     QString id() const { return m_id; }
     QString name() const { return m_userName.isEmpty() ? m_name : m_userName; }

gpt4all-chat/chatllm.cpp

@@ -53,6 +53,13 @@ ChatLLM::ChatLLM(Chat *parent)
     m_llmThread.start();
 }
 
+ChatLLM::~ChatLLM()
+{
+    m_llmThread.quit();
+    m_llmThread.wait();
+    delete m_llmodel;
+}
+
 bool ChatLLM::loadDefaultModel()
 {
     const QList<QString> models = m_chat->modelList();

gpt4all-chat/chatllm.h

@@ -24,6 +24,7 @@ public:
     };
 
     ChatLLM(Chat *parent);
+    virtual ~ChatLLM();
 
     bool isModelLoaded() const;
     void regenerateResponse();