update demos for nice_kill

c_os/user/demo/ArrayDemo.h

@@ -9,9 +9,7 @@ private:
     ArrayDemo(const ArrayDemo& copy) = delete;
 
 public:
-    ArrayDemo() {
-        kout << "Initialized ArrayDemo" << endl;
-    }
+    ArrayDemo() : Thread("ArrayDemo") {}
 
     void run() override;
 };

c_os/user/demo/BlueScreenDemo.h

@@ -9,12 +9,9 @@ private:
     BlueScreenDemo(const BlueScreenDemo& copy) = delete;
 
 public:
-    BlueScreenDemo() {
-        kout << "Initialized BlueScreenDemo" << endl;
-    }
+    BlueScreenDemo() : Thread("BlueScreenDemo") {}
 
     void run() override;
 };
 
-
 #endif

c_os/user/demo/HeapDemo.h

@@ -25,9 +25,7 @@ private:
     HeapDemo(const HeapDemo& copy) = delete;
 
 public:
-    HeapDemo() {
-        kout << "Initialized HeapDemo" << endl;
-    }
+    HeapDemo() : Thread("HeapDemo") {}
 
     void run() override;
 };

c_os/user/demo/KeyboardDemo.cc

@@ -24,8 +24,11 @@ void KeyboardDemo::run() {
     kout << "\nInput: ";
     kout.flush();
 
-    while (true) {
+    while (running) {
         kout << listener.waitForKeyEvent();
         kout.flush();
     }
+
+    kout.unlock();
+    scheduler.exit();
 }

c_os/user/demo/KeyboardDemo.h

@@ -22,16 +22,20 @@ private:
     KeyEventListener listener;
 
 public:
-    KeyboardDemo() : listener(this->tid) {
-        log << INFO << "Initialized KeyboardDemo with ID: " << dec << this->tid << endl;
+    KeyboardDemo() : Thread("KeyboardDemo"), listener(this->tid) {
         kevman.subscribe(this->listener);
     }
 
     // Base class destructor will be called automatically
     ~KeyboardDemo() override {
-        log << INFO << "Uninitialized KeyboardDemo" << endl;
+        if (running) {
+            // NOTE: If the thread was exited nicely it can unlock before destructor,
+            //       but on forced kill kout has to be unlocked in the destructor.
+            //       This is bad since it could release the lock although some other
+            //       thread set it (so use nice_kill)
+            kout.unlock();
+        }
         kevman.unsubscribe(this->listener);
-        kout.unlock();
     }
 
     void run() override;

c_os/user/demo/PCSPKdemo.h

@@ -11,9 +11,7 @@ private:
     void (PCSPK::*melody)(void);  // Allow to pass a melody to play when initializing the demo
 
 public:
-    PCSPKdemo(void (PCSPK::*melody)(void)) : melody(melody) {
-        kout << "Initialized PCSPKdemo" << endl;
-    }
+    PCSPKdemo(void (PCSPK::*melody)(void)) : Thread("PCSPKdemo"), melody(melody) {}
 
     ~PCSPKdemo() override {
         pcspk.off();

c_os/user/demo/PreemptiveThreadDemo.cc

@@ -3,7 +3,7 @@
 void PreemptiveLoopThread::run() {
     int cnt = 0;
 
-    while (true) {
+    while (running) {
         // Basic synchronization by semaphore
         kout.lock();
 
@@ -13,6 +13,8 @@ void PreemptiveLoopThread::run() {
 
         kout.unlock();
     }
+
+    scheduler.exit();
 }
 
 void PreemptiveThreadDemo::run() {

c_os/user/demo/PreemptiveThreadDemo.h

@@ -12,7 +12,7 @@ private:
 
 public:
     // Gibt der Loop einen Stack und eine Id.
-    PreemptiveLoopThread(int i) : id(i) {}
+    PreemptiveLoopThread(int i) : Thread("LoopThread"), id(i) {}
 
     // Zaehlt einen Zaehler hoch und gibt ihn auf dem Bildschirm aus.
     void run() override;
@@ -25,9 +25,7 @@ private:
     unsigned int number_of_threads;
 
 public:
-    PreemptiveThreadDemo(unsigned int n) : number_of_threads(n) {
-        kout << "Initialized PreemptiveThreadDemo" << endl;
-    }
+    PreemptiveThreadDemo(unsigned int n) : Thread("PreemptiveThreadDemo"), number_of_threads(n) {}
 
     // Thread-Startmethode
     void run() override;

c_os/user/demo/SmartPointerDemo.h

@@ -8,9 +8,7 @@ private:
     SmartPointerDemo(const SmartPointerDemo& copy) = delete;
 
 public:
-    SmartPointerDemo() {
-        kout << "Initialized SmartPointerDemo" << endl;
-    }
+    SmartPointerDemo() : Thread("SmartPointerDemo") {}
 
     void run() override;
 };

c_os/user/demo/TextDemo.h

@@ -19,9 +19,7 @@ private:
     TextDemo(const TextDemo& copy) = delete;
 
 public:
-    TextDemo() {
-        log << INFO << "Initialized TextDemo" << endl;
-    }
+    TextDemo() : Thread("TextDemo") {}
 
     void run() override;
 };

c_os/user/demo/VBEdemo.cc

@@ -102,6 +102,8 @@ void VBEdemo::run() {
     drawBitmap();
     drawFonts();
 
+    while (running) {}
+
     // selbst terminieren
-    // scheduler.exit();
+    scheduler.exit();
 }

c_os/user/demo/VBEdemo.h

@@ -24,9 +24,7 @@ private:
 
 public:
     // Gib dem Anwendungsthread einen Stack.
-    VBEdemo() {
-        kout << "Initialized VBEdemo" << endl;
-    }
+    VBEdemo() : Thread("VBEdemo") {}
 
     ~VBEdemo() override {
         vesa.initTextMode();

c_os/user/demo/VectorDemo.h

@@ -10,9 +10,7 @@ private:
     VectorDemo(const VectorDemo& copy) = delete;
 
 public:
-    VectorDemo() {
-        kout << "Initialized VectorDemo" << endl;
-    }
+    VectorDemo() : Thread("VectorDemo") {}
 
     void run() override;
 };