fixed really all bugs, for real

device/ps2controller.cc

@@ -122,10 +122,7 @@ bool fetch(Key &pressed) {
 
   pressed = key_decoder.decode(out_buffer);
 
-  if (pressed.alt() || pressed.ctrl() || !pressed.valid())
-    return false;
-  else
-    return true;
+  return true;
 }
 
 void setRepeatRate(Speed speed, Delay delay) {

device/textstream.h

@@ -20,7 +20,7 @@
  * \ref TextWindow and only implements the method \ref TextStream::flush().
  * Further formatting or special effects are implemented in \ref TextWindow.
  */
-class TextStream: public OutputStream, protected TextWindow {
+class TextStream: public OutputStream, public TextWindow {
   // Prevent copies and assignments
   TextStream(const TextStream&) = delete;
   TextStream& operator=(const TextStream&) = delete;

interrupt/epilogues.cc

@@ -1,15 +1,16 @@
 #include "epilogues.h"
 
+#include "../debug/output.h"
 #include "guard.h"
 
 extern Key kout_key;
-extern TextStream kout;
 
 namespace Epilogues {
 
 void keyboard(Vault& g) {
-    (void)g;
-    kout << kout_key.ascii() << endl << flush ;
+    g.kout.setPos(0,0);
+    g.kout << kout_key.ascii() << flush ;
+
 }
 
 void timer(Vault& g) { (void)g; }

interrupt/guard.cc

@@ -18,48 +18,55 @@ static BBuffer<Epilogue, 32> epilogue_queue[Core::MAX] = {};
 constinit Ticketlock global_lock;
 constinit bool epi_flag[Core::MAX] = {false};
 
-Vault::Vault() {}
+Vault::Vault() {
+}
 
 Guarded::~Guarded() { Guard::leave(); }
 
 Guarded Guard::enter() {
     epi_flag FOR_CURRENT_CORE = true;
-    Core::Interrupt::enable();
+    //Core::Interrupt::enable();
     global_lock.lock();
     return Guarded(global_vault);
 }
 
 void Guard::leave() {
     bool istate = Core::Interrupt::disable();
-
+     
     Epilogue next;
+    global_lock.unlock();
     while(epilogue_queue FOR_CURRENT_CORE.consume(next)){
         Core::Interrupt::enable();
+        global_lock.lock();
         next(global_vault);
+        global_lock.unlock();
         Core::Interrupt::disable();
     }
     epi_flag FOR_CURRENT_CORE = false;
-    global_lock.unlock();
     Core::Interrupt::restore(istate);
 }
-
 void Guard::relay(Epilogue handler) {
-    if(!epilogue_queue FOR_CURRENT_CORE.consume(handler))
-        return; // enqueue, but dont execute
+    //if(!epilogue_queue FOR_CURRENT_CORE.produce(handler))
+    //    return; // enqueue, but dont execute
+    //if(!epi_flag FOR_CURRENT_CORE){
+    //    enter();
+    //    Core::Interrupt::enable();
+    //    handler(global_vault);
+    //    leave();
+    //}
+
+    Core::Interrupt::enable();   // goto level 0.5
     if(epi_flag FOR_CURRENT_CORE){
-        enter();
-        Core::Interrupt::disable();
+        epilogue_queue->produce(handler);
+    }
+    else{
+        epi_flag FOR_CURRENT_CORE = true;
+        global_lock.lock();
+        handler(global_vault);
         leave();
     }
-    //Core::Interrupt::enable();   // goto level 0.5
-    //if(epi_flag FOR_CURRENT_CORE){
-    //    epilogue_queue->produce(handler);
-    //}
-    //else{
-    //    epi_flag FOR_CURRENT_CORE = true;
-    //    handler(global_vault);
-    //    leave(); // maybe not needed since destructor also calls leave
-    //}
+    //epilogue_queue->consume(handler);
+
 }
 
 const Vault &Guard::unsafeConstAccess() { return global_vault; }

interrupt/guard.h

@@ -12,8 +12,9 @@
 //! \brief The epilogue vault contains the protected data for the epilogue level
 struct Vault {
   Vault();
+  TextStream kout = TextStream(0, 80, 0, 10, true);
+
   // no copy
-  //TextStream kout;
   Vault(const Vault&) = delete;
   Vault& operator=(const Vault&) = delete;
 };

interrupt/handlers.cc

@@ -73,22 +73,22 @@ enum PAGE_FAULT_ERROR {
   kernelpanic("Page fault!");
 }
 
-extern TextStream kout;
 extern Ticketlock koutlock;
 extern Vault keyboard_vault;
 
 void handle_keyboard() {
     //Key key = Key();
     if (PS2Controller::fetch(kout_key)) {
-        Guard::relay(Epilogues::keyboard);
+      LAPIC::endOfInterrupt();
+      if (kout_key.ctrl() && kout_key.alt() && kout_key.scancode == Key::KEY_DEL)
+        System::reboot();
+      Guard::relay(Epilogues::keyboard);
         //koutlock.lock();
         //kout << key.ascii() << endl << flush ;
         //koutlock.unlock();
     }
-    else if (kout_key.ctrl() && kout_key.alt() && kout_key.scancode == Key::KEY_DEL)
-        System::reboot();
-
-    LAPIC::endOfInterrupt();
+    else
+      LAPIC::endOfInterrupt();
 }
 
 [[gnu::interrupt]] void handle_panic(InterruptContext *context) {

main.cc

@@ -16,7 +16,7 @@
 #include "sync/ticketlock.h"
 #include "interrupt/guard.h"
 
-TextStream kout = TextStream(0, 80, 0, 10, true);
+///TextStream kout = TextStream(0, 80, 0, 10, true);
 Ticketlock koutlock;
 
 //TextStream dout[8] = {
@@ -71,23 +71,6 @@ extern "C" int main() {
   CGA::setCursor(0, 0);
 
   unsigned int numCPUs = Core::count();
-  DBG_VERBOSE << "Number of CPUs: " << numCPUs << endl;
-
-  kout << "Test          <stream result> -> <expected>" << endl;
-  kout << "bool:         " << true << " -> true" << endl;
-  kout << "zero:         " << 0 << " -> 0" << endl;
-  kout << "binary:       " << bin << 42 << dec << " -> 0b101010" << endl;
-  kout << "octal:        " << oct << 42 << dec << " -> 052" << endl;
-  kout << "hex:          " << hex << 42 << dec << " -> 0x2a" << endl;
-  kout << "uint64_t max: " << ~((uint64_t)0) << " -> 18446744073709551615" << endl;
-  kout << "int64_t max:  " << ~(1ll<<63) << " -> 9223372036854775807" << endl;
-  kout << "int64_t min:  " << (1ll<<63) << " -> -9223372036854775808" << endl;
-  kout << "some int64_t: " << (-1234567890123456789) << " -> -1234567890123456789" << endl;
-  kout << "some int64_t: " << (1234567890123456789) << " -> 1234567890123456789" << endl;
-  kout << "pointer:      " << reinterpret_cast<void*>(1994473406541717165ull)
-      << " -> 0x1badcafefee1dead" << endl;
-  kout << "smiley:       " << static_cast<char>(1) << endl;
-  
   /* Start application processors
    * To avoid unexpected behaviour, make sure that interrupts are not
    * enabled before the APs are booted. Otherwise it might interfere with the
@@ -110,8 +93,8 @@ extern "C" int main() {
 
   Application{}.action();
   while (true){
-      DBG << "pos: " << testx << ", " << testy << endl << flush;
-      Core::pause();
+      //DBG << "pos: " << testx << ", " << testy << endl << flush;
+      //Core::pause();
   }
 
   return 0;

sync/ticketlock.cc

@@ -1,4 +1,5 @@
 #include "sync/ticketlock.h"
+#include "debug/output.h"
 
 void Ticketlock::lock() {
     uint64_t ticket = __atomic_fetch_add(&ticket_count, 1, __ATOMIC_RELAXED);
@@ -8,5 +9,7 @@ void Ticketlock::lock() {
 }
 
 void Ticketlock::unlock() {
-    __atomic_fetch_add(&ticket_current, 1, __ATOMIC_RELEASE);
+    if(ticket_current != ticket_count){
+        __atomic_fetch_add(&ticket_current, 1, __ATOMIC_RELEASE);
+    }
 }

tools/remote.mk

@@ -1,7 +1,7 @@
 # Test your system on real hardware
 
 NETBOOT_LOCAL="/ibr/adm/user-boot/"
-NETBOOT_HOST="y0085044@x1.ibr.cs.tu-bs.de"
+NETBOOT_HOST="y0080589@x1.ibr.cs.tu-bs.de"
 
 # The boot menu shows pairs of `vmlinuz-*` + `initrd-*.img` with owning user and timestamp.
 # We just need to choose a name that doesn't overlap with another user's.

user/app1/appl.cc

@@ -7,7 +7,7 @@
 #include "../../sync/ticketlock.h"
 #include "../../arch/core.h"
 #include "../../interrupt/guard.h"
-
+#include "../../debug/output.h"
 char text[] = "Ich mag\n\
 Saftige Pflaumen voller Aroma\n\
 Ich knuddel jede Oma ins Koma\n\
@@ -21,7 +21,6 @@ Ich bin Großmuttersniffer\n\
 Und wacht sie aus'm Koma auf, kriegt sie von mir 'n Sticker\n\
 \n";
 
-extern TextStream kout;
 extern Ticketlock koutlock;
 
 void activeWaitDelay(uint64_t cycles) {
@@ -37,16 +36,19 @@ void Application::action() {  // NOLINT
 	uint16_t cnt = 0;
 	while (1) {
         //koutlock.lock();
+		{
 		Guarded g = Guard::enter();
 		//g.vault();
-		while(text[cnt++] != '\n'){
-			kout << text[cnt-1];
-		}
-		kout << endl << flush;
-		Guard::leave();
+		g.vault().kout.setPos((unsigned)0,(unsigned)Core::getID()*2+1);
+		
+		g.vault().kout << cnt++ << flush;
+		
+		//g.vault().kout << endl << flush;
+		//Guard::leave();
 		//koutlock.unlock();
-
-		activeWaitDelay(1000000000);
+		}
+		Core::pause();
+		//activeWaitDelay(1000000000);
 		if(cnt >= sizeof(text)-1)
 			cnt=0;