scritte, per favore Piede

anno2/YearI/FirstSem/MCAD/slides/esercizi2019/bomboloni_sol/mia_messagepassing

@@ -14,6 +14,76 @@ Process Bancone {
 
 	do
 		[] nbomb == 0 or butta; p = receive(s) from friggi_i ->
+			send(nbomb) to p.ok;
+
+		[] ; receive(s) from friggi_f;
+           nbomb = 30;
+           butta = false;
+           alarm = tick + 60;
+
+        [] nbomb > 0 and !butta; p = receive(s) from servi_i ->
            send(s) to p.ok;
 
-		[] ; receive(s) from friggi_f
+        [] ; receive(s) from servi_f ->
+           nbomb--;
+
+        [] tick >= alarm; p = receive(s) from wait_timer ->
+           send(s) to p.ok;
+
+        [] butta == false; receive(s) from scaduti ->
+           butta = true;
+
+        [] ; receive(s) from clock ->
+           tick++;
+
+        [] ; receive(n) from set_timer ->
+           alarm += n;
+
+    od
+}
+
+Process Mario {
+    int b_rimasti = 0;
+    signal s;
+    port signal ok;
+
+    while(true){
+        send(s) to Bancone.friggi_i;
+        receive(b_rimasti) from ok;
+        if(b_rimasti) < butta >;
+        < friggi bomboloni >
+        send(s) to Bancone.friggi_f;
+    }
+}
+
+Process Piero {
+    signal s;
+    port signal ok;
+
+    while(true){
+        send(s) to Bancone.servi_i;
+        receive(s) from ok;
+        < servi cliente >
+        send(s) to Bancone.servi_f;
+    }
+}
+
+Process Rosa {
+    signal s;
+    port signal ok;
+
+    while(true){
+        send(s) to Bancone.wait_timer;
+        receive(s) from ok;
+        send(s) to Bancone.scaduti;
+        send(s) to Bancone.settimer(60);
+    }
+}
+
+Process Clock {
+    signal s;
+    while(true){
+        < hw clock >
+        send(s) to Bancone.clock;
+    }
+}

anno2/YearI/FirstSem/MCAD/slides/esercizi2019/bomboloni_sol/mia_monitor

@@ -0,0 +1,90 @@
+Monitor Bancone{
+    condition friggi;
+    condition pronti;
+    int nbomb = 0;
+    boolean butta = false;
+
+    public int friggi_i(){
+        if(nbomb > 0 and !butta)
+            wait(friggi);
+        return nbomb;
+
+    public void friggi_f(){
+        nbomb = 30;
+        butta = false;
+    }
+
+    public void servi_i(){
+         if(nbomb == 0)
+              wait(pronti);
+    }
+
+    public void servi_f(){
+         nbomb--;
+         if(nbomb == 0)
+             signal(friggi);
+    }
+
+    public void scaduti(){
+        butta = true;
+        signal(friggi);
+    }
+}
+
+Monitor Clock{
+    long tick = 0;
+    long alarm = -1;
+    condition sleeping;
+
+    public void wait_timer(){
+        if(alarm >= tick and alarm != -1)
+            wait(sleeping)
+    }
+
+    public void tick(){
+        tick++;
+        if(tick >= alarm and !empty sleeping)
+            signal(sleeping);
+    }
+
+    public void set_timer(long n){
+         alarm = tick + n;
+    }
+}
+
+Clock clock;
+Bancone bancone;
+
+Process Mario{
+    while(true){
+        int rimasti = bancone.friggi_i();
+        if(rimasti > 0) < butta >
+        < friggi i bomboloni >
+        bancone.friggi_f();
+        clock.set_timer(1 ora);
+    }
+}
+
+Process Piero{
+    while(true){
+        < attendi cliente >
+        bancone.servi_i();
+        < servi cliente >
+        bancone.servi_f();
+    }
+}
+
+Process Rosa{
+    while(true){
+        clock.wait_timer();
+        bancone.butta();
+        clock.set_timer(1 ora);
+    }
+}
+
+Process ClockRuns{
+    while(true){
+        < hardware tick >
+        clock.tick();
+    }
+}

anno2/YearI/FirstSem/MCAD/slides/esercizi2019/bomboloni_sol/mia_rendevouz

@@ -2,7 +2,7 @@ Process Bancone {
 	int nbomb = 0;
 	long tick = 0, alarm = -1;
 	bool butta = false;
-	entry friggi_i;
+	entry friggi_i(out int rimasti);
 	entry friggi_f;
 	entry servi_cliente_i;
 	entry servi_cliente_f;
@@ -12,7 +12,8 @@ Process Bancone {
 	entry set_timer (in long n);
 
 	do
-		[] nbomb == 0 or butta; accept friggi_i();
+		[] nbomb == 0 or butta; accept friggi_i(out nrimasti);
+            nrimasti = nbomb;
 
 		[] ; accept friggi_f() ->
 			nbomb = 30;
@@ -41,8 +42,10 @@ Process Bancone {
 }
 
 Process Mario {
+    int nrimasti;
 	while(true){
-		call Bancone.friggi_i();
+		call Bancone.friggi_i(nrimasti);
+        if(nrimasti) < butta >;
 		< friggi bomboloni >
 		call Bancone.friggi_f();
 	}
@@ -50,6 +53,7 @@ Process Mario {
 
 Process Piero {
 	while(true){
+        < attendi cliente >
 		call Bancone.servi_cliente_i();
 		< servi cliente >
 		call Bancone.servi_cliente_f();
@@ -60,7 +64,6 @@ Process Rosa {
 	while(true){
 		call Bancone.wait_timer();
 		call Bancone.butta();
-		< butta >
 		call Bancone.set_timer(60);
 	}
 }

anno2/YearI/FirstSem/MCAD/slides/esercizi2019/bomboloni_sol/mia_semafori

@@ -0,0 +1,53 @@
+Semaphore mut = 1;
+Semaphore pierasem = 0;
+Semaphore mariosem = 1;
+Semaphore pierosem = 0
+int nbomb = 0;
+boolean attesaPiero;
+
+Process Mario{
+    while(true){
+        P(mariosem);
+        < friggi >
+        P(mut);
+        nbomb = 30;
+        if(attesaPiero)
+            attesaPiera = false;
+            V(pierosem);
+        if(butta == true) // e` stata Rosa
+            butta = false;
+            V(rosasem)
+        V(mut);
+    }
+}
+
+Process Piero{
+    while(true){
+       < attesa cliente >
+       P(pierosem);
+       P(mut);
+       nbomb --;
+       V(mut)
+
+       < servi cliente >
+
+       P(mut)
+       if(nbomb == 0)
+           V(mariosem);
+           attesaPiero = true;
+       else
+           V(pierosem);
+       V(mut)
+    }
+}
+
+Process Rosa{
+    while(true){
+        wait_timer();
+        P(mut);
+        butta = true;
+        V(mut);
+        P(rosasem);
+        set_timer(60);
+    }
+}