Update all syscall

And add PutInt() and GetInt()

code/Makefile.dep

@@ -41,8 +41,8 @@ CFLAGS += -fsanitize=undefined
 LDFLAGS += -fsanitize=undefined
 
 # décommenté TD1 - partie V
-#CFLAGS += -fsanitize=address
-#LDFLAGS += -fsanitize=address -lpthread
+CFLAGS += -fsanitize=address
+LDFLAGS += -fsanitize=address -lpthread
 endif
 
 ifeq ($(NACHOS_SYS),MAC_OS_SYS)

code/test/start.S

@@ -181,6 +181,24 @@ GetString:
 	syscall
 	j	$31
 	.end GetString
+
+    .globl PutInt
+    .ent    PutInt
+PutInt:
+    addiu $2,$0,SC_PutInt
+	syscall
+	j	$31
+	.end PutInt
+
+    .globl GetInt
+    .ent    GetInt
+GetInt:
+    addiu $2,$0,SC_GetInt
+	syscall
+	j	$31
+	.end GetInt
+
+    
 #endif
 
 /* dummy function to keep gcc happy */

code/threads/threadtest.cc

@@ -11,7 +11,6 @@
 
 #include "copyright.h"
 #include "system.h"
-
 //----------------------------------------------------------------------
 // SimpleThread
 //      Loop 10 times, yielding the CPU to another ready thread 

code/userprog/consoledriver.cc

@@ -37,22 +37,22 @@ int ConsoleDriver::GetChar()
 	return ch;
 }
 
-void ConsoleDriver::PutString(const char s[MAX_STRING_SIZE])
+void ConsoleDriver::PutString(const char s[])
 {
-  int i;
-  for (i = 0; i < MAX_STRING_SIZE; i++){
-    if (*(s+i) =='\0'){
-      return;
-    }
+  int i = 0;
+  while (*(s+i) != '\0')
+  {
     PutChar(*(s+i));
+    i++;
   }
 }
 
 void ConsoleDriver::GetString(char * s, int n)
 {
   int i;
-  for ( i = 0; i < n - 1; i++){
+  for ( i = 0; i < n; i++){
     char c = GetChar();
+    DEBUG('s', "consoledriver->getstring keycode:%d, position:%d\n", (int)c, i);
     if ( c == '\0' || c == '\n' || c == EOF) {
       break;
     }
@@ -61,4 +61,22 @@ void ConsoleDriver::GetString(char * s, int n)
   *(s+i) = '\0'; 
 }
 
+void ConsoleDriver::PutInt(int n)
+{
+  char *buffer = new char[MAX_STRING_SIZE];
+  snprintf(buffer,MAX_STRING_SIZE,"%d",n);
+  DEBUG('s', "consoledriver->PutInt buffer:%s\n", buffer); 
+  PutString(buffer);
+  delete [] buffer;
+}
+
+int ConsoleDriver::GetInt()
+{
+  int n;
+  char *buffer = new char[MAX_STRING_SIZE];
+  GetString(buffer,MAX_STRING_SIZE);
+  sscanf(buffer, "%d", &n);
+  delete [] buffer;
+  return n;
+}
 #endif // CHANGED

code/userprog/consoledriver.h

@@ -18,6 +18,8 @@ class ConsoleDriver:dontcopythis {
     
 	void PutString(const char *s); // Behaves like fputs(3S)
 	void GetString(char *s, int n); // Behaves like fgets(3S)
+    void PutInt(int n);
+    int GetInt();
   private:
 	Console *console;
 };

code/userprog/exception.cc

@@ -69,7 +69,8 @@ int copyStringFromMachine(int from, char *to, unsigned size)
 	int res;
     
     // Need to read size-1 to put final /0 if needed
-	while((i<size-1) && (machine->ReadMem(from+i,1,&res))){
+	while((i < size) && (machine->ReadMem(from+i,1,&res))){
+        DEBUG('s', "\n  ->copyFromMachine keycode:%d", res);
 		*(to+i) = (char)res;
 		if ((char)res == '\0'){
 		  return i;
@@ -83,7 +84,8 @@ int copyStringFromMachine(int from, char *to, unsigned size)
 int copyStringToMachine(int to, char* from, unsigned size)
 {
     unsigned i;
-    for (i=0; i < size - 1; i++) {
+    for (i=0; i < size ; i++) {
+      DEBUG('s', "\n  ->copyToMachine keycode:%d", (int)from[i]);
       if (from[i] == '\0') {
         break;  
       }
@@ -134,14 +136,11 @@ ExceptionHandler (ExceptionType which)
             int readsize;
             int addr_start = machine->ReadRegister(4);
             do {
-                char* read = new char[MAX_STRING_SIZE];
+                char *read = new char[MAX_STRING_SIZE + 1];
                 readsize = copyStringFromMachine( addr_start, read, MAX_STRING_SIZE);
+                DEBUG('s', "\nRead buffer:%s, size:%d\n", read, readsize);
                 consoledriver->PutString(read);
-                //  beware, the last element of our buffer was added by 
-                //  copyStringFromMachine(), we need to remove one memory case 
-                //  or the first char of our next read will be
-                //  forgotten
-                addr_start += readsize - 1;
+                addr_start += readsize ;
                 delete [] read;
             } while(readsize == MAX_STRING_SIZE);
             break;
@@ -151,32 +150,55 @@ ExceptionHandler (ExceptionType which)
             DEBUG ('s', "GetChar.\n");
             // Get the char input an write it to the register n.2
             int c = consoledriver->GetChar();
-            machine->WriteRegister((2), c);
+            machine->WriteRegister(2, c);
             break;
           }
 
         case SC_GetString:
           {
-            DEBUG ('s', "GetString.\n");
+            DEBUG('s', "Begin GetString.\n");
             int writesize = 0;
             int addr = machine->ReadRegister(4);
             int size = machine->ReadRegister(5);
-            DEBUG ('s', "size:%d\n", size);
+            DEBUG('s', "size:%d\n", size);
             do {
-                char* write = new char[MAX_STRING_SIZE];
-                consoledriver->GetString(write, MAX_STRING_SIZE);
-                DEBUG('s', "write:%s:\n", write);
-                writesize = copyStringToMachine(addr, write, MAX_STRING_SIZE);
+                // Do not process char before size
+                // but for now we don't have any method to determine if
+                // string passed to our function est bigger than expected (size)
+                int n_char = ( size < MAX_STRING_SIZE) ? size : MAX_STRING_SIZE;
+                
+                // allocate on byte more than buffer to put our \0 if needed
+                char *write = new char[n_char + 1];
+                consoledriver->GetString(write, n_char);
+                writesize = copyStringToMachine(addr, write, n_char);
                 addr += writesize;
-                DEBUG('s', "Writed:%d\n", writesize);
+                size = size - writesize;
+                DEBUG('s', "writed:%s, size:%d, remain:%d\n", write, writesize, size);
                 delete [] write;
-            } while( writesize == MAX_STRING_SIZE - 1 );
+            } while( size > 0 && writesize == MAX_STRING_SIZE );
+            DEBUG('s', "End GetString\n");
             break;
           }
+        case SC_PutInt:
+          {
+             DEBUG('s', "PutInt.\n");
+             int n = machine->ReadRegister(4);
+             DEBUG('s', "PutInt parameter: %d\n", n);
+             consoledriver->PutInt(n);
+          }
+          break;
+        case SC_GetInt:
+          {
+             DEBUG('s', "GetInt\n");
+             int n = consoledriver->GetInt();
+             DEBUG('s', "Number entered: %d\n", n);
+             machine->WriteRegister(2,n);
+             break;
+          }
         #endif
 		default:
 		  {
-		    printf("Unimplemented system call %d\n", type);
+		    printf("Unimplemented system call %d\n", type); 
 		    ASSERT(FALSE);
 		  }
 	      }

code/userprog/syscall.h

@@ -36,6 +36,8 @@
 #define SC_PutString    12
 #define SC_GetChar      13
 #define SC_GetString    14
+#define SC_PutInt       15
+#define SC_GetInt       16
 #endif
 #ifdef IN_USER_MODE
 
@@ -137,9 +139,12 @@ void Yield ();
 
 #ifdef CHANGED
 void PutChar (char c);
-void PutString (char * s);
-void GetChar(char c);
-void GetString(char * s, int n );
+void PutString (char *s);
+char GetChar();
+void GetString(char *s, int n );
+void PutInt(int n);  
+int GetInt();
+
 #endif // CHANGED
 
 #endif // IN_USER_MODE