3 files changed, 16 insertions(+), 1 deletions(-)

M carrera/main.c
M port/portfns.h
M port/qio.c

@@ 503,7 503,7 @@ rdbginit(void)
 {
 	uchar *vec;
 	ulong jba;
-
+return;
 	/* Only interested in the PC */
 	Mipsjmpbuf.pc = 0x8001C020;
 

@@ 204,6 204,7 @@ int		qproduce(Queue*, void*, int);
 long		qread(Queue*, void*, int);
 void		qreopen(Queue*);
 void		qunlock(QLock*);
+int		qwindow(Queue*);
 long		qwrite(Queue*, void*, int, int);
 int		readnum(ulong, char*, ulong, ulong, int);
 int		readstr(ulong, char*, ulong, char*);

@@ 656,6 656,20 @@ qlen(Queue *q)
 }
 
 /*
+ * return space remaining before flow control
+ */
+int
+qwindow(Queue *q)
+{
+	int l;
+
+	l = q->limit - q->len;
+	if(l < 0)
+		l = 0;
+	return l;
+}
+
+/*
  *  return true if we can read without blocking
  */
 int