/*
* $Log$
+ * Revision 1.4 2008/02/13 16:57:29 james
+ * *** empty log message ***
+ *
+ * Revision 1.3 2008/02/13 09:12:21 james
+ * *** empty log message ***
+ *
+ * Revision 1.2 2008/02/12 22:36:46 james
+ * *** empty log message ***
+ *
* Revision 1.1 2008/02/08 15:06:42 james
* *** empty log message ***
*
#include "project.h"
-int ring_read(Ring *r,void *b,int n)
+int
+ring_read (Ring * r, void *b, int n)
{
-int red=0;
+ int red = 0;
-while (n--) {
+ while (n--)
+ {
-if (!ring_read_one(r,b))
- break;
+ if (!ring_read_one (r, b))
+ break;
-b++;
-red++;
-}
+ b++;
+ red++;
+ }
-return red;
+ return red;
}
-int ring_write(Ring *r,void *b,int n)
+int
+ring_write (Ring * r, void *b, int n)
{
-int writ=0;
+ int writ = 0;
+
+ while (n--)
+ {
-while (n--) {
+ if (!ring_write_one (r, b))
+ break;
-if (!ring_write_one(r,b))
- break;
+ b++;
+ writ++;
+ }
-b++;
-writ++;
+ return writ;
}
-return writ;
+int
+ring_space (Ring * r)
+{
+ int i;
+
+ i = r->size - RING_NEXT_W (r) + r->rptr;
+ i %= r->size;
+ return i;
}
+int
+ring_bytes (Ring * r)
+{
+ int i;
+
+ i = r->size + r->wptr - r->rptr;
+ i %= r->size;
+ return i;
+}
+
+
-Ring *ring_new(int n)
+Ring *
+ring_new (int n)
{
-Ring *ret=(Ring *)malloc(sizeof(Ring));
-ret->buf=(uint8_t *)malloc(n);
-ret->size=n;
-ret->wptr=ret->rptr=0;
+ Ring *ret = (Ring *) malloc (sizeof (Ring));
+ ret->ring = (uint8_t *) malloc (n);
+ ret->size = n;
+ ret->wptr = ret->rptr = 0;
-return ret;
+ return ret;
}