--- multiplexer/global.h	2001/08/02 14:51:22	1.16
+++ multiplexer/global.h	2001/08/06 19:43:35	1.17
@@ -151,11 +151,19 @@ typedef struct {
 #define list_free(refr) \
   (((refr).out - (refr).in - 1) & (refr).mask)
 
+/* Version of list_free with cached (refr).in */
+#define list_freecachedin(refr,refrin) \
+  (((refr).out - refrin - 1) & (refr).mask)
+
 /* Compute number of free elements up to the wrapping point, if the
    latter is included in the free part of the buffer */
 #define list_freeinend(refr) \
   ((refr).mask + 1 - (refr).in)
 
+/* Version of list_freeinend with cached (refr).in */
+#define list_freeinendcachedin(refr,refrin) \
+  ((refr).mask + 1 - refrin)
+
 /* Compute number of used elements in buffer (i.e. its current size) */
 #define list_size(refr) \
   (((refr).in - (refr).out) & (refr).mask)