modtronix H / modtronix_NZ32S

Library for Modtronix NZ32 STM32 boards, like the NZ32-SC151, NZ32-SB072, NZ32-SE411 and others

Diff: mx_circular_buffer.h

Revision:
7:709130701ac7
Parent:
4:43abdd8eda40
Child:
17:86034c970ea0
--- a/mx_circular_buffer.h	Mon Aug 31 10:29:58 2015 +1000
+++ b/mx_circular_buffer.h	Thu Sep 10 20:09:01 2015 +1000
@@ -164,13 +164,20 @@
      * @return Number of available bytes in buffer
      */
     CounterType getAvailable() {
-        CounterType avail;
-        if (isEmpty()) {
+        if (_head != _tail) {
+            CounterType avail;
+            avail = _head - _tail;
+            avail %= BufferSize;
+            return avail;
+        }
+
+        //Head=Tail. Can be full or empty
+        if (_full==false) {
             return 0;
         }
-        avail = _head - _tail;
-        avail %= BufferSize;
-        return avail;
+        else {
+            return BufferSize;
+        }
     }