Diff: queueEx.h

Revision:

1:07cddbd29781

Child:

2:68ce6bdc0714

diff -r a03810d46457 -r 07cddbd29781 queueEx.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/queueEx.h	Mon Nov 22 00:41:30 2021 +0000
@@ -0,0 +1,34 @@
+/**
+  ******************************************************************************
+  * @file           : queueEx.h
+  * @brief          : queue expansion
+  ******************************************************************************
+  * @attention
+  *
+  ******************************************************************************
+  */
+#ifndef QUEUEEX_h
+#define QUEUEEX_h
+
+#include "queue.h"
+
+class QueueEx : public Queue{
+private:
+public:
+    QueueEx(int iSize, int iCount) : Queue(iSize, iCount){
+    }
+    bool Peek(int index, void* pvItem){
+        unsigned char *p = m_pnRdIndex;
+        if (index < m_iLclCount){
+            for(int i = 0; i < index; i++){
+                p += m_iSize;
+                if ( p >= m_pnTail ) p = m_pnHead;
+            }
+            memcpy( pvItem, p, m_iSize );
+            return true;
+        }
+        return false;
+    }
+};
+
+#endif/*QUEUEEX_h*/