Added new RingBuffer_Peek() function to the lightweight ring buffer headers.

git-svn-id: http://lufa-lib.googlecode.com/svn/trunk@1602 d5102386-fcda-11dd-9fdb-3debd5008f28

3 files changed, 33 insertions, 0 deletions

diff --git a/Projects/Benito/Lib/LightweightRingBuff.h b/Projects/Benito/Lib/LightweightRingBuff.h
index 56da8398..cddf97f6 100644
--- a/Projects/Benito/Lib/LightweightRingBuff.h
+++ b/Projects/Benito/Lib/LightweightRingBuff.h
@@ -196,5 +196,16 @@
 			return Data;
 		}
 
+		/** Returns the next element stored in the ring buffer, without removing it.
+		 *
+		 *  \param[in,out] Buffer  Pointer to a ring buffer structure to retrieve from
+		 *
+		 *  \return Next data element stored in the buffer
+		 */
+		static inline RingBuff_Data_t RingBuffer_Peek(RingBuff_t* const Buffer)
+		{
+			return *Buffer->Out;
+		}
+
 #endif
 
diff --git a/Projects/USBtoSerial/Lib/LightweightRingBuff.h b/Projects/USBtoSerial/Lib/LightweightRingBuff.h
index 56da8398..cddf97f6 100644
--- a/Projects/USBtoSerial/Lib/LightweightRingBuff.h
+++ b/Projects/USBtoSerial/Lib/LightweightRingBuff.h
@@ -196,5 +196,16 @@
 			return Data;
 		}
 
+		/** Returns the next element stored in the ring buffer, without removing it.
+		 *
+		 *  \param[in,out] Buffer  Pointer to a ring buffer structure to retrieve from
+		 *
+		 *  \return Next data element stored in the buffer
+		 */
+		static inline RingBuff_Data_t RingBuffer_Peek(RingBuff_t* const Buffer)
+		{
+			return *Buffer->Out;
+		}
+
 #endif
 
diff --git a/Projects/XPLAINBridge/Lib/LightweightRingBuff.h b/Projects/XPLAINBridge/Lib/LightweightRingBuff.h
index 0205fe46..b19291ca 100644
--- a/Projects/XPLAINBridge/Lib/LightweightRingBuff.h
+++ b/Projects/XPLAINBridge/Lib/LightweightRingBuff.h
@@ -196,5 +196,16 @@
 			return Data;
 		}
 
+		/** Returns the next element stored in the ring buffer, without removing it.
+		 *
+		 *  \param[in,out] Buffer  Pointer to a ring buffer structure to retrieve from
+		 *
+		 *  \return Next data element stored in the buffer
+		 */
+		static inline RingBuff_Data_t RingBuffer_Peek(RingBuff_t* const Buffer)
+		{
+			return *Buffer->Out;
+		}
+
 #endif