From d6cba83322fe1cb03b730bee89a5c8d7a3b5e67c Mon Sep 17 00:00:00 2001
From: Michael Bebenita <mbebenita@mozilla.com>
Date: Wed, 28 Jul 2010 00:01:06 -0700
Subject: [PATCH] Add peek method to circular buffer.

---
 src/rt/circular_buffer.cpp | 5 +++++
 src/rt/circular_buffer.h   | 1 +
 2 files changed, 6 insertions(+)

diff --git a/src/rt/circular_buffer.cpp b/src/rt/circular_buffer.cpp
index fd389850493..640809e048f 100644
--- a/src/rt/circular_buffer.cpp
+++ b/src/rt/circular_buffer.cpp
@@ -127,6 +127,11 @@ circular_buffer::dequeue(void *dst) {
 
 }
 
+uint8_t *
+circular_buffer::peek() {
+    return &_buffer[_next];
+}
+
 bool
 circular_buffer::is_empty() {
     return _unread == 0;
diff --git a/src/rt/circular_buffer.h b/src/rt/circular_buffer.h
index dc4160d8f33..732ba329dac 100644
--- a/src/rt/circular_buffer.h
+++ b/src/rt/circular_buffer.h
@@ -19,6 +19,7 @@ public:
     void transfer(void *dst);
     void enqueue(void *src);
     void dequeue(void *dst);
+    uint8_t *peek();
     bool is_empty();
 
 private: