Add CircBuffer::peek

4ms · Oct 2, 2024 · 44bdc87 · 44bdc87
1 parent 35981a4
commit 44bdc87
Showing 1 changed file with 6 additions and 0 deletions.
diff --git a/util/circular_buffer.hh b/util/circular_buffer.hh
@@ -109,6 +109,12 @@ public:
 		return tail_;
 	}
 
+	T peek(size_t idx) const {
+		idx += tail_;
+		idx &= SIZE_MASK;
+		return buf_[idx];
+	}
+
 private:
 	void inc_head() {
 		head_ = (head_ + 1) & SIZE_MASK;