From 52bee8f81fe749c37030ee3095471d8c2f0d8ab4 Mon Sep 17 00:00:00 2001
From: Max Kellermann <max@musicpd.org>
Date: Fri, 2 Aug 2019 22:49:50 +0200
Subject: [PATCH] util/StaticFifoBuffer: add GetAvailable()

---
 src/util/StaticFifoBuffer.hxx | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/util/StaticFifoBuffer.hxx b/src/util/StaticFifoBuffer.hxx
index 3598d7246..615f92e3f 100644
--- a/src/util/StaticFifoBuffer.hxx
+++ b/src/util/StaticFifoBuffer.hxx
@@ -111,6 +111,10 @@ public:
 		tail += n;
 	}
 
+	constexpr size_type GetAvailable() const noexcept {
+		return tail - head;
+	}
+
 	/**
 	 * Return a buffer range which may be read.  The buffer pointer is
 	 * writable, to allow modifications while parsing.