From 6b968beede4e80975283e7eb8e08c71ac5d7a1a8 Mon Sep 17 00:00:00 2001
From: Max Kellermann <max@musicpd.org>
Date: Tue, 24 Jan 2017 22:20:09 +0100
Subject: [PATCH] output/alsa: convert to class, make attributes private

---
 src/output/plugins/AlsaOutputPlugin.cxx | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/output/plugins/AlsaOutputPlugin.cxx b/src/output/plugins/AlsaOutputPlugin.cxx
index 466449721..b9878bfed 100644
--- a/src/output/plugins/AlsaOutputPlugin.cxx
+++ b/src/output/plugins/AlsaOutputPlugin.cxx
@@ -50,7 +50,9 @@ static constexpr unsigned MPD_ALSA_BUFFER_TIME_US = 500000;
 
 static constexpr unsigned MPD_ALSA_RETRY_NR = 5;
 
-struct AlsaOutput {
+class AlsaOutput {
+	friend struct AudioOutputWrapper<AlsaOutput>;
+
 	AudioOutput base;
 
 	Manual<PcmExport> pcm_export;
@@ -121,6 +123,7 @@ struct AlsaOutput {
 	 */
 	uint8_t *silence;
 
+public:
 	AlsaOutput(const ConfigBlock &block);
 
 	~AlsaOutput() {