From 5a38a2e4826d0432cbb956a521c3fe4842cf1350 Mon Sep 17 00:00:00 2001
From: Robbert van der Helm <mail@robbertvanderhelm.nl>
Date: Thu, 10 Jun 2021 01:35:43 +0200
Subject: [PATCH] Lock mapped shared memory for audio buffers

---
 src/common/audio-shm.cpp | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/common/audio-shm.cpp b/src/common/audio-shm.cpp
index 7aa1d7b5..a2d7d3bc 100644
--- a/src/common/audio-shm.cpp
+++ b/src/common/audio-shm.cpp
@@ -22,8 +22,9 @@ AudioShmBuffer::AudioShmBuffer(const Config& config)
           config.name.c_str(),
           boost::interprocess::read_write) {
     shm.truncate(config.size);
-    buffer = boost::interprocess::mapped_region(
-        shm, boost::interprocess::read_write, 0, config.size);
+    buffer =
+        boost::interprocess::mapped_region(shm, boost::interprocess::read_write,
+                                           0, config.size, nullptr, MAP_LOCKED);
 }
 
 AudioShmBuffer::~AudioShmBuffer() noexcept {