From d2d85b29f4203bc3ab3ac52a60bb92e4acd98d5e Mon Sep 17 00:00:00 2001
From: ejurgensen <espenjurgensen@gmail.com>
Date: Sun, 7 Sep 2014 13:48:03 +0200
Subject: [PATCH] Lower the priority of the thread so forked-daapd may still
 respond during file scan on low power devices

---
 src/filescanner.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/src/filescanner.c b/src/filescanner.c
index c9a6bfcf..26817663 100644
--- a/src/filescanner.c
+++ b/src/filescanner.c
@@ -1074,8 +1074,20 @@ bulk_scan(int flags)
 static void *
 filescanner(void *arg)
 {
+  struct sched_param param;
   int ret;
 
+  /* Lower the priority of the thread so forked-daapd may still respond
+   * during file scan on low power devices. Param must be 0 for the SCHED_BATCH
+   * policy.
+   */
+  memset(&param, 0, sizeof(struct sched_param));
+  ret = pthread_setschedparam(pthread_self(), SCHED_BATCH, &param);
+  if (ret != 0)
+    {
+      DPRINTF(E_LOG, L_SCAN, "Warning: Could not set thread priority to SCHED_BATCH\n");
+    }
+
   ret = db_perthread_init();
   if (ret < 0)
     {