From 8edd0456a3a85341ad429a887691487beed3262c Mon Sep 17 00:00:00 2001
From: MadCamel <madcamel@gmail.com>
Date: Fri, 28 Feb 2014 09:09:07 -0500
Subject: Lower process priority when saving login/char databases

In the event of CPU contention this will make forked database writes
take a back-seat to the actual running server.
---
 src/char/char.cpp | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

(limited to 'src/char/char.cpp')

diff --git a/src/char/char.cpp b/src/char/char.cpp
index 55dca81..04e540b 100644
--- a/src/char/char.cpp
+++ b/src/char/char.cpp
@@ -7,6 +7,8 @@
 #include <netdb.h>
 #include <unistd.h>
 
+#include <sys/resource.h>
+
 #include <cassert>
 #include <cstdlib>
 #include <cstring>
@@ -555,8 +557,13 @@ void mmo_char_sync_timer(TimerData *, tick_t)
 
     // This can take a lot of time. Fork a child to handle the work and return at once
     // If we're unable to fork just continue running the function normally
-    if ((pid = fork()) > 0)
+    if ((pid = fork()) > 0) {
         return;
+    }
+
+    // If we're a child, run as a lower priority process
+    if (pid == 0)
+        setpriority(PRIO_PROCESS, getpid(), 10);
 
     mmo_char_sync();
     inter_save();
-- 
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