From 4faed779d1cacedf524cb47711071a5a6ada8809 Mon Sep 17 00:00:00 2001
From: Brandon Williams <brandonwilliams@apache.org>
Date: Tue, 15 Jan 2013 06:32:08 -0600
Subject: [PATCH] Detect memory for heap sizing on OSX. Patch by Cathy Daw,
 reviewed by brandonwilliams for CASSANDRA-5157

---
 conf/cassandra-env.sh | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/conf/cassandra-env.sh b/conf/cassandra-env.sh
index 95760ddf9a..e38371f204 100644
--- a/conf/cassandra-env.sh
+++ b/conf/cassandra-env.sh
@@ -30,6 +30,11 @@ calculate_heap_sizes()
             system_memory_in_mb=`prtconf | awk '/Memory size:/ {print $3}'`
             system_cpu_cores=`psrinfo | wc -l`
         ;;
+        Darwin)
+            system_memory_in_bytes=`sysctl hw.memsize | awk '{print $2}'`
+            system_memory_in_mb=`expr $system_memory_in_bytes / 1024 / 1024`
+            system_cpu_cores=`sysctl hw.ncpu | awk '{print $2}'`
+        ;;
         *)
             # assume reasonable defaults for e.g. a modern desktop or
             # cheap server