From 6f89e24d338937cf8e7aeac5c854b4f442181030 Mon Sep 17 00:00:00 2001
From: Siraaj Khandkar <siraaj@khandkar.net>
Date: Fri, 22 Mar 2019 14:48:00 -0400
Subject: [PATCH] Add memory sensor

---
 x4/bin/khatus_x4_sensor_memory | 20 ++++++++++++++++++++
 x4/sanity_check                |  4 +++-
 2 files changed, 23 insertions(+), 1 deletion(-)
 create mode 100755 x4/bin/khatus_x4_sensor_memory

diff --git a/x4/bin/khatus_x4_sensor_memory b/x4/bin/khatus_x4_sensor_memory
new file mode 100755
index 0000000..0bf6f0b
--- /dev/null
+++ b/x4/bin/khatus_x4_sensor_memory
@@ -0,0 +1,20 @@
+#! /bin/sh
+
+set -e
+
+bin_dir="$(dirname $(realpath $0))"
+
+. "$bin_dir/khatus_x4_lib_common_sensor.sh"
+
+sensor() {
+    free | awk '
+        $1 == "Mem:" {
+            total = $2
+            used  = $3
+            percent_used = int(((used / total) * 100) + 0.5)  # Average
+            print("percent_used", percent_used)
+        }
+    '
+}
+
+run_as_poller
diff --git a/x4/sanity_check b/x4/sanity_check
index af68cf6..a01a0c1 100755
--- a/x4/sanity_check
+++ b/x4/sanity_check
@@ -20,6 +20,7 @@ sensors_fork_all() {
     ./bin/khatus_x4_sensor_bluetooth&
     ./bin/khatus_x4_sensor_mpd      &
     ./bin/khatus_x4_sensor_energy   &
+    ./bin/khatus_x4_sensor_memory   &
 }
 
 sensor_read_one() {
@@ -40,7 +41,8 @@ sensors_read_all() {
         bluetooth_devices="$(sensor_read_one ${dir}/khatus_x4_sensor_bluetooth/out/count_connected_devices)"
         datetime="$(sensor_read_one ${dir}/khatus_x4_sensor_datetime/out/datetime)"
         mpd="$(sensor_read_one ${dir}/khatus_x4_sensor_mpd/out/status)"
-        echo "E[${battery_state} ${battery_percentage}] [${mpd}] [$bluetooth_controllers $bluetooth_devices] ${datetime}"
+        mem="$(sensor_read_one ${dir}/khatus_x4_sensor_memory/out/percent_used)"
+        echo "E[${battery_state} ${battery_percentage}] M:${mem}% [${mpd}] [$bluetooth_controllers $bluetooth_devices] ${datetime}"
         sleep 1
     done
 }
-- 
2.20.1