From fdc1d797cdf3ebcac11df911c6ea270a96f384f8 Mon Sep 17 00:00:00 2001
From: Simon Rettberg
Date: Mon, 28 Oct 2019 17:27:07 +0100
Subject: Add mem module

---
 modules/mem.inc | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)
 create mode 100644 modules/mem.inc

diff --git a/modules/mem.inc b/modules/mem.inc
new file mode 100644
index 0000000..9a94a17
--- /dev/null
+++ b/modules/mem.inc
@@ -0,0 +1,25 @@
+#!/bin/ash
+
+# Get everything from /proc/meminfo suitable for eval to import into environment
+# (Filters a few values due to invalid chars)
+# With no arguments, returns everything, otherwise only those given as arguments
+mem_env() {
+	local a e
+	if [ "$#" -eq 0 ]; then
+		e='[a-zA-Z0-9]+'
+	else
+		# Set empty first in case a value is missing
+		# TODO Within awk script (collect, check, then output)
+		for a in "$@"; do
+			echo "$a="
+		done
+		e="(${*// /|})"
+	fi
+	awk '{a=substr($1, 1, length($1)-1); if (a ~ /^'"$e"'$/ && $2 ~ /^[0-9]+$/) print a "=" $2}' "/proc/meminfo"
+}
+
+# Get a single entry from /proc/meminfo
+mem_get() {
+	awk '{if ($1 == "'"$1"':") { print $2; exit; }}' "/proc/meminfo"
+}
+
-- 
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