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authorMichael Stapelberg <stapelberg@users.noreply.github.com>2015-03-16 22:47:51 +0100
committerMichael Stapelberg <stapelberg@users.noreply.github.com>2015-03-16 22:47:51 +0100
commit5cdbb3045b4524d12f310c4c040a09489fefb57b (patch)
tree4002f98f794fed09e5f9a9b838ad2622e65b775a /contrib
parenteb13374063adb4db59bd15e65402731a2857323e (diff)
parent519d7f6d63a236b3a587ead395c8ad144611871e (diff)
Merge pull request #8 from azuwis/master
Add contrib/net-speed, a reimplementation of contrib/measure-net-speed.bash
Diffstat (limited to 'contrib')
-rwxr-xr-xcontrib/net-speed105
1 files changed, 105 insertions, 0 deletions
diff --git a/contrib/net-speed b/contrib/net-speed
new file mode 100755
index 0000000..3b7b30b
--- /dev/null
+++ b/contrib/net-speed
@@ -0,0 +1,105 @@
+#!/bin/sh
+# Copyright (c) 2014 Zhong Jianxin <azuwis@gmail.com>
+
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+# THE SOFTWARE.
+
+# Thank Stefan Breunig for the original implementation, see
+# contrib/measure-net-speed.bash.
+
+# i3status.conf should contain:
+# general {
+# output_format = i3bar
+# }
+
+# i3 config looks like this:
+# bar {
+# status_command exec /usr/share/doc/i3status/contrib/net-speed
+# }
+
+# Single interface
+#ifaces="eth0"
+
+# Multiple interfaces
+#ifaces="eth0 wlan0"
+
+# Auto detect
+ifaces=$(ls /sys/class/net | grep -E '^(eth|wlan)')
+
+# Interval must be the same as in i3status.conf
+#interval=5
+
+# Auto detect
+if [ -f ~/.i3status.conf ]; then
+ i3status_conf=~/.i3status.conf
+else
+ i3status_conf="/etc/i3status.conf"
+fi
+interval=$(grep -o '^[[:space:]]*interval[[:space:]]*=[[:space:]]*[[:digit:]]\+' $i3status_conf | grep -o '[[:digit:]]\+')
+if [ x"$interval" = x ]; then
+ interval=5
+fi
+
+last_rx=0
+last_tx=0
+rate=""
+
+readable() {
+ local byte=$1
+ local kib=$(( byte >> 10 ))
+ if [ "$kib" -gt 1024 ]; then
+ local mib_int=$(( kib >> 10 ))
+ local mib_dec=$(( kib % 1024 * 976 / 10000 ))
+ if [ "$mib_dec" -lt 10 ]; then
+ mib_dec="0${mib_dec}"
+ fi
+ echo "${mib_int}.${mib_dec}M"
+ else
+ echo "${kib}K"
+ fi
+}
+
+update_rate() {
+ local rx=0
+ local tx=0
+ for iface in $ifaces; do
+ local tmp_rx
+ local tmp_tx
+ local stat="/sys/class/net/${iface}/statistics"
+ read tmp_rx < "${stat}/rx_bytes"
+ read tmp_tx < "${stat}/tx_bytes"
+ rx=$(( rx + tmp_rx ))
+ tx=$(( tx + tmp_tx ))
+ done
+ rate="$(readable $(( (rx - last_rx) / interval )))↓ $(readable $(( (tx - last_tx) / interval )))↑"
+ last_rx=$rx
+ last_tx=$tx
+}
+
+# while :; do
+# update_rate
+# echo "$rate"
+# sleep "$interval"
+# done
+
+i3status | (read line && echo "$line" && read line && echo "$line" && read line && echo "$line" && update_rate && while :
+do
+ read line
+ update_rate
+ echo ",[{\"full_text\":\"${rate}\" },${line#,\[}" || exit 1
+done)