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#!/usr/bin/python
import string, os, time, sys, socket
#
# Gather free disk and memory info an output as an XML document.
#
# See gr_monitor license in the gr_monitor.1 man page for licensing.
#
# michael@actrix.gen.nz, Nov 1999 (for Gentoo South Pacific Limited).
#
def printdtd():
print '''<?xml version="1.0"?>
<!DOCTYPE datastream [
<!ELEMENT datastream (dataset)*>
<!ELEMENT dataset (group)*>
<!ATTLIST dataset
id CDATA #REQUIRED>
<!ELEMENT group (item)*>
<!ATTLIST group
id CDATA #REQUIRED>
<!ELEMENT item (total, used, free, cached, buffers)>
<!ATTLIST item
id CDATA #REQUIRED>
<!ELEMENT size EMPTY>
<!ATTLIST size
data CDATA #REQUIRED>
<!ELEMENT used EMPTY>
<!ATTLIST used
data CDATA #REQUIRED>
<!ELEMENT avail EMPTY>
<!ATTLIST avail
data CDATA #REQUIRED>
]>'''
def printdf():
print '<group id="Disk Space">'
dfInput = os.popen("df -k", "r");
colnames = string.split(dfInput.readline());
biggest = 0
dflist = []
for line in dfInput.readlines():
cols = string.split(line)
(size, used, avail) = map(int, cols[1:4])
filesys = string.join(cols[5:])
dflist.append((filesys, size, used, avail))
if size > biggest:
biggest = size
dfInput.close()
for data in dflist:
(filesys, size, used, avail) = data;
if string.strip(filesys) != "/":
filesys = filesys[string.rfind(filesys,"/") + 1:]
print '''
<item id="%s">
<free data="%f"/>
<used data="%f"/>
<total data="%f"/>
</item>
''' % ( filesys,
100.0 * avail / biggest,
100.0 * used / biggest,
100.0 * size / biggest )
print '</group>'
def printfree():
print '<group id="Memory">'
procMeminfo = open("/proc/meminfo", "r");
procMeminfo.readline();
line = procMeminfo.readline();
(total, used, free,
shared, buffers, cached) = map(int, string.split(line)[1:])
line = procMeminfo.readline();
(swapTotal, swapUsed, swapFree) = map(int, string.split(line)[1:])
procMeminfo.close();
print '''
<item id="RAM">
<free data="%f"/>
<cached data="%f"/>
<buffers data="%f"/>
<used data="%f"/>
<total data="100.0"/>
</item>
''' % (
(100.0 * free) / total,
(100.0 * cached) / total,
(100.0 * buffers) / total,
(100.0 * used - buffers) / total
)
print '</group>'
print '<group id="Swap">'
print '''
<item id="Swap">
<free data="%f"/>
<used data="%f"/>
<total data="%f"/>
</item>
''' % (
(100.0 * swapFree) / total,
(100.0 * swapUsed) / total,
(100.0 * swapTotal) / total,
)
print '</group>'
# Main Program starts here
if len(sys.argv) > 1 and sys.argv[1] == "-sleep":
sleepSecs = int(sys.argv[2])
else:
sleepSecs = 5
hostname = socket.gethostname()
try:
printdtd()
print "<datastream>"
while 1:
when = time.asctime(time.localtime(time.time()))
print '<dataset id="%s %s">' % (hostname, when)
printdf()
printfree()
print '</dataset>'
sys.stdout.flush()
time.sleep(sleepSecs)
print "</datastream>"
except IOError:
sys.exit(-1)
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