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### Author: Dag Wieers <dag@wieers.com>
class dstat_plugin(dstat):
"""
Number of packets received and send per interface.
"""
def __init__(self):
self.nick = ('#recv', '#send')
self.type = 'd'
self.width = 5
self.scale = 1000
self.totalfilter = re.compile('^(lo|bond\d+|face|.+\.\d+)$')
self.open('/proc/net/dev')
self.cols = 2
def discover(self, *objlist):
ret = []
for l in self.splitlines(replace=':'):
if len(l) < 17: continue
if l[2] == '0' and l[10] == '0': continue
name = l[0]
if name not in ('lo', 'face'):
ret.append(name)
ret.sort()
for item in objlist: ret.append(item)
return ret
def vars(self):
ret = []
if op.netlist:
varlist = op.netlist
elif not op.full:
varlist = ('total',)
else:
varlist = self.discover
# if len(varlist) > 2: varlist = varlist[0:2]
varlist.sort()
for name in varlist:
if name in self.discover + ['total', 'lo']:
ret.append(name)
if not ret:
raise Exception('No suitable network interfaces found to monitor')
return ret
def name(self):
return ['pkt/'+name for name in self.vars]
def extract(self):
self.set2['total'] = [0, 0]
for l in self.splitlines(replace=':'):
if len(l) < 17: continue
if l[2] == '0' and l[10] == '0': continue
name = l[0]
if name in self.vars :
self.set2[name] = ( int(l[2]), int(l[10]) )
if not self.totalfilter.match(name):
self.set2['total'] = ( self.set2['total'][0] + int(l[2]), self.set2['total'][1] + int(l[10]))
if update:
for name in self.set2:
self.val[name] = list(map(lambda x, y: (y - x) * 1.0 / elapsed, self.set1[name], self.set2[name]))
if step == op.delay:
self.set1.update(self.set2)
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