I use a wrapp scrip around pmc.
- use pmc as is, for example
"""
- example pmc outputs
$ pmc -u -b 0 'GET CURRENT_DATA_SET'
sending: GET CURRENT_DATA_SET
2c553c.fffe.0008b0-0 seq 0 RESPONSE MANAGMENT CURRENT_DATA_SET
stepsRemoved 1
offsetFromMaster 11111
meanPathDelay 11197.0
$ pmc -u -b 0 'GET TIME_STATUS_NP'
sending: GET TIME_STATUS_NP
2c553c.fffe.0008b0-0 seq 0 RESPONSE MANAGMENT TIME_STATUS_NP
master_offset 111
ingress_time 92954226412560
cumulativeScaledRateOffset +0.000000000
scaledLastGmPhaseChange 0
gmTimeBaseIndicator 0
lastGmPhaseChange 0x0000'0000000000000000.0000
gmPresent true
gmIdentity 99553c.fffe.0003c0
$ pmc -u -b 0 'GET PORT_DATA_SET'
sending: GET PORT_DATA_SET
2c553c.fffe.0003c0-1 seq 0 RESPONSE MANAGMENT PORT_DATA_SET
portIdentity 99553c.fffe.0003c0-1
portState MASTER
logMinDelayReqInterval 0
peerMeanPathDelay 0
logAnnounceInterval 0
announceReceiptTimeout 3
logSyncInterval 1
delayMechanism 1
logMinPdelayReqInterval 0
versionNumber 2
"""
- or use this script
output example which can be fed to other program easily
./show-ptp
SLAVE
SYNC
-106
994a00.fffe.040144
16878.0
--------
- cat show-ptp
#! /usr/bin/env python
import errno, os
import os.path
import time
import sys
import random
import subprocess
import time
import logging
"""
- example pmc outputs
$ pmc -u -b 0 'GET CURRENT_DATA_SET'
sending: GET CURRENT_DATA_SET
2c553c.fffe.0008b0-0 seq 0 RESPONSE MANAGMENT CURRENT_DATA_SET
stepsRemoved 1
offsetFromMaster 811103.0
meanPathDelay 11197.0
$ pmc -u -b 0 'GET TIME_STATUS_NP'
sending: GET TIME_STATUS_NP
2c553c.fffe.0008b0-0 seq 0 RESPONSE MANAGMENT TIME_STATUS_NP
master_offset 811036
ingress_time 92954226412560
cumulativeScaledRateOffset +0.000000000
scaledLastGmPhaseChange 0
gmTimeBaseIndicator 0
lastGmPhaseChange 0x0000'0000000000000000.0000
gmPresent true
gmIdentity 2c553c.fffe.0003c0
$ pmc -u -b 0 'GET PORT_DATA_SET'
sending: GET PORT_DATA_SET
2c553c.fffe.0003c0-1 seq 0 RESPONSE MANAGMENT PORT_DATA_SET
portIdentity 2c553c.fffe.0003c0-1
portState MASTER
logMinDelayReqInterval 0
peerMeanPathDelay 0
logAnnounceInterval 0
announceReceiptTimeout 3
logSyncInterval 1
delayMechanism 1
logMinPdelayReqInterval 0
versionNumber 2
"""
# doesn't have to be dict, in case we need a "keyword" based retrieval in the
future, so use dict instead of list
ptp_oper_dict = {
# [cmd, anchor keywords,...]
1: ["pmc -u -b 0 'GET PORT_DATA_SET'", 'portState'],
2: ["pmc -u -b 0 'GET TIME_STATUS_NP'", 'gmPresent',
'master_offset', 'gmIdentity'],
3: ["pmc -u -b 0 'GET CURRENT_DATA_SET'", 'meanPathDelay']
}
fake_result = [
[ 'MASTER',
'MASTER',
'0',
'2c553c.fffe.000550',
'0.0', ],
[ 'SLAVE',
'UNCALIBRATED',
'0',
'2c553c.fffe.000550',
'0.0', ]
]
unknown_result = [
'UNKNOWN',
'UNKNOWN',
'0',
'0',
'0.0',
]
# run subprocess and returns out, err, errcode
def run_shell2(dir, ctx, args):
cwd = os.getcwd()
os.chdir(dir)
process = subprocess.Popen(args, shell=True,
stdout=subprocess.PIPE, stderr=subprocess.PIPE)
out, err = process.communicate()
errcode = process.returncode
logging.debug('OK: [%s] %s' % (os.getcwd(), args))
os.chdir(cwd)
return out, err, errcode
def get_after_keword(s, keyword):
b,k,a = s.partition(keyword)
if k is '':
return -1, None
t = a.split('\n')
t1 = t[0].split()
return 0, ' '.join(t1)
def check_pmc_exist():
if os.path.isfile('/usr/bin/pmc'):
return 0
return 1
#
# output format: '\n' separated
# > getting> role/status, gmpresent, offset, gm id, pathdelay
# > returning> role, status, offset, gm id, pathdelay
#
def show_ptp_oper(debug):
result = []
r = check_pmc_exist()
if r != 0:
# return fake data
print '\n'.join(random.choice(fake_result))
return -1
len_dic = len(ptp_oper_dict)
for key in range(1,len_dic+1):
cmd = ptp_oper_dict[key][0]
search_word = ptp_oper_dict[key][1:]
logging.debug('running %s' % cmd)
out, err, errcode = run_shell2('.', None, cmd)
out = out.strip()
if errcode != 0:
print '\n'.join(unknown_result)
return -1
for item in search_word:
r, word = get_after_keword(out, item)
if r == -1:
print '\n'.join(unknown_result)
return -1
result.append(word)
tmp = result[0]
tmp1 = result[1]
if result[1] == "false" and result[0] == "MASTER":
result[0] = "MASTER"
else:
result[0] = "SLAVE"
result[1] = tmp
if tmp1 == "true":
if tmp == "SLAVE":
# state slave and gm present is true
result[1] = "SYNC"
elif tmp == "LISTENING":
# listening and gm present is true
result[1] = "HOLDOVER"
print '\n'.join(result)
return 0
if __name__ == '__main__':
logging.basicConfig(level=logging.INFO)
debug = 0
if len(sys.argv) > 1:
debug = 1
r = show_ptp_oper(debug)
sys.exit(r)
________________________________________
From: Robb <[email protected]>
Sent: Monday, June 29, 2015 1:12 PM
To: [email protected]
Subject: [Linuxptp-users] Is there a way to query ptp4l or phc2sys status?
I have synced the clocks between two machines quite well and was curious
if there is an easy way to query my slave machine from the command line
and determine if the clocks are in sync.
It is obvious to look at the logs and tell that they are currently in
sync, but I was hoping to not have to write a tool to scrape the logs,
also I really would prefer not to log the information anyway.
Does something like this exist?
Thanks.
------------------------------------------------------------------------------
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_______________________________________________
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------------------------------------------------------------------------------
Don't Limit Your Business. Reach for the Cloud.
GigeNET's Cloud Solutions provide you with the tools and support that
you need to offload your IT needs and focus on growing your business.
Configured For All Businesses. Start Your Cloud Today.
https://www.gigenetcloud.com/
_______________________________________________
Linuxptp-users mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/linuxptp-users
