nmelone/datalogger-POC
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write PID to file

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This commit is contained in:
Patrick McDonagh
2016-12-05 15:12:14 -06:00
parent 912c8b17cf
commit a733ec4d9c
1 changed files with 16 additions and 1 deletions
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17
dataLogger.py
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@@ -9,6 +9,8 @@ from pycomm_helper.alarm import AnalogAlarm, bitAlarm
import traceback import traceback
import json import json
import requests import requests
import os
import sys
from requests.packages.urllib3.exceptions import InsecureRequestWarning from requests.packages.urllib3.exceptions import InsecureRequestWarning
from requests.packages.urllib3.exceptions import InsecurePlatformWarning from requests.packages.urllib3.exceptions import InsecurePlatformWarning
@@ -16,6 +18,7 @@ from requests.packages.urllib3.exceptions import InsecurePlatformWarning
requests.packages.urllib3.disable_warnings(InsecureRequestWarning) requests.packages.urllib3.disable_warnings(InsecureRequestWarning)
requests.packages.urllib3.disable_warnings(InsecurePlatformWarning) requests.packages.urllib3.disable_warnings(InsecurePlatformWarning)
# DEFAULTS # DEFAULTS
API_METHOD = "https" API_METHOD = "https"
API_ADDRESS = "localhost" API_ADDRESS = "localhost"
@@ -316,4 +319,16 @@ def main():
print("Error during loop: {}".format(e)) print("Error during loop: {}".format(e))
traceback.print_exc() traceback.print_exc()
if __name__ == '__main__': if __name__ == '__main__':
main() pid = str(os.getpid())
pidfile = "/root/datalogger.pid"
if os.path.isfile(pidfile):
print "%s already exists, exiting" % pidfile
sys.exit()
try:
file(pidfile, 'w').write(pid)
main()
except IOError:
print("Unable to write the PID to {}. Running the datalogger anyway.".format(pidfile))
main()