Mercurial > templog
annotate py/receive.py @ 580:2ab866ee4f8c
fridge sensor is back
| author | Matt Johnston <matt@ucc.asn.au> |
|---|---|
| date | Mon, 30 Nov 2015 21:40:57 +0800 |
| parents | 5201f441bf4a |
| children |
| rev | line source |
|---|---|
| 493 | 1 #!/usr/bin/env python |
| 2 | |
| 3 import params | |
| 4 import json | |
| 5 import sys | |
| 6 import tempfile | |
| 7 import signal | |
| 8 import os | |
| 9 | |
| 10 import config | |
| 11 | |
| 12 | |
| 13 def same_type(a, b): | |
| 14 ta = type(a) | |
| 15 tb = type(b) | |
| 16 | |
| 17 if ta == int: | |
| 18 ta = float | |
| 19 if tb == int: | |
| 20 tb = float | |
| 21 | |
| 22 return (ta == tb) | |
| 23 | |
| 24 def main(): | |
| 25 | |
| 26 i = sys.stdin.read() | |
| 27 new_params = json.loads(i) | |
| 28 | |
| 29 def_params = params.Params() | |
| 30 | |
| 529 | 31 if def_params.keys() != new_params.keys(): |
| 32 diff = def_params.keys() ^ new_params.keys() | |
| 493 | 33 return "Mismatching params, %s" % str(diff) |
| 34 | |
| 35 for k, v in new_params.items(): | |
| 36 if not same_type(v, def_params[k]): | |
| 37 return "Bad type for %s" % k | |
| 38 | |
| 39 dir = os.path.dirname(config.PARAMS_FILE) | |
| 40 | |
| 41 try: | |
| 42 t = tempfile.NamedTemporaryFile(prefix='config', | |
| 43 dir = dir, | |
| 44 delete = False) | |
| 45 | |
| 46 t.write(json.dumps(new_params, sort_keys=True, indent=4)+'\n') | |
|
495
905bbab632f7
Make sure we close descriptor before rename
Matt Johnston <matt@ucc.asn.au>
parents:
493
diff
changeset
|
47 name = t.name |
|
905bbab632f7
Make sure we close descriptor before rename
Matt Johnston <matt@ucc.asn.au>
parents:
493
diff
changeset
|
48 t.close() |
| 493 | 49 |
|
495
905bbab632f7
Make sure we close descriptor before rename
Matt Johnston <matt@ucc.asn.au>
parents:
493
diff
changeset
|
50 os.rename(name, config.PARAMS_FILE) |
| 529 | 51 except Exception as e: |
| 493 | 52 return "Problem: %s" % e |
| 53 | |
| 54 try: | |
| 55 pid = int(open('%s/tempserver.pid' % dir, 'r').read()) | |
| 56 if pid < 2: | |
| 57 return "Bad pid %d" % pid | |
| 58 os.kill(pid, signal.SIGHUP) | |
| 529 | 59 except Exception as e: |
| 493 | 60 return "HUP problem: %s" % e |
| 61 | |
| 62 return 'Good Update' | |
| 63 | |
| 64 if __name__ == '__main__': | |
| 529 | 65 print(main()) |
| 493 | 66 |