comparison: instance.py
instance.py
- changeset 1
- 4cdc9c1f6b28
- parent 0
- f5aecaad0bcf
- child 2
- e343594c0014
equal
deleted
inserted
replaced
| 0:f5aecaad0bcf | 1:4cdc9c1f6b28 |
|---|---|
| 1 # | |
| 2 # Borgend borg launcher / processor | |
| 3 # | |
| 4 | |
| 5 import json | |
| 6 import subprocess | |
| 7 import config | |
| 8 import Queue | |
| 9 import Thread | |
| 10 | |
| 11 def linereader(stream, instance, queue) | |
| 12 # What to do on error? | |
| 13 for line in iter(stream.readline, b''): | |
| 14 status=json.loads(line) | |
| 15 queue.put({'identifier': instance.identifier, | |
| 16 'operation': instance.operation, | |
| 17 'status': status}) | |
| 18 out.close() | |
| 19 | |
| 20 class BorgInstance: | |
| 21 | |
| 22 def __init__(self, identifier, operation, args): | |
| 23 self.identifier=identifier; | |
| 24 self.operation=operation; | |
| 25 self.args=args; | |
| 26 | |
| 27 def construct_cmdline(self): | |
| 28 ??? | |
| 29 | |
| 30 def launch(self, queue): | |
| 31 # What to do with stderr? Is it needed? | |
| 32 self.proc=subprocess.Popen(self.construct_cmdline(), | |
| 33 stdout=subprocess.PIPE, | |
| 34 stderr=subprocess.PIPE) | |
| 35 linereaderargs=(self.proc.stdout, self, queue) | |
| 36 self.t=Thread(target=linereader, args=linereaderargs) | |
| 37 t.daemon=True | |
| 38 t.start() | |
| 39 | |
| 40 def read_output(): | |
| 41 try: | |
| 42 obj=self.queue.get_nowait() | |
| 43 except Empty: | |
| 44 obj=Empty | |
| 45 return obj | |
| 46 | |
| 47 | |
| 48 | |
| 49 |
