osmclient/common/utils.py

   1 # Copyright 2017 Sandvine
   2 #
   3 # All Rights Reserved.
   4 #
   5 #    Licensed under the Apache License, Version 2.0 (the "License"); you may
   6 #    not use this file except in compliance with the License. You may obtain
   7 #    a copy of the License at
   8 #
   9 #         http://www.apache.org/licenses/LICENSE-2.0
  10 #
  11 #    Unless required by applicable law or agreed to in writing, software
  12 #    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
  13 #    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
  14 #    License for the specific language governing permissions and limitations
  15 #    under the License.
  16
  17 import time
  18
  19
  20 def wait_for_value(func, result=True, wait_time=10, catch_exception = None ):
  21     maxtime = time.time() + wait_time
  22     while time.time() < maxtime:
  23         try:
  24             if func() == result:
  25                 return True
  26         except catch_exception as inst:
  27             pass
  28         time.sleep(1)
  29     try:
  30         return func() == result
  31     except catch_exception as inst:
  32         return False