event_log: turn id generation from a generator to a func callv1.13.2

Running lots of sync processes in parallel can hit the failure:
Fetching projects:  23% (124/523)Exception in thread Thread-201:
Traceback (most recent call last):
  File "/usr/lib/python2.7/threading.py", line 801, in __bootstrap_inner
    self.run()
  File "/usr/lib/python2.7/threading.py", line 754, in run
    self.__target(*self.__args, **self.__kwargs)
  File "/usr/local/src/repo/subcmds/sync.py", line 278, in _FetchProjectList
    success = self._FetchHelper(opt, project, *args, **kwargs)
  File "/usr/local/src/repo/subcmds/sync.py", line 357, in _FetchHelper
    start, finish, success)
  File "/usr/local/src/repo/event_log.py", line 104, in AddSync
    event = self.Add(project.relpath, task_name, start, finish, success)
  File "/usr/local/src/repo/event_log.py", line 74, in Add
    'id': (kind, next(self._next_id)),
ValueError: generator already executing

It looks like, while we lock the multiprocessing value correctly, the
generator that wraps the value isn't parallel safe.  Since we don't
have a way of doing that (as it's part of the language), turn it into
a plain function call instead.

Bug: https://crbug.com/gerrit/10293
Change-Id: I0db03601986ca0370a1699bab32adb03e7b2910a

0 files changed, 0 insertions, 0 deletions