| Index: third_party/gsutil/gslib/thread_pool.py
|
| diff --git a/third_party/gsutil/gslib/thread_pool.py b/third_party/gsutil/gslib/thread_pool.py
|
| deleted file mode 100644
|
| index b9fcfd4e705c0a1a3877f9be427d739e81e94947..0000000000000000000000000000000000000000
|
| --- a/third_party/gsutil/gslib/thread_pool.py
|
| +++ /dev/null
|
| @@ -1,79 +0,0 @@
|
| -# Copyright 2011 Google Inc. All Rights Reserved.
|
| -#
|
| -# Licensed under the Apache License, Version 2.0 (the "License");
|
| -# you may not use this file except in compliance with the License.
|
| -# You may obtain a copy of the License at
|
| -#
|
| -# http://www.apache.org/licenses/LICENSE-2.0
|
| -#
|
| -# Unless required by applicable law or agreed to in writing, software
|
| -# distributed under the License is distributed on an "AS IS" BASIS,
|
| -# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
| -# See the License for the specific language governing permissions and
|
| -# limitations under the License.
|
| -
|
| -"""Basic thread pool with exception handler."""
|
| -
|
| -import logging
|
| -import Queue
|
| -import threading
|
| -
|
| -
|
| -# Magic values used to cleanly bring down threads.
|
| -_THREAD_EXIT_MAGIC = ('Clean', 'Thread', 'Exit')
|
| -
|
| -
|
| -def _DefaultExceptionHandler(e):
|
| - logging.exception(e)
|
| -
|
| -
|
| -class Worker(threading.Thread):
|
| - """Thread executing tasks from a given task's queue."""
|
| -
|
| - def __init__(self, tasks, exception_handler):
|
| - threading.Thread.__init__(self)
|
| - self.tasks = tasks
|
| - self.daemon = True
|
| - self.exception_handler = exception_handler
|
| - self.start()
|
| -
|
| - def run(self):
|
| - while True:
|
| - func, args, kargs = self.tasks.get()
|
| -
|
| - # Listen for magic value indicating thread exit.
|
| - if (func, args, kargs) == _THREAD_EXIT_MAGIC:
|
| - break
|
| -
|
| - try:
|
| - func(*args, **kargs)
|
| - except Exception, e:
|
| - self.exception_handler(e)
|
| - finally:
|
| - self.tasks.task_done()
|
| -
|
| -
|
| -class ThreadPool(object):
|
| - """Pool of threads consuming tasks from a queue."""
|
| -
|
| - def __init__(self, num_threads, exception_handler=_DefaultExceptionHandler):
|
| - self.tasks = Queue.Queue(num_threads)
|
| - self.threads = []
|
| - for _ in range(num_threads):
|
| - self.threads.append(Worker(self.tasks, exception_handler))
|
| -
|
| - def AddTask(self, func, *args, **kargs):
|
| - """Add a task to the queue."""
|
| - self.tasks.put((func, args, kargs))
|
| -
|
| - def WaitCompletion(self):
|
| - """Wait for completion of all the tasks in the queue."""
|
| - self.tasks.join()
|
| -
|
| - def Shutdown(self):
|
| - """Shutdown the thread pool."""
|
| - for thread in self.threads:
|
| - self.tasks.put(_THREAD_EXIT_MAGIC)
|
| -
|
| - for thread in self.threads:
|
| - thread.join()
|
|
|