本文整理汇总了Python中twisted.python.threadpool.ThreadPool.callInThread方法的典型用法代码示例。如果您正苦于以下问题：Python ThreadPool.callInThread方法的具体用法？Python ThreadPool.callInThread怎么用？Python ThreadPool.callInThread使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类twisted.python.threadpool.ThreadPool的用法示例。
在下文中一共展示了ThreadPool.callInThread方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: AddressResolver
# 需要导入模块: from twisted.python.threadpool import ThreadPool [as 别名]
# 或者: from twisted.python.threadpool.ThreadPool import callInThread [as 别名]
class AddressResolver(object):
pool = None
def __init__(self, minthreads=1, maxthreads=4):
self.pool = ThreadPool(minthreads=minthreads, maxthreads=maxthreads)
# unclosed ThreadPool leads to reactor hangs at shutdown
# this is a problem in many situation, so better enforce pool stop here
reactor.addSystemEventTrigger(
"before", "shutdown", self.pool.stop
)
self.pool.start()
def get_host_by_name(self, address):
d = defer.Deferred()
def func():
try:
reactor.callFromThread(
d.callback, socket.gethostbyname(address)
)
except Exception as e:
reactor.callFromThread(d.errback, e)
self.pool.callInThread(func)
return d
def close(self):
self.pool.stop()示例2: pylabsTaskletRunner
# 需要导入模块: from twisted.python.threadpool import ThreadPool [as 别名]
# 或者: from twisted.python.threadpool.ThreadPool import callInThread [as 别名]
class pylabsTaskletRunner(TaskletRunner):
def __init__(self, engine, threadpoolsize=10):
self.engine = engine
# Job queue
self._queue = Queue.Queue()
# Threadpool
self._runners = list()
self._threadpool = None
reactor.addSystemEventTrigger('after', 'startup', self.start,
threadpoolsize)
reactor.addSystemEventTrigger('before', 'shutdown',
self.shutdown)
def start(self, threadpoolsize):
self._threadpool = ThreadPool(minthreads=threadpoolsize,
maxthreads=threadpoolsize + 1)
# Set up threadpool
q.logger.log('[PMTASKLETS] Constructing taskletserver threadpool', 6)
self._threadpool.start()
for i in xrange(threadpoolsize):
runner = TaskletRunnerThread(self._queue)
self._runners.append(runner)
self._threadpool.callInThread(runner.run)
self._running = True
def queue(self, params, author=None, name=None, tags=None, priority=-1,
logname=None):
author = author or '*'
name = name or '*'
tags = tags or list()
priority = priority if priority > -1 else -1
q.logger.log('[PMTASKLETS] Queue: params=%s, author=%s, name=%s, '
'tags=%s, priority=%d' % \
(params, author, name, tags, priority), 4)
# Wrap the tasklet executor methods so the appname (for logging) is set
# correctly
def logwrapper(func):
@functools.wraps(func)
def _wrapped(*args, **kwargs):
import pylabs
oldappname = pylabs.q.application.appname
if logname:
pylabs.q.application.appname = \
'applicationserver:pmtasklets:%s' % logname
else:
pylabs.q.application.appname = \
'applicationserver:pmtasklets'
try:
ret = func(*args, **kwargs)
finally:
pylabs.q.application.appname = oldappname
return ret
return _wrapped
execute_args = {
'author': author,
'name': name,
'tags': tags,
'priority': priority,
'params': params,
'wrapper': logwrapper,
}
#Append list of tasklet methods to run to the queue
self._queue.put((self.engine, execute_args, ))
def shutdown(self):
q.logger.log('Shutting down tasklet runner', 5)
self._running = False
#Tell all threads to stop running
for runner in self._runners:
runner.keep_running = False
self._threadpool.stop()
@classmethod
def install(cls):
log.msg('Installing pylabs tasklet runner')
import applicationserver
applicationserver.TaskletRunner = cls