本文整理匯總了Python中tornado.process方法的典型用法代碼示例。如果您正苦於以下問題：Python tornado.process方法的具體用法？Python tornado.process怎麽用？Python tornado.process使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類tornado的用法示例。
在下文中一共展示了tornado.process方法的5個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的Python代碼示例。
示例1: test_import_everything
# 需要導入模塊: import tornado [as 別名]
# 或者: from tornado import process [as 別名]
def test_import_everything(self):
# Test that all Tornado modules can be imported without side effects,
# specifically without initializing the default asyncio event loop.
# Since we can't tell which modules may have already beein imported
# in our process, do it in a subprocess for a clean slate.
proc = subprocess.Popen([sys.executable], stdin=subprocess.PIPE)
proc.communicate(_import_everything)
self.assertEqual(proc.returncode, 0) 示例2: get_cwd
# 需要導入模塊: import tornado [as 別名]
# 或者: from tornado import process [as 別名]
def get_cwd(self):
"""Get the current working directory for our process
Override in subclass to launch the process in a directory
other than the current.
"""
return os.getcwd() 示例3: get_env
# 需要導入模塊: import tornado [as 別名]
# 或者: from tornado import process [as 別名]
def get_env(self):
'''Set up extra environment variables for process. Typically
overridden in subclasses.'''
return {} 示例4: get_timeout
# 需要導入模塊: import tornado [as 別名]
# 或者: from tornado import process [as 別名]
def get_timeout(self):
"""
Return timeout (in s) to wait before giving up on process readiness
"""
return 5 示例5: ensure_process
# 需要導入模塊: import tornado [as 別名]
# 或者: from tornado import process [as 別名]
def ensure_process(self):
"""
Start the process
"""
# We don't want multiple requests trying to start the process at the same time
# FIXME: Make sure this times out properly?
# Invariant here should be: when lock isn't being held, either 'proc' is in state &
# running, or not.
with (await self.state['proc_lock']):
if 'proc' not in self.state:
# FIXME: Prevent races here
# FIXME: Handle graceful exits of spawned processes here
cmd = self.get_cmd()
server_env = os.environ.copy()
# Set up extra environment variables for process
server_env.update(self.get_env())
timeout = self.get_timeout()
proc = SupervisedProcess(self.name, *cmd, env=server_env, ready_func=self._http_ready_func, ready_timeout=timeout, log=self.log)
self.state['proc'] = proc
try:
await proc.start()
is_ready = await proc.ready()
if not is_ready:
await proc.kill()
raise web.HTTPError(500, 'could not start {} in time'.format(self.name))
except:
# Make sure we remove proc from state in any error condition
del self.state['proc']
raise