def start(self, default_port):
"""
Run a WSGI server with the given application.
:param default_port: Port to bind to if none is specified in conf
"""
pgid = os.getpid()
os.setpgid(pgid, pgid)
def kill_children(*args):
"""Kills the entire process group."""
signal.signal(signal.SIGTERM, signal.SIG_IGN)
signal.signal(signal.SIGINT, signal.SIG_IGN)
self.running = False
os.killpg(pgid, signal.SIGTERM)
def hup(*args):
"""
Shuts down the server, but allows running requests to complete
"""
signal.signal(signal.SIGHUP, signal.SIG_IGN)
self.running = False
self.sock = get_socket(default_port)
os.umask(0o27) # ensure files are created with the correct privileges
self.logger = logging.getLogger('volt.wsgi.server')
if CONF.workers == 0:
# Useful for profiling, test, debug etc.
self.pool = self.create_pool()
self.pool.spawn_n(self._single_run, self.application, self.sock)
return
else:
self.logger.info(_("Starting %d workers") % CONF.workers)
signal.signal(signal.SIGTERM, kill_children)
signal.signal(signal.SIGINT, kill_children)
signal.signal(signal.SIGHUP, hup)
while len(self.children) < CONF.workers:
self.run_child()
def start(self, default_port):
"""
Run a WSGI server with the given application.
:param default_port: Port to bind to if none is specified in conf
"""
pgid = os.getpid()
os.setpgid(pgid, pgid)
def kill_children(*args):
"""Kills the entire process group."""
signal.signal(signal.SIGTERM, signal.SIG_IGN)
signal.signal(signal.SIGINT, signal.SIG_IGN)
self.running = False
os.killpg(pgid, signal.SIGTERM)
def hup(*args):
"""
Shuts down the server, but allows running requests to complete
"""
signal.signal(signal.SIGHUP, signal.SIG_IGN)
self.running = False
self.sock = get_socket(default_port)
os.umask(0o27) # ensure files are created with the correct privileges
self.logger = logging.getLogger('volt.wsgi.server')
if CONF.workers == 0:
# Useful for profiling, test, debug etc.
self.pool = self.create_pool()
self.pool.spawn_n(self._single_run, self.application, self.sock)
return
else:
self.logger.info(_("Starting %d workers") % CONF.workers)
signal.signal(signal.SIGTERM, kill_children)
signal.signal(signal.SIGINT, kill_children)
signal.signal(signal.SIGHUP, hup)
while len(self.children) < CONF.workers:
self.run_child()
#
# 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.
import threading
import eventlet
from eventlet import greenpool
from volt.openstack.common import log as logging
from volt.openstack.common import loopingcall
LOG = logging.getLogger(__name__)
def _thread_done(gt, *args, **kwargs):
"""Callback function to be passed to GreenThread.link() when we spawn()
Calls the :class:`ThreadGroup` to notify if.
"""
kwargs['group'].thread_done(kwargs['thread'])
class Thread(object):
"""Wrapper around a greenthread, that holds a reference to the
:class:`ThreadGroup`. The Thread will notify the :class:`ThreadGroup` when
it has done so it can be removed from the threads list.
"""
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
"""
Helpers for comparing version strings.
"""
import functools
import pkg_resources
from volt.openstack.common.gettextutils import _
from volt.openstack.common import log as logging
LOG = logging.getLogger(__name__)
class deprecated(object):
"""A decorator to mark callables as deprecated.
This decorator logs a deprecation message when the callable it decorates is
used. The message will include the release where the callable was
deprecated, the release where it may be removed and possibly an optional
replacement.
Examples:
1. Specifying the required deprecated release
>>> @deprecated(as_of=deprecated.ICEHOUSE)
