openstack/deb-python-eventlet
Code Issues Proposed changes

Some tweaks I made while importing back into svn

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This commit is contained in:
donovan
2008-05-21 09:51:03 -07:00
parent ec139e201d
commit 70e4dd89d6
5 changed files with 2 additions and 394 deletions
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2
eventlet/api.py
View File

@@ -299,7 +299,7 @@ def get_default_hub():
pass
import select
if 0:#hasattr(select, 'poll'):
if hasattr(select, 'poll'):
import eventlet.hubs.poll
return eventlet.hubs.poll
else:

1
eventlet/httpc.py
View File

@@ -500,7 +500,6 @@ class HttpSuite(object):
raise klass(params)
def _get_response_body(self, params, connection):
print "CONENCTO", connection
if connection is None:
connection = connect(params.url, params.use_proxy)
connection.request(params.method, params.path, params.body,

227
eventlet/runloop.py
View File

@@ -1,227 +0,0 @@
"""\
@file runloop.py
@author Bob Ippolito
Defines the core eventlet runloop. The runloop keeps track of scheduled
events and observers which watch for specific portions of the runloop to
be executed.
Copyright (c) 2005-2006, Bob Ippolito
Copyright (c) 2007, Linden Research, Inc.
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
"""
import time
import bisect
import sys
import traceback
import greenlet
from eventlet.timer import Timer
class RunLoop(object):
SYSTEM_EXCEPTIONS = (KeyboardInterrupt, SystemExit)
def __init__(self, wait=None, clock=None):
if clock is None:
clock = self.default_clock()
self.clock = clock
if wait is None:
wait = self.default_wait
self.wait = wait
self.stopping = False
self.running = False
self.timers = []
self.timers_by_greenlet = {}
self.next_timers = []
self.observers = {}
self.observer_modes = {
'entry': [],
'before_timers': [],
'before_waiting': [],
'after_waiting': [],
'exit': [],
}
def default_wait(self, time):
return None
def default_clock(self):
return time.time
def default_sleep(self):
return 60.0
def sleep_until(self):
t = self.timers
if not t:
return None
return t[0][0]
def run(self):
"""Run the runloop until abort is called.
"""
if self.running:
raise RuntimeError("Already running!")
try:
self.running = True
self.stopping = False
self.fire_observers('entry')
while not self.stopping:
self.prepare_timers()
self.fire_observers('before_timers')
self.fire_timers(self.clock())
self.prepare_timers()
wakeup_when = self.sleep_until()
if wakeup_when is None:
sleep_time = self.default_sleep()
else:
sleep_time = wakeup_when - self.clock()
if sleep_time > 0:
self.fire_observers('before_waiting')
self.wait(sleep_time)
self.fire_observers('after_waiting')
else:
self.wait(0)
else:
del self.timers[:]
del self.next_timers[:]
self.fire_observers('exit')
finally:
self.running = False
self.stopping = False
def abort(self):
"""Stop the runloop. If run is executing, it will exit after completing
the next runloop iteration.
"""
if self.running:
self.stopping = True
def add_observer(self, observer, *modes):
"""Add an event observer to this runloop with the given modes.
Valid modes are:
entry: The runloop is being entered.
before_timers: Before the expired timers for this iteration are executed.
before_waiting: Before waiting for the calculated wait_time
where nothing will happen.
after_waiting: After waiting, immediately before starting the top of the
runloop again.
exit: The runloop is exiting.
If no mode is passed or mode is all, the observer will be fired for every
event type.
"""
if not modes or modes == ('all',):
modes = tuple(self.observer_modes)
self.observers[observer] = modes
for mode in modes:
self.observer_modes[mode].append(observer)
def remove_observer(self, observer):
"""Remove a previously registered observer from all event types.
"""
for mode in self.observers.pop(observer, ()):
self.observer_modes[mode].remove(observer)
def squelch_observer_exception(self, observer, exc_info):
traceback.print_exception(*exc_info)
print >>sys.stderr, "Removing observer: %r" % (observer,)
self.remove_observer(observer)
def fire_observers(self, activity):
for observer in self.observer_modes[activity]:
try:
observer(self, activity)
except self.SYSTEM_EXCEPTIONS:
raise
except:
self.squelch_observer_exception(observer, sys.exc_info())
def squelch_timer_exception(self, timer, exc_info):
traceback.print_exception(*exc_info)
print >>sys.stderr, "Timer raised: %r" % (timer,)
def _add_absolute_timer(self, when, info):
# the 0 placeholder makes it easy to bisect_right using (now, 1)
self.next_timers.append((when, 0, info))
def add_timer(self, timer):
scheduled_time = self.clock() + timer.seconds
self._add_absolute_timer(scheduled_time, timer)
current_greenlet = greenlet.getcurrent()
if current_greenlet not in self.timers_by_greenlet:
self.timers_by_greenlet[current_greenlet] = {}
self.timers_by_greenlet[current_greenlet][timer] = True
timer.greenlet = current_greenlet
return scheduled_time
def prepare_timers(self):
ins = bisect.insort_right
t = self.timers
for item in self.next_timers:
ins(t, item)
del self.next_timers[:]
def schedule_call(self, seconds, cb, *args, **kw):
"""Schedule a callable to be called after 'seconds' seconds have
elapsed.
seconds: The number of seconds to wait.
cb: The callable to call after the given time.
*args: Arguments to pass to the callable when called.
**kw: Keyword arguments to pass to the callable when called.
"""
t = Timer(seconds, cb, *args, **kw)
self.add_timer(t)
return t
def fire_timers(self, when):
t = self.timers
last = bisect.bisect_right(t, (when, 1))
i = 0
for i in xrange(last):
timer = t[i][2]
try:
try:
timer()
except self.SYSTEM_EXCEPTIONS:
raise
except:
self.squelch_timer_exception(timer, sys.exc_info())
finally:
try:
del self.timers_by_greenlet[timer.greenlet][timer]
except KeyError:
pass
del t[:last]
def cancel_timers(self, greenlet):
if greenlet not in self.timers_by_greenlet:
return
for timer in self.timers_by_greenlet[greenlet]:
if not timer.cancelled and timer.seconds:
## If timer.seconds is 0, this isn't a timer, it's
## actually eventlet's silly way of specifying whether
## a coroutine is "ready to run" or not.
timer.cancel()
print 'Runloop cancelling left-over timer %s' % timer
del self.timers_by_greenlet[greenlet]

157
eventlet/runloop_test.py
View File

@@ -1,157 +0,0 @@
"""\
@file runloop_test.py
@author Donovan Preston
Copyright (c) 2006-2007, Linden Research, Inc.
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
"""
import sys
import time
import StringIO
import unittest
from eventlet import runloop
class TestRunloop(unittest.TestCase):
mode = 'static'
def test_empty(self):
r = runloop.RunLoop()
r.schedule_call(0, r.abort)
r.run()
assert not r.running
def test_timer(self):
r = runloop.RunLoop()
r.schedule_call(0.125, r.abort)
start_time = time.time()
r.run()
assert time.time() - start_time >= 0.125
assert not r.running
def test_observer(self):
observed = []
r = runloop.RunLoop()
r.add_observer(lambda runloop, activity: observed.append(activity))
r.schedule_call(0, r.abort)
r.run()
assert observed == ['entry', 'before_timers', 'before_waiting', 'after_waiting', 'exit']
assert not r.running
def test_remove_observer(self):
r = runloop.RunLoop()
observed = []
def observe(runloop, mode):
observed.append(mode)
r.remove_observer(observe)
looped = []
def run_loop_twice(runloop, mode):
if looped:
r.abort()
else:
looped.append(True)
r.add_observer(observe, 'before_timers')
r.add_observer(run_loop_twice, 'after_waiting')
r.run()
assert len(observed) == 1
assert not r.running
def test_observer_exception(self):
r = runloop.RunLoop()
observed = []
def observe(runloop, mode):
observed.append(mode)
raise Exception("Squelch me please")
looped = []
def run_loop_twice(runloop, mode):
if looped:
r.abort()
else:
looped.append(True)
saved = sys.stderr
sys.stderr = err = StringIO.StringIO()
r.add_observer(observe, 'before_timers')
r.add_observer(run_loop_twice, 'after_waiting')
r.run()
err.seek(0)
sys.stderr = saved
assert len(observed) == 1
assert err.read()
assert not r.running
def test_timer_exception(self):
r = runloop.RunLoop()
observed = []
def timer():
observed.append(True)
raise Exception("Squelch me please")
looped = []
def run_loop_twice(runloop, mode):
if looped:
r.abort()
else:
looped.append(True)
saved = sys.stderr
sys.stderr = err = StringIO.StringIO()
r.schedule_call(0, timer)
r.add_observer(run_loop_twice, 'after_waiting')
r.run()
err.seek(0)
sys.stderr = saved
assert len(observed) == 1
assert err.read()
assert not r.running
def test_timer_system_exception(self):
r = runloop.RunLoop()
def timer():
raise SystemExit
r.schedule_call(0, timer)
caught = []
try:
r.run()
except SystemExit:
caught.append(True)
assert caught
assert not r.running
if __name__ == '__main__':
unittest.main()

9
setup.py
View File

@@ -1,7 +1,7 @@
#!/usr/bin/env python
from setuptools import Extension, find_packages, setup
from setuptools import find_packages, setup
setup(
@@ -27,10 +27,3 @@ setup(
"Intended Audience :: Developers",
"Development Status :: 4 - Beta"]
)
setup(name="sendmsg",
version="1.0",
ext_modules=[Extension("sendmsg", ["src/sendmsg.c"])])