[CalendarServer-changes] [2420] CalendarServer/trunk/twistedcaldav
source_changes at macosforge.org
source_changes at macosforge.org
Wed May 14 17:02:25 PDT 2008
Revision: 2420
http://trac.macosforge.org/projects/calendarserver/changeset/2420
Author: dreid at apple.com
Date: 2008-05-14 17:02:25 -0700 (Wed, 14 May 2008)
Log Message:
-----------
Only check the cache token once a minute.
Modified Paths:
--------------
CalendarServer/trunk/twistedcaldav/cache.py
CalendarServer/trunk/twistedcaldav/config.py
CalendarServer/trunk/twistedcaldav/root.py
CalendarServer/trunk/twistedcaldav/test/test_cache.py
Modified: CalendarServer/trunk/twistedcaldav/cache.py
===================================================================
--- CalendarServer/trunk/twistedcaldav/cache.py 2008-05-14 19:44:16 UTC (rev 2419)
+++ CalendarServer/trunk/twistedcaldav/cache.py 2008-05-15 00:02:25 UTC (rev 2420)
@@ -74,16 +74,20 @@
"""
CACHE_SIZE = 1000
+ TOKEN_CHECK_INTERVAL = 60
propertyStoreFactory = xattrPropertyStore
- def __init__(self, docroot, cacheSize=None):
+ def __init__(self, docroot, cacheSize=None, tokenCheck=None):
self._docroot = docroot
self._responses = {}
if cacheSize is not None:
self.CACHE_SIZE = cacheSize
+ if tokenCheck is not None:
+ self.TOKEN_CHECK_INTERVAL = tokenCheck
+
def _tokenForURI(self, uri):
"""
Get a property store for the given C{uri}.
@@ -154,26 +158,34 @@
self.log_debug("Not in cache: %r" % (key,))
return None
- principalToken, uriToken, accessTime, response = self._responses[key]
+ (principalToken,
+ uriToken,
+ tokenCheckTime,
+ accessTime,
+ response) = self._responses[key]
- newPrincipalToken = self._tokenForURI(principalURI)
- newURIToken = self._tokenForURI(request.uri)
+ if self._time() - tokenCheckTime >= self.TOKEN_CHECK_INTERVAL:
+ newPrincipalToken = self._tokenForURI(principalURI)
+ newURIToken = self._tokenForURI(request.uri)
+ tokenCheckTime = self._time()
+ if newPrincipalToken != principalToken:
+ self.log_debug(
+ "Principal token changed on %r from %r to %r" % (
+ key,
+ principalToken,
+ newPrincipalToken
+ ))
+ return None
- if newPrincipalToken != principalToken:
- self.log_debug("Principal token changed on %r from %r to %r" % (
- key,
- principalToken,
- newPrincipalToken
- ))
- return None
+ elif newURIToken != uriToken:
+ self.log_debug(
+ "URI token changed on %r from %r to %r" % (
+ key,
+ uriToken,
+ newURIToken
+ ))
+ return None
- elif newURIToken != uriToken:
- self.log_debug("URI token changed on %r from %r to %r" % (
- key,
- uriToken,
- newURIToken
- ))
- return None
response[1].removeHeader('date')
@@ -183,6 +195,7 @@
self._responses[key] = (principalToken,
uriToken,
+ tokenCheckTime,
self._time(),
response)
@@ -256,6 +269,7 @@
self._responses[key] = (self._tokenForURI(principalURI),
self._tokenForURI(request.uri),
self._time(),
+ self._time(),
(response.code,
response.headers,
responseBody))
Modified: CalendarServer/trunk/twistedcaldav/config.py
===================================================================
--- CalendarServer/trunk/twistedcaldav/config.py 2008-05-14 19:44:16 UTC (rev 2419)
+++ CalendarServer/trunk/twistedcaldav/config.py 2008-05-15 00:02:25 UTC (rev 2420)
@@ -194,6 +194,9 @@
# Configure the number of seconds that Propfinds should be cached for.
"ResponseCacheSize": 1000,
+ # Define how frequently in seconds we should check the cache token.
+ "TokenCheckInterval": 60,
+
# Profiling options
"Profiling": {
"Enabled": False,
Modified: CalendarServer/trunk/twistedcaldav/root.py
===================================================================
--- CalendarServer/trunk/twistedcaldav/root.py 2008-05-14 19:44:16 UTC (rev 2419)
+++ CalendarServer/trunk/twistedcaldav/root.py 2008-05-15 00:02:25 UTC (rev 2420)
@@ -52,7 +52,9 @@
self.contentFilters = []
- self.responseCache = ResponseCache(self.fp, config.ResponseCacheSize)
+ self.responseCache = ResponseCache(self.fp,
+ config.ResponseCacheSize,
+ config.TokenCacheInterval)
if config.ResponseCompression:
from twisted.web2.filter import gzip
Modified: CalendarServer/trunk/twistedcaldav/test/test_cache.py
===================================================================
--- CalendarServer/trunk/twistedcaldav/test/test_cache.py 2008-05-14 19:44:16 UTC (rev 2419)
+++ CalendarServer/trunk/twistedcaldav/test/test_cache.py 2008-05-15 00:02:25 UTC (rev 2420)
@@ -96,7 +96,7 @@
'/principals/users/cdaboo/': 'principalToken0',
'/principals/users/dreid/': 'principalTokenX'}
- self.rc = ResponseCache(None)
+ self.rc = ResponseCache(None, tokenCheck=0)
self.rc._tokenForURI = self.tokens.get
self.rc._time = (lambda:0)
@@ -112,7 +112,7 @@
)
self.rc._responses[expected_key] = (
- 'principalToken0', 'uriToken0', 0, self.expected_response)
+ 'principalToken0', 'uriToken0', 0, 0, self.expected_response)
self.rc._accessList = [expected_key]
@@ -258,37 +258,60 @@
return d
- def test_cacheExpirationBenchmark(self):
- self.rc.CACHE_SIZE = 70000
- import time
+# def test_cacheExpirationBenchmark(self):
+# self.rc.CACHE_SIZE = 70000
+# import time
- self.rc._responses = {}
- self.rc._accessList = []
+# self.rc._responses = {}
+# self.rc._accessList = []
- for x in xrange(0, self.rc.CACHE_SIZE):
- req = StubRequest('PROPFIND',
- '/principals/users/user%d' % (x,),
- '/principals/users/user%d' % (x,))
- self.rc._responses[req] = (
- 'pTokenUser%d' % (x,), 'rTokenUser%d' % (x,), 0,
- (200, {}, 'foobar'))
+# for x in xrange(0, self.rc.CACHE_SIZE):
+# req = StubRequest('PROPFIND',
+# '/principals/users/user%d' % (x,),
+# '/principals/users/user%d' % (x,))
+# self.rc._responses[req] = (
+# 'pTokenUser%d' % (x,), 'rTokenUser%d' % (x,), 0,
+# (200, {}, 'foobar'))
- self.rc._accessList.append(req)
+# self.rc._accessList.append(req)
- def assertTime(result, startTime):
- duration = time.time() - startTime
+# def assertTime(result, startTime):
+# duration = time.time() - startTime
- self.failUnless(
- duration < 0.01,
- "Took to long to add to the cache: %r" % (duration,))
+# self.failUnless(
+# duration < 0.01,
+# "Took to long to add to the cache: %r" % (duration,))
- startTime = time.time()
+# startTime = time.time()
- d = self.rc.cacheResponseForRequest(
- StubRequest('PROPFIND',
- '/principals/users/dreid/',
- '/principals/users/dreid/'),
- StubResponse(200, {}, 'Foobar'))
+# d = self.rc.cacheResponseForRequest(
+# StubRequest('PROPFIND',
+# '/principals/users/dreid/',
+# '/principals/users/dreid/'),
+# StubResponse(200, {}, 'Foobar'))
- d.addCallback(assertTime, startTime)
+# d.addCallback(assertTime, startTime)
+# return d
+
+
+ def test_tokenCheckInterval(self):
+ self.tokens['/principals/users/cdaboo/'] = 'principalToken1'
+
+ self.rc.TOKEN_CHECK_INTERVAL = 60
+
+ req = StubRequest(
+ 'PROPFIND',
+ '/calendars/users/cdaboo/',
+ '/principals/users/cdaboo/')
+
+ def _surpassInterval(result):
+ self.rc._time = (lambda: 61)
+ d1 = self.rc.getResponseForRequest(req)
+ d1.addCallback(self.assertEquals, None)
+ return d1
+
+ d = self.rc.getResponseForRequest(req)
+
+ d.addCallback(self.assertResponse, self.expected_response)
+ d.addCallback(_surpassInterval)
return d
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