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Optimise LoggingContext creation and copying

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It turns out that the only thing we use the __dict__ of LoggingContext for is
`request`, and given we create lots of LoggingContexts and then copy them every
time we do a db transaction or log line, using the __dict__ seems a bit
redundant. Let's try to optimise things by making the request attribute
explicit.
This commit is contained in:
Richard van der Hoff
2018-01-11 22:40:51 +00:00
parent febdca4b37
commit 44a498418c
3 changed files with 33 additions and 22 deletions
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16
tests/util/test_logcontext.py
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@@ -12,12 +12,12 @@ class LoggingContextTestCase(unittest.TestCase):
def _check_test_key(self, value):
self.assertEquals(
LoggingContext.current_context().test_key, value
LoggingContext.current_context().request, value
)
def test_with_context(self):
with LoggingContext() as context_one:
context_one.test_key = "test"
context_one.request = "test"
self._check_test_key("test")
@defer.inlineCallbacks
@@ -25,14 +25,14 @@ class LoggingContextTestCase(unittest.TestCase):
@defer.inlineCallbacks
def competing_callback():
with LoggingContext() as competing_context:
competing_context.test_key = "competing"
competing_context.request = "competing"
yield sleep(0)
self._check_test_key("competing")
reactor.callLater(0, competing_callback)
with LoggingContext() as context_one:
context_one.test_key = "one"
context_one.request = "one"
yield sleep(0)
self._check_test_key("one")
@@ -43,14 +43,14 @@ class LoggingContextTestCase(unittest.TestCase):
@defer.inlineCallbacks
def cb():
context_one.test_key = "one"
context_one.request = "one"
yield function()
self._check_test_key("one")
callback_completed[0] = True
with LoggingContext() as context_one:
context_one.test_key = "one"
context_one.request = "one"
# fire off function, but don't wait on it.
logcontext.preserve_fn(cb)()
@@ -107,7 +107,7 @@ class LoggingContextTestCase(unittest.TestCase):
sentinel_context = LoggingContext.current_context()
with LoggingContext() as context_one:
context_one.test_key = "one"
context_one.request = "one"
d1 = logcontext.make_deferred_yieldable(blocking_function())
# make sure that the context was reset by make_deferred_yieldable
@@ -124,7 +124,7 @@ class LoggingContextTestCase(unittest.TestCase):
argument isn't actually a deferred"""
with LoggingContext() as context_one:
context_one.test_key = "one"
context_one.request = "one"
d1 = logcontext.make_deferred_yieldable("bum")
self._check_test_key("one")