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Kirill Smelkov
ZODB
Commits
d7fc15c6
Commit
d7fc15c6
authored
Jun 24, 2003
by
Jim Fulton
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Added a database removeVersionPool method to remove a version pool.
parent
a5fd4876
Changes
2
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2 changed files
with
109 additions
and
8 deletions
+109
-8
trunk/src/ZODB/DB.py
trunk/src/ZODB/DB.py
+29
-5
trunk/src/ZODB/tests/testDB.py
trunk/src/ZODB/tests/testDB.py
+80
-3
No files found.
trunk/src/ZODB/DB.py
View file @
d7fc15c6
...
...
@@ -13,8 +13,8 @@
##############################################################################
"""Database objects
$Id: DB.py,v 1.5
0 2003/04/23 20:05:51 jeremy
Exp $"""
__version__
=
'$Revision: 1.5
0
$'
[
11
:
-
2
]
$Id: DB.py,v 1.5
1 2003/06/24 21:29:54 jim
Exp $"""
__version__
=
'$Revision: 1.5
1
$'
[
11
:
-
2
]
import
cPickle
,
cStringIO
,
sys
,
POSException
,
UndoLogCompatible
from
Connection
import
Connection
...
...
@@ -136,12 +136,23 @@ class DB(UndoLogCompatible.UndoLogCompatible):
am
.
closedConnection
(
connection
)
version
=
connection
.
_version
pools
,
pooll
=
self
.
_pools
try
:
pool
,
allocated
,
pool_lock
=
pools
[
version
]
except
KeyError
:
# No such version. We must have deleted the pool.
# Just let the connection go.
# We need to break circular refs to make it really go:
connection
.
__dict__
.
clear
()
return
pool
.
append
(
connection
)
if
len
(
pool
)
==
1
:
# Pool now usable again, unlock it.
pool_lock
.
release
()
finally
:
self
.
_r
()
finally
:
self
.
_r
()
def
_connectionMap
(
self
,
f
):
self
.
_a
()
...
...
@@ -384,7 +395,7 @@ class DB(UndoLogCompatible.UndoLogCompatible):
return
c
pools
,
pooll
=
self
.
_pools
pools
,
pooll
=
self
.
_pools
# pools is a mapping object:
#
...
...
@@ -473,6 +484,19 @@ class DB(UndoLogCompatible.UndoLogCompatible):
finally
:
self
.
_r
()
def
removeVersionPool
(
self
,
version
):
pools
,
pooll
=
self
.
_pools
info
=
pools
.
get
(
version
)
if
info
:
del
pools
[
version
]
pool
,
allocated
,
pool_lock
=
info
pooll
.
remove
((
pool
,
allocated
))
try
:
pool_lock
.
release
()
except
:
pass
del
pool
[:]
del
allocated
[:]
6
def
connectionDebugInfo
(
self
):
r
=
[]
pools
,
pooll
=
self
.
_pools
...
...
trunk/src/ZODB/tests/testDB.py
View file @
d7fc15c6
...
...
@@ -11,22 +11,27 @@
# FOR A PARTICULAR PURPOSE.
#
##############################################################################
import
os
import
time
import
unittest
import
ZODB
import
ZODB.
Mapping
Storage
import
ZODB.
File
Storage
from
ZODB.tests.MinPO
import
MinPO
class
DBTests
(
unittest
.
TestCase
):
def
setUp
(
self
):
store
=
ZODB
.
MappingStorage
.
MappingStorage
()
self
.
__path
=
os
.
path
.
abspath
(
'test.fs'
)
store
=
ZODB
.
FileStorage
.
FileStorage
(
self
.
__path
)
self
.
db
=
ZODB
.
DB
(
store
)
def
tearDown
(
self
):
self
.
db
.
close
()
for
s
in
(
''
,
'.index'
,
'.lock'
,
'.tmp'
):
if
os
.
path
.
exists
(
self
.
__path
+
s
):
os
.
remove
(
self
.
__path
+
s
)
def
dowork
(
self
,
version
=
''
):
c
=
self
.
db
.
open
(
version
)
...
...
@@ -37,7 +42,6 @@ class DBTests(unittest.TestCase):
o
.
value
=
MinPO
(
i
)
get_transaction
().
commit
()
o
=
o
.
value
print
r
.
items
()
c
.
close
()
# make sure the basic methods are callable
...
...
@@ -49,5 +53,78 @@ class DBTests(unittest.TestCase):
self
.
db
.
setVersionCacheDeactivateAfter
(
12
)
# deprecated
self
.
db
.
setVersionCacheSize
(
15
)
def
test_removeVersionPool
(
self
):
# Test that we can remove a version pool
# This is white box because we check some internal data structures
self
.
dowork
()
self
.
dowork
(
'v2'
)
c1
=
self
.
db
.
open
(
'v1'
)
c1
.
close
()
# return to pool
c12
=
self
.
db
.
open
(
'v1'
)
c12
.
close
()
# return to pool
self
.
assert_
(
c1
is
c12
)
# should be same
pools
,
pooll
=
self
.
db
.
_pools
self
.
assertEqual
(
len
(
pools
),
3
)
self
.
assertEqual
(
len
(
pooll
),
3
)
self
.
db
.
removeVersionPool
(
'v1'
)
self
.
assertEqual
(
len
(
pools
),
2
)
self
.
assertEqual
(
len
(
pooll
),
2
)
c12
=
self
.
db
.
open
(
'v1'
)
c12
.
close
()
# return to pool
self
.
assert_
(
c1
is
not
c12
)
# should be different
self
.
assertEqual
(
len
(
pools
),
3
)
self
.
assertEqual
(
len
(
pooll
),
3
)
def
_test_for_leak
(
self
):
self
.
dowork
()
self
.
dowork
(
'v2'
)
while
1
:
c1
=
self
.
db
.
open
(
'v1'
)
self
.
db
.
removeVersionPool
(
'v1'
)
c1
.
close
()
# return to pool
def
test_removeVersionPool_while_connection_open
(
self
):
# Test that we can remove a version pool
# This is white box because we check some internal data structures
self
.
dowork
()
self
.
dowork
(
'v2'
)
c1
=
self
.
db
.
open
(
'v1'
)
c1
.
close
()
# return to pool
c12
=
self
.
db
.
open
(
'v1'
)
self
.
assert_
(
c1
is
c12
)
# should be same
pools
,
pooll
=
self
.
db
.
_pools
self
.
assertEqual
(
len
(
pools
),
3
)
self
.
assertEqual
(
len
(
pooll
),
3
)
self
.
db
.
removeVersionPool
(
'v1'
)
self
.
assertEqual
(
len
(
pools
),
2
)
self
.
assertEqual
(
len
(
pooll
),
2
)
c12
.
close
()
# should leave pools alone
self
.
assertEqual
(
len
(
pools
),
2
)
self
.
assertEqual
(
len
(
pooll
),
2
)
c12
=
self
.
db
.
open
(
'v1'
)
c12
.
close
()
# return to pool
self
.
assert_
(
c1
is
not
c12
)
# should be different
self
.
assertEqual
(
len
(
pools
),
3
)
self
.
assertEqual
(
len
(
pooll
),
3
)
def
test_suite
():
return
unittest
.
makeSuite
(
DBTests
)
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