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Nicolas Wavrant
ZODB
Commits
9dd06e68
Commit
9dd06e68
authored
Nov 01, 2008
by
Jim Fulton
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Added some lock-debugging support.
parent
807d80a6
Changes
1
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1 changed file
with
49 additions
and
6 deletions
+49
-6
src/ZODB/BaseStorage.py
src/ZODB/BaseStorage.py
+49
-6
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src/ZODB/BaseStorage.py
View file @
9dd06e68
...
...
@@ -32,6 +32,8 @@ from ZODB.UndoLogCompatible import UndoLogCompatible
log
=
logging
.
getLogger
(
"ZODB.BaseStorage"
)
import
sys
class
BaseStorage
(
UndoLogCompatible
):
"""Base class that supports storage implementations.
...
...
@@ -81,12 +83,14 @@ class BaseStorage(UndoLogCompatible):
log
.
debug
(
"create storage %s"
,
self
.
__name__
)
# Allocate locks:
l
=
threading
.
RLock
()
self
.
_lock_acquire
=
l
.
acquire
self
.
_lock_release
=
l
.
release
l
=
threading
.
Lock
()
self
.
_commit_lock_acquire
=
l
.
acquire
self
.
_commit_lock_release
=
l
.
release
self
.
__lock
=
threading
.
RLock
()
self
.
__commit_lock
=
threading
.
Lock
()
# Comment out the following 4 lines to debug locking:
self
.
_lock_acquire
=
self
.
__lock
.
acquire
self
.
_lock_release
=
self
.
__lock
.
release
self
.
_commit_lock_acquire
=
self
.
__commit_lock
.
acquire
self
.
_commit_lock_release
=
self
.
__commit_lock
.
release
t
=
time
.
time
()
t
=
self
.
_ts
=
TimeStamp
(
*
(
time
.
gmtime
(
t
)[:
5
]
+
(
t
%
60
,)))
...
...
@@ -102,6 +106,45 @@ class BaseStorage(UndoLogCompatible):
else
:
self
.
_oid
=
oid
########################################################################
# The following methods are normally overridden on instances,
# except when debugging:
def
_lock_acquire
(
self
,
*
args
):
f
=
sys
.
_getframe
(
1
)
sys
.
stdout
.
write
(
"[la(%s:%s)
\
n
"
%
(
f
.
f_code
.
co_filename
,
f
.
f_lineno
))
sys
.
stdout
.
flush
()
self
.
__lock
.
acquire
(
*
args
)
sys
.
stdout
.
write
(
"la(%s:%s)]
\
n
"
%
(
f
.
f_code
.
co_filename
,
f
.
f_lineno
))
sys
.
stdout
.
flush
()
def
_lock_release
(
self
,
*
args
):
f
=
sys
.
_getframe
(
1
)
sys
.
stdout
.
write
(
"[lr(%s:%s)
\
n
"
%
(
f
.
f_code
.
co_filename
,
f
.
f_lineno
))
sys
.
stdout
.
flush
()
self
.
__lock
.
release
(
*
args
)
sys
.
stdout
.
write
(
"lr(%s:%s)]
\
n
"
%
(
f
.
f_code
.
co_filename
,
f
.
f_lineno
))
sys
.
stdout
.
flush
()
def
_commit_lock_acquire
(
self
,
*
args
):
f
=
sys
.
_getframe
(
1
)
sys
.
stdout
.
write
(
"[ca(%s:%s)
\
n
"
%
(
f
.
f_code
.
co_filename
,
f
.
f_lineno
))
sys
.
stdout
.
flush
()
self
.
__commit_lock
.
acquire
(
*
args
)
sys
.
stdout
.
write
(
"ca(%s:%s)]
\
n
"
%
(
f
.
f_code
.
co_filename
,
f
.
f_lineno
))
sys
.
stdout
.
flush
()
def
_commit_lock_release
(
self
,
*
args
):
f
=
sys
.
_getframe
(
1
)
sys
.
stdout
.
write
(
"[cr(%s:%s)
\
n
"
%
(
f
.
f_code
.
co_filename
,
f
.
f_lineno
))
sys
.
stdout
.
flush
()
self
.
__commit_lock
.
release
(
*
args
)
sys
.
stdout
.
write
(
"cr(%s:%s)]
\
n
"
%
(
f
.
f_code
.
co_filename
,
f
.
f_lineno
))
sys
.
stdout
.
flush
()
#
########################################################################
def
sortKey
(
self
):
"""Return a string that can be used to sort storage instances.
...
...
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