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Levin Zimmermann
wendelin.core
Commits
fcf7b564
Commit
fcf7b564
authored
Feb 04, 2024
by
Levin Zimmermann
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fixup! Fix test_wcfs_crash_old_data
parent
4fb98300
Changes
1
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32 additions
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8 deletions
+32
-8
wcfs/wcfs_test.py
wcfs/wcfs_test.py
+32
-8
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wcfs/wcfs_test.py
View file @
fcf7b564
...
...
@@ -31,7 +31,7 @@ from __future__ import print_function, absolute_import
from
wendelin.lib.testing
import
getTestDB
from
wendelin.lib.zodb
import
dbclose
,
zstor_2zurl
from
wendelin.lib.mem
import
memcpy
from
wendelin.bigfile.file_zodb
import
ZBigFile
from
wendelin.bigfile.file_zodb
import
ZBigFile
,
ZBlk_fmt_write
,
_ZBlk_auto
,
ZBlk_fmt_registry
from
wendelin.bigfile.tests.test_filezodb
import
blksize
from
wendelin
import
wcfs
...
...
@@ -55,6 +55,10 @@ from wendelin.wcfs.internal.wcfs_test import _tWCFS, read_exfault_nogil, Segment
from
wendelin.wcfs.client._wcfs
import
_tpywlinkwrite
as
_twlinkwrite
from
wendelin.wcfs
import
_is_mountpoint
as
is_mountpoint
,
_procwait
as
procwait
,
_ready
as
ready
,
_rmdir_ifexists
as
rmdir_ifexists
# Some tests behave different, depending on if we use ZBlk heuristic or not,
# because the heuristic doesn't only change the explicitly declared
# blocks, but also changes adjacent blocks sometimes.
IS_ZBLK_FMT_AUTO
=
ZBlk_fmt_registry
[
ZBlk_fmt_write
]
==
_ZBlk_auto
# setup:
# - create test database, compute zurl and mountpoint for wcfs
...
...
@@ -416,6 +420,9 @@ class tDB(tWCFS):
t
.
tail
=
t
.
root
.
_p_jar
.
db
().
storage
.
lastTransaction
()
t
.
dFtail
=
[]
# of DF; head = dFtail[-1].rev
# a set of a blocks that were already changed
t
.
changed_blk_set
=
set
([])
# ID of the thread which created tDB
# ( transaction plays dirty games with threading.local and we have to
# check the thread is the same when .root is used )
...
...
@@ -485,6 +492,15 @@ class tDB(tWCFS):
data
=
b
(
data
)
assert
len
(
data
)
<=
zf
.
blksize
zfDelta
[
blk
]
=
data
# If this is the first change of a block and we have
# zblk format 'auto', the previous block is changed
# to ZBlk0 in case it isn't ZBlk0 already.
if
IS_ZBLK_FMT_AUTO
and
blk
not
in
t
.
changed_blk_set
:
previous_blk
=
blk
-
1
if
previous_blk
in
t
.
changed_blk_set
:
blkdata
,
_
=
t
.
_blkDataAt
(
zf
,
previous_blk
,
t
.
head
)
zfDelta
[
previous_blk
]
=
blkdata
t
.
changed_blk_set
.
add
(
blk
)
# commit commits transaction and makes sure wcfs is synchronized to it.
#
...
...
@@ -967,10 +983,8 @@ def watch(twlink, zf, at, pinok=None): # -> tWatch
#print('-> %s' % t.hpin(pin))
# {} blk -> at that have to be pinned.
#if pinok is not None:
# assert pin == pinok, "computed vs explicit pinok"
#pinok = pin
if
not
pinok
:
if
pinok
is
not
None
:
assert
pin
==
pinok
,
"computed vs explicit pinok"
pinok
=
pin
print
(
'# pinok: %s'
%
t
.
hpin
(
pinok
))
...
...
@@ -981,7 +995,7 @@ def watch(twlink, zf, at, pinok=None): # -> tWatch
w
.
at
=
at
# `watch ... -> at_i -> at_j` must be the same as `watch ø -> at_j`
#
assert w.pinned == t._pinnedAt(zf, at)
assert
w
.
pinned
==
t
.
_pinnedAt
(
zf
,
at
)
return
w
...
...
@@ -1859,7 +1873,17 @@ def test_wcfs_crash_old_data():
# wcfs was crashing in setting up watch because of "1" and "2" from above, and
# 3. setupWatch was calling ΔFtail.BlkRevAt without putting zhead's transaction into ctx.
wl2
=
t
.
openwatch
()
wl2
.
watch
(
zf
,
at2
,
{
0
:
at2
})
if
IS_ZBLK_FMT_AUTO
:
# at2 is first commit of blk 1: heuristic
# switches blk 1 to ZBlk0: therefore it's
# a different state than at 'at1' and needs
# to be pinned to 'at2'.
pinok
=
{
0
:
at2
}
else
:
# ZBlk0/ZBlk1 only change explicitly declared blocks:
# the last data change of block 1 was at 'at1'.
pinok
=
{
0
:
at1
}
wl2
.
watch
(
zf
,
at2
,
pinok
)
# ---- misc ---
...
...
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