[Zodb-checkins] SVN: ZODB/branches/3.8/src/ZEO/cache.py Added
assertion data.
Jim Fulton
jim at zope.com
Wed May 28 16:31:38 EDT 2008
Log message for revision 87003:
Added assertion data.
Changed:
U ZODB/branches/3.8/src/ZEO/cache.py
-=-
Modified: ZODB/branches/3.8/src/ZEO/cache.py
===================================================================
--- ZODB/branches/3.8/src/ZEO/cache.py 2008-05-28 18:52:47 UTC (rev 87002)
+++ ZODB/branches/3.8/src/ZEO/cache.py 2008-05-28 20:31:33 UTC (rev 87003)
@@ -233,6 +233,9 @@
# file, and tell our parent about it too (via the `install` callback).
# Remember the location of the largest free block. That seems a
# decent place to start currentofs.
+
+ self.current = ZODB.fsIndex.fsIndex()
+ self.noncurrent = BTrees.LOBTree.LOBTree()
max_free_size = l = 0
ofs = max_free_offset = ZEC3_HEADER_SIZE
current = self.current
@@ -243,9 +246,10 @@
size, oid, start_tid, end_tid = unpack(">I8s8s8s", read(28))
if end_tid == z64:
+ assert oid not in current, (ofs, self.f.tell())
current[oid] = ofs
else:
- assert start_tid < end_tid
+ assert start_tid < end_tid, (ofs, self.f.tell())
self._set_noncurrent(oid, start_tid, ofs)
l += 1
elif status == 'f':
@@ -296,12 +300,12 @@
# Close the underlying file. No methods accessing the cache should be
# used after this.
def close(self):
- if hasattr(self,'_lock_file'):
- self._lock_file.close()
if self.f:
sync(self.f)
self.f.close()
self.f = None
+ if hasattr(self,'_lock_file'):
+ self._lock_file.close()
##
# Evict objects as necessary to free up at least nbytes bytes,
@@ -315,7 +319,8 @@
# freed (starting at currentofs when _makeroom returns, and
# spanning the number of bytes retured by _makeroom).
def _makeroom(self, nbytes):
- assert 0 < nbytes <= self.maxsize - ZEC3_HEADER_SIZE
+ assert 0 < nbytes <= self.maxsize - ZEC3_HEADER_SIZE, (
+ nbytes, self.maxsize)
if self.currentofs + nbytes > self.maxsize:
self.currentofs = ZEC3_HEADER_SIZE
ofs = self.currentofs
@@ -353,7 +358,7 @@
raise ValueError("new last tid (%s) must be greater than "
"previous one (%s)" % (u64(tid),
u64(self.tid)))
- assert isinstance(tid, str) and len(tid) == 8
+ assert isinstance(tid, str) and len(tid) == 8, tid
self.tid = tid
self.f.seek(len(magic))
self.f.write(tid)
@@ -384,10 +389,10 @@
return None
self.f.seek(ofs)
read = self.f.read
- assert read(1) == 'a'
+ assert read(1) == 'a', (ofs, self.f.tell(), oid)
size, saved_oid, tid, end_tid, lver, ldata = unpack(
">I8s8s8shI", read(34))
- assert saved_oid == oid
+ assert saved_oid == oid, (ofs, self.f.tell(), oid, saved_oid)
if lver or version:
if lver != len(version) or read(lver) != version:
self._trace(0x20, oid, version)
@@ -395,8 +400,8 @@
data = read(ldata)
- assert len(data) == ldata
- assert read(8) == oid
+ assert len(data) == ldata, (ofs, self.f.tell(), oid, len(data), ldata)
+ assert read(8) == oid, (ofs, self.f.tell(), oid)
self._n_accesses += 1
self._trace(0x22, oid, version, tid, end_tid, ldata)
@@ -423,16 +428,16 @@
self.f.seek(ofs)
read = self.f.read
- assert read(1) == 'a'
+ assert read(1) == 'a', (ofs, self.f.tell(), oid, before_tid)
size, saved_oid, saved_tid, end_tid, lver, ldata = unpack(
">I8s8s8shI", read(34))
- assert saved_oid == oid
- assert saved_tid == p64(tid)
- assert lver == 0
- assert end_tid != z64
+ assert saved_oid == oid, (ofs, self.f.tell(), oid, saved_oid)
+ assert saved_tid == p64(tid), (ofs, self.f.tell(), oid, saved_tid, tid)
+ assert lver == 0, (ofs, self.f.tell())
+ assert end_tid != z64, (ofs, self.f.tell(), oid)
data = read(ldata)
- assert len(data) == ldata
- assert read(8) == oid
+ assert len(data) == ldata, (ofs, self.f.tell())
+ assert read(8) == oid, (ofs, self.f.tell(), oid)
if end_tid < before_tid:
self._trace(0x24, oid, "", before_tid)
@@ -456,10 +461,10 @@
return None
self.f.seek(ofs)
read = self.f.read
- assert self.f.read(1) == 'a'
+ assert self.f.read(1) == 'a', (ofs, self.f.tell(), oid)
size, saved_oid, saved_tid, end_tid, lver, ldata = unpack(
">I8s8s8shI", read(34))
- assert saved_oid == oid
+ assert saved_oid == oid, (ofs, self.f.tell(), oid, saved_oid)
if lver:
return read(lver)
return None
@@ -490,11 +495,11 @@
if ofs:
seek(ofs)
read = self.f.read
- assert read(1) == 'a'
+ assert read(1) == 'a', (ofs, self.f.tell(), oid)
size, saved_oid, saved_tid, end_tid = unpack(
">I8s8s8s", read(28))
- assert saved_oid == oid
- assert end_tid == z64
+ assert saved_oid == oid, (ofs, self.f.tell(), oid, saved_oid)
+ assert end_tid == z64, (ofs, self.f.tell(), oid)
if saved_tid == start_tid:
return
raise ValueError("already have current data for oid")
@@ -520,7 +525,7 @@
self._len += 1
nfreebytes = self._makeroom(size)
- assert size <= nfreebytes
+ assert size <= nfreebytes, (size, nfreebytes)
excess = nfreebytes - size
# If there's any excess (which is likely), we need to record a
# free block following the end of the data record. That isn't
@@ -593,11 +598,11 @@
self.f.seek(ofs)
read = self.f.read
- assert read(1) == 'a'
+ assert read(1) == 'a', (ofs, self.f.tell(), oid)
size, saved_oid, saved_tid, end_tid, lver = unpack(
">I8s8s8sh", read(30))
- assert saved_oid == oid
- assert end_tid == z64
+ assert saved_oid == oid, (ofs, self.f.tell(), oid, saved_oid)
+ assert end_tid == z64, (ofs, self.f.tell(), oid)
del self.current[oid]
if tid is None or lver:
self.f.seek(ofs)
@@ -626,10 +631,10 @@
read = self.f.read
for oid, ofs in self.current.iteritems():
seek(ofs)
- assert read(1) == 'a'
+ assert read(1) == 'a', (ofs, self.f.tell(), oid)
size, saved_oid, tid, end_tid, lver = unpack(">I8s8s8sh", read(30))
- assert saved_oid == oid
- assert end_tid == z64
+ assert saved_oid == oid, (ofs, self.f.tell(), oid, saved_oid)
+ assert end_tid == z64, (ofs, self.f.tell(), oid)
if lver:
version = read(lver)
else:
@@ -697,7 +702,6 @@
self._trace = _trace
_trace(0x00)
-
def sync(f):
f.flush()
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