Commit d457f745 authored by Jim Fulton's avatar Jim Fulton

Added assertion data.

parent 475ee253
......@@ -230,6 +230,9 @@ class ClientCache(object):
# 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 = ZEC_HEADER_SIZE
current = self.current
......@@ -240,9 +243,10 @@ class ClientCache(object):
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':
......@@ -293,12 +297,12 @@ class ClientCache(object):
# 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,
......@@ -312,7 +316,8 @@ class ClientCache(object):
# 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 - ZEC_HEADER_SIZE
assert 0 < nbytes <= self.maxsize - ZEC_HEADER_SIZE, (
nbytes, self.maxsize)
if self.currentofs + nbytes > self.maxsize:
self.currentofs = ZEC_HEADER_SIZE
ofs = self.currentofs
......@@ -351,7 +356,7 @@ class ClientCache(object):
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)
......@@ -381,14 +386,14 @@ class ClientCache(object):
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, ldata = unpack(
">I8s8s8sI", read(32))
assert saved_oid == oid
assert saved_oid == oid, (ofs, self.f.tell(), oid, saved_oid)
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, tid, end_tid, ldata)
......@@ -415,15 +420,15 @@ class ClientCache(object):
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, ldata = unpack(
">I8s8s8sI", read(32))
assert saved_oid == oid
assert saved_tid == p64(tid)
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 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)
......@@ -449,11 +454,11 @@ class ClientCache(object):
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")
......@@ -476,7 +481,7 @@ class ClientCache(object):
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
......@@ -540,10 +545,10 @@ class ClientCache(object):
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 = 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)
del self.current[oid]
if tid is None:
self.f.seek(ofs)
......@@ -568,10 +573,10 @@ class ClientCache(object):
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 = 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)
yield oid, tid
def dump(self):
......@@ -633,7 +638,6 @@ class ClientCache(object):
self._trace = _trace
_trace(0x00)
def sync(f):
f.flush()
......
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