protected override void WriteBuffer(ByteArrayBuffer buffer, bool shuttingDown)
{
base.WriteBuffer(buffer, shuttingDown);
var systemData = SystemData();
buffer.WriteInt(systemData.IdToTimestampIndexId());
buffer.WriteInt(systemData.TimestampToIdIndexId());
}
public override void WriteThis(Transaction trans, ByteArrayBuffer a_writer)
{
a_writer.WriteByte(BtreeVersion);
a_writer.WriteInt(_size);
a_writer.WriteInt(NodeSize());
a_writer.WriteIDOf(trans, _root);
}
public virtual void WriteIndexEntry(IContext context, ByteArrayBuffer writer, object
obj)
{
var slot = (Slot) obj;
writer.WriteInt(slot.Address());
writer.WriteInt(slot.Length());
}
public override void ApplySlotChanges(IVisitable slotChangeTree, int slotChangeCount
, Slot reservedSlot)
{
if (slotChangeCount < 1)
{
return;
}
var commitHook = _container.CommitHook();
FlushDatabaseFile();
EnsureLogAndLock();
var length = TransactionLogSlotLength(slotChangeCount);
var logBuffer = new ByteArrayBuffer(length);
logBuffer.WriteInt(length);
logBuffer.WriteInt(slotChangeCount);
AppendSlotChanges(logBuffer, slotChangeTree);
Write(_logFile, logBuffer);
_logFile.Sync();
WriteToLockFile(LockInt);
WriteSlots(slotChangeTree);
commitHook.Run();
FlushDatabaseFile();
WriteToLockFile(0);
}
public virtual void WriteIndexEntry(IContext context, ByteArrayBuffer writer, object
obj)
{
Slot slot = (Slot)obj;
writer.WriteInt(slot.Address());
writer.WriteInt(slot.Length());
}
protected override void WriteBuffer(ByteArrayBuffer buffer, bool shuttingDown)
{
base.WriteBuffer(buffer, shuttingDown);
SystemData systemData = SystemData();
buffer.WriteInt(systemData.IdToTimestampIndexId());
buffer.WriteInt(systemData.TimestampToIdIndexId());
}
private void WriteToLockFile(int lockSignal)
{
ByteArrayBuffer lockBuffer = NewLockFileBuffer();
lockBuffer.WriteInt(lockSignal);
lockBuffer.WriteInt(lockSignal);
Write(_lockFile, lockBuffer);
_lockFile.Sync();
}
public override void Write(ByteArrayBuffer writer)
{
if (SlotModified())
{
writer.WriteInt(_key);
writer.WriteInt(_newSlot.Address());
writer.WriteInt(_newSlot.Length());
}
}
private void WriteIds(ByteArrayBuffer buffer, IList ids)
{
buffer.WriteInt(ids.Count);
for (var idIter = ids.GetEnumerator(); idIter.MoveNext();)
{
var id = ((int)idIter.Current);
buffer.WriteInt(id);
}
}
public virtual void WriteIndexEntry(IContext context, ByteArrayBuffer a_writer, object
a_object)
{
if (a_object == null)
{
a_writer.WriteInt(0);
return;
}
a_writer.WriteInt(((int)a_object));
}
private void WriteSlot(ByteArrayBuffer buffer, Slot slot, bool writeZero)
{
if (writeZero || slot == null)
{
buffer.WriteInt(0);
buffer.WriteInt(0);
return;
}
buffer.WriteInt(slot.Address());
buffer.WriteInt(slot.Length());
}
public virtual void Write(Transaction trans, ClassMetadata clazz, ByteArrayBuffer
writer)
{
writer.WriteShortString(trans, clazz.NameToWrite());
var intFormerlyKnownAsMetaClassID = 0;
writer.WriteInt(intFormerlyKnownAsMetaClassID);
writer.WriteIDOf(trans, clazz._ancestor);
WriteIndex(trans, clazz, writer);
writer.WriteInt(clazz.DeclaredAspectCount());
clazz.TraverseDeclaredAspects(new _IProcedure4_39(this, trans, clazz, writer));
}
public override void WriteThis(Transaction trans, ByteArrayBuffer buffer)
{
int count = 0;
int startOffset = buffer._offset;
IContext context = trans.Context();
buffer.IncrementOffset(CountLeafAnd3LinkLength);
if (_isLeaf)
{
for (int i = 0; i < _count; i++)
{
object obj = InternalKey(trans, i);
if (obj != No4.Instance)
{
count++;
KeyHandler().WriteIndexEntry(context, buffer, obj);
}
}
}
else
{
for (int i = 0; i < _count; i++)
{
if (ChildCanSupplyFirstKey(i))
{
Db4objects.Db4o.Internal.Btree.BTreeNode child = (Db4objects.Db4o.Internal.Btree.BTreeNode
)_children[i];
object childKey = child.FirstKey(trans);
if (childKey != No4.Instance)
{
count++;
KeyHandler().WriteIndexEntry(context, buffer, childKey);
buffer.WriteIDOf(trans, child);
}
}
else
{
count++;
KeyHandler().WriteIndexEntry(context, buffer, Key(i));
buffer.WriteIDOf(trans, _children[i]);
}
}
}
int endOffset = buffer._offset;
buffer._offset = startOffset;
buffer.WriteInt(count);
buffer.WriteByte(_isLeaf ? (byte)1 : (byte)0);
buffer.WriteInt(_parentID);
buffer.WriteInt(_previousID);
buffer.WriteInt(_nextID);
buffer._offset = endOffset;
}
public virtual void Write(Transaction trans, ClassMetadata clazz, ByteArrayBuffer
writer)
{
writer.WriteShortString(trans, clazz.NameToWrite());
var intFormerlyKnownAsMetaClassID = 0;
writer.WriteInt(intFormerlyKnownAsMetaClassID);
writer.WriteIDOf(trans, clazz._ancestor);
WriteIndex(trans, clazz, writer);
writer.WriteInt(clazz.DeclaredAspectCount());
clazz.TraverseDeclaredAspects(new _IProcedure4_39(this, trans, clazz, writer));
}
private void WriteThis(Slot reservedSlot)
{
// We need a little dance here to keep filling free slots
// with X bytes. The FreespaceManager would do it immediately
// upon the free call, but then our CrashSimulatingTestCase
// fails because we have the Xses in the file before flushing.
Slot xByteSlot = null;
int slotLength = SlotLength();
if (reservedSlot.Length() >= slotLength)
{
_slot = reservedSlot;
reservedSlot = null;
}
else
{
_slot = AllocateSlot(true, slotLength);
}
ByteArrayBuffer buffer = new ByteArrayBuffer(_slot.Length());
buffer.WriteInt(_childId);
_idGenerator.Write(buffer);
TreeInt.Write(buffer, _ids);
_container.WriteBytes(buffer, _slot.Address(), 0);
_container.SystemData().IdSystemSlot(_slot);
IRunnable commitHook = _container.CommitHook();
_container.SyncFiles(commitHook);
FreeSlot(reservedSlot);
}
protected virtual void WriteIndex(Transaction trans, ClassMetadata clazz, ByteArrayBuffer
writer)
{
var indexID = clazz.Index().Write(trans);
writer.WriteInt(IndexIDForWriting(indexID));
}
protected virtual void WriteBuffer(ByteArrayBuffer buffer, bool shuttingDown)
{
SystemData systemData = SystemData();
WriteSlot(buffer, systemData.IdSystemSlot(), false);
WriteSlot(buffer, systemData.InMemoryFreespaceSlot(), !shuttingDown);
buffer.WriteInt(systemData.BTreeFreespaceId());
buffer.WriteInt(systemData.ConverterVersion());
buffer.WriteInt(systemData.UuidIndexId());
Db4oDatabase identity = systemData.Identity();
buffer.WriteInt(identity == null ? 0 : identity.GetID(_container.SystemTransaction
()));
buffer.WriteLong(systemData.LastTimeStampID());
buffer.WriteByte(systemData.FreespaceSystem());
}
public override void Write(Transaction trans, ClassMetadata clazz, ClassAspect aspect
, ByteArrayBuffer writer)
{
writer.WriteShortString(trans, aspect.GetName());
if (!(aspect is FieldMetadata))
{
return;
}
var field = (FieldMetadata)aspect;
field.Alive();
if (field.IsVirtual())
{
return;
}
var handler = field.GetHandler();
if (handler is StandardReferenceTypeHandler)
{
// TODO: ensure there is a test case, to make this happen
if (((StandardReferenceTypeHandler)handler).ClassMetadata().GetID() == 0)
{
trans.Container().NeedsUpdate(clazz);
}
}
writer.WriteInt(field.FieldTypeID());
var bitmap = new BitMap4(3);
bitmap.Set(0, field.IsPrimitive());
bitmap.Set(1, Handlers4.HandlesArray(handler));
bitmap.Set(2, Handlers4.HandlesMultidimensionalArray(handler));
// keep the order
writer.WriteByte(bitmap.GetByte(0));
}
private void WriteIntAt(ByteArrayBuffer target, int offset, int value)
{
int currentOffset = target.Offset();
target.Seek(offset);
target.WriteInt(value);
target.Seek(currentOffset);
}
public void WriteIndexEntry(IContext context, ByteArrayBuffer writer, object obj)
{
var indexEntry = obj as IndexEntry;
if (indexEntry == null)
{
indexEntry = new IndexEntry(ClassMetadataIdFor(context, obj), Convert.ToInt64(obj));
}
writer.WriteInt(indexEntry.ClassMetadataId);
writer.WriteLong(indexEntry.EnumValue);
}
public virtual ByteArrayBuffer Marshall(LocalTransaction transaction, IIntIterator4
ids, int count)
{
ByteArrayBuffer buffer = new ByteArrayBuffer(Const4.IntLength + count * Const4.IntLength
);
int sizeOffset = buffer.Offset();
buffer.WriteInt(0);
int written = 0;
while (count > 0 && ids.MoveNext())
{
buffer.WriteInt(ids.CurrentInt());
++written;
--count;
}
buffer.Seek(sizeOffset);
buffer.WriteInt(written);
return(buffer);
}
private static byte[] BytesToSendFor(string message)
{
var io = new LatinStringIO();
var marshalledStringLength = io.Length(message);
var buffer = new ByteArrayBuffer(marshalledStringLength + Const4.IntLength);
buffer.WriteInt(marshalledStringLength);
io.WriteLengthAndString(buffer, message);
buffer.Seek(0);
return(buffer.ReadBytes(buffer.Length()));
}
public virtual ByteArrayBuffer ToWriteBuffer(Pointer4 pointer)
{
ByteArrayBuffer buffer = new ByteArrayBuffer(pointer.Length());
_writeBuffer.MergeChildren(this, pointer.Address(), WriteBufferOffset());
WriteObjectClassID(buffer, ClassMetadata().GetID());
buffer.WriteByte(HandlerRegistry.HandlerVersion);
buffer.WriteInt(AspectCount());
buffer.WriteBitMap(_nullBitMap);
_writeBuffer.TransferContentTo(buffer);
return(buffer);
}
private void WriteIdSlotPairsTo(IList slots, ByteArrayBuffer buffer)
{
buffer.WriteInt(slots.Count);
for (IEnumerator idSlotPairIter = slots.GetEnumerator(); idSlotPairIter.MoveNext(
);)
{
Pair idSlotPair = ((Pair)idSlotPairIter.Current);
int id = (((int)idSlotPair.first));
Slot slot = ((Slot)idSlotPair.second);
if (Slot.IsNull(slot))
{
buffer.WriteInt(id);
buffer.WriteInt(0);
continue;
}
ByteArrayBuffer slotBuffer = _transaction.LocalContainer().ReadBufferBySlot(slot);
buffer.WriteInt(id);
buffer.WriteInt(slot.Length());
buffer.WriteBytes(slotBuffer._buffer);
}
}
public virtual void WriteIndexEntry(IContext context, ByteArrayBuffer writer, object
entry)
{
if (entry == null)
{
writer.WriteInt(0);
writer.WriteInt(0);
return;
}
if (entry is StatefulBuffer)
{
StatefulBuffer entryAsWriter = (StatefulBuffer)entry;
writer.WriteInt(entryAsWriter.GetAddress());
writer.WriteInt(entryAsWriter.Length());
return;
}
if (entry is Slot)
{
Slot s = (Slot)entry;
writer.WriteInt(s.Address());
writer.WriteInt(s.Length());
return;
}
throw new ArgumentException();
}
private void DefragmentWriteMappedClassId(IDefragmentContext context, ArrayInfo info
, int classIdOffset)
{
ByteArrayBuffer targetBuffer = context.TargetBuffer();
int currentOffset = targetBuffer.Offset();
targetBuffer.Seek(classIdOffset);
int classID = ClassIDFromInfo(Container(context), info);
int mappedID = context.MappedID(classID);
int marshalledMappedId = ClassIdToMarshalledClassId(mappedID, info.Primitive());
targetBuffer.WriteInt(marshalledMappedId);
targetBuffer.Seek(currentOffset);
}
public void Test()
{
int[] ints = new int[] {
int.MinValue,
-1,
0,
1,
int.MaxValue
};
int bufferLength = Const4.IntLength * ints.Length;
ByteArrayBuffer buffer = new ByteArrayBuffer(bufferLength);
for (int i = 0; i < ints.Length; i++)
{
buffer.WriteInt(ints[i]);
}
long checkSum = CRC32.CheckSum(buffer._buffer, 0, buffer._buffer.Length);
_expectedJavaOutput = checkSum.ToString();
RunTest();
}
public Msg ReplyFromServer()
{
lock (ContainerLock())
{
try
{
// Since every new Client reads the class
// collection from the file, we have to
// make sure, it has been written.
Container().ClassCollection().Write(Transaction());
}
catch (Exception)
{
}
}
MsgD message = Msg.GetClasses.GetWriterForLength(Transaction(), Const4.IntLength
+ 1);
ByteArrayBuffer writer = message.PayLoad();
writer.WriteInt(Container().ClassCollection().GetID());
writer.WriteByte(Container().StringIO().EncodingByte());
return(message);
}
public override void ApplySlotChanges(IVisitable slotChangeTree, int slotChangeCount
, Slot reservedSlot)
{
if (slotChangeCount < 1)
{
return;
}
var commitHook = _container.CommitHook();
FlushDatabaseFile();
EnsureLogAndLock();
var length = TransactionLogSlotLength(slotChangeCount);
var logBuffer = new ByteArrayBuffer(length);
logBuffer.WriteInt(length);
logBuffer.WriteInt(slotChangeCount);
AppendSlotChanges(logBuffer, slotChangeTree);
Write(_logFile, logBuffer);
_logFile.Sync();
WriteToLockFile(LockInt);
WriteSlots(slotChangeTree);
commitHook.Run();
FlushDatabaseFile();
WriteToLockFile(0);
}
public virtual void Write(ByteArrayBuffer buffer)
{
buffer.WriteInt(_id);
buffer.WriteInt(_address);
buffer.WriteInt(_length);
}
public virtual void Write(ByteArrayBuffer buffer)
{
buffer.WriteInt(_id);
buffer.WriteInt(Length());
buffer.Append(_bytes);
}
public override void WriteThis(Transaction trans, ByteArrayBuffer a_writer)
{
a_writer.WriteByte(BtreeVersion);
a_writer.WriteInt(_size);
a_writer.WriteInt(NodeSize());
a_writer.WriteIDOf(trans, _root);
}
protected virtual void WriteBuffer(ByteArrayBuffer buffer, bool shuttingDown)
{
var systemData = SystemData();
WriteSlot(buffer, systemData.IdSystemSlot(), false);
WriteSlot(buffer, systemData.InMemoryFreespaceSlot(), !shuttingDown);
buffer.WriteInt(systemData.BTreeFreespaceId());
buffer.WriteInt(systemData.ConverterVersion());
buffer.WriteInt(systemData.UuidIndexId());
var identity = systemData.Identity();
buffer.WriteInt(identity == null
? 0
: identity.GetID(_container.SystemTransaction
()));
buffer.WriteLong(systemData.LastTimeStampID());
buffer.WriteByte(systemData.FreespaceSystem());
}
private void WriteThis(Slot reservedSlot)
{
// We need a little dance here to keep filling free slots
// with X bytes. The FreespaceManager would do it immediately
// upon the free call, but then our CrashSimulatingTestCase
// fails because we have the Xses in the file before flushing.
Slot xByteSlot = null;
var slotLength = SlotLength();
if (reservedSlot.Length() >= slotLength)
{
_slot = reservedSlot;
reservedSlot = null;
}
else
{
_slot = AllocateSlot(true, slotLength);
}
var buffer = new ByteArrayBuffer(_slot.Length());
buffer.WriteInt(_childId);
_idGenerator.Write(buffer);
TreeInt.Write(buffer, _ids);
_container.WriteBytes(buffer, _slot.Address(), 0);
_container.SystemData().IdSystemSlot(_slot);
var commitHook = _container.CommitHook();
_container.SyncFiles(commitHook);
FreeSlot(reservedSlot);
}
public static void WriteInt(int a_int, ByteArrayBuffer a_bytes)
{
a_bytes.WriteInt(a_int);
}
public virtual void Write(ByteArrayBuffer buffer)
{
buffer.WriteInt(PersistentGeneratorValue());
}
private void WriteObjectClassID(ByteArrayBuffer reader, int id)
{
reader.WriteInt(-id);
}
public override void Write(ByteArrayBuffer writer)
{
if (SlotModified())
{
writer.WriteInt(_key);
writer.WriteInt(_newSlot.Address());
writer.WriteInt(_newSlot.Length());
}
}
public override void Write(ByteArrayBuffer buffer)
{
buffer.WriteInt(_key);
buffer.WriteInt(_slot.Address());
buffer.WriteInt(_slot.Length());
}
public virtual void Write(ByteArrayBuffer buffer)
{
buffer.WriteInt(_id);
buffer.WriteInt(_address);
buffer.WriteInt(_length);
}
public virtual void WriteObjectClassID(ByteArrayBuffer buffer, int id)
{
buffer.WriteInt(-id);
}
public virtual void WriteObjectClassID(ByteArrayBuffer buffer, int id)
{
buffer.WriteInt(-id);
}
public override void Write(ByteArrayBuffer buffer)
{
buffer.WriteInt(_key);
buffer.WriteInt(_slot.Address());
buffer.WriteInt(_slot.Length());
}
public override void Write(ByteArrayBuffer a_writer)
{
// byte order: size, address
a_writer.WriteInt(_key);
a_writer.WriteInt(_peer._key);
}
public override void Write(Transaction trans, ClassMetadata clazz, ClassAspect aspect
, ByteArrayBuffer writer)
{
writer.WriteShortString(trans, aspect.GetName());
if (!(aspect is FieldMetadata))
{
return;
}
var field = (FieldMetadata) aspect;
field.Alive();
if (field.IsVirtual())
{
return;
}
var handler = field.GetHandler();
if (handler is StandardReferenceTypeHandler)
{
// TODO: ensure there is a test case, to make this happen
if (((StandardReferenceTypeHandler) handler).ClassMetadata().GetID() == 0)
{
trans.Container().NeedsUpdate(clazz);
}
}
writer.WriteInt(field.FieldTypeID());
var bitmap = new BitMap4(3);
bitmap.Set(0, field.IsPrimitive());
bitmap.Set(1, Handlers4.HandlesArray(handler));
bitmap.Set(2, Handlers4.HandlesMultidimensionalArray(handler));
// keep the order
writer.WriteByte(bitmap.GetByte(0));
}
public virtual void Write(ByteArrayBuffer buffer)
{
buffer.WriteInt(PersistentGeneratorValue());
}
public virtual void WriteIndexEntry(IContext context, ByteArrayBuffer writer, object
entry)
{
if (entry == null)
{
writer.WriteInt(0);
writer.WriteInt(0);
return;
}
if (entry is StatefulBuffer)
{
var entryAsWriter = (StatefulBuffer) entry;
writer.WriteInt(entryAsWriter.GetAddress());
writer.WriteInt(entryAsWriter.Length());
return;
}
if (entry is Slot)
{
var s = (Slot) entry;
writer.WriteInt(s.Address());
writer.WriteInt(s.Length());
return;
}
throw new ArgumentException();
}
public virtual void WriteIndexEntry(IContext context, ByteArrayBuffer a_writer, object
a_object)
{
if (a_object == null)
{
a_writer.WriteInt(0);
return;
}
a_writer.WriteInt(((int) a_object));
}
public static void WriteInt(int a_int, ByteArrayBuffer a_bytes)
{
a_bytes.WriteInt(a_int);
}
protected virtual void WriteIndex(Transaction trans, ClassMetadata clazz, ByteArrayBuffer
writer)
{
var indexID = clazz.Index().Write(trans);
writer.WriteInt(IndexIDForWriting(indexID));
}
public virtual ByteArrayBuffer ToWriteBuffer(Pointer4 pointer)
{
var buffer = new ByteArrayBuffer(pointer.Length());
_writeBuffer.MergeChildren(this, pointer.Address(), WriteBufferOffset());
WriteObjectClassID(buffer, ClassMetadata().GetID());
buffer.WriteByte(HandlerRegistry.HandlerVersion);
buffer.WriteInt(AspectCount());
buffer.WriteBitMap(_nullBitMap);
_writeBuffer.TransferContentTo(buffer);
return buffer;
}
public override void WriteThis(Transaction trans, ByteArrayBuffer buffer)
{
var count = 0;
var startOffset = buffer._offset;
var context = trans.Context();
buffer.IncrementOffset(CountLeafAnd3LinkLength);
if (_isLeaf)
{
for (var i = 0; i < _count; i++)
{
var obj = InternalKey(trans, i);
if (obj != No4.Instance)
{
count++;
KeyHandler().WriteIndexEntry(context, buffer, obj);
}
}
}
else
{
for (var i = 0; i < _count; i++)
{
if (ChildCanSupplyFirstKey(i))
{
var child = (BTreeNode
) _children[i];
var childKey = child.FirstKey(trans);
if (childKey != No4.Instance)
{
count++;
KeyHandler().WriteIndexEntry(context, buffer, childKey);
buffer.WriteIDOf(trans, child);
}
}
else
{
count++;
KeyHandler().WriteIndexEntry(context, buffer, Key(i));
buffer.WriteIDOf(trans, _children[i]);
}
}
}
var endOffset = buffer._offset;
buffer._offset = startOffset;
buffer.WriteInt(count);
buffer.WriteByte(_isLeaf ? (byte) 1 : (byte) 0);
buffer.WriteInt(_parentID);
buffer.WriteInt(_previousID);
buffer.WriteInt(_nextID);
buffer._offset = endOffset;
}
private void WriteSlot(ByteArrayBuffer buffer, Slot slot, bool writeZero)
{
if (writeZero || slot == null)
{
buffer.WriteInt(0);
buffer.WriteInt(0);
return;
}
buffer.WriteInt(slot.Address());
buffer.WriteInt(slot.Length());
}
public override void WriteObjectClassID(ByteArrayBuffer buffer, int id)
{
buffer.WriteInt(id);
}