internal static int allocate(DatabaseImpl db, int root, ClassDescriptor.FieldType type, OldBtreeKey ins)
{
int pageId = db.allocatePage();
Page pg = db.putPage(pageId);
setnItems(pg, 1);
if (type == ClassDescriptor.FieldType.tpString)
{
char[] sval = (char[])ins.key.oval;
int len = sval.Length;
setSize(pg, len * 2);
setKeyStrOffs(pg, 0, keySpace - len * 2);
setKeyStrSize(pg, 0, len);
setKeyStrOid(pg, 0, ins.oid);
setKeyStrOid(pg, 1, root);
setKeyStrChars(pg, keySpace - len * 2, sval);
}
else if (type == ClassDescriptor.FieldType.tpArrayOfByte)
{
byte[] bval = (byte[])ins.key.oval;
int len = bval.Length;
setSize(pg, len);
setKeyStrOffs(pg, 0, keySpace - len);
setKeyStrSize(pg, 0, len);
setKeyStrOid(pg, 0, ins.oid);
setKeyStrOid(pg, 1, root);
setKeyBytes(pg, keySpace - len, bval);
}
else
{
ins.pack(pg, 0);
setReference(pg, maxItems - 2, root);
}
db.pool.unfix(pg);
return pageId;
}
internal int packObject(XMLElement objElem, ClassDescriptor desc, int offs, ByteBuffer buf)
{
ClassDescriptor.FieldDescriptor[] flds = desc.allFields;
for (int i = 0, n = flds.Length; i < n; i++)
{
ClassDescriptor.FieldDescriptor fd = flds[i];
FieldInfo f = fd.field;
String fieldName = fd.fieldName;
XMLElement elem = (objElem != null) ? objElem.getSibling(fieldName) : null;
switch (fd.type)
{
case ClassDescriptor.FieldType.tpByte:
case ClassDescriptor.FieldType.tpSByte:
buf.extend(offs + 1);
if (elem != null)
{
if (elem.isIntValue())
{
buf.arr[offs] = (byte)elem.IntValue;
}
else if (elem.isRealValue())
{
buf.arr[offs] = (byte)elem.RealValue;
}
else
{
throwException("Conversion for field " + fieldName + " is not possible");
}
}
offs += 1;
continue;
case ClassDescriptor.FieldType.tpBoolean:
buf.extend(offs + 1);
if (elem != null)
{
if (elem.isIntValue())
{
buf.arr[offs] = (byte)(elem.IntValue != 0 ? 1 : 0);
}
else if (elem.isRealValue())
{
buf.arr[offs] = (byte)(elem.RealValue != 0.0 ? 1 : 0);
}
else
{
throwException("Conversion for field " + fieldName + " is not possible");
}
}
offs += 1;
continue;
case ClassDescriptor.FieldType.tpShort:
case ClassDescriptor.FieldType.tpUShort:
case ClassDescriptor.FieldType.tpChar:
buf.extend(offs + 2);
if (elem != null)
{
if (elem.isIntValue())
{
Bytes.pack2(buf.arr, offs, (short)elem.IntValue);
}
else if (elem.isRealValue())
{
Bytes.pack2(buf.arr, offs, (short)elem.RealValue);
}
else
{
throwException("Conversion for field " + fieldName + " is not possible");
}
}
offs += 2;
continue;
case ClassDescriptor.FieldType.tpEnum:
buf.extend(offs + 4);
if (elem != null)
{
if (elem.isIntValue())
{
Bytes.pack4(buf.arr, offs, (int)elem.IntValue);
}
else if (elem.isRealValue())
{
Bytes.pack4(buf.arr, offs, (int)elem.RealValue);
}
else if (elem.isStringValue())
{
try
{
#if CF
Bytes.pack4(buf.arr, offs, (int)ClassDescriptor.parseEnum(f.FieldType, elem.StringValue));
#else
Bytes.pack4(buf.arr, offs, (int)Enum.Parse(f.FieldType, elem.StringValue));
#endif
}
catch (ArgumentException)
{
throwException("Invalid enum value");
}
}
else
{
throwException("Conversion for field " + fieldName + " is not possible");
}
}
offs += 4;
continue;
case ClassDescriptor.FieldType.tpInt:
case ClassDescriptor.FieldType.tpUInt:
buf.extend(offs + 4);
if (elem != null)
{
if (elem.isIntValue())
{
Bytes.pack4(buf.arr, offs, (int)elem.IntValue);
}
else if (elem.isRealValue())
{
Bytes.pack4(buf.arr, offs, (int)elem.RealValue);
}
else
{
throwException("Conversion for field " + fieldName + " is not possible");
}
}
offs += 4;
continue;
case ClassDescriptor.FieldType.tpLong:
case ClassDescriptor.FieldType.tpULong:
buf.extend(offs + 8);
if (elem != null)
{
if (elem.isIntValue())
{
Bytes.pack8(buf.arr, offs, elem.IntValue);
}
else if (elem.isRealValue())
{
Bytes.pack8(buf.arr, offs, (long)elem.RealValue);
}
else
{
throwException("Conversion for field " + fieldName + " is not possible");
}
}
offs += 8;
continue;
case ClassDescriptor.FieldType.tpFloat:
buf.extend(offs + 4);
if (elem != null)
{
if (elem.isIntValue())
{
Bytes.packF4(buf.arr, offs, (float)elem.IntValue);
}
else if (elem.isRealValue())
{
Bytes.packF4(buf.arr, offs, (float)elem.RealValue);
}
else
{
throwException("Conversion for field " + fieldName + " is not possible");
}
}
offs += 4;
continue;
case ClassDescriptor.FieldType.tpDouble:
buf.extend(offs + 8);
if (elem != null)
{
if (elem.isIntValue())
{
Bytes.packF8(buf.arr, offs, (double)elem.IntValue);
}
else if (elem.isRealValue())
{
Bytes.packF8(buf.arr, offs, elem.RealValue);
}
else
{
throwException("Conversion for field " + fieldName + " is not possible");
}
}
offs += 8;
continue;
case ClassDescriptor.FieldType.tpDecimal:
buf.extend(offs + 16);
if (elem != null)
{
decimal d = 0;
if (elem.isIntValue())
{
d = elem.IntValue;
}
else if (elem.isRealValue())
{
d = (decimal)elem.RealValue;
}
else if (elem.isStringValue())
{
try
{
d = Decimal.Parse(elem.StringValue);
}
catch (FormatException)
{
throwException("Invalid date");
}
}
else
{
throwException("Conversion for field " + fieldName + " is not possible");
}
Bytes.packDecimal(buf.arr, offs, d);
}
offs += 16;
continue;
case ClassDescriptor.FieldType.tpGuid:
buf.extend(offs + 16);
if (elem != null)
{
if (elem.isStringValue())
{
Guid guid = new Guid(elem.StringValue);
byte[] bits = guid.ToByteArray();
Array.Copy(bits, 0, buf.arr, offs, 16);
}
else
{
throwException("Conversion for field " + fieldName + " is not possible");
}
}
offs += 16;
continue;
case ClassDescriptor.FieldType.tpDate:
buf.extend(offs + 8);
if (elem != null)
{
if (elem.isIntValue())
{
Bytes.pack8(buf.arr, offs, elem.IntValue);
}
else if (elem.isNullValue())
{
Bytes.pack8(buf.arr, offs, -1);
}
else if (elem.isStringValue())
{
try
{
Bytes.packDate(buf.arr, offs, DateTime.Parse(elem.StringValue));
}
catch (FormatException)
{
throwException("Invalid date");
}
}
else
{
throwException("Conversion for field " + fieldName + " is not possible");
}
}
offs += 8;
continue;
case ClassDescriptor.FieldType.tpString:
if (elem != null)
{
System.String val = null;
if (elem.isIntValue())
{
val = System.Convert.ToString(elem.IntValue);
}
else if (elem.isRealValue())
{
val = elem.RealValue.ToString();
}
else if (elem.isStringValue())
{
val = elem.StringValue;
}
else if (elem.isNullValue())
{
val = null;
}
else
{
throwException("Conversion for field " + fieldName + " is not possible");
}
offs = buf.packString(offs, val);
continue;
}
buf.extend(offs + 4);
Bytes.pack4(buf.arr, offs, -1);
offs += 4;
continue;
case ClassDescriptor.FieldType.tpOid:
case ClassDescriptor.FieldType.tpObject:
{
int oid = 0;
if (elem != null)
{
XMLElement refElem = elem.getSibling("ref");
if (refElem == null)
{
throwException("<ref> element expected");
}
oid = mapId(getIntAttribute(refElem, "id"));
}
buf.extend(offs + 4);
Bytes.pack4(buf.arr, offs, oid);
offs += 4;
continue;
}
case ClassDescriptor.FieldType.tpValue:
offs = packObject(elem, fd.valueDesc, offs, buf);
continue;
case ClassDescriptor.FieldType.tpRaw:
case ClassDescriptor.FieldType.tpArrayOfByte:
case ClassDescriptor.FieldType.tpArrayOfSByte:
offs = importBinary(elem, offs, buf, fieldName);
continue;
case ClassDescriptor.FieldType.tpArrayOfBoolean:
if (elem == null || elem.isNullValue())
{
buf.extend(offs + 4);
Bytes.pack4(buf.arr, offs, -1);
offs += 4;
}
else
{
XMLElement item = elem.getSibling("element");
int len = (item == null) ? 0 : item.Counter;
buf.extend(offs + 4 + len);
Bytes.pack4(buf.arr, offs, len);
offs += 4;
while (--len >= 0)
{
if (item.isIntValue())
{
buf.arr[offs] = (byte)(item.IntValue != 0 ? 1 : 0);
}
else if (item.isRealValue())
{
buf.arr[offs] = (byte)(item.RealValue != 0.0 ? 1 : 0);
}
else
{
throwException("Conversion for field " + fieldName + " is not possible");
}
item = item.NextSibling;
offs += 1;
}
}
continue;
case ClassDescriptor.FieldType.tpArrayOfChar:
case ClassDescriptor.FieldType.tpArrayOfShort:
case ClassDescriptor.FieldType.tpArrayOfUShort:
if (elem == null || elem.isNullValue())
{
buf.extend(offs + 4);
Bytes.pack4(buf.arr, offs, -1);
offs += 4;
}
else
{
XMLElement item = elem.getSibling("element");
int len = (item == null) ? 0 : item.Counter;
buf.extend(offs + 4 + len * 2);
Bytes.pack4(buf.arr, offs, len);
offs += 4;
while (--len >= 0)
{
if (item.isIntValue())
{
Bytes.pack2(buf.arr, offs, (short)item.IntValue);
}
else if (item.isRealValue())
{
Bytes.pack2(buf.arr, offs, (short)item.RealValue);
}
else
{
throwException("Conversion for field " + fieldName + " is not possible");
}
item = item.NextSibling;
offs += 2;
}
}
continue;
case ClassDescriptor.FieldType.tpArrayOfEnum:
if (elem == null || elem.isNullValue())
{
buf.extend(offs + 4);
Bytes.pack4(buf.arr, offs, -1);
offs += 4;
}
else
{
XMLElement item = elem.getSibling("element");
int len = (item == null) ? 0 : item.Counter;
Type elemType = f.FieldType.GetElementType();
buf.extend(offs + 4 + len * 4);
Bytes.pack4(buf.arr, offs, len);
offs += 4;
while (--len >= 0)
{
if (item.isIntValue())
{
Bytes.pack4(buf.arr, offs, (int)item.IntValue);
}
else if (item.isRealValue())
{
Bytes.pack4(buf.arr, offs, (int)item.RealValue);
}
else if (item.isStringValue())
{
try
{
#if CF
Bytes.pack4(buf.arr, offs, (int)ClassDescriptor.parseEnum(elemType, item.StringValue));
#else
Bytes.pack4(buf.arr, offs, (int)Enum.Parse(elemType, item.StringValue));
#endif
}
catch (ArgumentException)
{
throwException("Invalid enum value");
}
}
else
{
throwException("Conversion for field " + fieldName + " is not possible");
}
item = item.NextSibling;
offs += 4;
}
}
continue;
case ClassDescriptor.FieldType.tpArrayOfInt:
case ClassDescriptor.FieldType.tpArrayOfUInt:
if (elem == null || elem.isNullValue())
{
buf.extend(offs + 4);
Bytes.pack4(buf.arr, offs, -1);
offs += 4;
}
else
{
XMLElement item = elem.getSibling("element");
int len = (item == null) ? 0 : item.Counter;
buf.extend(offs + 4 + len * 4);
Bytes.pack4(buf.arr, offs, len);
offs += 4;
while (--len >= 0)
{
if (item.isIntValue())
{
Bytes.pack4(buf.arr, offs, (int)item.IntValue);
}
else if (item.isRealValue())
{
Bytes.pack4(buf.arr, offs, (int)item.RealValue);
}
else
{
throwException("Conversion for field " + fieldName + " is not possible");
}
item = item.NextSibling;
offs += 4;
}
}
continue;
case ClassDescriptor.FieldType.tpArrayOfLong:
case ClassDescriptor.FieldType.tpArrayOfULong:
if (elem == null || elem.isNullValue())
{
buf.extend(offs + 4);
Bytes.pack4(buf.arr, offs, -1);
offs += 4;
}
else
{
XMLElement item = elem.getSibling("element");
int len = (item == null) ? 0 : item.Counter;
buf.extend(offs + 4 + len * 8);
Bytes.pack4(buf.arr, offs, len);
offs += 4;
while (--len >= 0)
{
if (item.isIntValue())
{
Bytes.pack8(buf.arr, offs, item.IntValue);
}
else if (item.isRealValue())
{
Bytes.pack8(buf.arr, offs, (long)item.RealValue);
}
else
{
throwException("Conversion for field " + fieldName + " is not possible");
}
item = item.NextSibling;
offs += 8;
}
}
continue;
case ClassDescriptor.FieldType.tpArrayOfFloat:
if (elem == null || elem.isNullValue())
{
buf.extend(offs + 4);
Bytes.pack4(buf.arr, offs, -1);
offs += 4;
}
else
{
XMLElement item = elem.getSibling("element");
int len = (item == null) ? 0 : item.Counter;
buf.extend(offs + 4 + len * 4);
Bytes.pack4(buf.arr, offs, len);
offs += 4;
while (--len >= 0)
{
if (item.isIntValue())
{
Bytes.packF4(buf.arr, offs, (float)item.IntValue);
}
else if (item.isRealValue())
{
Bytes.packF4(buf.arr, offs, (float)item.RealValue);
}
else
{
throwException("Conversion for field " + fieldName + " is not possible");
}
item = item.NextSibling;
offs += 4;
}
}
continue;
case ClassDescriptor.FieldType.tpArrayOfDouble:
if (elem == null || elem.isNullValue())
{
buf.extend(offs + 4);
Bytes.pack4(buf.arr, offs, -1);
offs += 4;
}
else
{
XMLElement item = elem.getSibling("element");
int len = (item == null) ? 0 : item.Counter;
buf.extend(offs + 4 + len * 8);
Bytes.pack4(buf.arr, offs, len);
offs += 4;
while (--len >= 0)
{
if (item.isIntValue())
{
Bytes.packF8(buf.arr, offs, (double)item.IntValue);
}
else if (item.isRealValue())
{
Bytes.packF8(buf.arr, offs, item.RealValue);
}
else
{
throwException("Conversion for field " + fieldName + " is not possible");
}
item = item.NextSibling;
offs += 8;
}
}
continue;
case ClassDescriptor.FieldType.tpArrayOfDate:
if (elem == null || elem.isNullValue())
{
buf.extend(offs + 4);
Bytes.pack4(buf.arr, offs, -1);
offs += 4;
}
else
{
XMLElement item = elem.getSibling("element");
int len = (item == null) ? 0 : item.Counter;
buf.extend(offs + 4 + len * 8);
Bytes.pack4(buf.arr, offs, len);
offs += 4;
while (--len >= 0)
{
if (item.isNullValue())
{
Bytes.pack8(buf.arr, offs, -1);
}
else if (item.isStringValue())
{
try
{
Bytes.packDate(buf.arr, offs, DateTime.Parse(item.StringValue));
}
catch (FormatException)
{
throwException("Conversion for field " + fieldName + " is not possible");
}
}
item = item.NextSibling;
offs += 8;
}
}
continue;
case ClassDescriptor.FieldType.tpArrayOfDecimal:
if (elem == null || elem.isNullValue())
{
buf.extend(offs + 4);
Bytes.pack4(buf.arr, offs, -1);
offs += 4;
}
else
{
XMLElement item = elem.getSibling("element");
int len = (item == null) ? 0 : item.Counter;
buf.extend(offs + 4 + len * 16);
Bytes.pack4(buf.arr, offs, len);
offs += 4;
while (--len >= 0)
{
if (item.isStringValue())
{
try
{
Bytes.packDecimal(buf.arr, offs, Decimal.Parse(item.StringValue));
}
catch (FormatException)
{
throwException("Conversion for field " + fieldName + " is not possible");
}
}
item = item.NextSibling;
offs += 16;
}
}
continue;
case ClassDescriptor.FieldType.tpArrayOfGuid:
if (elem == null || elem.isNullValue())
{
buf.extend(offs + 4);
Bytes.pack4(buf.arr, offs, -1);
offs += 4;
}
else
{
XMLElement item = elem.getSibling("element");
int len = (item == null) ? 0 : item.Counter;
buf.extend(offs + 4 + len * 16);
Bytes.pack4(buf.arr, offs, len);
offs += 4;
while (--len >= 0)
{
if (item.isStringValue())
{
try
{
Bytes.packGuid(buf.arr, offs, new Guid(item.StringValue));
}
catch (FormatException)
{
throwException("Conversion for field " + fieldName + " is not possible");
}
}
item = item.NextSibling;
offs += 16;
}
}
continue;
case ClassDescriptor.FieldType.tpArrayOfString:
if (elem == null || elem.isNullValue())
{
buf.extend(offs + 4);
Bytes.pack4(buf.arr, offs, -1);
offs += 4;
}
else
{
XMLElement item = elem.getSibling("element");
int len = (item == null) ? 0 : item.Counter;
buf.extend(offs + 4);
Bytes.pack4(buf.arr, offs, len);
offs += 4;
while (--len >= 0)
{
System.String val = null;
if (item.isIntValue())
{
val = System.Convert.ToString(item.IntValue);
}
else if (item.isRealValue())
{
val = item.RealValue.ToString();
}
else if (item.isStringValue())
{
val = item.StringValue;
}
else if (item.isNullValue())
{
val = null;
}
else
{
throwException("Conversion for field " + fieldName + " is not possible");
}
offs = buf.packString(offs, val);
item = item.NextSibling;
}
}
continue;
case ClassDescriptor.FieldType.tpArrayOfObject:
case ClassDescriptor.FieldType.tpArrayOfOid:
case ClassDescriptor.FieldType.tpLink:
if (elem == null || elem.isNullValue())
{
buf.extend(offs + 4);
Bytes.pack4(buf.arr, offs, -1);
offs += 4;
}
else
{
XMLElement item = elem.getSibling("element");
int len = (item == null) ? 0 : item.Counter;
buf.extend(offs + 4 + len * 4);
Bytes.pack4(buf.arr, offs, len);
offs += 4;
while (--len >= 0)
{
XMLElement href = item.getSibling("ref");
if (href == null)
{
throwException("<ref> element expected");
}
int oid = mapId(getIntAttribute(href, "id"));
Bytes.pack4(buf.arr, offs, oid);
item = item.NextSibling;
offs += 4;
}
}
continue;
case ClassDescriptor.FieldType.tpArrayOfValue:
if (elem == null || elem.isNullValue())
{
buf.extend(offs + 4);
Bytes.pack4(buf.arr, offs, -1);
offs += 4;
}
else
{
XMLElement item = elem.getSibling("element");
int len = (item == null) ? 0 : item.Counter;
Bytes.pack4(buf.arr, offs, len);
offs += 4;
ClassDescriptor elemDesc = fd.valueDesc;
while (--len >= 0)
{
offs = packObject(item, elemDesc, offs, buf);
item = item.NextSibling;
}
}
continue;
case ClassDescriptor.FieldType.tpArrayOfRaw:
if (elem == null || elem.isNullValue())
{
buf.extend(offs + 4);
Bytes.pack4(buf.arr, offs, -1);
offs += 4;
}
else
{
XMLElement item = elem.getSibling("element");
int len = (item == null) ? 0 : item.Counter;
Bytes.pack4(buf.arr, offs, len);
offs += 4;
while (--len >= 0)
{
offs = importBinary(item, offs, buf, fieldName);
item = item.NextSibling;
}
}
continue;
}
}
return offs;
}
Key createKey(ClassDescriptor.FieldType type, String val)
{
switch (type)
{
case ClassDescriptor.FieldType.tpBoolean:
return new Key(Int32.Parse(val) != 0);
case ClassDescriptor.FieldType.tpByte:
return new Key(Byte.Parse(val));
case ClassDescriptor.FieldType.tpSByte:
return new Key(SByte.Parse(val));
case ClassDescriptor.FieldType.tpChar:
return new Key((char)Int32.Parse(val));
case ClassDescriptor.FieldType.tpShort:
return new Key(Int16.Parse(val));
case ClassDescriptor.FieldType.tpUShort:
return new Key(UInt16.Parse(val));
case ClassDescriptor.FieldType.tpInt:
return new Key(Int32.Parse(val));
case ClassDescriptor.FieldType.tpUInt:
case ClassDescriptor.FieldType.tpEnum:
return new Key(UInt32.Parse(val));
case ClassDescriptor.FieldType.tpOid:
return new Key(ClassDescriptor.FieldType.tpOid, mapId((int)UInt32.Parse(val)));
case ClassDescriptor.FieldType.tpObject:
return new Key(new PersistentStub(db, mapId((int)UInt32.Parse(val))));
case ClassDescriptor.FieldType.tpLong:
return new Key(Int64.Parse(val));
case ClassDescriptor.FieldType.tpULong:
return new Key(UInt64.Parse(val));
case ClassDescriptor.FieldType.tpFloat:
return new Key(Single.Parse(val));
case ClassDescriptor.FieldType.tpDouble:
return new Key(Double.Parse(val));
case ClassDescriptor.FieldType.tpDecimal:
return new Key(Decimal.Parse(val));
case ClassDescriptor.FieldType.tpGuid:
return new Key(new Guid(val));
case ClassDescriptor.FieldType.tpString:
return new Key(val);
case ClassDescriptor.FieldType.tpArrayOfByte:
{
byte[] buf = new byte[val.Length >> 1];
for (int i = 0; i < buf.Length; i++)
{
buf[i] = (byte)((getHexValue(val[i * 2]) << 4) | getHexValue(val[i * 2 + 1]));
}
return new Key(buf);
}
case ClassDescriptor.FieldType.tpDate:
return new Key(DateTime.Parse(val));
default:
throwException("Bad key type");
break;
}
return null;
}
Key createCompoundKey(ClassDescriptor.FieldType[] types, String[] values)
{
ByteBuffer buf = new ByteBuffer();
int dst = 0;
for (int i = 0; i < types.Length; i++)
{
String val = values[i];
switch (types[i])
{
case ClassDescriptor.FieldType.tpBoolean:
dst = buf.packBool(dst, Int32.Parse(val) != 0);
break;
case ClassDescriptor.FieldType.tpByte:
case ClassDescriptor.FieldType.tpSByte:
dst = buf.packI1(dst, Int32.Parse(val));
break;
case ClassDescriptor.FieldType.tpChar:
case ClassDescriptor.FieldType.tpShort:
case ClassDescriptor.FieldType.tpUShort:
dst = buf.packI2(dst, Int32.Parse(val));
break;
case ClassDescriptor.FieldType.tpInt:
dst = buf.packI4(dst, Int32.Parse(val));
break;
case ClassDescriptor.FieldType.tpEnum:
case ClassDescriptor.FieldType.tpUInt:
dst = buf.packI4(dst, (int)UInt32.Parse(val));
break;
case ClassDescriptor.FieldType.tpObject:
case ClassDescriptor.FieldType.tpOid:
dst = buf.packI4(dst, mapId((int)UInt32.Parse(val)));
break;
case ClassDescriptor.FieldType.tpLong:
dst = buf.packI8(dst, Int64.Parse(val));
break;
case ClassDescriptor.FieldType.tpULong:
dst = buf.packI8(dst, (long)UInt64.Parse(val));
break;
case ClassDescriptor.FieldType.tpDate:
dst = buf.packDate(dst, DateTime.Parse(val));
break;
case ClassDescriptor.FieldType.tpFloat:
dst = buf.packF4(dst, Single.Parse(val));
break;
case ClassDescriptor.FieldType.tpDouble:
dst = buf.packF8(dst, Double.Parse(val));
break;
case ClassDescriptor.FieldType.tpDecimal:
dst = buf.packDecimal(dst, Decimal.Parse(val));
break;
case ClassDescriptor.FieldType.tpGuid:
dst = buf.packGuid(dst, new Guid(val));
break;
case ClassDescriptor.FieldType.tpString:
dst = buf.packString(dst, val);
break;
case ClassDescriptor.FieldType.tpArrayOfByte:
buf.extend(dst + 4 + (val.Length >> 1));
Bytes.pack4(buf.arr, dst, val.Length >> 1);
dst += 4;
for (int j = 0, n = val.Length; j < n; j += 2)
{
buf.arr[dst++] = (byte)((getHexValue(val[j]) << 4) | getHexValue(val[j + 1]));
}
break;
default:
throwException("Bad key type");
break;
}
}
return new Key(buf.toArray());
}
internal static void purge(DatabaseImpl db, int pageId, ClassDescriptor.FieldType type, int height)
{
if (--height != 0)
{
Page pg = db.getPage(pageId);
int n = getnItems(pg) + 1;
if (type == ClassDescriptor.FieldType.tpString || type == ClassDescriptor.FieldType.tpArrayOfByte)
{
// page of strings
while (--n >= 0)
{
purge(db, getKeyStrOid(pg, n), type, height);
}
}
else
{
while (--n >= 0)
{
purge(db, getReference(pg, maxItems - n - 1), type, height);
}
}
db.pool.unfix(pg);
}
db.freePage(pageId);
}
public GeneratedSerializer Generate(ClassDescriptor desc)
{
ModuleBuilder module = EmitAssemblyModule();
Type newCls = EmitClass(module, desc);
return (GeneratedSerializer)module.Assembly.CreateInstance(newCls.Name);
}
private void generatePackMethod(ClassDescriptor desc, MethodBuilder builder)
{
ILGenerator il = builder.GetILGenerator();
il.Emit(OpCodes.Ldarg_2); // obj
il.Emit(OpCodes.Castclass, desc.cls);
obj = il.DeclareLocal(desc.cls);
il.Emit(OpCodes.Stloc_0, obj);
il.Emit(OpCodes.Ldc_I4, ObjectHeader.Sizeof);
offs = il.DeclareLocal(typeof(int));
il.Emit(OpCodes.Stloc_1, offs);
ClassDescriptor.FieldDescriptor[] flds = desc.allFields;
for (int i = 0, n = flds.Length; i < n; i++)
{
ClassDescriptor.FieldDescriptor fd = flds[i];
FieldInfo f = fd.field;
switch (fd.type)
{
case ClassDescriptor.FieldType.tpByte:
case ClassDescriptor.FieldType.tpSByte:
generatePackField(il, f, packI1);
continue;
case ClassDescriptor.FieldType.tpBoolean:
generatePackField(il, f, packBool);
continue;
case ClassDescriptor.FieldType.tpShort:
case ClassDescriptor.FieldType.tpUShort:
case ClassDescriptor.FieldType.tpChar:
generatePackField(il, f, packI2);
continue;
case ClassDescriptor.FieldType.tpEnum:
case ClassDescriptor.FieldType.tpInt:
case ClassDescriptor.FieldType.tpUInt:
generatePackField(il, f, packI4);
continue;
case ClassDescriptor.FieldType.tpLong:
case ClassDescriptor.FieldType.tpULong:
generatePackField(il, f, packI8);
continue;
case ClassDescriptor.FieldType.tpFloat:
generatePackField(il, f, packF4);
continue;
case ClassDescriptor.FieldType.tpDouble:
generatePackField(il, f, packF8);
continue;
case ClassDescriptor.FieldType.tpDecimal:
generatePackField(il, f, packDecimal);
continue;
case ClassDescriptor.FieldType.tpGuid:
generatePackField(il, f, packGuid);
continue;
case ClassDescriptor.FieldType.tpDate:
generatePackField(il, f, packDate);
continue;
case ClassDescriptor.FieldType.tpString:
generatePackField(il, f, packString);
continue;
default:
il.Emit(OpCodes.Ldarg_1); // db
il.Emit(OpCodes.Ldarg_3); // buf
il.Emit(OpCodes.Ldloc_1, offs);
il.Emit(OpCodes.Ldloc_0, obj);
il.Emit(OpCodes.Ldfld, f);
il.Emit(OpCodes.Ldnull); // fd
il.Emit(OpCodes.Ldc_I4, (int)fd.type);
il.Emit(OpCodes.Ldloc_0, obj);
il.Emit(OpCodes.Call, packField);
il.Emit(OpCodes.Stloc_1, offs);
continue;
}
}
il.Emit(OpCodes.Ldloc_1, offs);
il.Emit(OpCodes.Ret);
}
internal void extract(Page pg, int offs, ClassDescriptor.FieldType type)
{
byte[] data = pg.data;
switch (type)
{
case ClassDescriptor.FieldType.tpBoolean:
key = new Key(data[offs] != 0);
break;
case ClassDescriptor.FieldType.tpSByte:
key = new Key((sbyte)data[offs]);
break;
case ClassDescriptor.FieldType.tpByte:
key = new Key(data[offs]);
break;
case ClassDescriptor.FieldType.tpShort:
key = new Key(Bytes.unpack2(data, offs));
break;
case ClassDescriptor.FieldType.tpUShort:
key = new Key((ushort)Bytes.unpack2(data, offs));
break;
case ClassDescriptor.FieldType.tpChar:
key = new Key((char)Bytes.unpack2(data, offs));
break;
case ClassDescriptor.FieldType.tpInt:
key = new Key(Bytes.unpack4(data, offs));
break;
case ClassDescriptor.FieldType.tpEnum:
case ClassDescriptor.FieldType.tpUInt:
case ClassDescriptor.FieldType.tpObject:
case ClassDescriptor.FieldType.tpOid:
key = new Key((uint)Bytes.unpack4(data, offs));
break;
case ClassDescriptor.FieldType.tpLong:
key = new Key(Bytes.unpack8(data, offs));
break;
case ClassDescriptor.FieldType.tpDate:
case ClassDescriptor.FieldType.tpULong:
key = new Key((ulong)Bytes.unpack8(data, offs));
break;
case ClassDescriptor.FieldType.tpFloat:
key = new Key(Bytes.unpackF4(data, offs));
break;
case ClassDescriptor.FieldType.tpDouble:
key = new Key(Bytes.unpackF8(data, offs));
break;
case ClassDescriptor.FieldType.tpGuid:
key = new Key(Bytes.unpackGuid(data, offs));
break;
case ClassDescriptor.FieldType.tpDecimal:
key = new Key(Bytes.unpackDecimal(data, offs));
break;
default:
Debug.Assert(false, "Invalid type");
break;
}
}
internal int exportObject(ClassDescriptor desc, byte[] body, int offs, int indent)
{
ClassDescriptor.FieldDescriptor[] all = desc.allFields;
for (int i = 0, n = all.Length; i < n; i++)
{
ClassDescriptor.FieldDescriptor fd = all[i];
FieldInfo f = fd.field;
indentation(indent);
String fieldName = exportIdentifier(fd.fieldName);
writer.Write("<" + fieldName + ">");
switch (fd.type)
{
case ClassDescriptor.FieldType.tpBoolean:
writer.Write(body[offs++] != 0 ? "1" : "0");
break;
case ClassDescriptor.FieldType.tpByte:
writer.Write(System.Convert.ToString((byte)body[offs++]));
break;
case ClassDescriptor.FieldType.tpSByte:
writer.Write(System.Convert.ToString((sbyte)body[offs++]));
break;
case ClassDescriptor.FieldType.tpChar:
writer.Write(System.Convert.ToString((ushort)Bytes.unpack2(body, offs)));
offs += 2;
break;
case ClassDescriptor.FieldType.tpShort:
writer.Write(System.Convert.ToString((ushort)Bytes.unpack2(body, offs)));
offs += 2;
break;
case ClassDescriptor.FieldType.tpUShort:
writer.Write(System.Convert.ToString((ushort)Bytes.unpack2(body, offs)));
offs += 2;
break;
case ClassDescriptor.FieldType.tpInt:
writer.Write(System.Convert.ToString(Bytes.unpack4(body, offs)));
offs += 4;
break;
case ClassDescriptor.FieldType.tpEnum:
writer.Write(Enum.ToObject(f.FieldType, Bytes.unpack4(body, offs)));
offs += 4;
break;
case ClassDescriptor.FieldType.tpUInt:
writer.Write(System.Convert.ToString((uint)Bytes.unpack4(body, offs)));
offs += 4;
break;
case ClassDescriptor.FieldType.tpLong:
writer.Write(System.Convert.ToString(Bytes.unpack8(body, offs)));
offs += 8;
break;
case ClassDescriptor.FieldType.tpULong:
writer.Write(System.Convert.ToString((ulong)Bytes.unpack8(body, offs)));
offs += 8;
break;
case ClassDescriptor.FieldType.tpFloat:
writer.Write(System.Convert.ToString(Bytes.unpackF4(body, offs)));
offs += 4;
break;
case ClassDescriptor.FieldType.tpDouble:
writer.Write(System.Convert.ToString(Bytes.unpackF8(body, offs)));
offs += 8;
break;
case ClassDescriptor.FieldType.tpGuid:
writer.Write("\"" + Bytes.unpackGuid(body, offs) + "\"");
offs += 16;
break;
case ClassDescriptor.FieldType.tpDecimal:
writer.Write("\"" + Bytes.unpackDecimal(body, offs) + "\"");
offs += 16;
break;
case ClassDescriptor.FieldType.tpString:
offs = exportString(body, offs);
break;
case ClassDescriptor.FieldType.tpDate:
{
long msec = Bytes.unpack8(body, offs);
offs += 8;
if (msec >= 0)
{
writer.Write("\"" + new System.DateTime(msec) + "\"");
}
else
{
writer.Write("null");
}
break;
}
case ClassDescriptor.FieldType.tpObject:
case ClassDescriptor.FieldType.tpOid:
exportRef(Bytes.unpack4(body, offs));
offs += 4;
break;
case ClassDescriptor.FieldType.tpValue:
writer.Write('\n');
offs = exportObject(fd.valueDesc, body, offs, indent + 1);
indentation(indent);
break;
case ClassDescriptor.FieldType.tpRaw:
case ClassDescriptor.FieldType.tpArrayOfByte:
case ClassDescriptor.FieldType.tpArrayOfSByte:
offs = exportBinary(body, offs);
break;
case ClassDescriptor.FieldType.tpArrayOfBoolean:
{
int len = Bytes.unpack4(body, offs);
offs += 4;
if (len < 0)
{
writer.Write("null");
}
else
{
writer.Write('\n');
while (--len >= 0)
{
indentation(indent + 1);
writer.Write("<element>" + (body[offs++] != 0 ? "1" : "0") + "</element>\n");
}
indentation(indent);
}
break;
}
case ClassDescriptor.FieldType.tpArrayOfChar:
{
int len = Bytes.unpack4(body, offs);
offs += 4;
if (len < 0)
{
writer.Write("null");
}
else
{
writer.Write('\n');
while (--len >= 0)
{
indentation(indent + 1);
writer.Write("<element>" + (Bytes.unpack2(body, offs) & 0xFFFF) + "</element>\n");
offs += 2;
}
indentation(indent);
}
break;
}
case ClassDescriptor.FieldType.tpArrayOfShort:
{
int len = Bytes.unpack4(body, offs);
offs += 4;
if (len < 0)
{
writer.Write("null");
}
else
{
writer.Write('\n');
while (--len >= 0)
{
indentation(indent + 1);
writer.Write("<element>" + Bytes.unpack2(body, offs) + "</element>\n");
offs += 2;
}
indentation(indent);
}
break;
}
case ClassDescriptor.FieldType.tpArrayOfUShort:
{
int len = Bytes.unpack4(body, offs);
offs += 4;
if (len < 0)
{
writer.Write("null");
}
else
{
writer.Write('\n');
while (--len >= 0)
{
indentation(indent + 1);
writer.Write("<element>" + (ushort)Bytes.unpack2(body, offs) + "</element>\n");
offs += 2;
}
indentation(indent);
}
break;
}
case ClassDescriptor.FieldType.tpArrayOfInt:
{
int len = Bytes.unpack4(body, offs);
offs += 4;
if (len < 0)
{
writer.Write("null");
}
else
{
writer.Write('\n');
while (--len >= 0)
{
indentation(indent + 1);
writer.Write("<element>" + Bytes.unpack4(body, offs) + "</element>\n");
offs += 4;
}
indentation(indent);
}
break;
}
case ClassDescriptor.FieldType.tpArrayOfEnum:
{
int len = Bytes.unpack4(body, offs);
offs += 4;
if (len < 0)
{
writer.Write("null");
}
else
{
Type elemType = f.FieldType.GetElementType();
writer.Write('\n');
while (--len >= 0)
{
indentation(indent + 1);
writer.Write("<element>" + Enum.ToObject(elemType, Bytes.unpack4(body, offs)) + "</element>\n");
offs += 4;
}
indentation(indent);
}
break;
}
case ClassDescriptor.FieldType.tpArrayOfUInt:
{
int len = Bytes.unpack4(body, offs);
offs += 4;
if (len < 0)
{
writer.Write("null");
}
else
{
writer.Write('\n');
while (--len >= 0)
{
indentation(indent + 1);
writer.Write("<element>" + (uint)Bytes.unpack4(body, offs) + "</element>\n");
offs += 4;
}
indentation(indent);
}
break;
}
case ClassDescriptor.FieldType.tpArrayOfLong:
{
int len = Bytes.unpack4(body, offs);
offs += 4;
if (len < 0)
{
writer.Write("null");
}
else
{
writer.Write('\n');
while (--len >= 0)
{
indentation(indent + 1);
writer.Write("<element>" + Bytes.unpack8(body, offs) + "</element>\n");
offs += 8;
}
indentation(indent);
}
break;
}
case ClassDescriptor.FieldType.tpArrayOfULong:
{
int len = Bytes.unpack4(body, offs);
offs += 4;
if (len < 0)
{
writer.Write("null");
}
else
{
writer.Write('\n');
while (--len >= 0)
{
indentation(indent + 1);
writer.Write("<element>" + (ulong)Bytes.unpack8(body, offs) + "</element>\n");
offs += 8;
}
indentation(indent);
}
break;
}
case ClassDescriptor.FieldType.tpArrayOfFloat:
{
int len = Bytes.unpack4(body, offs);
offs += 4;
if (len < 0)
{
writer.Write("null");
}
else
{
writer.Write('\n');
while (--len >= 0)
{
indentation(indent + 1);
writer.Write("<element>" + Bytes.unpackF4(body, offs) + "</element>\n");
offs += 4;
}
indentation(indent);
}
break;
}
case ClassDescriptor.FieldType.tpArrayOfDouble:
{
int len = Bytes.unpack4(body, offs);
offs += 4;
if (len < 0)
{
writer.Write("null");
}
else
{
writer.Write('\n');
while (--len >= 0)
{
indentation(indent + 1);
writer.Write("<element>" + Bytes.unpackF8(body, offs) + "</element>\n");
offs += 8;
}
indentation(indent);
}
break;
}
case ClassDescriptor.FieldType.tpArrayOfDate:
{
int len = Bytes.unpack4(body, offs);
offs += 4;
if (len < 0)
{
writer.Write("null");
}
else
{
writer.Write('\n');
while (--len >= 0)
{
indentation(indent + 1);
writer.Write("<element>\"" + Bytes.unpackDate(body, offs) + "\"</element>\n");
offs += 8;
}
}
break;
}
case ClassDescriptor.FieldType.tpArrayOfGuid:
{
int len = Bytes.unpack4(body, offs);
offs += 4;
if (len < 0)
{
writer.Write("null");
}
else
{
writer.Write('\n');
while (--len >= 0)
{
writer.Write("<element>\"" + Bytes.unpackGuid(body, offs) + "\"</element>\n");
offs += 16;
}
}
break;
}
case ClassDescriptor.FieldType.tpArrayOfDecimal:
{
int len = Bytes.unpack4(body, offs);
offs += 4;
if (len < 0)
{
writer.Write("null");
}
else
{
writer.Write('\n');
while (--len >= 0)
{
writer.Write("<element>\"" + Bytes.unpackDecimal(body, offs) + "\"</element>\n");
offs += 16;
}
}
break;
}
case ClassDescriptor.FieldType.tpArrayOfString:
{
int len = Bytes.unpack4(body, offs);
offs += 4;
if (len < 0)
{
writer.Write("null");
}
else
{
writer.Write('\n');
while (--len >= 0)
{
indentation(indent + 1);
writer.Write("<element>");
offs = exportString(body, offs);
writer.Write("</element>\n");
}
indentation(indent);
}
break;
}
case ClassDescriptor.FieldType.tpLink:
case ClassDescriptor.FieldType.tpArrayOfObject:
case ClassDescriptor.FieldType.tpArrayOfOid:
{
int len = Bytes.unpack4(body, offs);
offs += 4;
if (len < 0)
{
writer.Write("null");
}
else
{
writer.Write('\n');
while (--len >= 0)
{
indentation(indent + 1);
int oid = Bytes.unpack4(body, offs);
if (oid != 0 && (exportedBitmap[oid >> 5] & (1 << (oid & 31))) == 0)
{
markedBitmap[oid >> 5] |= 1 << (oid & 31);
}
writer.Write("<element><ref id=\"" + oid + "\"/></element>\n");
offs += 4;
}
indentation(indent);
}
break;
}
case ClassDescriptor.FieldType.tpArrayOfValue:
{
int len = Bytes.unpack4(body, offs);
offs += 4;
if (len < 0)
{
writer.Write("null");
}
else
{
writer.Write('\n');
while (--len >= 0)
{
indentation(indent + 1);
writer.Write("<element>\n");
offs = exportObject(fd.valueDesc, body, offs, indent + 2);
indentation(indent + 1);
writer.Write("</element>\n");
}
indentation(indent);
}
break;
}
case ClassDescriptor.FieldType.tpArrayOfRaw:
{
int len = Bytes.unpack4(body, offs);
offs += 4;
if (len < 0)
{
writer.Write("null");
}
else
{
writer.Write('\n');
while (--len >= 0)
{
indentation(indent + 1);
writer.Write("<element>");
offs = exportBinary(body, offs);
writer.Write("</element>\n");
}
indentation(indent);
}
break;
}
}
writer.Write("</" + fieldName + ">\n");
}
return offs;
}
internal void exportAssoc(int oid, byte[] body, int offs, int size, ClassDescriptor.FieldType type)
{
writer.Write(" <ref id=\"" + oid + "\"");
if ((exportedBitmap[oid >> 5] & (1 << (oid & 31))) == 0)
{
markedBitmap[oid >> 5] |= 1 << (oid & 31);
}
if (compoundKeyTypes != null)
{
exportCompoundKey(body, offs, size, type);
}
else
{
writer.Write(" key=\"");
exportKey(body, offs, size, type);
writer.Write("\"");
}
writer.Write("/>\n");
}
internal static OldBtreeResult handlePageUnderflow(DatabaseImpl db, Page pg, int r, ClassDescriptor.FieldType type, OldBtreeKey rem, int height)
{
int nItems = getnItems(pg);
if (type == ClassDescriptor.FieldType.tpString)
{
Page a = db.putPage(getKeyStrOid(pg, r));
int an = getnItems(a);
if (r < nItems)
{
// exists greater page
Page b = db.getPage(getKeyStrOid(pg, r + 1));
int bn = getnItems(b);
int merged_size = (an + bn) * strKeySize + getSize(a) + getSize(b);
if (height != 1)
{
merged_size += getKeyStrSize(pg, r) * 2 + strKeySize * 2;
}
if (merged_size > keySpace)
{
// reallocation of nodes between pages a and b
int i, j, k;
db.pool.unfix(b);
b = db.putPage(getKeyStrOid(pg, r + 1));
int size_a = getSize(a);
int size_b = getSize(b);
int addSize, subSize;
if (height != 1)
{
addSize = getKeyStrSize(pg, r);
subSize = getKeyStrSize(b, 0);
}
else
{
addSize = subSize = getKeyStrSize(b, 0);
}
i = 0;
int prevDelta = (an * strKeySize + size_a) - (bn * strKeySize + size_b);
while (true)
{
i += 1;
int delta = ((an + i) * strKeySize + size_a + addSize * 2) - ((bn - i) * strKeySize + size_b - subSize * 2);
if (delta >= 0)
{
if (delta >= -prevDelta)
i -= 1;
break;
}
size_a += addSize * 2;
size_b -= subSize * 2;
prevDelta = delta;
if (height != 1)
{
addSize = subSize;
subSize = getKeyStrSize(b, i);
}
else
{
addSize = subSize = getKeyStrSize(b, i);
}
}
OldBtreeResult result = OldBtreeResult.Done;
if (i > 0)
{
k = i;
if (height != 1)
{
int len = getKeyStrSize(pg, r);
setSize(a, getSize(a) + len * 2);
setKeyStrOffs(a, an, keySpace - getSize(a));
setKeyStrSize(a, an, len);
memcpy(a, getKeyStrOffs(a, an), pg, getKeyStrOffs(pg, r), len * 2, 1);
k -= 1;
an += 1;
setKeyStrOid(a, an + k, getKeyStrOid(b, k));
setSize(b, getSize(b) - getKeyStrSize(b, k) * 2);
}
for (j = 0; j < k; j++)
{
int len = getKeyStrSize(b, j);
setSize(a, getSize(a) + len * 2);
setSize(b, getSize(b) - len * 2);
setKeyStrOffs(a, an, keySpace - getSize(a));
setKeyStrSize(a, an, len);
setKeyStrOid(a, an, getKeyStrOid(b, j));
memcpy(a, getKeyStrOffs(a, an), b, getKeyStrOffs(b, j), len * 2, 1);
an += 1;
}
rem.getStr(b, i - 1);
result = replaceStrKey(db, pg, r, rem, height);
setnItems(a, an);
setnItems(b, compactifyStrings(b, i));
}
db.pool.unfix(a);
db.pool.unfix(b);
return result;
}
else
{
// merge page b to a
if (height != 1)
{
int r_len = getKeyStrSize(pg, r);
setKeyStrSize(a, an, r_len);
setSize(a, getSize(a) + r_len * 2);
setKeyStrOffs(a, an, keySpace - getSize(a));
memcpy(a, getKeyStrOffs(a, an), pg, getKeyStrOffs(pg, r), r_len * 2, 1);
an += 1;
setKeyStrOid(a, an + bn, getKeyStrOid(b, bn));
}
for (int i = 0; i < bn; i++, an++)
{
setKeyStrSize(a, an, getKeyStrSize(b, i));
setKeyStrOffs(a, an, getKeyStrOffs(b, i) - getSize(a));
setKeyStrOid(a, an, getKeyStrOid(b, i));
}
setSize(a, getSize(a) + getSize(b));
setnItems(a, an);
memcpy(a, keySpace - getSize(a), b, keySpace - getSize(b), getSize(b), 1);
db.pool.unfix(a);
db.pool.unfix(b);
db.freePage(getKeyStrOid(pg, r + 1));
setKeyStrOid(pg, r + 1, getKeyStrOid(pg, r));
return removeStrKey(pg, r);
}
}
else
{
// page b is before a
Page b = db.getPage(getKeyStrOid(pg, r - 1));
int bn = getnItems(b);
int merged_size = (an + bn) * strKeySize + getSize(a) + getSize(b);
if (height != 1)
merged_size += getKeyStrSize(pg, r - 1) * 2 + strKeySize * 2;
if (merged_size > keySpace)
{
// reallocation of nodes between pages a and b
int i, j, k, len;
db.pool.unfix(b);
b = db.putPage(getKeyStrOid(pg, r - 1));
int size_a = getSize(a);
int size_b = getSize(b);
int addSize, subSize;
if (height != 1)
{
addSize = getKeyStrSize(pg, r - 1);
subSize = getKeyStrSize(b, bn - 1);
}
else
{
addSize = subSize = getKeyStrSize(b, bn - 1);
}
i = 0;
int prevDelta = (an * strKeySize + size_a) - (bn * strKeySize + size_b);
while (true)
{
i += 1;
int delta = ((an + i) * strKeySize + size_a + addSize * 2) - ((bn - i) * strKeySize + size_b - subSize * 2);
if (delta >= 0)
{
if (delta >= -prevDelta)
i -= 1;
break;
}
prevDelta = delta;
size_a += addSize * 2;
size_b -= subSize * 2;
if (height != 1)
{
addSize = subSize;
subSize = getKeyStrSize(b, bn - i - 1);
}
else
{
addSize = subSize = getKeyStrSize(b, bn - i - 1);
}
}
OldBtreeResult result = OldBtreeResult.Done;
if (i > 0)
{
k = i;
Debug.Assert(i < bn);
if (height != 1)
{
setSize(b, getSize(b) - getKeyStrSize(b, bn - k) * 2);
memcpy(a, i, a, 0, an + 1, strKeySize);
k -= 1;
setKeyStrOid(a, k, getKeyStrOid(b, bn));
len = getKeyStrSize(pg, r - 1);
setKeyStrSize(a, k, len);
setSize(a, getSize(a) + len * 2);
setKeyStrOffs(a, k, keySpace - getSize(a));
memcpy(a, getKeyStrOffs(a, k), pg, getKeyStrOffs(pg, r - 1), len * 2, 1);
}
else
{
memcpy(a, i, a, 0, an, strKeySize);
}
for (j = 0; j < k; j++)
{
len = getKeyStrSize(b, bn - k + j);
setSize(a, getSize(a) + len * 2);
setSize(b, getSize(b) - len * 2);
setKeyStrOffs(a, j, keySpace - getSize(a));
setKeyStrSize(a, j, len);
setKeyStrOid(a, j, getKeyStrOid(b, bn - k + j));
memcpy(a, getKeyStrOffs(a, j), b, getKeyStrOffs(b, bn - k + j), len * 2, 1);
}
an += i;
setnItems(a, an);
rem.getStr(b, bn - k - 1);
result = replaceStrKey(db, pg, r - 1, rem, height);
setnItems(b, compactifyStrings(b, -i));
}
db.pool.unfix(a);
db.pool.unfix(b);
return result;
}
else
{
// merge page b to a
if (height != 1)
{
memcpy(a, bn + 1, a, 0, an + 1, strKeySize);
int len = getKeyStrSize(pg, r - 1);
setKeyStrSize(a, bn, len);
setSize(a, getSize(a) + len * 2);
setKeyStrOffs(a, bn, keySpace - getSize(a));
setKeyStrOid(a, bn, getKeyStrOid(b, bn));
memcpy(a, getKeyStrOffs(a, bn), pg, getKeyStrOffs(pg, r - 1), len * 2, 1);
an += 1;
}
else
{
memcpy(a, bn, a, 0, an, strKeySize);
}
for (int i = 0; i < bn; i++)
{
setKeyStrOid(a, i, getKeyStrOid(b, i));
setKeyStrSize(a, i, getKeyStrSize(b, i));
setKeyStrOffs(a, i, getKeyStrOffs(b, i) - getSize(a));
}
an += bn;
setnItems(a, an);
setSize(a, getSize(a) + getSize(b));
memcpy(a, keySpace - getSize(a), b, keySpace - getSize(b), getSize(b), 1);
db.pool.unfix(a);
db.pool.unfix(b);
db.freePage(getKeyStrOid(pg, r - 1));
return removeStrKey(pg, r - 1);
}
}
}
else if (type == ClassDescriptor.FieldType.tpArrayOfByte)
{
Page a = db.putPage(getKeyStrOid(pg, r));
int an = getnItems(a);
if (r < nItems)
{
// exists greater page
Page b = db.getPage(getKeyStrOid(pg, r + 1));
int bn = getnItems(b);
int merged_size = (an + bn) * strKeySize + getSize(a) + getSize(b);
if (height != 1)
{
merged_size += getKeyStrSize(pg, r) + strKeySize * 2;
}
if (merged_size > keySpace)
{
// reallocation of nodes between pages a and b
int i, j, k;
db.pool.unfix(b);
b = db.putPage(getKeyStrOid(pg, r + 1));
int size_a = getSize(a);
int size_b = getSize(b);
int addSize, subSize;
if (height != 1)
{
addSize = getKeyStrSize(pg, r);
subSize = getKeyStrSize(b, 0);
}
else
{
addSize = subSize = getKeyStrSize(b, 0);
}
i = 0;
int prevDelta = (an * strKeySize + size_a) - (bn * strKeySize + size_b);
while (true)
{
i += 1;
int delta = ((an + i) * strKeySize + size_a + addSize) - ((bn - i) * strKeySize + size_b - subSize);
if (delta >= 0)
{
if (delta >= -prevDelta)
i -= 1;
break;
}
size_a += addSize;
size_b -= subSize;
prevDelta = delta;
if (height != 1)
{
addSize = subSize;
subSize = getKeyStrSize(b, i);
}
else
{
addSize = subSize = getKeyStrSize(b, i);
}
}
OldBtreeResult result = OldBtreeResult.Done;
if (i > 0)
{
k = i;
if (height != 1)
{
int len = getKeyStrSize(pg, r);
setSize(a, getSize(a) + len);
setKeyStrOffs(a, an, keySpace - getSize(a));
setKeyStrSize(a, an, len);
memcpy(a, getKeyStrOffs(a, an), pg, getKeyStrOffs(pg, r), len, 1);
k -= 1;
an += 1;
setKeyStrOid(a, an + k, getKeyStrOid(b, k));
setSize(b, getSize(b) - getKeyStrSize(b, k));
}
for (j = 0; j < k; j++)
{
int len = getKeyStrSize(b, j);
setSize(a, getSize(a) + len);
setSize(b, getSize(b) - len);
setKeyStrOffs(a, an, keySpace - getSize(a));
setKeyStrSize(a, an, len);
setKeyStrOid(a, an, getKeyStrOid(b, j));
memcpy(a, getKeyStrOffs(a, an), b, getKeyStrOffs(b, j), len, 1);
an += 1;
}
rem.getByteArray(b, i - 1);
result = replaceByteArrayKey(db, pg, r, rem, height);
setnItems(a, an);
setnItems(b, compactifyByteArrays(b, i));
}
db.pool.unfix(a);
db.pool.unfix(b);
return result;
}
else
{
// merge page b to a
if (height != 1)
{
int r_len = getKeyStrSize(pg, r);
setKeyStrSize(a, an, r_len);
setSize(a, getSize(a) + r_len);
setKeyStrOffs(a, an, keySpace - getSize(a));
memcpy(a, getKeyStrOffs(a, an), pg, getKeyStrOffs(pg, r), r_len, 1);
an += 1;
setKeyStrOid(a, an + bn, getKeyStrOid(b, bn));
}
for (int i = 0; i < bn; i++, an++)
{
setKeyStrSize(a, an, getKeyStrSize(b, i));
setKeyStrOffs(a, an, getKeyStrOffs(b, i) - getSize(a));
setKeyStrOid(a, an, getKeyStrOid(b, i));
}
setSize(a, getSize(a) + getSize(b));
setnItems(a, an);
memcpy(a, keySpace - getSize(a), b, keySpace - getSize(b), getSize(b), 1);
db.pool.unfix(a);
db.pool.unfix(b);
db.freePage(getKeyStrOid(pg, r + 1));
setKeyStrOid(pg, r + 1, getKeyStrOid(pg, r));
return removeByteArrayKey(pg, r);
}
}
else
{
// page b is before a
Page b = db.getPage(getKeyStrOid(pg, r - 1));
int bn = getnItems(b);
int merged_size = (an + bn) * strKeySize + getSize(a) + getSize(b);
if (height != 1)
merged_size += getKeyStrSize(pg, r - 1) + strKeySize * 2;
if (merged_size > keySpace)
{
// reallocation of nodes between pages a and b
int i, j, k, len;
db.pool.unfix(b);
b = db.putPage(getKeyStrOid(pg, r - 1));
int size_a = getSize(a);
int size_b = getSize(b);
int addSize, subSize;
if (height != 1)
{
addSize = getKeyStrSize(pg, r - 1);
subSize = getKeyStrSize(b, bn - 1);
}
else
{
addSize = subSize = getKeyStrSize(b, bn - 1);
}
i = 0;
int prevDelta = (an * strKeySize + size_a) - (bn * strKeySize + size_b);
while (true)
{
i += 1;
int delta = ((an + i) * strKeySize + size_a + addSize) - ((bn - i) * strKeySize + size_b - subSize);
if (delta >= 0)
{
if (delta >= -prevDelta)
i -= 1;
break;
}
prevDelta = delta;
size_a += addSize;
size_b -= subSize;
if (height != 1)
{
addSize = subSize;
subSize = getKeyStrSize(b, bn - i - 1);
}
else
{
addSize = subSize = getKeyStrSize(b, bn - i - 1);
}
}
OldBtreeResult result = OldBtreeResult.Done;
if (i > 0)
{
k = i;
Debug.Assert(i < bn);
if (height != 1)
{
setSize(b, getSize(b) - getKeyStrSize(b, bn - k));
memcpy(a, i, a, 0, an + 1, strKeySize);
k -= 1;
setKeyStrOid(a, k, getKeyStrOid(b, bn));
len = getKeyStrSize(pg, r - 1);
setKeyStrSize(a, k, len);
setSize(a, getSize(a) + len);
setKeyStrOffs(a, k, keySpace - getSize(a));
memcpy(a, getKeyStrOffs(a, k), pg, getKeyStrOffs(pg, r - 1), len, 1);
}
else
{
memcpy(a, i, a, 0, an, strKeySize);
}
for (j = 0; j < k; j++)
{
len = getKeyStrSize(b, bn - k + j);
setSize(a, getSize(a) + len);
setSize(b, getSize(b) - len);
setKeyStrOffs(a, j, keySpace - getSize(a));
setKeyStrSize(a, j, len);
setKeyStrOid(a, j, getKeyStrOid(b, bn - k + j));
memcpy(a, getKeyStrOffs(a, j), b, getKeyStrOffs(b, bn - k + j), len, 1);
}
an += i;
setnItems(a, an);
rem.getByteArray(b, bn - k - 1);
result = replaceByteArrayKey(db, pg, r - 1, rem, height);
setnItems(b, compactifyByteArrays(b, -i));
}
db.pool.unfix(a);
db.pool.unfix(b);
return result;
}
else
{
// merge page b to a
if (height != 1)
{
memcpy(a, bn + 1, a, 0, an + 1, strKeySize);
int len = getKeyStrSize(pg, r - 1);
setKeyStrSize(a, bn, len);
setSize(a, getSize(a) + len);
setKeyStrOffs(a, bn, keySpace - getSize(a));
setKeyStrOid(a, bn, getKeyStrOid(b, bn));
memcpy(a, getKeyStrOffs(a, bn), pg, getKeyStrOffs(pg, r - 1), len, 1);
an += 1;
}
else
{
memcpy(a, bn, a, 0, an, strKeySize);
}
for (int i = 0; i < bn; i++)
{
setKeyStrOid(a, i, getKeyStrOid(b, i));
setKeyStrSize(a, i, getKeyStrSize(b, i));
setKeyStrOffs(a, i, getKeyStrOffs(b, i) - getSize(a));
}
an += bn;
setnItems(a, an);
setSize(a, getSize(a) + getSize(b));
memcpy(a, keySpace - getSize(a), b, keySpace - getSize(b), getSize(b), 1);
db.pool.unfix(a);
db.pool.unfix(b);
db.freePage(getKeyStrOid(pg, r - 1));
return removeByteArrayKey(pg, r - 1);
}
}
}
else
{
Page a = db.putPage(getReference(pg, maxItems - r - 1));
int an = getnItems(a);
int itemSize = ClassDescriptor.Sizeof[(int)type];
if (r < nItems)
{
// exists greater page
Page b = db.getPage(getReference(pg, maxItems - r - 2));
int bn = getnItems(b);
Debug.Assert(bn >= an);
if (height != 1)
{
memcpy(a, an, pg, r, 1, itemSize);
an += 1;
bn += 1;
}
int merged_size = (an + bn) * (4 + itemSize);
if (merged_size > keySpace)
{
// reallocation of nodes between pages a and b
int i = bn - ((an + bn) >> 1);
db.pool.unfix(b);
b = db.putPage(getReference(pg, maxItems - r - 2));
memcpy(a, an, b, 0, i, itemSize);
memcpy(b, 0, b, i, bn - i, itemSize);
memcpy(a, maxItems - an - i, b, maxItems - i, i, 4);
memcpy(b, maxItems - bn + i, b, maxItems - bn, bn - i, 4);
memcpy(pg, r, a, an + i - 1, 1, itemSize);
setnItems(b, getnItems(b) - i);
setnItems(a, getnItems(a) + i);
db.pool.unfix(a);
db.pool.unfix(b);
return OldBtreeResult.Done;
}
else
{
// merge page b to a
memcpy(a, an, b, 0, bn, itemSize);
memcpy(a, maxItems - an - bn, b, maxItems - bn, bn, 4);
db.freePage(getReference(pg, maxItems - r - 2));
memcpy(pg, maxItems - nItems, pg, maxItems - nItems - 1, nItems - r - 1, 4);
memcpy(pg, r, pg, r + 1, nItems - r - 1, itemSize);
setnItems(a, getnItems(a) + bn);
setnItems(pg, nItems - 1);
db.pool.unfix(a);
db.pool.unfix(b);
return nItems * (itemSize + 4) < keySpace / 2 ? OldBtreeResult.Underflow : OldBtreeResult.Done;
}
}
else
{
// page b is before a
Page b = db.getPage(getReference(pg, maxItems - r));
int bn = getnItems(b);
Debug.Assert(bn >= an);
if (height != 1)
{
an += 1;
bn += 1;
}
int merged_size = (an + bn) * (4 + itemSize);
if (merged_size > keySpace)
{
// reallocation of nodes between pages a and b
int i = bn - ((an + bn) >> 1);
db.pool.unfix(b);
b = db.putPage(getReference(pg, maxItems - r));
memcpy(a, i, a, 0, an, itemSize);
memcpy(a, 0, b, bn - i, i, itemSize);
memcpy(a, maxItems - an - i, a, maxItems - an, an, 4);
memcpy(a, maxItems - i, b, maxItems - bn, i, 4);
if (height != 1)
{
memcpy(a, i - 1, pg, r - 1, 1, itemSize);
}
memcpy(pg, r - 1, b, bn - i - 1, 1, itemSize);
setnItems(b, getnItems(b) - i);
setnItems(a, getnItems(a) + i);
db.pool.unfix(a);
db.pool.unfix(b);
return OldBtreeResult.Done;
}
else
{
// merge page b to a
memcpy(a, bn, a, 0, an, itemSize);
memcpy(a, 0, b, 0, bn, itemSize);
memcpy(a, maxItems - an - bn, a, maxItems - an, an, 4);
memcpy(a, maxItems - bn, b, maxItems - bn, bn, 4);
if (height != 1)
memcpy(a, bn - 1, pg, r - 1, 1, itemSize);
db.freePage(getReference(pg, maxItems - r));
setReference(pg, maxItems - r, getReference(pg, maxItems - r - 1));
setnItems(a, getnItems(a) + bn);
setnItems(pg, nItems - 1);
db.pool.unfix(a);
db.pool.unfix(b);
return nItems * (itemSize + 4) < keySpace / 2 ? OldBtreeResult.Underflow : OldBtreeResult.Done;
}
}
}
}
internal static void exportPage(DatabaseImpl db, XmlExporter exporter, int pageId, ClassDescriptor.FieldType type, int height)
{
Page pg = db.getPage(pageId);
try
{
int i, n = getnItems(pg);
if (--height != 0)
{
if (type == ClassDescriptor.FieldType.tpString || type == ClassDescriptor.FieldType.tpArrayOfByte)
{
// page of strings
for (i = 0; i <= n; i++)
{
exportPage(db, exporter, getKeyStrOid(pg, i), type, height);
}
}
else
{
for (i = 0; i <= n; i++)
{
exportPage(db, exporter, getReference(pg, maxItems - i - 1), type, height);
}
}
}
else
{
if (type == ClassDescriptor.FieldType.tpString || type == ClassDescriptor.FieldType.tpArrayOfByte)
{
// page of strings
for (i = 0; i < n; i++)
{
exporter.exportAssoc(getKeyStrOid(pg, i), pg.data, OldBtreePage.firstKeyOffs + OldBtreePage.getKeyStrOffs(pg, i), OldBtreePage.getKeyStrSize(pg, i), type);
}
}
else
{
// page of scalars
for (i = 0; i < n; i++)
{
exporter.exportAssoc(getReference(pg, maxItems - 1 - i), pg.data, OldBtreePage.firstKeyOffs + i * ClassDescriptor.Sizeof[(int)type], ClassDescriptor.Sizeof[(int)type], type);
}
}
}
}
finally
{
db.pool.unfix(pg);
}
}
internal static int traverseForward(DatabaseImpl db, int pageId, ClassDescriptor.FieldType type, int height, IPersistent[] result, int pos)
{
Page pg = db.getPage(pageId);
int oid;
try
{
int i, n = getnItems(pg);
if (--height != 0)
{
if (type == ClassDescriptor.FieldType.tpString || type == ClassDescriptor.FieldType.tpArrayOfByte)
{
// page of strings
for (i = 0; i <= n; i++)
{
pos = traverseForward(db, getKeyStrOid(pg, i), type, height, result, pos);
}
}
else
{
for (i = 0; i <= n; i++)
{
pos = traverseForward(db, getReference(pg, maxItems - i - 1), type, height, result, pos);
}
}
}
else
{
if (type == ClassDescriptor.FieldType.tpString || type == ClassDescriptor.FieldType.tpArrayOfByte)
{
// page of strings
for (i = 0; i < n; i++)
{
oid = getKeyStrOid(pg, i);
result[pos++] = db.lookupObject(oid, null);
}
}
else
{
// page of scalars
for (i = 0; i < n; i++)
{
oid = getReference(pg, maxItems - 1 - i);
result[pos++] = db.lookupObject(oid, null);
}
}
}
return pos;
}
finally
{
db.pool.unfix(pg);
}
}
public bool equals(ClassDescriptor cd)
{
if (cd == null || allFields.Length != cd.allFields.Length)
{
return false;
}
for (int i = 0; i < allFields.Length; i++)
{
if (!allFields[i].equals(cd.allFields[i]))
{
return false;
}
}
return true;
}
void exportCompoundKey(byte[] body, int offs, int size, ClassDescriptor.FieldType type)
{
Debug.Assert(type == ClassDescriptor.FieldType.tpArrayOfByte);
int end = offs + size;
for (int i = 0; i < compoundKeyTypes.Length; i++)
{
type = compoundKeyTypes[i];
if (type == ClassDescriptor.FieldType.tpArrayOfByte || type == ClassDescriptor.FieldType.tpString)
{
size = Bytes.unpack4(body, offs);
offs += 4;
}
writer.Write(" key" + i + "=\"");
offs = exportKey(body, offs, size, type);
writer.Write("\"");
}
Debug.Assert(offs == end);
}
internal void resolve()
{
if (resolved)
return;
DatabaseImpl classStorage = (DatabaseImpl)Database;
ClassDescriptor desc = new ClassDescriptor(classStorage, cls);
resolved = true;
if (!desc.equals(this))
{
classStorage.registerClassDescriptor(desc);
}
}
int exportKey(byte[] body, int offs, int size, ClassDescriptor.FieldType type)
{
switch (type)
{
case ClassDescriptor.FieldType.tpBoolean:
writer.Write(body[offs++] != 0 ? "1" : "0");
break;
case ClassDescriptor.FieldType.tpByte:
writer.Write(System.Convert.ToString((byte)body[offs++]));
break;
case ClassDescriptor.FieldType.tpSByte:
writer.Write(System.Convert.ToString((sbyte)body[offs++]));
break;
case ClassDescriptor.FieldType.tpChar:
writer.Write(System.Convert.ToString((ushort)Bytes.unpack2(body, offs)));
offs += 2;
break;
case ClassDescriptor.FieldType.tpShort:
writer.Write(System.Convert.ToString((ushort)Bytes.unpack2(body, offs)));
offs += 2;
break;
case ClassDescriptor.FieldType.tpUShort:
writer.Write(System.Convert.ToString((ushort)Bytes.unpack2(body, offs)));
offs += 2;
break;
case ClassDescriptor.FieldType.tpInt:
writer.Write(System.Convert.ToString(Bytes.unpack4(body, offs)));
offs += 4;
break;
case ClassDescriptor.FieldType.tpUInt:
case ClassDescriptor.FieldType.tpObject:
case ClassDescriptor.FieldType.tpOid:
case ClassDescriptor.FieldType.tpEnum:
writer.Write(System.Convert.ToString((uint)Bytes.unpack4(body, offs)));
offs += 4;
break;
case ClassDescriptor.FieldType.tpLong:
writer.Write(System.Convert.ToString(Bytes.unpack8(body, offs)));
offs += 8;
break;
case ClassDescriptor.FieldType.tpULong:
writer.Write(System.Convert.ToString((ulong)Bytes.unpack8(body, offs)));
offs += 8;
break;
case ClassDescriptor.FieldType.tpFloat:
writer.Write(System.Convert.ToString(Bytes.unpackF4(body, offs)));
offs += 4;
break;
case ClassDescriptor.FieldType.tpDouble:
writer.Write(System.Convert.ToString(Bytes.unpackF8(body, offs)));
offs += 8;
break;
case ClassDescriptor.FieldType.tpGuid:
writer.Write(Bytes.unpackGuid(body, offs).ToString());
offs += 16;
break;
case ClassDescriptor.FieldType.tpDecimal:
writer.Write(Bytes.unpackDecimal(body, offs).ToString());
offs += 16;
break;
case ClassDescriptor.FieldType.tpString:
if (size < 0)
{
string s;
offs = Bytes.unpackString(body, offs - 4, out s);
for (int i = 0; i < s.Length; i++)
{
exportChar(s[i]);
}
}
else
{
for (int i = 0; i < size; i++)
{
exportChar((char)Bytes.unpack2(body, offs));
offs += 2;
}
}
break;
case ClassDescriptor.FieldType.tpArrayOfByte:
for (int i = 0; i < size; i++)
{
byte b = body[offs++];
writer.Write(hexDigit[(b >> 4) & 0xF]);
writer.Write(hexDigit[b & 0xF]);
}
break;
case ClassDescriptor.FieldType.tpDate:
writer.Write(Bytes.unpackDate(body, offs).ToString());
offs += 8;
break;
default:
Debug.Assert(false, "Invalid type");
break;
}
return offs;
}
private void generateNewMethod(ClassDescriptor desc, MethodBuilder builder)
{
ILGenerator il = builder.GetILGenerator();
il.Emit(OpCodes.Newobj, desc.defaultConstructor);
il.Emit(OpCodes.Ret);
}
private void generateUnpackMethod(ClassDescriptor desc, MethodBuilder builder)
{
ILGenerator il = builder.GetILGenerator();
il.Emit(OpCodes.Ldarg_2);
il.Emit(OpCodes.Castclass, desc.cls);
LocalBuilder obj = il.DeclareLocal(desc.cls);
il.Emit(OpCodes.Stloc_0, obj);
il.Emit(OpCodes.Ldc_I4, ObjectHeader.Sizeof);
LocalBuilder offs = il.DeclareLocal(typeof(int));
il.Emit(OpCodes.Stloc_1, offs);
LocalBuilder val = il.DeclareLocal(typeof(object));
ClassDescriptor.FieldDescriptor[] flds = desc.allFields;
for (int i = 0, n = flds.Length; i < n; i++)
{
ClassDescriptor.FieldDescriptor fd = flds[i];
FieldInfo f = fd.field;
if (f == null)
{
switch (fd.type)
{
case ClassDescriptor.FieldType.tpByte:
case ClassDescriptor.FieldType.tpSByte:
case ClassDescriptor.FieldType.tpBoolean:
il.Emit(OpCodes.Ldloc_1, offs);
il.Emit(OpCodes.Ldc_I4_1);
il.Emit(OpCodes.Add);
il.Emit(OpCodes.Stloc_1, offs);
continue;
case ClassDescriptor.FieldType.tpShort:
case ClassDescriptor.FieldType.tpUShort:
case ClassDescriptor.FieldType.tpChar:
il.Emit(OpCodes.Ldloc_1, offs);
il.Emit(OpCodes.Ldc_I4_2);
il.Emit(OpCodes.Add);
il.Emit(OpCodes.Stloc_1, offs);
continue;
case ClassDescriptor.FieldType.tpEnum:
case ClassDescriptor.FieldType.tpInt:
case ClassDescriptor.FieldType.tpUInt:
case ClassDescriptor.FieldType.tpFloat:
il.Emit(OpCodes.Ldloc_1, offs);
il.Emit(OpCodes.Ldc_I4_4);
il.Emit(OpCodes.Add);
il.Emit(OpCodes.Stloc_1, offs);
continue;
case ClassDescriptor.FieldType.tpLong:
case ClassDescriptor.FieldType.tpULong:
case ClassDescriptor.FieldType.tpDate:
case ClassDescriptor.FieldType.tpDouble:
il.Emit(OpCodes.Ldloc_1, offs);
il.Emit(OpCodes.Ldc_I4_8);
il.Emit(OpCodes.Add);
il.Emit(OpCodes.Stloc_1, offs);
continue;
case ClassDescriptor.FieldType.tpDecimal:
case ClassDescriptor.FieldType.tpGuid:
il.Emit(OpCodes.Ldloc_1, offs);
il.Emit(OpCodes.Ldc_I4, 16);
il.Emit(OpCodes.Add);
il.Emit(OpCodes.Stloc_1, offs);
continue;
default:
il.Emit(OpCodes.Ldarg_1); // db
il.Emit(OpCodes.Ldarg_3); // body
il.Emit(OpCodes.Ldloc_1, offs);
il.Emit(OpCodes.Ldnull); // fd
il.Emit(OpCodes.Ldc_I4, (int)fd.type);
il.Emit(OpCodes.Call, skipField);
il.Emit(OpCodes.Stloc_1, offs); // offs
continue;
}
}
else
{
switch (fd.type)
{
case ClassDescriptor.FieldType.tpByte:
il.Emit(OpCodes.Ldloc_0, obj);
il.Emit(OpCodes.Ldarg_3); // body
il.Emit(OpCodes.Ldloc_1, offs);
il.Emit(OpCodes.Ldelem_U1);
il.Emit(OpCodes.Stfld, f);
il.Emit(OpCodes.Ldloc_1, offs);
il.Emit(OpCodes.Ldc_I4_1);
il.Emit(OpCodes.Add);
il.Emit(OpCodes.Stloc_1, offs);
continue;
case ClassDescriptor.FieldType.tpSByte:
il.Emit(OpCodes.Ldloc_0, obj);
il.Emit(OpCodes.Ldarg_3); // body
il.Emit(OpCodes.Ldloc_1, offs);
il.Emit(OpCodes.Ldelem_U1);
il.Emit(OpCodes.Conv_I1);
il.Emit(OpCodes.Stfld, f);
il.Emit(OpCodes.Ldloc_1, offs);
il.Emit(OpCodes.Ldc_I4_1);
il.Emit(OpCodes.Add);
il.Emit(OpCodes.Stloc_1, offs);
continue;
case ClassDescriptor.FieldType.tpBoolean:
il.Emit(OpCodes.Ldloc_0, obj);
il.Emit(OpCodes.Ldarg_3); // body
il.Emit(OpCodes.Ldloc_1, offs);
il.Emit(OpCodes.Ldelem_U1);
il.Emit(OpCodes.Stfld, f);
il.Emit(OpCodes.Ldloc_1, offs);
il.Emit(OpCodes.Ldc_I4_1);
il.Emit(OpCodes.Add);
il.Emit(OpCodes.Stloc_1, offs);
continue;
case ClassDescriptor.FieldType.tpShort:
il.Emit(OpCodes.Ldloc_0, obj);
il.Emit(OpCodes.Ldarg_3); // body
il.Emit(OpCodes.Ldloc_1, offs);
il.Emit(OpCodes.Call, unpackI2);
il.Emit(OpCodes.Stfld, f);
il.Emit(OpCodes.Ldloc_1, offs);
il.Emit(OpCodes.Ldc_I4_2);
il.Emit(OpCodes.Add);
il.Emit(OpCodes.Stloc_1, offs);
continue;
case ClassDescriptor.FieldType.tpUShort:
case ClassDescriptor.FieldType.tpChar:
il.Emit(OpCodes.Ldloc_0, obj);
il.Emit(OpCodes.Ldarg_3); // body
il.Emit(OpCodes.Ldloc_1, offs);
il.Emit(OpCodes.Call, unpackI2);
il.Emit(OpCodes.Conv_U2);
il.Emit(OpCodes.Stfld, f);
il.Emit(OpCodes.Ldloc_1, offs);
il.Emit(OpCodes.Ldc_I4_2);
il.Emit(OpCodes.Add);
il.Emit(OpCodes.Stloc_1, offs);
continue;
case ClassDescriptor.FieldType.tpEnum:
case ClassDescriptor.FieldType.tpInt:
case ClassDescriptor.FieldType.tpUInt:
il.Emit(OpCodes.Ldloc_0, obj);
il.Emit(OpCodes.Ldarg_3); // body
il.Emit(OpCodes.Ldloc_1, offs);
il.Emit(OpCodes.Call, unpackI4);
il.Emit(OpCodes.Stfld, f);
il.Emit(OpCodes.Ldloc_1, offs);
il.Emit(OpCodes.Ldc_I4_4);
il.Emit(OpCodes.Add);
il.Emit(OpCodes.Stloc_1, offs);
continue;
case ClassDescriptor.FieldType.tpLong:
case ClassDescriptor.FieldType.tpULong:
il.Emit(OpCodes.Ldloc_0, obj);
il.Emit(OpCodes.Ldarg_3); // body
il.Emit(OpCodes.Ldloc_1, offs);
il.Emit(OpCodes.Call, unpackI8);
il.Emit(OpCodes.Stfld, f);
il.Emit(OpCodes.Ldloc_1, offs);
il.Emit(OpCodes.Ldc_I4_8);
il.Emit(OpCodes.Add);
il.Emit(OpCodes.Stloc_1, offs);
continue;
case ClassDescriptor.FieldType.tpFloat:
il.Emit(OpCodes.Ldloc_0, obj);
il.Emit(OpCodes.Ldarg_3); // body
il.Emit(OpCodes.Ldloc_1, offs);
il.Emit(OpCodes.Call, unpackF4);
il.Emit(OpCodes.Stfld, f);
il.Emit(OpCodes.Ldloc_1, offs);
il.Emit(OpCodes.Ldc_I4_4);
il.Emit(OpCodes.Add);
il.Emit(OpCodes.Stloc_1, offs);
continue;
case ClassDescriptor.FieldType.tpDouble:
il.Emit(OpCodes.Ldloc_0, obj);
il.Emit(OpCodes.Ldarg_3); // body
il.Emit(OpCodes.Ldloc_1, offs);
il.Emit(OpCodes.Call, unpackF8);
il.Emit(OpCodes.Stfld, f);
il.Emit(OpCodes.Ldloc_1, offs);
il.Emit(OpCodes.Ldc_I4_8);
il.Emit(OpCodes.Add);
il.Emit(OpCodes.Stloc_1, offs);
continue;
case ClassDescriptor.FieldType.tpDecimal:
il.Emit(OpCodes.Ldloc_0, obj);
il.Emit(OpCodes.Ldarg_3); // body
il.Emit(OpCodes.Ldloc_1, offs);
il.Emit(OpCodes.Call, unpackDecimal);
il.Emit(OpCodes.Stfld, f);
il.Emit(OpCodes.Ldloc_1, offs);
il.Emit(OpCodes.Ldc_I4, 16);
il.Emit(OpCodes.Add);
il.Emit(OpCodes.Stloc_1, offs);
continue;
case ClassDescriptor.FieldType.tpGuid:
il.Emit(OpCodes.Ldloc_0, obj);
il.Emit(OpCodes.Ldarg_3); // body
il.Emit(OpCodes.Ldloc_1, offs);
il.Emit(OpCodes.Call, unpackGuid);
il.Emit(OpCodes.Stfld, f);
il.Emit(OpCodes.Ldloc_1, offs);
il.Emit(OpCodes.Ldc_I4, 16);
il.Emit(OpCodes.Add);
il.Emit(OpCodes.Stloc_1, offs);
continue;
case ClassDescriptor.FieldType.tpDate:
il.Emit(OpCodes.Ldloc_0, obj);
il.Emit(OpCodes.Ldarg_3); // body
il.Emit(OpCodes.Ldloc_1, offs);
il.Emit(OpCodes.Call, unpackDate);
il.Emit(OpCodes.Stfld, f);
il.Emit(OpCodes.Ldloc_1, offs);
il.Emit(OpCodes.Ldc_I4_8);
il.Emit(OpCodes.Add);
il.Emit(OpCodes.Stloc_1, offs);
continue;
case ClassDescriptor.FieldType.tpString:
il.Emit(OpCodes.Ldarg_3); // body
il.Emit(OpCodes.Ldloc_1, offs);
il.Emit(OpCodes.Ldloc_0, obj);
il.Emit(OpCodes.Ldflda, f);
il.Emit(OpCodes.Call, unpackString);
il.Emit(OpCodes.Stloc_1, offs);
continue;
default:
il.Emit(OpCodes.Ldarg_1); // db
il.Emit(OpCodes.Ldarg_3); // body
il.Emit(OpCodes.Ldloc_1, offs);
il.Emit(OpCodes.Ldarg_S, 4); // recursiveLoading
il.Emit(OpCodes.Ldloca, val);
il.Emit(OpCodes.Ldnull); // fd
il.Emit(OpCodes.Ldc_I4, (int)fd.type);
il.Emit(OpCodes.Ldloc_0, obj);
il.Emit(OpCodes.Call, unpackField);
il.Emit(OpCodes.Stloc_1, offs); // offs
il.Emit(OpCodes.Ldloc_0, obj);
il.Emit(OpCodes.Ldloc, val);
il.Emit(OpCodes.Castclass, f.FieldType);
il.Emit(OpCodes.Stfld, f);
continue;
}
}
}
il.Emit(OpCodes.Ret);
}
private void generateUnpackMethod(ClassDescriptor desc, MethodBuilder builder)
{
ILGenerator il = builder.GetILGenerator();
il.Emit(OpCodes.Ldarg_2);
il.Emit(OpCodes.Castclass, desc.cls);
LocalBuilder obj = il.DeclareLocal(desc.cls);
il.Emit(OpCodes.Stloc_0, obj);
il.Emit(OpCodes.Ldc_I4, ObjectHeader.Sizeof);
LocalBuilder offs = il.DeclareLocal(typeof(int));
il.Emit(OpCodes.Stloc_1, offs);
LocalBuilder val = il.DeclareLocal(typeof(object));
ClassDescriptor.FieldDescriptor[] flds = desc.allFields;
for (int i = 0, n = flds.Length; i < n; i++)
{
ClassDescriptor.FieldDescriptor fd = flds[i];
FieldInfo f = fd.field;
if (f == null)
{
switch (fd.type)
{
case ClassDescriptor.FieldType.tpByte:
case ClassDescriptor.FieldType.tpSByte:
case ClassDescriptor.FieldType.tpBoolean:
il.Emit(OpCodes.Ldloc_1, offs);
il.Emit(OpCodes.Ldc_I4_1);
il.Emit(OpCodes.Add);
il.Emit(OpCodes.Stloc_1, offs);
continue;
case ClassDescriptor.FieldType.tpShort:
case ClassDescriptor.FieldType.tpUShort:
case ClassDescriptor.FieldType.tpChar:
il.Emit(OpCodes.Ldloc_1, offs);
il.Emit(OpCodes.Ldc_I4_2);
il.Emit(OpCodes.Add);
il.Emit(OpCodes.Stloc_1, offs);
continue;
case ClassDescriptor.FieldType.tpEnum:
case ClassDescriptor.FieldType.tpInt:
case ClassDescriptor.FieldType.tpUInt:
case ClassDescriptor.FieldType.tpFloat:
il.Emit(OpCodes.Ldloc_1, offs);
il.Emit(OpCodes.Ldc_I4_4);
il.Emit(OpCodes.Add);
il.Emit(OpCodes.Stloc_1, offs);
continue;
case ClassDescriptor.FieldType.tpLong:
case ClassDescriptor.FieldType.tpULong:
case ClassDescriptor.FieldType.tpDate:
case ClassDescriptor.FieldType.tpDouble:
il.Emit(OpCodes.Ldloc_1, offs);
il.Emit(OpCodes.Ldc_I4_8);
il.Emit(OpCodes.Add);
il.Emit(OpCodes.Stloc_1, offs);
continue;
case ClassDescriptor.FieldType.tpDecimal:
case ClassDescriptor.FieldType.tpGuid:
il.Emit(OpCodes.Ldloc_1, offs);
il.Emit(OpCodes.Ldc_I4, 16);
il.Emit(OpCodes.Add);
il.Emit(OpCodes.Stloc_1, offs);
continue;
default:
il.Emit(OpCodes.Ldarg_1); // db
il.Emit(OpCodes.Ldarg_3); // body
il.Emit(OpCodes.Ldloc_1, offs);
il.Emit(OpCodes.Ldnull); // fd
il.Emit(OpCodes.Ldc_I4, (int)fd.type);
il.Emit(OpCodes.Call, skipField);
il.Emit(OpCodes.Stloc_1, offs); // offs
continue;
}
}
else
{
switch (fd.type)
{
case ClassDescriptor.FieldType.tpByte:
il.Emit(OpCodes.Ldloc_0, obj);
il.Emit(OpCodes.Ldarg_3); // body
il.Emit(OpCodes.Ldloc_1, offs);
il.Emit(OpCodes.Ldelem_U1);
il.Emit(OpCodes.Stfld, f);
il.Emit(OpCodes.Ldloc_1, offs);
il.Emit(OpCodes.Ldc_I4_1);
il.Emit(OpCodes.Add);
il.Emit(OpCodes.Stloc_1, offs);
continue;
case ClassDescriptor.FieldType.tpSByte:
il.Emit(OpCodes.Ldloc_0, obj);
il.Emit(OpCodes.Ldarg_3); // body
il.Emit(OpCodes.Ldloc_1, offs);
il.Emit(OpCodes.Ldelem_U1);
il.Emit(OpCodes.Conv_I1);
il.Emit(OpCodes.Stfld, f);
il.Emit(OpCodes.Ldloc_1, offs);
il.Emit(OpCodes.Ldc_I4_1);
il.Emit(OpCodes.Add);
il.Emit(OpCodes.Stloc_1, offs);
continue;
case ClassDescriptor.FieldType.tpBoolean:
il.Emit(OpCodes.Ldloc_0, obj);
il.Emit(OpCodes.Ldarg_3); // body
il.Emit(OpCodes.Ldloc_1, offs);
il.Emit(OpCodes.Ldelem_U1);
il.Emit(OpCodes.Stfld, f);
il.Emit(OpCodes.Ldloc_1, offs);
il.Emit(OpCodes.Ldc_I4_1);
il.Emit(OpCodes.Add);
il.Emit(OpCodes.Stloc_1, offs);
continue;
case ClassDescriptor.FieldType.tpShort:
il.Emit(OpCodes.Ldloc_0, obj);
il.Emit(OpCodes.Ldarg_3); // body
il.Emit(OpCodes.Ldloc_1, offs);
il.Emit(OpCodes.Call, unpackI2);
il.Emit(OpCodes.Stfld, f);
il.Emit(OpCodes.Ldloc_1, offs);
il.Emit(OpCodes.Ldc_I4_2);
il.Emit(OpCodes.Add);
il.Emit(OpCodes.Stloc_1, offs);
continue;
case ClassDescriptor.FieldType.tpUShort:
case ClassDescriptor.FieldType.tpChar:
il.Emit(OpCodes.Ldloc_0, obj);
il.Emit(OpCodes.Ldarg_3); // body
il.Emit(OpCodes.Ldloc_1, offs);
il.Emit(OpCodes.Call, unpackI2);
il.Emit(OpCodes.Conv_U2);
il.Emit(OpCodes.Stfld, f);
il.Emit(OpCodes.Ldloc_1, offs);
il.Emit(OpCodes.Ldc_I4_2);
il.Emit(OpCodes.Add);
il.Emit(OpCodes.Stloc_1, offs);
continue;
case ClassDescriptor.FieldType.tpEnum:
case ClassDescriptor.FieldType.tpInt:
case ClassDescriptor.FieldType.tpUInt:
il.Emit(OpCodes.Ldloc_0, obj);
il.Emit(OpCodes.Ldarg_3); // body
il.Emit(OpCodes.Ldloc_1, offs);
il.Emit(OpCodes.Call, unpackI4);
il.Emit(OpCodes.Stfld, f);
il.Emit(OpCodes.Ldloc_1, offs);
il.Emit(OpCodes.Ldc_I4_4);
il.Emit(OpCodes.Add);
il.Emit(OpCodes.Stloc_1, offs);
continue;
case ClassDescriptor.FieldType.tpLong:
case ClassDescriptor.FieldType.tpULong:
il.Emit(OpCodes.Ldloc_0, obj);
il.Emit(OpCodes.Ldarg_3); // body
il.Emit(OpCodes.Ldloc_1, offs);
il.Emit(OpCodes.Call, unpackI8);
il.Emit(OpCodes.Stfld, f);
il.Emit(OpCodes.Ldloc_1, offs);
il.Emit(OpCodes.Ldc_I4_8);
il.Emit(OpCodes.Add);
il.Emit(OpCodes.Stloc_1, offs);
continue;
case ClassDescriptor.FieldType.tpFloat:
il.Emit(OpCodes.Ldloc_0, obj);
il.Emit(OpCodes.Ldarg_3); // body
il.Emit(OpCodes.Ldloc_1, offs);
il.Emit(OpCodes.Call, unpackF4);
il.Emit(OpCodes.Stfld, f);
il.Emit(OpCodes.Ldloc_1, offs);
il.Emit(OpCodes.Ldc_I4_4);
il.Emit(OpCodes.Add);
il.Emit(OpCodes.Stloc_1, offs);
continue;
case ClassDescriptor.FieldType.tpDouble:
il.Emit(OpCodes.Ldloc_0, obj);
il.Emit(OpCodes.Ldarg_3); // body
il.Emit(OpCodes.Ldloc_1, offs);
il.Emit(OpCodes.Call, unpackF8);
il.Emit(OpCodes.Stfld, f);
il.Emit(OpCodes.Ldloc_1, offs);
il.Emit(OpCodes.Ldc_I4_8);
il.Emit(OpCodes.Add);
il.Emit(OpCodes.Stloc_1, offs);
continue;
case ClassDescriptor.FieldType.tpDecimal:
il.Emit(OpCodes.Ldloc_0, obj);
il.Emit(OpCodes.Ldarg_3); // body
il.Emit(OpCodes.Ldloc_1, offs);
il.Emit(OpCodes.Call, unpackDecimal);
il.Emit(OpCodes.Stfld, f);
il.Emit(OpCodes.Ldloc_1, offs);
il.Emit(OpCodes.Ldc_I4, 16);
il.Emit(OpCodes.Add);
il.Emit(OpCodes.Stloc_1, offs);
continue;
case ClassDescriptor.FieldType.tpGuid:
il.Emit(OpCodes.Ldloc_0, obj);
il.Emit(OpCodes.Ldarg_3); // body
il.Emit(OpCodes.Ldloc_1, offs);
il.Emit(OpCodes.Call, unpackGuid);
il.Emit(OpCodes.Stfld, f);
il.Emit(OpCodes.Ldloc_1, offs);
il.Emit(OpCodes.Ldc_I4, 16);
il.Emit(OpCodes.Add);
il.Emit(OpCodes.Stloc_1, offs);
continue;
case ClassDescriptor.FieldType.tpDate:
il.Emit(OpCodes.Ldloc_0, obj);
il.Emit(OpCodes.Ldarg_3); // body
il.Emit(OpCodes.Ldloc_1, offs);
il.Emit(OpCodes.Call, unpackDate);
il.Emit(OpCodes.Stfld, f);
il.Emit(OpCodes.Ldloc_1, offs);
il.Emit(OpCodes.Ldc_I4_8);
il.Emit(OpCodes.Add);
il.Emit(OpCodes.Stloc_1, offs);
continue;
case ClassDescriptor.FieldType.tpString:
il.Emit(OpCodes.Ldarg_3); // body
il.Emit(OpCodes.Ldloc_1, offs);
il.Emit(OpCodes.Ldloc_0, obj);
il.Emit(OpCodes.Ldflda, f);
il.Emit(OpCodes.Call, unpackString);
il.Emit(OpCodes.Stloc_1, offs);
continue;
default:
il.Emit(OpCodes.Ldarg_1); // db
il.Emit(OpCodes.Ldarg_3); // body
il.Emit(OpCodes.Ldloc_1, offs);
il.Emit(OpCodes.Ldarg_S, 4); // recursiveLoading
il.Emit(OpCodes.Ldloca, val);
il.Emit(OpCodes.Ldnull); // fd
il.Emit(OpCodes.Ldc_I4, (int)fd.type);
il.Emit(OpCodes.Ldloc_0, obj);
il.Emit(OpCodes.Call, unpackField);
il.Emit(OpCodes.Stloc_1, offs); // offs
il.Emit(OpCodes.Ldloc_0, obj);
il.Emit(OpCodes.Ldloc, val);
il.Emit(OpCodes.Castclass, f.FieldType);
il.Emit(OpCodes.Stfld, f);
continue;
}
}
}
il.Emit(OpCodes.Ret);
}
private void generatePackMethod(ClassDescriptor desc, MethodBuilder builder)
{
ILGenerator il = builder.GetILGenerator();
il.Emit(OpCodes.Ldarg_2); // obj
il.Emit(OpCodes.Castclass, desc.cls);
obj = il.DeclareLocal(desc.cls);
il.Emit(OpCodes.Stloc_0, obj);
il.Emit(OpCodes.Ldc_I4, ObjectHeader.Sizeof);
offs = il.DeclareLocal(typeof(int));
il.Emit(OpCodes.Stloc_1, offs);
ClassDescriptor.FieldDescriptor[] flds = desc.allFields;
for (int i = 0, n = flds.Length; i < n; i++)
{
ClassDescriptor.FieldDescriptor fd = flds[i];
FieldInfo f = fd.field;
switch (fd.type)
{
case ClassDescriptor.FieldType.tpByte:
case ClassDescriptor.FieldType.tpSByte:
generatePackField(il, f, packI1);
continue;
case ClassDescriptor.FieldType.tpBoolean:
generatePackField(il, f, packBool);
continue;
case ClassDescriptor.FieldType.tpShort:
case ClassDescriptor.FieldType.tpUShort:
case ClassDescriptor.FieldType.tpChar:
generatePackField(il, f, packI2);
continue;
case ClassDescriptor.FieldType.tpEnum:
case ClassDescriptor.FieldType.tpInt:
case ClassDescriptor.FieldType.tpUInt:
generatePackField(il, f, packI4);
continue;
case ClassDescriptor.FieldType.tpLong:
case ClassDescriptor.FieldType.tpULong:
generatePackField(il, f, packI8);
continue;
case ClassDescriptor.FieldType.tpFloat:
generatePackField(il, f, packF4);
continue;
case ClassDescriptor.FieldType.tpDouble:
generatePackField(il, f, packF8);
continue;
case ClassDescriptor.FieldType.tpDecimal:
generatePackField(il, f, packDecimal);
continue;
case ClassDescriptor.FieldType.tpGuid:
generatePackField(il, f, packGuid);
continue;
case ClassDescriptor.FieldType.tpDate:
generatePackField(il, f, packDate);
continue;
case ClassDescriptor.FieldType.tpString:
generatePackField(il, f, packString);
continue;
default:
il.Emit(OpCodes.Ldarg_1); // db
il.Emit(OpCodes.Ldarg_3); // buf
il.Emit(OpCodes.Ldloc_1, offs);
il.Emit(OpCodes.Ldloc_0, obj);
il.Emit(OpCodes.Ldfld, f);
il.Emit(OpCodes.Ldnull); // fd
il.Emit(OpCodes.Ldc_I4, (int)fd.type);
il.Emit(OpCodes.Ldloc_0, obj);
il.Emit(OpCodes.Call, packField);
il.Emit(OpCodes.Stloc_1, offs);
continue;
}
}
il.Emit(OpCodes.Ldloc_1, offs);
il.Emit(OpCodes.Ret);
}
private Type EmitClass(ModuleBuilder module, ClassDescriptor desc)
{
counter += 1;
String generatedClassName = "GeneratedSerializerClass" + counter;
TypeBuilder serializerType = module.DefineType(generatedClassName, TypeAttributes.Public);
Type serializerInterface = typeof(GeneratedSerializer);
serializerType.AddInterfaceImplementation(serializerInterface);
//Add a constructor
//TODO: wasn't used, figure out if was needed
//ConstructorBuilder constructor =
// serializerType.DefineDefaultConstructor(MethodAttributes.Public);
MethodInfo packInterface = serializerInterface.GetMethod("pack");
MethodBuilder packBuilder = GetBuilder(serializerType, packInterface);
generatePackMethod(desc, packBuilder);
serializerType.DefineMethodOverride(packBuilder, packInterface);
MethodInfo unpackInterface = serializerInterface.GetMethod("unpack");
MethodBuilder unpackBuilder = GetBuilder(serializerType, unpackInterface);
generateUnpackMethod(desc, unpackBuilder);
serializerType.DefineMethodOverride(unpackBuilder, unpackInterface);
MethodInfo newInterface = serializerInterface.GetMethod("newInstance");
MethodBuilder newBuilder = GetBuilder(serializerType, newInterface);
generateNewMethod(desc, newBuilder);
serializerType.DefineMethodOverride(newBuilder, newInterface);
serializerType.CreateType();
return serializerType;
}
internal static int markPage(DatabaseImpl db, int pageId, ClassDescriptor.FieldType type, int height)
{
Page pg = db.getGCPage(pageId);
int nPages = 1;
try
{
int i, n = getnItems(pg);
if (--height != 0)
{
if (type == ClassDescriptor.FieldType.tpString || type == ClassDescriptor.FieldType.tpArrayOfByte)
{ // page of strings
for (i = 0; i <= n; i++)
{
nPages += markPage(db, getKeyStrOid(pg, i), type, height);
}
}
else
{
for (i = 0; i <= n; i++)
{
nPages += markPage(db, getReference(pg, maxItems - i - 1), type, height);
}
}
}
else
{
if (type == ClassDescriptor.FieldType.tpString || type == ClassDescriptor.FieldType.tpArrayOfByte)
{ // page of strings
for (i = 0; i < n; i++)
{
db.markOid(getKeyStrOid(pg, i));
}
}
else
{ // page of scalars
for (i = 0; i < n; i++)
{
db.markOid(getReference(pg, maxItems - 1 - i));
}
}
}
}
finally
{
db.pool.unfix(pg);
}
return nPages;
}
