internal void pack(Page pg, int i)
{
byte[] dst = pg.data;
switch (key.type)
{
case ClassDescriptor.FieldType.tpBoolean:
case ClassDescriptor.FieldType.tpSByte:
case ClassDescriptor.FieldType.tpByte:
dst[BtreePage.firstKeyOffs + i] = (byte)key.ival;
break;
case ClassDescriptor.FieldType.tpShort:
case ClassDescriptor.FieldType.tpUShort:
case ClassDescriptor.FieldType.tpChar:
Bytes.pack2(dst, BtreePage.firstKeyOffs + i * 2, (short)key.ival);
break;
case ClassDescriptor.FieldType.tpInt:
case ClassDescriptor.FieldType.tpUInt:
case ClassDescriptor.FieldType.tpEnum:
case ClassDescriptor.FieldType.tpObject:
case ClassDescriptor.FieldType.tpOid:
Bytes.pack4(dst, BtreePage.firstKeyOffs + i * 4, key.ival);
break;
case ClassDescriptor.FieldType.tpLong:
case ClassDescriptor.FieldType.tpULong:
case ClassDescriptor.FieldType.tpDate:
Bytes.pack8(dst, BtreePage.firstKeyOffs + i * 8, key.lval);
break;
case ClassDescriptor.FieldType.tpFloat:
Bytes.packF4(dst, BtreePage.firstKeyOffs + i * 4, (float)key.dval);
break;
case ClassDescriptor.FieldType.tpDouble:
Bytes.packF8(dst, BtreePage.firstKeyOffs + i * 8, key.dval);
break;
case ClassDescriptor.FieldType.tpDecimal:
Bytes.packDecimal(dst, BtreePage.firstKeyOffs + i * 16, key.dec);
break;
case ClassDescriptor.FieldType.tpGuid:
Bytes.packGuid(dst, BtreePage.firstKeyOffs + i * 16, key.guid);
break;
default:
Debug.Assert(false, "Invalid type");
break;
}
Bytes.pack4(dst, BtreePage.firstKeyOffs + (BtreePage.maxItems - i - 1) * 4, oid);
}
public int packF4(int offs, float val)
{
extend(offs + 4);
Bytes.packF4(arr, offs, val);
return(offs + 4);
}