private void _read()
 {
     _magic                  = m_io.EnsureFixedContents(new byte[] { 83, 81, 76, 105, 116, 101, 32, 102, 111, 114, 109, 97, 116, 32, 51, 0 });
     _lenPageMod             = m_io.ReadU2be();
     _writeVersion           = ((Versions)m_io.ReadU1());
     _readVersion            = ((Versions)m_io.ReadU1());
     _reservedSpace          = m_io.ReadU1();
     _maxPayloadFrac         = m_io.ReadU1();
     _minPayloadFrac         = m_io.ReadU1();
     _leafPayloadFrac        = m_io.ReadU1();
     _fileChangeCounter      = m_io.ReadU4be();
     _numPages               = m_io.ReadU4be();
     _firstFreelistTrunkPage = m_io.ReadU4be();
     _numFreelistPages       = m_io.ReadU4be();
     _schemaCookie           = m_io.ReadU4be();
     _schemaFormat           = m_io.ReadU4be();
     _defPageCacheSize       = m_io.ReadU4be();
     _largestRootPage        = m_io.ReadU4be();
     _textEncoding           = ((Encodings)m_io.ReadU4be());
     _userVersion            = m_io.ReadU4be();
     _isIncrementalVacuum    = m_io.ReadU4be();
     _applicationId          = m_io.ReadU4be();
     _reserved               = m_io.ReadBytes(20);
     _versionValidFor        = m_io.ReadU4be();
     _sqliteVersionNumber    = m_io.ReadU4be();
     _rootPage               = new BtreePage(m_io, this, m_root);
 }
Exemplo n.º 2
0
 private void _read()
 {
     _magic = m_io.ReadBytes(16);
     if (!((KaitaiStream.ByteArrayCompare(Magic, new byte[] { 83, 81, 76, 105, 116, 101, 32, 102, 111, 114, 109, 97, 116, 32, 51, 0 }) == 0)))
     {
         throw new ValidationNotEqualError(new byte[] { 83, 81, 76, 105, 116, 101, 32, 102, 111, 114, 109, 97, 116, 32, 51, 0 }, Magic, M_Io, "/seq/0");
     }
     _lenPageMod             = m_io.ReadU2be();
     _writeVersion           = ((Versions)m_io.ReadU1());
     _readVersion            = ((Versions)m_io.ReadU1());
     _reservedSpace          = m_io.ReadU1();
     _maxPayloadFrac         = m_io.ReadU1();
     _minPayloadFrac         = m_io.ReadU1();
     _leafPayloadFrac        = m_io.ReadU1();
     _fileChangeCounter      = m_io.ReadU4be();
     _numPages               = m_io.ReadU4be();
     _firstFreelistTrunkPage = m_io.ReadU4be();
     _numFreelistPages       = m_io.ReadU4be();
     _schemaCookie           = m_io.ReadU4be();
     _schemaFormat           = m_io.ReadU4be();
     _defPageCacheSize       = m_io.ReadU4be();
     _largestRootPage        = m_io.ReadU4be();
     _textEncoding           = ((Encodings)m_io.ReadU4be());
     _userVersion            = m_io.ReadU4be();
     _isIncrementalVacuum    = m_io.ReadU4be();
     _applicationId          = m_io.ReadU4be();
     _reserved               = m_io.ReadBytes(20);
     _versionValidFor        = m_io.ReadU4be();
     _sqliteVersionNumber    = m_io.ReadU4be();
     _rootPage               = new BtreePage(m_io, this, m_root);
 }
Exemplo n.º 3
0
 public override IPersistent[] ToArray()
 {
     IPersistent[] arr = (IPersistent[])Array.CreateInstance(cls, nElems);
     if (root != 0)
     {
         BtreePage.traverseForward((StorageImpl)Storage, root, type, height, arr, 0);
     }
     return(arr);
 }
Exemplo n.º 4
0
        internal void getByteArray(Page pg, int i)
        {
            int len  = BtreePage.getKeyStrSize(pg, i);
            int offs = BtreePage.firstKeyOffs + BtreePage.getKeyStrOffs(pg, i);

            byte[] bval = new byte[len];
            Array.Copy(pg.data, offs, bval, 0, len);
            key = new Key(bval);
        }
Exemplo n.º 5
0
        public override IPersistent[] Get(Key from, Key till)
        {
            ArrayList list = new ArrayList();

            if (root != 0)
            {
                BtreePage.find((StorageImpl)Storage, root, checkKey(from), checkKey(till), this, height, list);
            }
            return((IPersistent[])list.ToArray(cls));
        }
        public override object[] ToArray()
        {
            object[] arr = (object[])Array.CreateInstance(cls, nElems);
#endif
            if (root != 0)
            {
                BtreePage.traverseForward((StorageImpl)Storage, root, type, height, arr, 0);
            }
            return(arr);
        }
Exemplo n.º 7
0
        internal void  getStr(Page pg, int i)
        {
            int len  = BtreePage.getKeyStrSize(pg, i);
            int offs = BtreePage.firstKeyOffs + BtreePage.getKeyStrOffs(pg, i);

            char[] sval = new char[len];
            for (int j = 0; j < len; j++)
            {
                sval[j] = (char)Bytes.unpack2(pg.data, offs);
                offs   += 2;
            }
            key = new Key(sval);
        }
        public override object[] Get(Key from, Key till)
#endif
        {
            ArrayList list = new ArrayList();

            if (root != 0)
            {
                BtreePage.find((StorageImpl)Storage, root, checkKey(from), checkKey(till), this, height, list);
            }
#if USE_GENERICS
            return((V[])list.ToArray(cls));
#else
            return((object[])list.ToArray(cls));
#endif
        }
Exemplo n.º 9
0
        protected override object unpackByteArrayKey(Page pg, int pos)
        {
            int offs = BtreePage.firstKeyOffs + BtreePage.getKeyStrOffs(pg, pos);

            byte[]   data   = pg.data;
            Object[] values = new Object[types.Length];

            for (int i = 0; i < types.Length; i++)
            {
                Object v = null;
                switch (types[i])
                {
                case ClassDescriptor.FieldType.tpBoolean:
                    v = data[offs++] != 0;
                    break;

                case ClassDescriptor.FieldType.tpSByte:
                    v = (sbyte)data[offs++];
                    break;

                case ClassDescriptor.FieldType.tpByte:
                    v = data[offs++];
                    break;

                case ClassDescriptor.FieldType.tpShort:
                    v     = Bytes.unpack2(data, offs);
                    offs += 2;
                    break;

                case ClassDescriptor.FieldType.tpUShort:
                    v     = (ushort)Bytes.unpack2(data, offs);
                    offs += 2;
                    break;

                case ClassDescriptor.FieldType.tpChar:
                    v     = (char)Bytes.unpack2(data, offs);
                    offs += 2;
                    break;

                case ClassDescriptor.FieldType.tpInt:
                    v     = Bytes.unpack4(data, offs);
                    offs += 4;
                    break;

                case ClassDescriptor.FieldType.tpUInt:
                    v     = (uint)Bytes.unpack4(data, offs);
                    offs += 4;
                    break;

                case ClassDescriptor.FieldType.tpOid:
                case ClassDescriptor.FieldType.tpObject:
                {
                    int oid = Bytes.unpack4(data, offs);
                    v     = oid == 0 ? null : ((StorageImpl)Storage).lookupObject(oid, null);
                    offs += 4;
                    break;
                }

                case ClassDescriptor.FieldType.tpLong:
                    v     = Bytes.unpack8(data, offs);
                    offs += 8;
                    break;

                case ClassDescriptor.FieldType.tpDate:
                {
                    v     = new DateTime(Bytes.unpack8(data, offs));
                    offs += 8;
                    break;
                }

                case ClassDescriptor.FieldType.tpULong:
                    v     = (ulong)Bytes.unpack8(data, offs);
                    offs += 8;
                    break;

                case ClassDescriptor.FieldType.tpFloat:
                    v     = Bytes.unpackF4(data, offs);
                    offs += 4;
                    break;

                case ClassDescriptor.FieldType.tpDouble:
                    v     = Bytes.unpackF8(data, offs);
                    offs += 8;
                    break;

                case ClassDescriptor.FieldType.tpDecimal:
                    v     = Bytes.unpackDecimal(data, offs);
                    offs += 16;
                    break;

                case ClassDescriptor.FieldType.tpGuid:
                    v     = Bytes.unpackGuid(data, offs);
                    offs += 16;
                    break;

                case ClassDescriptor.FieldType.tpString:
                {
                    int len = Bytes.unpack4(data, offs);
                    offs += 4;
                    char[] sval = new char[len];
                    for (int j = 0; j < len; j++)
                    {
                        sval[j] = (char)Bytes.unpack2(pg.data, offs);
                        offs   += 2;
                    }
                    v = new String(sval);
                    break;
                }

                case ClassDescriptor.FieldType.tpArrayOfByte:
                {
                    int len = Bytes.unpack4(data, offs);
                    offs += 4;
                    byte[] val = new byte[len];
                    Array.Copy(pg.data, offs, val, 0, len);
                    offs += len;
                    v     = val;
                    break;
                }

                default:
                    Debug.Assert(false, "Invalid type");
                    break;
                }
                values[i] = v;
            }
            return(values);
        }