public void WriteTo(IBinaryStream stream)
{
foreach (var entry in Entries)
{
stream.WriteLE(entry.AbsoluteOffset);
}
stream.Write(RemainBytes);
}
/// <summary>
/// Writes specified header to a stream.
/// </summary>
/// <param name="header">The header.</param>
/// <param name="stream">The stream.</param>
/// <param name="position">The position.</param>
public static unsafe void Write(BinaryObjectHeader header, IBinaryStream stream, int position)
{
Debug.Assert(stream != null);
Debug.Assert(position >= 0);
stream.Seek(position, SeekOrigin.Begin);
if (BitConverter.IsLittleEndian)
{
stream.Write((byte *)&header, Size);
}
else
{
header.Write(stream);
}
}
protected override void WriteArgs(IBinaryStream writer)
{
if (IsOffset)
{
WriteString(writer);
}
else
{
var startOffset = (int)writer.Position + 9;
var endOffset = (int)writer.Position + 9 + writer.GetStringZByteCount(Content);
writer.WriteLE(startOffset);
writer.Write((byte)0x01);
writer.WriteLE(endOffset);
WriteString(writer);
}
}
/// <summary>
/// Tests the stream.
/// </summary>
private static unsafe void TestStream(IBinaryStream stream, bool sameArr, Action flush)
{
Action seek = () => Assert.AreEqual(0, stream.Seek(0, SeekOrigin.Begin));
Action<Action, Func<object>, object> check = (write, read, expectedResult) =>
{
seek();
write();
flush();
seek();
Assert.AreEqual(expectedResult, read());
};
// Arrays.
Assert.AreEqual(sameArr, stream.IsSameArray(stream.GetArray()));
Assert.IsFalse(stream.IsSameArray(new byte[1]));
Assert.IsFalse(stream.IsSameArray(stream.GetArrayCopy()));
// byte*
byte* bytes = stackalloc byte[10];
*bytes = 1;
*(bytes + 1) = 2;
stream.Write(bytes, 2);
Assert.AreEqual(2, stream.Position);
flush();
seek();
Assert.AreEqual(sameArr ? 256 : 2, stream.Remaining);
byte* bytes2 = stackalloc byte[2];
stream.Read(bytes2, 2);
Assert.AreEqual(1, *bytes2);
Assert.AreEqual(2, *(bytes2 + 1));
// char*
seek();
char* chars = stackalloc char[10];
*chars = 'a';
*(chars + 1) = 'b';
Assert.AreEqual(2, stream.WriteString(chars, 2, 2, Encoding.ASCII));
flush();
seek();
stream.Read(bytes2, 2);
Assert.AreEqual('a', *bytes2);
Assert.AreEqual('b', *(bytes2 + 1));
// Others.
check(() => stream.Write(new byte[] {3, 4, 5}, 1, 2), () => stream.ReadByteArray(2), new byte[] {4, 5});
check(() => stream.WriteBool(true), () => stream.ReadBool(), true);
check(() => stream.WriteBoolArray(new[] {true, false}), () => stream.ReadBoolArray(2),
new[] {true, false});
check(() => stream.WriteByte(4), () => stream.ReadByte(), 4);
check(() => stream.WriteByteArray(new byte[] {4, 5, 6}), () => stream.ReadByteArray(3),
new byte[] {4, 5, 6});
check(() => stream.WriteChar('x'), () => stream.ReadChar(), 'x');
check(() => stream.WriteCharArray(new[] {'a', 'b'}), () => stream.ReadCharArray(2), new[] {'a', 'b'});
check(() => stream.WriteDouble(4), () => stream.ReadDouble(), 4d);
check(() => stream.WriteDoubleArray(new[] {4d}), () => stream.ReadDoubleArray(1), new[] {4d});
check(() => stream.WriteFloat(4), () => stream.ReadFloat(), 4f);
check(() => stream.WriteFloatArray(new[] {4f}), () => stream.ReadFloatArray(1), new[] {4f});
check(() => stream.WriteInt(4), () => stream.ReadInt(), 4);
check(() => stream.WriteInt(0, 4), () => stream.ReadInt(), 4);
check(() => stream.WriteIntArray(new[] {4}), () => stream.ReadIntArray(1), new[] {4});
check(() => stream.WriteLong(4), () => stream.ReadLong(), 4L);
check(() => stream.WriteLongArray(new[] {4L}), () => stream.ReadLongArray(1), new[] {4L});
check(() => stream.WriteShort(4), () => stream.ReadShort(), (short)4);
check(() => stream.WriteShortArray(new short[] {4}), () => stream.ReadShortArray(1), new short[] {4});
}
/// <summary>
/// Internal mutation routine.
/// </summary>
/// <param name="inStream">Input stream.</param>
/// <param name="outStream">Output stream.</param>
/// <param name="ctx">Context.</param>
/// <param name="changeHash">WHether hash should be changed.</param>
/// <param name="vals">Values to be replaced.</param>
/// <returns>Mutated object.</returns>
private void Mutate0(Context ctx, BinaryHeapStream inStream, IBinaryStream outStream,
bool changeHash, IDictionary <int, BinaryBuilderField> vals)
{
int inStartPos = inStream.Position;
int outStartPos = outStream.Position;
byte inHdr = inStream.ReadByte();
if (inHdr == BinaryUtils.HdrNull)
{
outStream.WriteByte(BinaryUtils.HdrNull);
}
else if (inHdr == BinaryUtils.HdrHnd)
{
int inHnd = inStream.ReadInt();
int oldPos = inStartPos - inHnd;
int newPos;
if (ctx.OldToNew(oldPos, out newPos))
{
// Handle is still valid.
outStream.WriteByte(BinaryUtils.HdrHnd);
outStream.WriteInt(outStartPos - newPos);
}
else
{
// Handle is invalid, write full object.
int inRetPos = inStream.Position;
inStream.Seek(oldPos, SeekOrigin.Begin);
Mutate0(ctx, inStream, outStream, false, EmptyVals);
inStream.Seek(inRetPos, SeekOrigin.Begin);
}
}
else if (inHdr == BinaryUtils.HdrFull)
{
var inHeader = BinaryObjectHeader.Read(inStream, inStartPos);
BinaryUtils.ValidateProtocolVersion(inHeader.Version);
int hndPos;
if (ctx.AddOldToNew(inStartPos, outStartPos, out hndPos))
{
// Object could be cached in parent builder.
BinaryBuilderField cachedVal;
if (_parent._cache != null && _parent._cache.TryGetValue(inStartPos, out cachedVal))
{
WriteField(ctx, cachedVal);
}
else
{
// New object, write in full form.
var inSchema = BinaryObjectSchemaSerializer.ReadSchema(inStream, inStartPos, inHeader,
_desc.Schema, _binary.Marshaller.Ignite);
var outSchema = BinaryObjectSchemaHolder.Current;
var schemaIdx = outSchema.PushSchema();
try
{
// Skip header as it is not known at this point.
outStream.Seek(BinaryObjectHeader.Size, SeekOrigin.Current);
if (inSchema != null)
{
foreach (var inField in inSchema)
{
BinaryBuilderField fieldVal;
var fieldFound = vals.TryGetValue(inField.Id, out fieldVal);
if (fieldFound && fieldVal == BinaryBuilderField.RmvMarker)
{
continue;
}
outSchema.PushField(inField.Id, outStream.Position - outStartPos);
if (!fieldFound)
{
fieldFound = _parent._cache != null &&
_parent._cache.TryGetValue(inField.Offset + inStartPos,
out fieldVal);
}
if (fieldFound)
{
WriteField(ctx, fieldVal);
vals.Remove(inField.Id);
}
else
{
// Field is not tracked, re-write as is.
inStream.Seek(inField.Offset + inStartPos, SeekOrigin.Begin);
Mutate0(ctx, inStream, outStream, false, EmptyVals);
}
}
}
// Write remaining new fields.
foreach (var valEntry in vals)
{
if (valEntry.Value == BinaryBuilderField.RmvMarker)
{
continue;
}
outSchema.PushField(valEntry.Key, outStream.Position - outStartPos);
WriteField(ctx, valEntry.Value);
}
var flags = inHeader.IsUserType
? BinaryObjectHeader.Flag.UserType
: BinaryObjectHeader.Flag.None;
if (inHeader.IsCustomDotNetType)
{
flags |= BinaryObjectHeader.Flag.CustomDotNetType;
}
// Write raw data.
int outRawOff = outStream.Position - outStartPos;
if (inHeader.HasRaw)
{
var inRawOff = inHeader.GetRawOffset(inStream, inStartPos);
var inRawLen = inHeader.SchemaOffset - inRawOff;
flags |= BinaryObjectHeader.Flag.HasRaw;
outStream.Write(inStream.InternalArray, inStartPos + inRawOff, inRawLen);
}
// Write schema
int outSchemaOff = outRawOff;
var schemaPos = outStream.Position;
int outSchemaId;
if (inHeader.IsCompactFooter)
{
flags |= BinaryObjectHeader.Flag.CompactFooter;
}
var hasSchema = outSchema.WriteSchema(outStream, schemaIdx, out outSchemaId, ref flags);
if (hasSchema)
{
outSchemaOff = schemaPos - outStartPos;
flags |= BinaryObjectHeader.Flag.HasSchema;
if (inHeader.HasRaw)
{
outStream.WriteInt(outRawOff);
}
if (_desc.Schema.Get(outSchemaId) == null)
{
_desc.Schema.Add(outSchemaId, outSchema.GetSchema(schemaIdx));
}
}
var outLen = outStream.Position - outStartPos;
var outHash = inHeader.HashCode;
if (changeHash)
{
// Get from identity resolver.
outHash = BinaryArrayEqualityComparer.GetHashCode(outStream,
outStartPos + BinaryObjectHeader.Size,
schemaPos - outStartPos - BinaryObjectHeader.Size);
}
var outHeader = new BinaryObjectHeader(inHeader.TypeId, outHash, outLen,
outSchemaId, outSchemaOff, flags);
BinaryObjectHeader.Write(outHeader, outStream, outStartPos);
outStream.Seek(outStartPos + outLen, SeekOrigin.Begin); // seek to the end of the object
}
finally
{
outSchema.PopSchema(schemaIdx);
}
}
}
else
{
// Object has already been written, write as handle.
outStream.WriteByte(BinaryUtils.HdrHnd);
outStream.WriteInt(outStartPos - hndPos);
}
// Synchronize input stream position.
inStream.Seek(inStartPos + inHeader.Length, SeekOrigin.Begin);
}
else
{
// Try writing as well-known type with fixed size.
outStream.WriteByte(inHdr);
if (!WriteAsPredefined(inHdr, inStream, outStream, ctx))
{
throw new IgniteException("Unexpected header [position=" + (inStream.Position - 1) +
", header=" + inHdr + ']');
}
}
}
/// <summary>
/// Transfer bytes from one stream to another.
/// </summary>
/// <param name="inStream">Input stream.</param>
/// <param name="outStream">Output stream.</param>
/// <param name="cnt">Bytes count.</param>
private static void TransferBytes(BinaryHeapStream inStream, IBinaryStream outStream, int cnt)
{
outStream.Write(inStream.InternalArray, inStream.Position, cnt);
inStream.Seek(cnt, SeekOrigin.Current);
}
/** <inheritDoc /> */
public override void Write(byte[] buffer, int offset, int count)
{
_stream.Write(buffer, offset, count);
}
protected override void WriteArgs(IBinaryStream writer)
{
writer.Write(Args);
}
/// <summary>
/// Tests the stream.
/// </summary>
private static unsafe void TestStream(IBinaryStream stream, bool sameArr, Action flush)
{
Action seek = () => Assert.AreEqual(0, stream.Seek(0, SeekOrigin.Begin));
Action <Action, Func <object>, object> check = (write, read, expectedResult) =>
{
seek();
write();
flush();
seek();
Assert.AreEqual(expectedResult, read());
};
// Arrays.
if (stream.CanGetArray)
{
Assert.AreEqual(sameArr, stream.IsSameArray(stream.GetArray()));
}
Assert.IsFalse(stream.IsSameArray(new byte[1]));
Assert.IsFalse(stream.IsSameArray(stream.GetArrayCopy()));
// byte*
byte *bytes = stackalloc byte[10];
*bytes = 1;
*(bytes + 1) = 2;
stream.Write(bytes, 2);
Assert.AreEqual(2, stream.Position);
var proc = new SumStreamProcessor();
Assert.AreEqual(0, stream.Apply(proc, 0));
Assert.AreEqual(1, stream.Apply(proc, 1));
Assert.AreEqual(3, stream.Apply(proc, 2));
flush();
seek();
Assert.AreEqual(sameArr ? 256 : 2, stream.Remaining);
byte *bytes2 = stackalloc byte[2];
stream.Read(bytes2, 2);
Assert.AreEqual(1, *bytes2);
Assert.AreEqual(2, *(bytes2 + 1));
// char*
seek();
char *chars = stackalloc char[10];
*chars = 'a';
*(chars + 1) = 'b';
Assert.AreEqual(2, stream.WriteString(chars, 2, 2, Encoding.ASCII));
flush();
seek();
stream.Read(bytes2, 2);
Assert.AreEqual('a', *bytes2);
Assert.AreEqual('b', *(bytes2 + 1));
// Others.
check(() => stream.Write(new byte[] { 3, 4, 5 }, 1, 2), () => stream.ReadByteArray(2), new byte[] { 4, 5 });
check(() => stream.WriteBool(true), () => stream.ReadBool(), true);
check(() => stream.WriteBoolArray(new[] { true, false }), () => stream.ReadBoolArray(2),
new[] { true, false });
check(() => stream.WriteByte(4), () => stream.ReadByte(), 4);
check(() => stream.WriteByteArray(new byte[] { 4, 5, 6 }), () => stream.ReadByteArray(3),
new byte[] { 4, 5, 6 });
check(() => stream.WriteChar('x'), () => stream.ReadChar(), 'x');
check(() => stream.WriteCharArray(new[] { 'a', 'b' }), () => stream.ReadCharArray(2), new[] { 'a', 'b' });
check(() => stream.WriteDouble(4), () => stream.ReadDouble(), 4d);
check(() => stream.WriteDoubleArray(new[] { 4d }), () => stream.ReadDoubleArray(1), new[] { 4d });
check(() => stream.WriteFloat(4), () => stream.ReadFloat(), 4f);
check(() => stream.WriteFloatArray(new[] { 4f }), () => stream.ReadFloatArray(1), new[] { 4f });
check(() => stream.WriteInt(4), () => stream.ReadInt(), 4);
check(() => stream.WriteInt(0, 4), () => stream.ReadInt(), 4);
check(() => stream.WriteIntArray(new[] { 4 }), () => stream.ReadIntArray(1), new[] { 4 });
check(() => stream.WriteLong(4), () => stream.ReadLong(), 4L);
check(() => stream.WriteLongArray(new[] { 4L }), () => stream.ReadLongArray(1), new[] { 4L });
check(() => stream.WriteShort(4), () => stream.ReadShort(), (short)4);
check(() => stream.WriteShortArray(new short[] { 4 }), () => stream.ReadShortArray(1), new short[] { 4 });
}
/// <summary>
/// Writes an array of fields to a stream.
/// </summary>
/// <param name="fields">Fields.</param>
/// <param name="stream">Stream.</param>
/// <param name="offset">Offset in the array.</param>
/// <param name="count">Field count to write.</param>
/// <param name="compact">Compact mode without field ids.</param>
/// <returns>
/// Flags according to offset sizes: <see cref="BinaryObjectHeader.Flag.OffsetOneByte" />,
/// <see cref="BinaryObjectHeader.Flag.OffsetTwoBytes" />, or 0.
/// </returns>
public static unsafe BinaryObjectHeader.Flag WriteSchema(BinaryObjectSchemaField[] fields, IBinaryStream stream, int offset,
int count, bool compact)
{
Debug.Assert(fields != null);
Debug.Assert(stream != null);
Debug.Assert(count > 0);
Debug.Assert(offset >= 0);
Debug.Assert(offset < fields.Length);
unchecked
{
// Last field is the farthest in the stream
var maxFieldOffset = fields[offset + count - 1].Offset;
if (compact)
{
if (maxFieldOffset <= byte.MaxValue)
{
for (int i = offset; i < count + offset; i++)
stream.WriteByte((byte)fields[i].Offset);
return BinaryObjectHeader.Flag.OffsetOneByte;
}
if (maxFieldOffset <= ushort.MaxValue)
{
for (int i = offset; i < count + offset; i++)
stream.WriteShort((short)fields[i].Offset);
return BinaryObjectHeader.Flag.OffsetTwoBytes;
}
for (int i = offset; i < count + offset; i++)
stream.WriteInt(fields[i].Offset);
}
else
{
if (maxFieldOffset <= byte.MaxValue)
{
for (int i = offset; i < count + offset; i++)
{
var field = fields[i];
stream.WriteInt(field.Id);
stream.WriteByte((byte)field.Offset);
}
return BinaryObjectHeader.Flag.OffsetOneByte;
}
if (maxFieldOffset <= ushort.MaxValue)
{
for (int i = offset; i < count + offset; i++)
{
var field = fields[i];
stream.WriteInt(field.Id);
stream.WriteShort((short)field.Offset);
}
return BinaryObjectHeader.Flag.OffsetTwoBytes;
}
if (BitConverter.IsLittleEndian)
{
fixed (BinaryObjectSchemaField* ptr = &fields[offset])
{
stream.Write((byte*)ptr, count / BinaryObjectSchemaField.Size);
}
}
else
{
for (int i = offset; i < count + offset; i++)
{
var field = fields[i];
stream.WriteInt(field.Id);
stream.WriteInt(field.Offset);
}
}
}
return BinaryObjectHeader.Flag.None;
}
}
