/// <summary>
/// Begins an array node of the given length.
/// </summary>
/// <param name="length">The length of the array to come.</param>
public override void BeginArrayNode(long length)
{
this.Stream.WriteByte((byte)BinaryEntryType.StartOfArray);
ProperBitConverter.GetBytes(this.buffer, 0, length);
this.Stream.Write(this.buffer, 0, 8);
this.PushArray();
}
/// <summary>
/// Writes a primitive array to the stream.
/// </summary>
/// <typeparam name="T">The element type of the primitive array. Valid element types can be determined using <see cref="FormatterUtilities.IsPrimitiveArrayType(Type)" />.</typeparam>
/// <param name="array">The primitive array to write.</param>
/// <exception cref="System.ArgumentException">Type + typeof(T).Name + is not a valid primitive array type.</exception>
public override void WritePrimitiveArray <T>(T[] array)
{
if (FormatterUtilities.IsPrimitiveArrayType(typeof(T)) == false)
{
throw new ArgumentException("Type " + typeof(T).Name + " is not a valid primitive array type.");
}
int bytesPerElement = PrimitiveSizes[typeof(T)];
int byteCount = array.Length * bytesPerElement;
// Write entry flag
this.Stream.WriteByte((byte)BinaryEntryType.PrimitiveArray);
// Write array length
ProperBitConverter.GetBytes(this.buffer, 0, array.Length);
this.Stream.Write(this.buffer, 0, 4);
// Write size of an element in bytes
ProperBitConverter.GetBytes(this.buffer, 0, bytesPerElement);
this.Stream.Write(this.buffer, 0, 4);
// Write the actual array content
if (typeof(T) == typeof(byte))
{
// We can include a special case for byte arrays, as there's no need to copy that to a buffer
var byteArray = (byte[])(object)array;
this.Stream.Write(byteArray, 0, byteCount);
}
else
{
// Otherwise we copy to a buffer in order to write the entire array into the stream with one call
using (var tempBuffer = Buffer <byte> .Claim(byteCount))
{
if (BitConverter.IsLittleEndian)
{
// We always store in little endian, so we can do a direct memory mapping, which is a lot faster
UnsafeUtilities.MemoryCopy(array, tempBuffer.Array, byteCount, 0, 0);
}
else
{
// We have to convert each individual element to bytes, since the byte order has to be reversed
Action <byte[], int, T> toBytes = (Action <byte[], int, T>)PrimitiveGetBytesMethods[typeof(T)];
var b = tempBuffer.Array;
for (int i = 0; i < array.Length; i++)
{
toBytes(b, i * bytesPerElement, array[i]);
}
}
this.Stream.Write(tempBuffer.Array, 0, byteCount);
}
}
}
/// <summary>
/// Writes an <see cref="ushort" /> value to the stream.
/// </summary>
/// <param name="name">The name of the value. If this is null, no name will be written.</param>
/// <param name="value">The value to write.</param>
public override void WriteUInt16(string name, ushort value)
{
if (name != null)
{
this.Stream.WriteByte((byte)BinaryEntryType.NamedUShort);
this.WriteStringValue(name);
}
else
{
this.Stream.WriteByte((byte)BinaryEntryType.UnnamedUShort);
}
ProperBitConverter.GetBytes(this.buffer, 0, value);
this.Stream.Write(this.buffer, 0, 2);
}
/// <summary>
/// Writes a <see cref="float" /> value to the stream.
/// </summary>
/// <param name="name">The name of the value. If this is null, no name will be written.</param>
/// <param name="value">The value to write.</param>
public override void WriteSingle(string name, float value)
{
if (name != null)
{
this.Stream.WriteByte((byte)BinaryEntryType.NamedFloat);
this.WriteStringValue(name);
}
else
{
this.Stream.WriteByte((byte)BinaryEntryType.UnnamedFloat);
}
ProperBitConverter.GetBytes(this.buffer, 0, value);
this.Stream.Write(this.buffer, 0, 4);
}
/// <summary>
/// Writes an internal reference to the stream.
/// </summary>
/// <param name="name">The name of the value. If this is null, no name will be written.</param>
/// <param name="id">The value to write.</param>
public override void WriteInternalReference(string name, int id)
{
if (name != null)
{
this.Stream.WriteByte((byte)BinaryEntryType.NamedInternalReference);
this.WriteStringValue(name);
}
else
{
this.Stream.WriteByte((byte)BinaryEntryType.UnnamedInternalReference);
}
ProperBitConverter.GetBytes(this.buffer, 0, id);
this.Stream.Write(this.buffer, 0, 4);
}
/// <summary>
/// Writes a <see cref="long" /> value to the stream.
/// </summary>
/// <param name="name">The name of the value. If this is null, no name will be written.</param>
/// <param name="value">The value to write.</param>
public override void WriteInt64(string name, long value)
{
if (name != null)
{
this.Stream.WriteByte((byte)BinaryEntryType.NamedLong);
this.WriteStringValue(name);
}
else
{
this.Stream.WriteByte((byte)BinaryEntryType.UnnamedLong);
}
ProperBitConverter.GetBytes(this.buffer, 0, value);
this.Stream.Write(this.buffer, 0, 8);
}
/// <summary>
/// Writes a <see cref="Guid" /> value to the stream.
/// </summary>
/// <param name="name">The name of the value. If this is null, no name will be written.</param>
/// <param name="value">The value to write.</param>
public override void WriteGuid(string name, Guid value)
{
if (name != null)
{
this.Stream.WriteByte((byte)BinaryEntryType.NamedGuid);
this.WriteStringValue(name);
}
else
{
this.Stream.WriteByte((byte)BinaryEntryType.UnnamedGuid);
}
ProperBitConverter.GetBytes(this.buffer, 0, value);
this.Stream.Write(this.buffer, 0, 16);
}
private void WriteStringValue(string value)
{
bool twoByteString = this.StringRequires16BitSupport(value);
if (twoByteString)
{
this.Stream.WriteByte(1); // Write 16 bit flag
ProperBitConverter.GetBytes(this.buffer, 0, value.Length);
this.Stream.Write(this.buffer, 0, 4);
using (var tempBuffer = Buffer <byte> .Claim(value.Length * 2))
{
var array = tempBuffer.Array;
UnsafeUtilities.StringToBytes(array, value, true);
this.Stream.Write(array, 0, value.Length * 2);
}
}
else
{
this.Stream.WriteByte(0); // Write 8 bit flag
ProperBitConverter.GetBytes(this.buffer, 0, value.Length);
this.Stream.Write(this.buffer, 0, 4);
using (var tempBuffer = Buffer <byte> .Claim(value.Length))
{
var array = tempBuffer.Array;
for (int i = 0; i < value.Length; i++)
{
array[i] = (byte)value[i];
}
this.Stream.Write(array, 0, value.Length);
}
}
}
private void WriteIntValue(int value)
{
ProperBitConverter.GetBytes(this.buffer, 0, value);
this.Stream.Write(this.buffer, 0, 4);
}
