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Performance Increase of Vector of Structures using .NET BlockCopy (#4830)

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* Added Get<vector_name>Array() method for accessing vectors of structures in C# using Buffer.Blockcopy().

* Added Get<vector_name>Array() method for accessing vectors of structures in C# using Buffer.Blockcopy().

Added Create<Name>VectorBlock() method to add a typed array using Buffer.BlockCopy() to speed up creation of vector of arrays

New Lua files for namespace test

* fixed c++ style issue
This commit is contained in:
Derek Bailey
2018-07-26 13:44:40 -07:00
committed by Wouter van Oortmerssen
parent 6e185d06a7
commit 7b50004ec9
12 changed files with 625 additions and 16 deletions
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23
net/FlatBuffers/Table.cs
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@@ -94,6 +94,29 @@ namespace FlatBuffers
return bb.ToArraySegment(pos, len);
}
// Get the data of a vector whoses offset is stored at "offset" in this object as an
// T[]. If the vector is not present in the ByteBuffer, then a null value will be
// returned.
public T[] __vector_as_array<T>(int offset)
where T : struct
{
if(!BitConverter.IsLittleEndian)
{
throw new NotSupportedException("Getting typed arrays on a Big Endian " +
"system is not support");
}
var o = this.__offset(offset);
if (0 == o)
{
return null;
}
var pos = this.__vector(o);
var len = this.__vector_len(o);
return bb.ToArray<T>(pos, len);
}
// Initialize any Table-derived type to point to the union at the given offset.
public T __union<T>(int offset) where T : struct, IFlatbufferObject
{