public RuntimeGlobalAccessorImpl(IAutoMemoryManagerFabric gcFabric)
{
var stb = new NativeStructureBuilderImpl(this, "object");
_gcCtx = gcFabric.CreateManagerContext(this);
if (_gcCtx.Integration != null)
{
_gcCtx.Integration.AugmentObjectLayout(stb);
}
stb.UseDefaultFieldAlignment = true;
stb.FieldsAligmnent = null;
stb.StructureAlignment = null;
var typeIdFieldBuilder = stb.DefineField("typeId");
typeIdFieldBuilder.Size = IntPtr.Size;
_objectLayout = stb.Complete();
_typeIdFieldInfo = _objectLayout.Fields.First(f => f.Number == typeIdFieldBuilder.Number);
this.GenerateTypes(stb);
_memoryManager = _gcCtx.CreateManager(_systemMemoryManager, this);
}
private void GenerateTypes(NativeStructureBuilderImpl objectStb)
{
_knownTypes.Add(new IntPtr(_knownTypes.Count), _objectLayout);
var fieldSize = new[] { 1, 2, 4, 8, 16, 32 };
var rnd = new Random(); // TODO: use external seed
var count = 1000;
for (int i = 1; i < count; i++)
{
var stb = new NativeStructureBuilderImpl(this, "t" + i, objectStb);
var fieldsCount = rnd.Next(0, 40);
var hasRefs = false;
for (int j = 0; j < fieldsCount; j++)
{
var f = stb.DefineField("t" + i + "f" + j);
if (rnd.Next(0, 100) < 50)
{
f.IsReference = true;
hasRefs = true;
}
else
{
f.Size = fieldSize[rnd.Next(0, fieldSize.Length)];
}
}
if (!hasRefs)
{
var f = stb.DefineField("t" + i + "f" + fieldsCount);
f.IsReference = true;
}
_knownTypes.Add(new IntPtr(_knownTypes.Count), stb.Complete());
}
}
public NativeStructureBuilderImpl(INativeLayoutContext ctx, string structureName, NativeStructureBuilderImpl other)
{
_ctx = ctx;
this.StructureName = structureName;
this.UseDefaultFieldAlignment = other.UseDefaultFieldAlignment;
this.FieldsAligmnent = other.FieldsAligmnent;
this.StructureAlignment = other.StructureAlignment;
_fields = new List <NativeStructureFieldBuilderImpl>(other._fields);
}
