public void DecrementRefCount_Test()
{
uint minUsedBlocks = Heap.FBlock->used;
int startNumObjs = Kernel.FOS_System.GC.NumObjs;
Kernel.FOS_System.Type newObjType = new TestType();
byte* newObjPtr = (byte*)Kernel.FOS_System.GC.NewObj(newObjType);
GCHeader* newObjHeaderPtr = (GCHeader*)(newObjPtr - sizeof(GCHeader));
Assert.AreEqual(1u, newObjHeaderPtr->RefCount, "Ref count not set to 1!");
Kernel.FOS_System.GC._DecrementRefCount(newObjPtr);
Assert.AreEqual(0u, newObjHeaderPtr->RefCount, "Ref count not decremented!");
Assert.AreEqual(startNumObjs, Kernel.FOS_System.GC.NumObjs, "Num objs not decremented!");
Assert.AreEqual(minUsedBlocks, Heap.FBlock->used, "Memory not free'd after ref count hit 0!");
}
public void NewObj_Test()
{
int startNumObjs = Kernel.FOS_System.GC.NumObjs;
Kernel.FOS_System.Type newObjType = new TestType();
byte* newObjPtr = (byte*)Kernel.FOS_System.GC.NewObj(newObjType);
GCHeader* newObjHeaderPtr = (GCHeader*)(newObjPtr - sizeof(GCHeader));
Assert.IsTrue(Kernel.FOS_System.GC.CheckSignature(newObjHeaderPtr), "Signature not set properly!");
Assert.AreEqual(1u, newObjHeaderPtr->RefCount, "Ref count not set to 1!");
Assert.AreEqual(startNumObjs + 1, Kernel.FOS_System.GC.NumObjs, "NumObjs not set correctly!");
for (int i = 0; i < newObjType.Size; i++)
{
Assert.AreEqual(0u, newObjPtr[i], "Memory not initialised to 0 properly!");
}
}
public void IncrementRefCount_Test()
{
Kernel.FOS_System.Type newObjType = new TestType();
byte* newObjPtr = (byte*)Kernel.FOS_System.GC.NewObj(newObjType);
GCHeader* newObjHeaderPtr = (GCHeader*)(newObjPtr - sizeof(GCHeader));
Assert.AreEqual(1u, newObjHeaderPtr->RefCount, "Ref count not set to 1!");
Kernel.FOS_System.GC._IncrementRefCount(newObjPtr);
Assert.AreEqual(2u, newObjHeaderPtr->RefCount, "Ref count not incremented!");
}