internal unsafe override void Visit(UIntPtr *loc)
{
UIntPtr addr = *loc;
// Ignore pointers out of our memory area
if (PageTable.IsForeignAddr(addr))
{
return;
}
UIntPtr page = PageTable.Page(addr);
PageType pageType = PageTable.Type(page);
if (!PageTable.IsGcPage(pageType))
{
VTable.Assert((PageTable.IsNonGcPage(pageType) &&
PageTable.IsMyPage(page)) ||
PageTable.IsStackPage(pageType));
return;
}
VTable.Assert(PageTable.IsMyPage(page));
Object obj = Magic.fromAddress(addr);
VTable.Assert(IsPossiblyObject(obj), "Bad object/vtable");
if (obj.GcMark((UIntPtr)1))
{
// We changed the color of the object, so we
// have to mark the objects reachable from the fields
workList.Write(addr);
}
}
internal unsafe override void Visit(UIntPtr *loc)
{
UIntPtr addr = *loc;
// Ignore pointers out of our memory area
if (PageTable.IsForeignAddr(addr))
{
return;
}
UIntPtr page = PageTable.Page(addr);
if (!PageTable.IsMyGcPage(page))
{
PageType pageType = PageTable.Type(page);
#if SINGULARITY_PROCESS
// We have to allow reference pointers to the
// ThreadContext, which lives in the kernel space.
VTable.Assert((PageTable.IsNonGcPage(pageType) &&
PageTable.IsMyPage(page)) ||
PageTable.IsStackPage(pageType) ||
PageTable.IsSharedPage(pageType) ||
(PageTable.IsGcPage(pageType) &&
PageTable.IsKernelPage(page)));
#else
VTable.Assert((PageTable.IsNonGcPage(pageType) &&
PageTable.IsMyPage(page)) ||
PageTable.IsStackPage(pageType) ||
PageTable.IsSharedPage(pageType));
#endif
return;
}
UIntPtr objectAddr = SegregatedFreeList.Find(addr);
markAndProcessReferenceVisitor.Visit(&objectAddr);
}
internal unsafe override void Visit(UIntPtr *loc)
{
UIntPtr addr = *loc;
// Ignore pointers out of our memory area
if (PageTable.IsForeignAddr(addr))
{
return;
}
UIntPtr page = PageTable.Page(addr);
PageType pageType = PageTable.Type(page);
if (!PageTable.IsGcPage(pageType))
{
VTable.Assert((PageTable.IsNonGcPage(pageType) &&
PageTable.IsMyPage(page)) ||
PageTable.IsStackPage(pageType));
return;
}
VTable.Assert(PageTable.IsMyPage(page));
Object obj = Magic.fromAddress(addr);
VTable.Assert(IsPossiblyObject(obj), "Bad Object/VTable");
if (obj.GcMark() == UIntPtr.Zero)
{
// The object was not live
*loc = UIntPtr.Zero;
}
}
internal unsafe override void Visit(UIntPtr *loc)
{
UIntPtr addr = *loc;
// Ignore pointers out of our memory area
if (PageTable.IsForeignAddr(addr))
{
return;
}
UIntPtr page = PageTable.Page(addr);
PageType pageType = PageTable.Type(page);
if (PageTable.IsGcPage(pageType))
{
Object obj = Magic.fromAddress(addr);
VTable.Assert(obj.GcMark() != UIntPtr.Zero);
VTable.Assert(PageTable.IsMyPage(page));
}
}