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xo-ordinaltree: expand unittest + debug logging

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This commit is contained in:
Roland Conybeare 2025-12-05 18:38:29 -05:00
commit 3d06980b42
10 changed files with 298 additions and 71 deletions
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14
xo-alloc/src/alloc/Object.cpp
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@ -42,18 +42,24 @@ namespace xo {
Object::_forward(IObject * src,
gc::IAlloc * gc)
{
scope log(XO_DEBUG(gc->debug_flag()), xtag("src", src));
if (!src)
return src;
if (src->_is_forwarded())
if (src->_is_forwarded()) {
log && log("already forwarded", xtag("dest", src->_offset_destination(src)));
return src->_offset_destination(src);
}
if (gc->check_move(src)) {
log && log("needs forwarding");
Object::_shallow_move(src, gc);
/* *src is now a forwarding pointer to a copy in to-space */
return src->_offset_destination(src);
} else {
log && log("already tenured + incr collection");
/* don't move tenured objects during incremental collection */
return src;
}
@ -62,6 +68,8 @@ namespace xo {
IObject *
Object::_deep_move(IObject * from_src, gc::GC * gc, gc::ObjectStatistics * /*stats*/)
{
scope log(XO_DEBUG(gc->config().debug_flag_));
using gc::generation;
if (!from_src)
@ -146,13 +154,15 @@ namespace xo {
do {
fixup_work = 0;
auto fixup_generation = [gc, &gray_lo_v](generation gen) {
auto fixup_generation = [gc, &log, &gray_lo_v](generation gen) {
std::size_t work = 0;
while(gray_lo_v[gen2int(gen)] < gc->free_ptr(gen)) {
Object * x = reinterpret_cast<Object *>(gray_lo_v[gen2int(gen)]);
// update per-class stats here
log && log("fwd children", xtag("x", x));
std::size_t xz = x->_forward_children(gc);
// must pad xz to multiple of word size,