/* Move all free space to the end of the code heap. Live blocks must be marked
on entry to this function. XTs in code blocks must be updated after this
function returns. */
void factor_vm::compact_code_heap(bool trace_contexts_p)
{
code->compact_heap();
forward_object_xts();
if(trace_contexts_p)
{
forward_context_xts();
forward_callback_xts();
}
}
/* Move all free space to the end of the code heap. This is not very efficient,
since it makes several passes over the code and data heaps, but we only ever
do this before saving a deployed image and exiting, so performaance is not
critical here */
void factor_vm::compact_code_heap()
{
/* Free all unreachable code blocks, don't trace contexts */
garbage_collection(data->tenured(),false,false,0);
/* Figure out where the code heap blocks are going to end up */
cell size = code->compute_heap_forwarding(forwarding);
/* Update word and quotation code pointers */
forward_object_xts();
/* Actually perform the compaction */
code->compact_heap(forwarding);
/* Update word and quotation XTs */
fixup_object_xts();
/* Now update the free list; there will be a single free block at
the end */
code->build_free_list(size);
}
/* Move all free space to the end of the code heap. This is not very efficient,
since it makes several passes over the code and data heaps, but we only ever
do this before saving a deployed image and exiting, so performaance is not
critical here */
void compact_code_heap(void)
{
/* Free all unreachable code blocks */
gc();
/* Figure out where the code heap blocks are going to end up */
CELL size = compute_heap_forwarding(&code_heap);
/* Update word and quotation code pointers */
forward_object_xts();
/* Actually perform the compaction */
compact_heap(&code_heap);
/* Update word and quotation XTs */
fixup_object_xts();
/* Now update the free list; there will be a single free block at
the end */
build_free_list(&code_heap,size);
}
