diff options
Diffstat (limited to 'include/gc_mark.h')
| -rw-r--r-- | include/gc_mark.h | 16 |
1 files changed, 13 insertions, 3 deletions
diff --git a/include/gc_mark.h b/include/gc_mark.h index 508fb2cc..4c003c03 100644 --- a/include/gc_mark.h +++ b/include/gc_mark.h @@ -183,14 +183,24 @@ GC_API unsigned GC_CALL GC_new_kind_inner(void ** /* free_list */, GC_API unsigned GC_CALL GC_new_proc(GC_mark_proc); GC_API unsigned GC_CALL GC_new_proc_inner(GC_mark_proc); -/* Allocate an object of a given kind. Note that in multithreaded */ +/* Allocate an object of a given kind. By default, there are only */ +/* a few kinds: composite (pointer-free), atomic, uncollectable, etc. */ +/* We claim it is possible for clever client code that understands the */ +/* GC internals to add more, e.g. to communicate object layout */ +/* information to the collector. Note that in the multi-threaded */ /* contexts, this is usually unsafe for kinds that have the descriptor */ /* in the object itself, since there is otherwise a window in which */ /* the descriptor is not correct. Even in the single-threaded case, */ /* we need to be sure that cleared objects on a free list don't */ /* cause a GC crash if they are accidentally traced. */ -GC_API GC_ATTR_MALLOC void * GC_CALL - GC_generic_malloc(size_t /* lb */, int /* k */); +GC_API GC_ATTR_MALLOC void * GC_CALL GC_generic_malloc(size_t /* lb */, + int /* k */); + +GC_API GC_ATTR_MALLOC void * GC_CALL GC_generic_malloc_ignore_off_page( + size_t /* lb */, int /* k */); + /* As above, but pointers to past the */ + /* first page of the resulting object */ + /* are ignored. */ typedef void (GC_CALLBACK * GC_describe_type_fn)(void * /* p */, char * /* out_buf */); |