-/* -----------------------------------------------------------------------------
- * Utilities for handling root pointers.
- * -------------------------------------------------------------------------- */
-
-
-#define INIT_RPT_SIZE 64
-
-STATIC_INLINE void
-initFreeList(rootEntry *table, nat n, rootEntry *free)
-{
- rootEntry *p;
-
- for (p = table + n - 1; p >= table; p--) {
- p->addr = (P_)free;
- free = p;
- }
- root_ptr_free = table;
-}
-
-static void
-initRootPtrTable(void)
-{
- if (RPT_size > 0)
- return;
-
- RPT_size = INIT_RPT_SIZE;
- root_ptr_table = stgMallocBytes(RPT_size * sizeof(rootEntry),
- "initRootPtrTable");
-
- initFreeList(root_ptr_table,INIT_RPT_SIZE,NULL);
-}
-
-
-static void
-enlargeRootPtrTable(void)
-{
- nat old_RPT_size = RPT_size;
-
- // 2nd and subsequent times
- RPT_size *= 2;
- root_ptr_table =
- stgReallocBytes(root_ptr_table,
- RPT_size * sizeof(rootEntry),
- "enlargeRootPtrTable");
-
- initFreeList(root_ptr_table + old_RPT_size, old_RPT_size, NULL);
-}
-
-static void
-addRootObject(void *addr)
-{
- StgWord rt;
- initRootPtrTable();
- if (root_ptr_free == NULL) {
- enlargeRootPtrTable();
- }
-
- rt = root_ptr_free - root_ptr_table;
- root_ptr_free = (rootEntry*)(root_ptr_free->addr);
- root_ptr_table[rt].addr = addr;
-}
-
-/* -----------------------------------------------------------------------------
- * Treat root pointers as roots for the garbage collector.
- * -------------------------------------------------------------------------- */
-
-void
-markRootPtrTable(evac_fn evac)
-{
- rootEntry *p, *end_root_ptr_table;
- StgPtr q;
-
- end_root_ptr_table = &root_ptr_table[RPT_size];
-
- for (p = root_ptr_table; p < end_root_ptr_table; p++) {
- q = p->addr;
-
- if (q && (q < (P_)root_ptr_table || q >= (P_)end_root_ptr_table)) {
- evac((StgClosure **)p->addr);
- }
- }
-}
-
-/* -----------------------------------------------------------------------------
- * End of utilities for handling root pointers.
- * -------------------------------------------------------------------------- */
-