void gc_collect_root(void **ptrs, machine_uint_t len) {
for (machine_uint_t i = 0; i < len; i++) {
machine_uint_t ptr = (machine_uint_t)ptrs[i];
VERIFY_MARK_AND_PUSH(ptr);
gc_drain_stack();
}
}
void gc_collect_root(void **ptrs, size_t len) {
for (size_t i = 0; i < len; i++) {
void *ptr = ptrs[i];
VERIFY_MARK_AND_PUSH(ptr);
gc_drain_stack();
}
}
STATIC void gc_drain_stack(void) {
while (gc_sp > gc_stack) {
// pop the next block off the stack
machine_uint_t block = *--gc_sp;
// work out number of consecutive blocks in the chain starting with this one
machine_uint_t n_blocks = 0;
do {
n_blocks += 1;
} while (ATB_GET_KIND(block + n_blocks) == AT_TAIL);
// check this block's children
machine_uint_t *scan = (machine_uint_t*)PTR_FROM_BLOCK(block);
for (machine_uint_t i = n_blocks * WORDS_PER_BLOCK; i > 0; i--, scan++) {
machine_uint_t ptr2 = *scan;
VERIFY_MARK_AND_PUSH(ptr2);
}
}
}
STATIC void gc_drain_stack(void) {
while (MP_STATE_MEM(gc_sp) > MP_STATE_MEM(gc_stack)) {
// pop the next block off the stack
size_t block = *--MP_STATE_MEM(gc_sp);
// work out number of consecutive blocks in the chain starting with this one
size_t n_blocks = 0;
do {
n_blocks += 1;
} while (ATB_GET_KIND(block + n_blocks) == AT_TAIL);
// check this block's children
void **ptrs = (void**)PTR_FROM_BLOCK(block);
for (size_t i = n_blocks * BYTES_PER_BLOCK / sizeof(void*); i > 0; i--, ptrs++) {
void *ptr = *ptrs;
VERIFY_MARK_AND_PUSH(ptr);
}
}
}
