1/*
2 * Copyright (c) 2011 Apple Inc. All rights reserved.
3 *
4 * @APPLE_APACHE_LICENSE_HEADER_START@
5 *
6 * Licensed under the Apache License, Version 2.0 (the "License");
7 * you may not use this file except in compliance with the License.
8 * You may obtain a copy of the License at
9 *
10 *     http://www.apache.org/licenses/LICENSE-2.0
11 *
12 * Unless required by applicable law or agreed to in writing, software
13 * distributed under the License is distributed on an "AS IS" BASIS,
14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15 * See the License for the specific language governing permissions and
16 * limitations under the License.
17 *
18 * @APPLE_APACHE_LICENSE_HEADER_END@
19 */
20/*
21    auto_trace.d
22    DTrace support.
23    Copyright (c) 2006-2011 Apple Inc. All rights reserved.
24 */
25
26// First define malloc_zone_t's
27//#include <malloc/malloc.h> // don't include directly <rdar://problem/7823490>
28struct _malloc_zone_t;
29typedef struct _malloc_zone_t malloc_zone_t;
30
31// Don't actually let "auto_zone.h" be included becuase it would bring in <sys/types>;
32// An auto_zone_t is typedef'd to a malloc_zone_t anyways.
33#define	__AUTO_ZONE__
34#define auto_zone_t malloc_zone_t
35
36// Include the collection_phase_t flags
37//#include <stdint.h>
38//#include "auto_trace.h"
39
40typedef enum {
41    AUTO_TRACE_SCANNING_PHASE = 0,
42    AUTO_TRACE_WEAK_REFERENCE_PHASE,
43    AUTO_TRACE_FINALIZING_PHASE,
44    AUTO_TRACE_SCAVENGING_PHASE
45} auto_collection_phase_t;
46
47typedef enum {
48	AUTO_TRACE_FULL = 0,
49	AUTO_TRACE_GENERATIONAL = 1,
50	AUTO_TRACE_LOCAL = 2
51} auto_collection_type_t;
52
53provider garbage_collection {
54	probe collection_begin(auto_zone_t *zone, auto_collection_type_t collection_type);
55	probe collection_end(auto_zone_t *zone, uint64_t objects_reclaimed, uint64_t bytes_reclaimed, uint64_t total_objects_in_use, uint64_t total_bytes_in_use);
56
57	probe collection_phase_begin(auto_zone_t *zone, auto_collection_phase_t phase);
58	probe collection_phase_end(auto_zone_t *zone, auto_collection_phase_t phase, uint64_t number_affected, uint64_t bytes_affected);
59    probe auto_refcount_one_allocation(uint64_t size);
60    probe auto_block_lost_thread_locality(void *block, uint64_t size);
61};
62