mono/sgen/sgen-pinning.h

   1 /*
   2  * sgen-pinning.h: All about pinning objects.
   3  *
   4  * Copyright 2011 Xamarin Inc (http://www.xamarin.com)
   5  * Copyright (C) 2012 Xamarin Inc
   6  *
   7  * Licensed under the MIT license. See LICENSE file in the project root for full license information.
   8  */
   9 #ifndef __MONO_SGEN_PINNING_H__
  10 #define __MONO_SGEN_PINNING_H__
  11
  12 #include "mono/sgen/sgen-pointer-queue.h"
  13
  14 enum {
  15         PIN_TYPE_STACK,
  16         PIN_TYPE_STATIC_DATA,
  17         PIN_TYPE_OTHER,
  18         PIN_TYPE_MAX
  19 };
  20
  21 void sgen_pinning_init (void);
  22 void sgen_pin_stage_ptr (void *ptr);
  23 void sgen_optimize_pin_queue (void);
  24 void sgen_init_pinning (void);
  25 void sgen_finish_pinning (void);
  26 void sgen_pinning_register_pinned_in_nursery (GCObject *obj);
  27 void sgen_scan_pin_queue_objects (ScanCopyContext ctx);
  28 void sgen_pin_queue_clear_discarded_entries (GCMemSection *section, size_t max_pin_slot);
  29 size_t sgen_get_pinned_count (void);
  30 void sgen_pinning_setup_section (GCMemSection *section);
  31 void sgen_pinning_trim_queue_to_section (GCMemSection *section);
  32
  33 void sgen_dump_pin_queue (void);
  34
  35 gboolean sgen_find_optimized_pin_queue_area (void *start, void *end, size_t *first_out, size_t *last_out);
  36 void sgen_find_section_pin_queue_start_end (GCMemSection *section);
  37 void** sgen_pinning_get_entry (size_t index);
  38 void sgen_pin_objects_in_section (GCMemSection *section, ScanCopyContext ctx);
  39
  40 /* Pinning stats */
  41
  42 void sgen_pin_stats_register_address (char *addr, int pin_type);
  43 size_t sgen_pin_stats_get_pinned_byte_count (int pin_type);
  44 SgenPointerQueue *sgen_pin_stats_get_object_list (void);
  45 void sgen_pin_stats_reset (void);
  46
  47 /* Perpetual pinning, aka cementing */
  48
  49 void sgen_cement_init (gboolean enabled);
  50 void sgen_cement_reset (void);
  51 void sgen_cement_force_pinned (void);
  52 gboolean sgen_cement_is_forced (GCObject *obj);
  53 gboolean sgen_cement_lookup (GCObject *obj);
  54 gboolean sgen_cement_lookup_or_register (GCObject *obj);
  55 void sgen_pin_cemented_objects (void);
  56 void sgen_cement_clear_below_threshold (void);
  57
  58 #endif