mono/sgen/sgen-memory-governor.h

   1 /**
   2  * \file
   3  * Copyright 2001-2003 Ximian, Inc
   4  * Copyright 2003-2010 Novell, Inc.
   5  *
   6  * Licensed under the MIT license. See LICENSE file in the project root for full license information.
   7  */
   8 #ifndef __MONO_SGEN_MEMORY_GOVERNOR_H__
   9 #define __MONO_SGEN_MEMORY_GOVERNOR_H__
  10
  11 /* Heap limits */
  12 void sgen_memgov_init (size_t max_heap, size_t soft_limit, gboolean debug_allowance, double min_allowance_ratio, double save_target);
  13 void sgen_memgov_release_space (mword size, int space);
  14 gboolean sgen_memgov_try_alloc_space (mword size, int space);
  15
  16 /* GC trigger heuristics */
  17 void sgen_memgov_minor_collection_start (void);
  18 void sgen_memgov_minor_collection_end (const char *reason, gboolean is_overflow);
  19
  20 void sgen_memgov_major_pre_sweep (void);
  21 void sgen_memgov_major_post_sweep (mword used_slots_size);
  22 void sgen_memgov_major_collection_start (gboolean concurrent, const char *reason);
  23 void sgen_memgov_major_collection_end (gboolean forced, gboolean concurrent, const char *reason, gboolean is_overflow);
  24
  25 void sgen_memgov_collection_start (int generation);
  26 void sgen_memgov_collection_end (int generation, gint64 stw);
  27
  28 gboolean sgen_need_major_collection (mword space_needed, gboolean *forced);
  29
  30
  31 typedef enum {
  32         SGEN_ALLOC_INTERNAL = 0,
  33         SGEN_ALLOC_HEAP = 1,
  34         SGEN_ALLOC_ACTIVATE = 2
  35 } SgenAllocFlags;
  36
  37 typedef enum {
  38         SGEN_LOG_NURSERY,
  39         SGEN_LOG_MAJOR_SERIAL,
  40         SGEN_LOG_MAJOR_CONC_START,
  41         SGEN_LOG_MAJOR_CONC_FINISH,
  42         SGEN_LOG_MAJOR_SWEEP_FINISH
  43 } SgenLogType;
  44
  45 typedef struct {
  46         SgenLogType type;
  47         const char *reason;
  48         gboolean is_overflow;
  49         gint64 time;
  50         mword promoted_size;
  51         mword major_size;
  52         mword major_size_in_use;
  53         mword los_size;
  54         mword los_size_in_use;
  55 } SgenLogEntry;
  56
  57 /* OS memory allocation */
  58 void* sgen_alloc_os_memory (size_t size, SgenAllocFlags flags, const char *assert_description, MonoMemAccountType type);
  59 void* sgen_alloc_os_memory_aligned (size_t size, mword alignment, SgenAllocFlags flags, const char *assert_description, MonoMemAccountType type);
  60 void sgen_free_os_memory (void *addr, size_t size, SgenAllocFlags flags, MonoMemAccountType type);
  61
  62 /* Error handling */
  63 void sgen_assert_memory_alloc (void *ptr, size_t requested_size, const char *assert_description);
  64
  65 #endif
  66