2 * sgen-client.h: SGen client interface.
4 * Copyright (C) 2014 Xamarin Inc
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Library General Public
8 * License 2.0 as published by the Free Software Foundation;
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Library General Public License for more details.
15 * You should have received a copy of the GNU Library General Public
16 * License 2.0 along with this library; if not, write to the Free
17 * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20 #include <metadata/sgen-pointer-queue.h>
22 void sgen_client_init_early (void);
23 void sgen_client_init (void);
25 mword sgen_client_slow_object_get_size (GCVTable *vtable, GCObject* o);
28 * Returns the vtable used for dummy objects to fill the nursery for ease and speed of
29 * walking. Must be a valid vtable that is not used by any actual objects. Must be
32 GCVTable* sgen_client_get_array_fill_vtable (void);
35 * Fill the given range with a dummy object. Its vtable must be the one returned by
36 * `sgen_client_get_array_fill_vtable()`. If the range is too short to be filled with an
37 * object, null it. Return `TRUE` if the range was filled with an object, `FALSE` if it was
40 gboolean sgen_client_array_fill_range (char *start, size_t size);
43 * This is called if the nursery clearing policy at `clear-at-gc`, which is usually only
44 * used for debugging. If `size` is large enough for the memory to have been filled with a
45 * dummy, object, zero its header. Note that there might not actually be a header there.
47 void sgen_client_zero_array_fill_header (void *p, size_t size);
49 gboolean sgen_client_object_is_array_fill (GCObject *o);
51 gboolean sgen_client_object_has_critical_finalizer (GCObject *obj);
54 * Called after an object is enqueued for finalization. This is a very low-level callback.
55 * It should almost certainly be a NOP.
57 * FIXME: Can we merge this with `sgen_client_object_has_critical_finalizer()`?
59 void sgen_client_object_queued_for_finalization (GCObject *obj);
61 void sgen_client_run_finalize (MonoObject *obj);
63 gboolean sgen_client_mark_ephemerons (ScanCopyContext ctx);
66 * Clear ephemeron pairs with unreachable keys.
67 * We pass the copy func so we can figure out if an array was promoted or not.
69 void sgen_client_clear_unreachable_ephemerons (ScanCopyContext ctx);
72 * This is called for objects that are larger than one card. If it's possible to scan only
73 * parts of the object based on which cards are marked, do so and return TRUE. Otherwise,
76 gboolean sgen_client_cardtable_scan_object (char *obj, mword block_obj_size, guint8 *cards, gboolean mod_union, ScanCopyContext ctx);
78 void sgen_client_nursery_objects_pinned (void **definitely_pinned, int count);
80 void sgen_client_collecting_minor (SgenPointerQueue *fin_ready_queue, SgenPointerQueue *critical_fin_queue);
81 void sgen_client_collecting_major_1 (void);
82 void sgen_client_pinned_los_object (char *obj);
83 void sgen_client_collecting_major_2 (void);
84 void sgen_client_collecting_major_3 (SgenPointerQueue *fin_ready_queue, SgenPointerQueue *critical_fin_queue);
86 void sgen_client_degraded_allocation (size_t size);
88 void sgen_client_total_allocated_heap (mword allocated_heap);
91 * If the client has registered any internal memory types, this must return a string
92 * describing the given type. Only used for debugging.
94 const char* sgen_client_description_for_internal_mem_type (int type);
96 /* FIXME: Use `sgen_client_vtable_get_name()` instead of this. */
97 const char* sgen_client_object_safe_name (GCObject *obj);
99 const char* sgen_client_vtable_get_namespace (GCVTable *vtable);
100 const char* sgen_client_vtable_get_name (GCVTable *vtable);
102 void sgen_client_pre_collection_checks (void);
104 void sgen_client_thread_register (SgenThreadInfo* info, void *stack_bottom_fallback);
105 void sgen_client_thread_unregister (SgenThreadInfo *p);
106 void sgen_client_thread_attach (SgenThreadInfo *info);
108 void sgen_client_scan_thread_data (void *start_nursery, void *end_nursery, gboolean precise, ScanCopyContext ctx);
110 int sgen_client_stop_world (int generation);
111 int sgen_client_restart_world (int generation, GGTimingInfo *timing);
113 void sgen_client_log_timing (GGTimingInfo *info, mword last_major_num_sections, mword last_los_memory_usage);
115 gboolean sgen_client_handle_gc_param (const char *opt);
116 void sgen_client_print_gc_params_usage (void);
118 gboolean sgen_client_handle_gc_debug (const char *opt);
119 void sgen_client_print_gc_debug_usage (void);
122 #define TYPE_LONGLONG long long
123 #define TYPE_SIZE size_t
124 #define TYPE_POINTER gpointer
125 #define TYPE_BOOL gboolean
127 #define BEGIN_PROTOCOL_ENTRY0(method) \
128 void sgen_client_ ## method (void);
129 #define BEGIN_PROTOCOL_ENTRY_HEAVY0(method) \
130 void sgen_client_ ## method (void);
131 #define BEGIN_PROTOCOL_ENTRY1(method,t1,f1) \
132 void sgen_client_ ## method (t1 f1);
133 #define BEGIN_PROTOCOL_ENTRY_HEAVY1(method,t1,f1) \
134 void sgen_client_ ## method (t1 f1);
135 #define BEGIN_PROTOCOL_ENTRY2(method,t1,f1,t2,f2) \
136 void sgen_client_ ## method (t1 f1, t2 f2);
137 #define BEGIN_PROTOCOL_ENTRY_HEAVY2(method,t1,f1,t2,f2) \
138 void sgen_client_ ## method (t1 f1, t2 f2);
139 #define BEGIN_PROTOCOL_ENTRY3(method,t1,f1,t2,f2,t3,f3) \
140 void sgen_client_ ## method (t1 f1, t2 f2, t3 f3);
141 #define BEGIN_PROTOCOL_ENTRY_HEAVY3(method,t1,f1,t2,f2,t3,f3) \
142 void sgen_client_ ## method (t1 f1, t2 f2, t3 f3);
143 #define BEGIN_PROTOCOL_ENTRY4(method,t1,f1,t2,f2,t3,f3,t4,f4) \
144 void sgen_client_ ## method (t1 f1, t2 f2, t3 f3, t4 f4);
145 #define BEGIN_PROTOCOL_ENTRY_HEAVY4(method,t1,f1,t2,f2,t3,f3,t4,f4) \
146 void sgen_client_ ## method (t1 f1, t2 f2, t3 f3, t4 f4);
147 #define BEGIN_PROTOCOL_ENTRY5(method,t1,f1,t2,f2,t3,f3,t4,f4,t5,f5) \
148 void sgen_client_ ## method (t1 f1, t2 f2, t3 f3, t4 f4, t5 f5);
149 #define BEGIN_PROTOCOL_ENTRY_HEAVY5(method,t1,f1,t2,f2,t3,f3,t4,f4,t5,f5) \
150 void sgen_client_ ## method (t1 f1, t2 f2, t3 f3, t4 f4, t5 f5);
151 #define BEGIN_PROTOCOL_ENTRY6(method,t1,f1,t2,f2,t3,f3,t4,f4,t5,f5,t6,f6) \
152 void sgen_client_ ## method (t1 f1, t2 f2, t3 f3, t4 f4, t5 f5, t6 f6);
153 #define BEGIN_PROTOCOL_ENTRY_HEAVY6(method,t1,f1,t2,f2,t3,f3,t4,f4,t5,f5,t6,f6) \
154 void sgen_client_ ## method (t1 f1, t2 f2, t3 f3, t4 f4, t5 f5, t6 f6);
158 #define DEFAULT_PRINT()
159 #define CUSTOM_PRINT(_)
161 #define IS_ALWAYS_MATCH(_)
162 #define MATCH_INDEX(_)
163 #define IS_VTABLE_MATCH(_)
165 #define END_PROTOCOL_ENTRY
166 #define END_PROTOCOL_ENTRY_HEAVY
168 #include "sgen-protocol-def.h"