* Author: Paolo Molaro <lupus@ximian.com>
*
* (C) 2002 Ximian, Inc.
+ * Copyright 2012 Xamarin Inc (http://www.xamarin.com)
*/
#ifndef __MONO_METADATA_GC_INTERNAL_H__
#include <mono/metadata/threads-types.h>
#include <mono/utils/gc_wrapper.h>
+typedef struct {
+ int minor_gc_count;
+ int major_gc_count;
+ long long minor_gc_time_usecs;
+ long long major_gc_time_usecs;
+} GCStats;
+
#define mono_domain_finalizers_lock(domain) EnterCriticalSection (&(domain)->finalizable_objects_hash_lock);
#define mono_domain_finalizers_unlock(domain) LeaveCriticalSection (&(domain)->finalizable_objects_hash_lock);
+/* Register a memory area as a conservatively scanned GC root */
#define MONO_GC_REGISTER_ROOT(x) mono_gc_register_root ((char*)&(x), sizeof(x), NULL)
#define MONO_GC_UNREGISTER_ROOT(x) mono_gc_deregister_root ((char*)&(x))
+/*
+ * Register a memory location as a root pointing to memory allocated using
+ * mono_gc_alloc_fixed (). This includes MonoGHashTable.
+ */
+/* The result of alloc_fixed () is not GC tracked memory */
+#define MONO_GC_REGISTER_ROOT_FIXED(x) do { \
+ if (!mono_gc_is_moving ()) \
+ MONO_GC_REGISTER_ROOT ((x)); \
+ } while (0)
+
+/*
+ * Return a GC descriptor for an array containing N pointers to memory allocated
+ * by mono_gc_alloc_fixed ().
+ */
+/* For SGEN, the result of alloc_fixed () is not GC tracked memory */
+#define MONO_GC_ROOT_DESCR_FOR_FIXED(n) (mono_gc_is_moving () ? mono_gc_make_root_descr_all_refs (0) : NULL)
+
+/* Register a memory location holding a single object reference as a GC root */
+#define MONO_GC_REGISTER_ROOT_SINGLE(x) do { \
+ g_assert (sizeof (x) == sizeof (MonoObject*)); \
+ mono_gc_register_root ((char*)&(x), sizeof(MonoObject*), mono_gc_make_root_descr_all_refs (1)); \
+ } while (0)
+
+/*
+ * This is used for fields which point to objects which are kept alive by other references
+ * when using Boehm.
+ */
+#define MONO_GC_REGISTER_ROOT_IF_MOVING(x) do { \
+ if (mono_gc_is_moving ()) \
+ MONO_GC_REGISTER_ROOT_SINGLE(x); \
+} while (0)
+
+#define MONO_GC_UNREGISTER_ROOT_IF_MOVING(x) do { \
+ if (mono_gc_is_moving ()) \
+ MONO_GC_UNREGISTER_ROOT (x); \
+} while (0)
+
+/* useful until we keep track of gc-references in corlib etc. */
+#ifdef HAVE_SGEN_GC
+#define IS_GC_REFERENCE(t) FALSE
+#else
+#define IS_GC_REFERENCE(t) ((t)->type == MONO_TYPE_U && class->image == mono_defaults.corlib)
+#endif
+
+extern GCStats gc_stats MONO_INTERNAL;
+
void mono_object_register_finalizer (MonoObject *obj) MONO_INTERNAL;
void ves_icall_System_GC_InternalCollect (int generation) MONO_INTERNAL;
gint64 ves_icall_System_GC_GetTotalMemory (MonoBoolean forceCollection) MONO_INTERNAL;
extern gboolean mono_gc_is_finalizer_internal_thread (MonoInternalThread *thread) MONO_INTERNAL;
+extern void mono_gc_set_stack_end (void *stack_end) MONO_INTERNAL;
+
/* only valid after the RECLAIM_START GC event and before RECLAIM_END
* Not exported in public headers, but can be linked to (unsupported).
*/
/* simple interface for data structures needed in the runtime */
void* mono_gc_make_descr_from_bitmap (gsize *bitmap, int numbits) MONO_INTERNAL;
+/* Return a root descriptor for a root with all refs */
+void* mono_gc_make_root_descr_all_refs (int numbits) MONO_INTERNAL;
+
/* User defined marking function */
/* It should work like this:
* foreach (ref in GC references in the are structure pointed to by ADDR)
/* Create a descriptor with a user defined marking function */
void *mono_gc_make_root_descr_user (MonoGCRootMarkFunc marker);
+/* Return whenever user defined marking functions are supported */
+gboolean mono_gc_user_markers_supported (void) MONO_INTERNAL;
+
/* desc is the result from mono_gc_make_descr*. A NULL value means
* all the words might contain GC pointers.
* The memory is non-moving and it will be explicitly deallocated.
* size bytes will be available from the returned address (ie, descr
* must not be stored in the returned memory)
+ * NOTE: Under Boehm, this returns memory allocated using GC_malloc, so the result should
+ * be stored into a location registered using MONO_GC_REGISTER_ROOT_FIXED ().
*/
void* mono_gc_alloc_fixed (size_t size, void *descr) MONO_INTERNAL;
void mono_gc_free_fixed (void* addr) MONO_INTERNAL;
int mono_gc_finalizers_for_domain (MonoDomain *domain, MonoObject **out_array, int out_size) MONO_INTERNAL;
void mono_gc_run_finalize (void *obj, void *data) MONO_INTERNAL;
void mono_gc_clear_domain (MonoDomain * domain) MONO_INTERNAL;
+void* mono_gc_alloc_mature (MonoVTable *vtable) MONO_INTERNAL;
/*
* Register a root which can only be written using a write barrier.
* needed by the other functions.
*/
gpointer (*thread_attach_func) (void);
- /* FIXME: Add a cleanup function too */
+ /*
+ * Function called during thread deatch to free the data allocated by
+ * thread_attach_func.
+ */
+ void (*thread_detach_func) (gpointer user_data);
/*
* Function called from every thread when suspending for GC. It can save
* data needed for marking from thread stacks. user_data is the data returned
void* mono_gc_invoke_with_gc_lock (MonoGCLockedCallbackFunc func, void *data) MONO_INTERNAL;
-#ifdef HAVE_SGEN_GC
int mono_gc_get_los_limit (void) MONO_INTERNAL;
-guint8* mono_gc_get_card_table (int *shift_bits) MONO_INTERNAL;
-#endif
+guint8* mono_gc_get_card_table (int *shift_bits, gpointer *card_mask) MONO_INTERNAL;
+
+void* mono_gc_get_nursery (int *shift_bits, size_t *size) MONO_INTERNAL;
+
+void mono_gc_set_current_thread_appdomain (MonoDomain *domain) MONO_INTERNAL;
+
+void mono_gc_set_skip_thread (gboolean skip) MONO_INTERNAL;
/*
* Return whenever GC is disabled
pthread_t mono_gc_get_mach_exception_thread (void) MONO_INTERNAL;
#endif
+gboolean mono_gc_parse_environment_string_extract_number (const char *str, glong *out) MONO_INTERNAL;
+
+gboolean mono_gc_precise_stack_mark_enabled (void) MONO_INTERNAL;
+
+FILE *mono_gc_get_logfile (void) MONO_INTERNAL;
+
+typedef void (*mono_reference_queue_callback) (void *user_data);
+
+typedef struct _MonoReferenceQueue MonoReferenceQueue;
+typedef struct _RefQueueEntry RefQueueEntry;
+
+struct _RefQueueEntry {
+#ifdef HAVE_SGEN_GC
+ void *dis_link;
+#else
+ guint32 gchandle;
+#endif
+ void *user_data;
+ RefQueueEntry *next;
+};
+
+struct _MonoReferenceQueue {
+ RefQueueEntry *queue;
+ mono_reference_queue_callback callback;
+ MonoReferenceQueue *next;
+ gboolean should_be_deleted;
+};
+
+MonoReferenceQueue* mono_gc_reference_queue_new (mono_reference_queue_callback callback) MONO_INTERNAL;
+void mono_gc_reference_queue_free (MonoReferenceQueue *queue) MONO_INTERNAL;
+gboolean mono_gc_reference_queue_add (MonoReferenceQueue *queue, MonoObject *obj, void *user_data) MONO_INTERNAL;
+
+#ifdef HOST_WIN32
+BOOL APIENTRY mono_gc_dllmain (HMODULE module_handle, DWORD reason, LPVOID reserved) MONO_INTERNAL;
+#endif
+
+void mono_gc_bzero (void *dest, size_t size) MONO_INTERNAL;
+void mono_gc_memmove (void *dest, const void *src, size_t size) MONO_INTERNAL;
+
+guint mono_gc_get_vtable_bits (MonoClass *class) MONO_INTERNAL;
+
+void mono_gc_register_altstack (gpointer stack, gint32 stack_size, gpointer altstack, gint32 altstack_size) MONO_INTERNAL;
+
#endif /* __MONO_METADATA_GC_INTERNAL_H__ */
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