mono/metadata/class-internals.h

   1 #ifndef __MONO_METADATA_CLASS_INTERBALS_H__
   2 #define __MONO_METADATA_CLASS_INTERBALS_H__
   3
   4 #include <mono/metadata/class.h>
   5 #include <mono/io-layer/io-layer.h>
   6
   7 #define MONO_CLASS_IS_ARRAY(c) ((c)->rank)
   8
   9 #define MONO_DEFAULT_SUPERTABLE_SIZE 6
  10
  11 extern gboolean mono_print_vtable;
  12
  13 typedef void     (*MonoStackWalkImpl) (MonoStackWalk func, gboolean do_il_offset, gpointer user_data);
  14
  15 typedef struct _MonoMethodNormal MonoMethodNormal;
  16 typedef struct _MonoMethodWrapper MonoMethodWrapper;
  17 typedef struct _MonoMethodInflated MonoMethodInflated;
  18 typedef struct _MonoMethodPInvoke MonoMethodPInvoke;
  19
  20 typedef enum {
  21         MONO_WRAPPER_NONE,
  22         MONO_WRAPPER_DELEGATE_INVOKE,
  23         MONO_WRAPPER_DELEGATE_BEGIN_INVOKE,
  24         MONO_WRAPPER_DELEGATE_END_INVOKE,
  25         MONO_WRAPPER_RUNTIME_INVOKE,
  26         MONO_WRAPPER_NATIVE_TO_MANAGED,
  27         MONO_WRAPPER_MANAGED_TO_NATIVE,
  28         MONO_WRAPPER_REMOTING_INVOKE,
  29         MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK,
  30         MONO_WRAPPER_XDOMAIN_INVOKE,
  31         MONO_WRAPPER_XDOMAIN_DISPATCH,
  32         MONO_WRAPPER_LDFLD,
  33         MONO_WRAPPER_STFLD,
  34         MONO_WRAPPER_SYNCHRONIZED,
  35         MONO_WRAPPER_DYNAMIC_METHOD,
  36         MONO_WRAPPER_ISINST,
  37         MONO_WRAPPER_CASTCLASS,
  38         MONO_WRAPPER_PROXY_ISINST,
  39         MONO_WRAPPER_STELEMREF,
  40         MONO_WRAPPER_UNBOX,
  41         MONO_WRAPPER_UNKNOWN
  42 } MonoWrapperType;
  43
  44 typedef enum {
  45         MONO_REMOTING_TARGET_UNKNOWN,
  46         MONO_REMOTING_TARGET_APPDOMAIN
  47 } MonoRemotingTarget;
  48
  49 struct _MonoMethod {
  50         guint16 flags;  /* method flags */
  51         guint16 iflags; /* method implementation flags */
  52         guint32 token;
  53         MonoClass *klass;
  54         MonoMethodSignature *signature;
  55         gpointer info; /* runtime info */
  56         /* name is useful mostly for debugging */
  57         const char *name;
  58         /* this is used by the inlining algorithm */
  59         unsigned int inline_info:1;
  60         unsigned int uses_this:1;
  61         unsigned int wrapper_type:5;
  62         unsigned int string_ctor:1;
  63         unsigned int save_lmf:1;
  64         unsigned int dynamic:1; /* created & destroyed during runtime */
  65         unsigned int is_inflated:1;
  66         signed int slot : 21;
  67 };
  68
  69 struct _MonoMethodNormal {
  70         MonoMethod method;
  71         MonoGenericContainer *generic_container;
  72         MonoMethodHeader *header;
  73 };
  74
  75 struct _MonoMethodWrapper {
  76         MonoMethodNormal method;
  77         void *method_data;
  78 };
  79
  80 struct _MonoMethodInflated {
  81         MonoMethodNormal nmethod;
  82         MonoGenericContext *context;
  83         MonoMethod *declaring;
  84         MonoMethodInflated *inflated;
  85 };
  86
  87 struct _MonoMethodPInvoke {
  88         MonoMethod method;
  89         gpointer addr;
  90         /* add marshal info */
  91         guint16 piflags;  /* pinvoke flags */
  92         guint16 implmap_idx;  /* index into IMPLMAP */
  93 };
  94
  95 typedef struct {
  96         MonoType *generic_type;
  97         gpointer reflection_info;
  98 } MonoInflatedField;
  99
 100 /*
 101  * MonoClassField is just a runtime representation of the metadata for
 102  * field, it doesn't contain the data directly.  Static fields are
 103  * stored in MonoVTable->data.  Instance fields are allocated in the
 104  * objects after the object header.
 105  */
 106 struct _MonoClassField {
 107         /* Type of the field */
 108         MonoType        *type;
 109
 110         /* If this is an instantiated generic type, this is the
 111          * "original" type, ie. the MONO_TYPE_VAR or MONO_TYPE_GENERICINST
 112          * it was instantiated from.
 113          */
 114         MonoInflatedField  *generic_info;
 115
 116         /*
 117          * Offset where this field is stored; if it is an instance
 118          * field, it's the offset from the start of the object, if
 119          * it's static, it's from the start of the memory chunk
 120          * allocated for statics for the class.
 121          */
 122         int              offset;
 123
 124         const char      *name;
 125
 126         /*
 127          * If the field is constant, pointer to the metadata constant
 128          * value.
 129          * If the field has an RVA flag, pointer to the data.
 130          * Else, invalid.
 131          */
 132         const char      *data;
 133
 134         /* Type where the field was defined */
 135         MonoClass       *parent;
 136
 137         /*
 138          * If the field is constant, the type of the constant.
 139          */
 140         MonoTypeEnum     def_type;
 141 };
 142
 143 /* a field is ignored if it's named "_Deleted" and it has the specialname and rtspecialname flags set */
 144 #define mono_field_is_deleted(field) ((field)->name[0] == '_' && ((field)->type->attrs & 0x600) && (strcmp ((field)->name, "_Deleted") == 0))
 145
 146 typedef struct {
 147         MonoClassField *field;
 148         guint32 offset;
 149         MonoMarshalSpec *mspec;
 150 } MonoMarshalField;
 151
 152 typedef struct {
 153         guint32 native_size;
 154         guint32 num_fields;
 155         MonoMethod *ptr_to_str;
 156         MonoMethod *str_to_ptr;
 157         MonoMarshalField fields [MONO_ZERO_LEN_ARRAY];
 158 } MonoMarshalType;
 159
 160 struct _MonoProperty {
 161         MonoClass *parent;
 162         const char *name;
 163         MonoMethod *get;
 164         MonoMethod *set;
 165         guint32 attrs;
 166 };
 167
 168 struct _MonoEvent {
 169         MonoClass *parent;
 170         const char *name;
 171         MonoMethod *add;
 172         MonoMethod *remove;
 173         MonoMethod *raise;
 174         MonoMethod **other;
 175         guint32 attrs;
 176 };
 177
 178 struct _MonoClass {
 179         MonoImage *image;
 180
 181         /* The underlying type of the enum */
 182         MonoType *enum_basetype;
 183         /* element class for arrays and enum */
 184         MonoClass *element_class;
 185         /* used for subtype checks */
 186         MonoClass *cast_class;
 187         /* array dimension */
 188         guint8     rank;
 189
 190         guint inited          : 1;
 191         /* We use init_pending to detect cyclic calls to mono_class_init */
 192         guint init_pending    : 1;
 193
 194         /* A class contains static and non static data. Static data can be
 195          * of the same type as the class itselfs, but it does not influence
 196          * the instance size of the class. To avoid cyclic calls to
 197          * mono_class_init (from mono_class_instance_size ()) we first
 198          * initialise all non static fields. After that we set size_inited
 199          * to 1, because we know the instance size now. After that we
 200          * initialise all static fields.
 201          */
 202         guint size_inited     : 1;
 203         guint valuetype       : 1; /* derives from System.ValueType */
 204         guint enumtype        : 1; /* derives from System.Enum */
 205         guint blittable       : 1; /* class is blittable */
 206         guint unicode         : 1; /* class uses unicode char when marshalled */
 207         guint wastypebuilder  : 1; /* class was created at runtime from a TypeBuilder */
 208         /* next byte */
 209         guint min_align       : 4;
 210         guint packing_size    : 4;
 211         /* next byte */
 212         guint ghcimpl         : 1; /* class has its own GetHashCode impl */
 213         guint has_finalize    : 1; /* class has its own Finalize impl */
 214         guint marshalbyref    : 1; /* class is a MarshalByRefObject */
 215         guint contextbound    : 1; /* class is a ContextBoundObject */
 216         guint delegate        : 1; /* class is a Delegate */
 217         guint gc_descr_inited : 1; /* gc_descr is initialized */
 218         guint dummy           : 1; /* temporary hack */
 219         guint32 declsec_flags;     /* declarative security attributes flags */
 220
 221         MonoClass  *parent;
 222         MonoClass  *nested_in;
 223         GList      *nested_classes;
 224
 225         guint32    type_token;
 226         const char *name;
 227         const char *name_space;
 228
 229         /* for fast subtype checks */
 230         MonoClass **supertypes;
 231         guint16     idepth;
 232
 233         guint16     interface_count;
 234         guint16     interface_id;        /* unique inderface id (for interfaces) */
 235         guint16     max_interface_id;
 236         gint       *interface_offsets;
 237         MonoClass **interfaces;
 238
 239         /*
 240          * Computed object instance size, total.
 241          */
 242         int        instance_size;
 243         int        class_size;
 244         int        vtable_size; /* number of slots */
 245
 246         /*
 247          * From the TypeDef table
 248          */
 249         guint32    flags;
 250         struct {
 251                 guint32 first, last;
 252                 int count;
 253         } field, method, property, event;
 254
 255         /* loaded on demand */
 256         MonoMarshalType *marshal_info;
 257
 258         /*
 259          * Field information: Type and location from object base
 260          */
 261         MonoClassField *fields;
 262
 263         MonoProperty *properties;
 264
 265         MonoEvent *events;
 266
 267         MonoMethod **methods;
 268
 269         /* used as the type of the this argument and when passing the arg by value */
 270         MonoType this_arg;
 271         MonoType byval_arg;
 272
 273         MonoGenericClass *generic_class;
 274         MonoGenericContainer *generic_container;
 275
 276         void *reflection_info;
 277
 278         void *gc_descr;
 279         guint64 gc_bitmap;
 280
 281         MonoVTable *cached_vtable;
 282         MonoMethod **vtable;
 283 };
 284
 285 struct MonoVTable {
 286         MonoClass  *klass;
 287     /*
 288          * According to comments in gc_gcj.h, this should be the second word in
 289          * the vtable.
 290          */
 291         void *gc_descr;
 292         MonoDomain *domain;  /* each object/vtable belongs to exactly one domain */
 293         gpointer   *interface_offsets;
 294         gpointer    data; /* to store static class data */
 295         gpointer    type; /* System.Type type for klass */
 296         guint16     max_interface_id;
 297         guint8      rank;
 298         guint remote          : 1; /* class is remotely activated */
 299         guint initialized     : 1; /* cctor has been run */
 300         /* do not add any fields after vtable, the structure is dynamically extended */
 301         gpointer    vtable [MONO_ZERO_LEN_ARRAY];
 302 };
 303
 304 /*
 305  * Generic instantiation data type encoding.
 306  */
 307 struct _MonoGenericInst {
 308         guint id;
 309         guint type_argc    : 22;
 310         guint is_open      :  1;
 311         guint is_reference :  1;
 312         MonoType **type_argv;
 313 };
 314
 315 struct _MonoGenericClass {
 316         MonoGenericInst *inst;
 317         MonoClass *container_class;
 318         MonoGenericContext *context;
 319         MonoClass *klass;
 320         MonoType *parent;
 321         guint count_ifaces  : 29;
 322         guint is_dynamic    :  1;
 323         MonoType **ifaces;
 324 };
 325
 326 struct _MonoDynamicGenericClass {
 327         MonoGenericClass generic_class;
 328         int count_methods;
 329         MonoMethod **methods;
 330         int count_ctors;
 331         MonoMethod **ctors;
 332         int count_fields;
 333         MonoClassField *fields;
 334         int count_properties;
 335         MonoProperty *properties;
 336         int count_events;
 337         MonoEvent *events;
 338         guint initialized;
 339 };
 340
 341 struct _MonoGenericMethod {
 342         MonoGenericInst *inst;
 343         MonoGenericContainer *container;
 344         gpointer reflection_info;
 345 };
 346
 347 struct _MonoGenericContext {
 348         MonoGenericContainer *container;
 349         MonoGenericClass *gclass;
 350         MonoGenericMethod *gmethod;
 351 };
 352
 353 struct _MonoGenericContainer {
 354         MonoGenericContext context;
 355         MonoGenericContainer *parent;
 356         GHashTable *method_hash;
 357         MonoClass *klass;
 358         int type_argc    : 6;
 359         int is_method    : 1;
 360         int is_signature : 1;
 361         MonoGenericParam *type_params;
 362 };
 363
 364 struct _MonoGenericParam {
 365         MonoGenericContainer *owner;
 366         MonoClass *pklass;
 367         MonoMethod *method;
 368         const char *name;
 369         guint16 flags;
 370         guint16 num;
 371         MonoClass** constraints; /* NULL means end of list */
 372 };
 373
 374 typedef struct {
 375         const char *name;
 376         gconstpointer func;
 377         gconstpointer wrapper;
 378         MonoMethodSignature *sig;
 379 } MonoJitICallInfo;
 380
 381 #define mono_class_has_parent(klass,parent) (((klass)->idepth >= (parent)->idepth) && ((klass)->supertypes [(parent)->idepth - 1] == (parent)))
 382
 383 typedef struct {
 384         gulong new_object_count;
 385         gulong initialized_class_count;
 386         gulong used_class_count;
 387         gulong class_vtable_size;
 388         gulong class_static_data_size;
 389         gulong generic_instance_count;
 390         gulong generic_class_count;
 391         gulong inflated_method_count;
 392         gulong inflated_method_count_2;
 393         gulong inflated_type_count;
 394         gulong generics_metadata_size;
 395         gboolean enabled;
 396 } MonoStats;
 397
 398 extern MonoStats mono_stats;
 399
 400 typedef gpointer (*MonoTrampoline)       (MonoMethod *method);
 401 typedef gpointer (*MonoRemotingTrampoline)       (MonoMethod *method, MonoRemotingTarget target);
 402
 403 typedef gpointer (*MonoLookupDynamicToken) (MonoImage *image, guint32 token);
 404
 405 void
 406 mono_classes_init (void);
 407
 408 void
 409 mono_class_layout_fields   (MonoClass *klass);
 410
 411 void
 412 mono_class_setup_vtable    (MonoClass *klass, MonoMethod **overrides, int onum);
 413
 414 void
 415 mono_class_setup_mono_type (MonoClass *klass);
 416
 417 void
 418 mono_class_setup_parent    (MonoClass *klass, MonoClass *parent);
 419
 420 void
 421 mono_class_setup_supertypes (MonoClass *klass);
 422
 423 GPtrArray*
 424 mono_class_get_implemented_interfaces (MonoClass *klass);
 425
 426 gboolean
 427 mono_class_is_open_constructed_type (MonoType *t);
 428
 429 MonoMethod**
 430 mono_class_get_overrides   (MonoImage *image, guint32 type_token, gint32 *num_overrides);
 431
 432 gboolean
 433 mono_class_needs_cctor_run (MonoClass *klass, MonoMethod *caller);
 434
 435 void
 436 mono_install_trampoline (MonoTrampoline func);
 437
 438 void
 439 mono_install_remoting_trampoline (MonoRemotingTrampoline func);
 440
 441 gpointer
 442 mono_lookup_dynamic_token (MonoImage *image, guint32 token);
 443
 444 void
 445 mono_install_lookup_dynamic_token (MonoLookupDynamicToken func);
 446
 447 void
 448 mono_class_create_generic (MonoGenericClass *gclass);
 449
 450 typedef struct {
 451         MonoImage *corlib;
 452         MonoClass *object_class;
 453         MonoClass *byte_class;
 454         MonoClass *void_class;
 455         MonoClass *boolean_class;
 456         MonoClass *sbyte_class;
 457         MonoClass *int16_class;
 458         MonoClass *uint16_class;
 459         MonoClass *int32_class;
 460         MonoClass *uint32_class;
 461         MonoClass *int_class;
 462         MonoClass *uint_class;
 463         MonoClass *int64_class;
 464         MonoClass *uint64_class;
 465         MonoClass *single_class;
 466         MonoClass *double_class;
 467         MonoClass *char_class;
 468         MonoClass *string_class;
 469         MonoClass *enum_class;
 470         MonoClass *array_class;
 471         MonoClass *delegate_class;
 472         MonoClass *multicastdelegate_class;
 473         MonoClass *asyncresult_class;
 474         MonoClass *waithandle_class;
 475         MonoClass *typehandle_class;
 476         MonoClass *fieldhandle_class;
 477         MonoClass *methodhandle_class;
 478         MonoClass *monotype_class;
 479         MonoClass *exception_class;
 480         MonoClass *threadabortexception_class;
 481         MonoClass *thread_class;
 482         MonoClass *transparent_proxy_class;
 483         MonoClass *real_proxy_class;
 484         MonoClass *mono_method_message_class;
 485         MonoClass *appdomain_class;
 486         MonoClass *field_info_class;
 487         MonoClass *method_info_class;
 488         MonoClass *stringbuilder_class;
 489         MonoClass *math_class;
 490         MonoClass *stack_frame_class;
 491         MonoClass *stack_trace_class;
 492         MonoClass *marshal_class;
 493         MonoClass *iserializeable_class;
 494         MonoClass *serializationinfo_class;
 495         MonoClass *streamingcontext_class;
 496         MonoClass *typed_reference_class;
 497         MonoClass *argumenthandle_class;
 498         MonoClass *marshalbyrefobject_class;
 499         MonoClass *monitor_class;
 500         MonoClass *iremotingtypeinfo_class;
 501         MonoClass *runtimesecurityframe_class;
 502 } MonoDefaults;
 503
 504 extern MonoDefaults mono_defaults;
 505
 506 void
 507 mono_loader_init           (void);
 508
 509 void
 510 mono_loader_lock           (void);
 511
 512 void
 513 mono_loader_unlock         (void);
 514
 515 void
 516 mono_icall_init            (void);
 517
 518 void
 519 mono_icall_cleanup         (void);
 520
 521 gpointer
 522 mono_method_get_wrapper_data (MonoMethod *method, guint32 id);
 523
 524 void
 525 mono_install_stack_walk (MonoStackWalkImpl func);
 526
 527 MonoGenericContainer *mono_metadata_load_generic_params (MonoImage *image, guint32 token,
 528                                                          MonoGenericContainer *parent_container);
 529
 530 MonoMethodSignature*
 531 mono_create_icall_signature (const char *sigstr);
 532
 533 MonoJitICallInfo *
 534 mono_register_jit_icall (gconstpointer func, const char *name, MonoMethodSignature *sig, gboolean is_save);
 535
 536 void
 537 mono_register_jit_icall_wrapper (MonoJitICallInfo *info, gconstpointer wrapper);
 538
 539 MonoJitICallInfo *
 540 mono_find_jit_icall_by_name (const char *name);
 541
 542 MonoJitICallInfo *
 543 mono_find_jit_icall_by_addr (gconstpointer addr);
 544
 545 MonoMethodSignature*
 546 mono_class_inflate_generic_signature (MonoImage *image, MonoMethodSignature *sig, MonoGenericContext *context);
 547
 548 MonoGenericClass *
 549 mono_get_shared_generic_class (MonoGenericContainer *container, gboolean is_dynamic);
 550
 551 #endif /* __MONO_METADATA_CLASS_INTERBALS_H__ */
 552