mono/metadata/domain-internals.h

   1 /*
   2  * Appdomain-related internal data structures and functions.
   3  */
   4 #ifndef __MONO_METADATA_DOMAIN_INTERNALS_H__
   5 #define __MONO_METADATA_DOMAIN_INTERNALS_H__
   6
   7 #include <mono/metadata/appdomain.h>
   8 #include <mono/utils/mono-codeman.h>
   9 #include <mono/utils/mono-hash.h>
  10 #include <mono/utils/mono-compiler.h>
  11 #include <mono/utils/mono-internal-hash.h>
  12 #include <mono/io-layer/io-layer.h>
  13
  14 extern CRITICAL_SECTION mono_delegate_section;
  15 extern CRITICAL_SECTION mono_strtod_mutex;
  16
  17 /*
  18  * If this is set, the memory belonging to appdomains is not freed when a domain is
  19  * unloaded, and assemblies loaded by the appdomain are not unloaded either. This
  20  * allows us to use typed gc in non-default appdomains too, leading to increased
  21  * performance.
  22  */
  23 extern gboolean mono_dont_free_domains;
  24
  25 /* This is a copy of System.AppDomainSetup */
  26 typedef struct {
  27         MonoObject object;
  28         MonoString *application_base;
  29         MonoString *application_name;
  30         MonoString *cache_path;
  31         MonoString *configuration_file;
  32         MonoString *dynamic_base;
  33         MonoString *license_file;
  34         MonoString *private_bin_path;
  35         MonoString *private_bin_path_probe;
  36         MonoString *shadow_copy_directories;
  37         MonoString *shadow_copy_files;
  38         MonoBoolean publisher_policy;
  39         MonoBoolean path_changed;
  40         int loader_optimization;
  41         MonoBoolean disallow_binding_redirects;
  42         MonoBoolean disallow_code_downloads;
  43         MonoObject *activation_arguments; /* it is System.Object in 1.x, ActivationArguments in 2.0 */
  44         MonoObject *domain_initializer;
  45         MonoArray *domain_initializer_args;
  46         MonoObject *application_trust; /* it is System.Object in 1.x, ApplicationTrust in 2.0 */
  47         MonoBoolean disallow_appbase_probe;
  48         MonoArray *configuration_bytes;
  49 } MonoAppDomainSetup;
  50
  51 typedef struct _MonoJitInfoTable MonoJitInfoTable;
  52 typedef struct _MonoJitInfoTableChunk MonoJitInfoTableChunk;
  53
  54 #define MONO_JIT_INFO_TABLE_CHUNK_SIZE          64
  55
  56 struct _MonoJitInfoTableChunk
  57 {
  58         int                    refcount;
  59         volatile int           num_elements;
  60         volatile gint8        *last_code_end;
  61         MonoJitInfo * volatile data [MONO_JIT_INFO_TABLE_CHUNK_SIZE];
  62 };
  63
  64 struct _MonoJitInfoTable
  65 {
  66         MonoDomain             *domain;
  67         int                     num_chunks;
  68         MonoJitInfoTableChunk  *chunks [MONO_ZERO_LEN_ARRAY];
  69 };
  70
  71 typedef GArray MonoAotModuleInfoTable;
  72
  73 typedef struct {
  74         guint32  flags;
  75         gint32   exvar_offset;
  76         gpointer try_start;
  77         gpointer try_end;
  78         gpointer handler_start;
  79         union {
  80                 MonoClass *catch_class;
  81                 gpointer filter;
  82         } data;
  83 } MonoJitExceptionInfo;
  84
  85 /*
  86  * Will contain information on the generic type arguments in the
  87  * future.  For now, all arguments are always reference types.
  88  */
  89 typedef struct {
  90         int dummy;
  91 } MonoGenericSharingContext;
  92
  93 typedef struct
  94 {
  95         MonoGenericSharingContext *generic_sharing_context;
  96         gint32 this_offset;
  97         guint8 this_reg;
  98         gboolean has_this:1;
  99         gboolean this_in_reg:1;
 100 } MonoGenericJitInfo;
 101
 102 struct _MonoJitInfo {
 103         /* NOTE: These first two elements (method and
 104            next_jit_code_hash) must be in the same order and at the
 105            same offset as in RuntimeMethod, because of the jit_code_hash
 106            internal hash table in MonoDomain. */
 107         MonoMethod *method;
 108         struct _MonoJitInfo *next_jit_code_hash;
 109         gpointer    code_start;
 110         /* This might contain an id for the unwind info instead of a register mask */
 111         guint32     used_regs;
 112         int         code_size;
 113         guint32     num_clauses:15;
 114         /* Whenever the code is domain neutral or 'shared' */
 115         gboolean    domain_neutral:1;
 116         gboolean    cas_inited:1;
 117         gboolean    cas_class_assert:1;
 118         gboolean    cas_class_deny:1;
 119         gboolean    cas_class_permitonly:1;
 120         gboolean    cas_method_assert:1;
 121         gboolean    cas_method_deny:1;
 122         gboolean    cas_method_permitonly:1;
 123         gboolean    has_generic_jit_info:1;
 124         gboolean    from_aot:1;
 125         MonoJitExceptionInfo clauses [MONO_ZERO_LEN_ARRAY];
 126         /* There is an optional MonoGenericJitInfo after the clauses */
 127 };
 128
 129 struct _MonoAppContext {
 130         MonoObject obj;
 131         gint32 domain_id;
 132         gint32 context_id;
 133         gpointer *static_data;
 134 };
 135
 136 /*
 137  * We have two unloading states because the domain
 138  * must remain fully functional while AppDomain::DomainUnload is
 139  * processed.
 140  * After that unloading began and all domain facilities are teared down
 141  * such as execution of new threadpool jobs.
 142  */
 143 typedef enum {
 144         MONO_APPDOMAIN_CREATED,
 145         MONO_APPDOMAIN_UNLOADING_START,
 146         MONO_APPDOMAIN_UNLOADING,
 147         MONO_APPDOMAIN_UNLOADED
 148 } MonoAppDomainState;
 149
 150 typedef struct _MonoThunkFreeList {
 151         guint32 size;
 152         int length;             /* only valid for the wait list */
 153         struct _MonoThunkFreeList *next;
 154 } MonoThunkFreeList;
 155
 156 typedef struct _MonoJitCodeHash MonoJitCodeHash;
 157
 158 struct _MonoDomain {
 159         /*
 160          * This lock must never be taken before the loader lock,
 161          * i.e. if both are taken by the same thread, the loader lock
 162          * must taken first.
 163          */
 164         CRITICAL_SECTION    lock;
 165         MonoMemPool        *mp;
 166         MonoCodeManager    *code_mp;
 167         /*
 168          * keep all the managed objects close to each other for the precise GC
 169          * For the Boehm GC we additionally keep close also other GC-tracked pointers.
 170          */
 171 #define MONO_DOMAIN_FIRST_OBJECT setup
 172         MonoAppDomainSetup *setup;
 173         MonoAppDomain      *domain;
 174         MonoAppContext     *default_context;
 175         MonoException      *out_of_memory_ex;
 176         MonoException      *null_reference_ex;
 177         MonoException      *stack_overflow_ex;
 178 #define MONO_DOMAIN_FIRST_GC_TRACKED env
 179         MonoGHashTable     *env;
 180         MonoGHashTable     *ldstr_table;
 181         /* hashtables for Reflection handles */
 182         MonoGHashTable     *type_hash;
 183         MonoGHashTable     *refobject_hash;
 184         /* a GC-tracked array to keep references to the static fields of types */
 185         gpointer           *static_data_array;
 186         /* maps class -> type initialization exception object */
 187         MonoGHashTable    *type_init_exception_hash;
 188         /* maps delegate trampoline addr -> delegate object */
 189         MonoGHashTable     *delegate_hash_table;
 190         /* typeof (void) */
 191         MonoObject         *typeof_void;
 192 #define MONO_DOMAIN_LAST_GC_TRACKED typeof_void
 193         guint32            state;
 194         /* Needed by Thread:GetDomainID() */
 195         gint32             domain_id;
 196         gint32             shadow_serial;
 197         unsigned char      inet_family_hint; // used in socket-io.c as a cache
 198         GSList             *domain_assemblies;
 199         MonoAssembly       *entry_assembly;
 200         char               *friendly_name;
 201         GHashTable         *class_vtable_hash;
 202         /* maps remote class key -> MonoRemoteClass */
 203         GHashTable         *proxy_vtable_hash;
 204         /* Protected by 'jit_code_hash_lock' */
 205         MonoInternalHashTable jit_code_hash;
 206         CRITICAL_SECTION    jit_code_hash_lock;
 207         int                 num_jit_info_tables;
 208         MonoJitInfoTable *
 209           volatile          jit_info_table;
 210         GSList             *jit_info_free_queue;
 211         /* Used when loading assemblies */
 212         gchar **search_path;
 213         gchar *private_bin_path;
 214
 215         /* Used by remoting proxies */
 216         MonoMethod         *create_proxy_for_type_method;
 217         MonoMethod         *private_invoke_method;
 218         /* Used to store offsets of thread and context static fields */
 219         GHashTable         *special_static_fields;
 220         /*
 221          * This must be a GHashTable, since these objects can't be finalized
 222          * if the hashtable contains a GC visible reference to them.
 223          */
 224         GHashTable         *finalizable_objects_hash;
 225         /* Used when accessing 'domain_assemblies' */
 226         CRITICAL_SECTION    assemblies_lock;
 227
 228         GHashTable         *method_rgctx_hash;
 229
 230         GHashTable         *generic_virtual_cases;
 231         MonoThunkFreeList **thunk_free_lists;
 232
 233         /* Information maintained by the JIT engine */
 234         gpointer runtime_info;
 235
 236         /*thread pool jobs, used to coordinate shutdown.*/
 237         int                                     threadpool_jobs;
 238         HANDLE                          cleanup_semaphore;
 239 };
 240
 241 typedef struct  {
 242         guint16 major, minor, build, revision;
 243 } AssemblyVersionSet;
 244
 245 /* MonoRuntimeInfo: Contains information about versions supported by this runtime */
 246 typedef struct  {
 247         const char runtime_version [12];
 248         const char framework_version [4];
 249         const AssemblyVersionSet version_sets [2];
 250 } MonoRuntimeInfo;
 251
 252 #define mono_domain_lock(domain)   EnterCriticalSection(&(domain)->lock)
 253 #define mono_domain_unlock(domain) LeaveCriticalSection(&(domain)->lock)
 254 #define mono_domain_assemblies_lock(domain)   EnterCriticalSection(&(domain)->assemblies_lock)
 255 #define mono_domain_assemblies_unlock(domain) LeaveCriticalSection(&(domain)->assemblies_lock)
 256 #define mono_domain_jit_code_hash_lock(domain)   EnterCriticalSection(&(domain)->jit_code_hash_lock)
 257 #define mono_domain_jit_code_hash_unlock(domain) LeaveCriticalSection(&(domain)->jit_code_hash_lock)
 258
 259 typedef MonoDomain* (*MonoLoadFunc) (const char *filename, const char *runtime_version);
 260
 261 void
 262 mono_install_runtime_load  (MonoLoadFunc func) MONO_INTERNAL;
 263
 264 MonoDomain*
 265 mono_runtime_load (const char *filename, const char *runtime_version) MONO_INTERNAL;
 266
 267 typedef void (*MonoCreateDomainFunc) (MonoDomain *domain);
 268
 269 void
 270 mono_install_create_domain_hook (MonoCreateDomainFunc func) MONO_INTERNAL;
 271
 272 typedef void (*MonoFreeDomainFunc) (MonoDomain *domain);
 273
 274 void
 275 mono_install_free_domain_hook (MonoFreeDomainFunc func) MONO_INTERNAL;
 276
 277 void
 278 mono_init_com_types (void) MONO_INTERNAL;
 279
 280 void
 281 mono_cleanup (void) MONO_INTERNAL;
 282
 283 void
 284 mono_close_exe_image (void) MONO_INTERNAL;
 285
 286 void
 287 mono_jit_info_table_add    (MonoDomain *domain, MonoJitInfo *ji) MONO_INTERNAL;
 288
 289 void
 290 mono_jit_info_table_remove (MonoDomain *domain, MonoJitInfo *ji) MONO_INTERNAL;
 291
 292 void
 293 mono_jit_info_add_aot_module (MonoImage *image, gpointer start, gpointer end) MONO_INTERNAL;
 294
 295 MonoGenericJitInfo*
 296 mono_jit_info_get_generic_jit_info (MonoJitInfo *ji) MONO_INTERNAL;
 297
 298 MonoGenericSharingContext*
 299 mono_jit_info_get_generic_sharing_context (MonoJitInfo *ji) MONO_INTERNAL;
 300
 301 void
 302 mono_jit_info_set_generic_sharing_context (MonoJitInfo *ji, MonoGenericSharingContext *gsctx) MONO_INTERNAL;
 303
 304 char *
 305 mono_make_shadow_copy (const char *filename) MONO_INTERNAL;
 306
 307 gboolean
 308 mono_is_shadow_copy_enabled (MonoDomain *domain, const gchar *dir_name) MONO_INTERNAL;
 309
 310 gpointer
 311 mono_domain_alloc  (MonoDomain *domain, guint size) MONO_INTERNAL;
 312
 313 gpointer
 314 mono_domain_alloc0 (MonoDomain *domain, guint size) MONO_INTERNAL;
 315
 316 /*
 317  * Installs a new function which is used to return a MonoJitInfo for a method inside
 318  * an AOT module.
 319  */
 320 typedef MonoJitInfo *(*MonoJitInfoFindInAot)         (MonoDomain *domain, MonoImage *image, gpointer addr);
 321 void          mono_install_jit_info_find_in_aot (MonoJitInfoFindInAot func) MONO_INTERNAL;
 322
 323 void
 324 mono_jit_code_hash_init (MonoInternalHashTable *jit_code_hash) MONO_INTERNAL;
 325
 326 MonoAppDomain *
 327 ves_icall_System_AppDomain_getCurDomain            (void) MONO_INTERNAL;
 328
 329 MonoAppDomain *
 330 ves_icall_System_AppDomain_getRootDomain           (void) MONO_INTERNAL;
 331
 332 MonoAppDomain *
 333 ves_icall_System_AppDomain_createDomain            (MonoString         *friendly_name,
 334                                                     MonoAppDomainSetup *setup) MONO_INTERNAL;
 335
 336 MonoObject *
 337 ves_icall_System_AppDomain_GetData                 (MonoAppDomain *ad,
 338                                                     MonoString    *name) MONO_INTERNAL;
 339
 340 MonoReflectionAssembly *
 341 ves_icall_System_AppDomain_LoadAssemblyRaw         (MonoAppDomain *ad,
 342                                                     MonoArray *raw_assembly,
 343                                                     MonoArray *raw_symbol_store,
 344                                                     MonoObject *evidence,
 345                                                     MonoBoolean refonly) MONO_INTERNAL;
 346
 347 void
 348 ves_icall_System_AppDomain_SetData                 (MonoAppDomain *ad,
 349                                                     MonoString    *name,
 350                                                     MonoObject    *data) MONO_INTERNAL;
 351
 352 MonoAppDomainSetup *
 353 ves_icall_System_AppDomain_getSetup                (MonoAppDomain *ad) MONO_INTERNAL;
 354
 355 MonoString *
 356 ves_icall_System_AppDomain_getFriendlyName         (MonoAppDomain *ad) MONO_INTERNAL;
 357
 358 MonoArray *
 359 ves_icall_System_AppDomain_GetAssemblies           (MonoAppDomain *ad,
 360                                                     MonoBoolean refonly) MONO_INTERNAL;
 361
 362 MonoReflectionAssembly *
 363 ves_icall_System_Reflection_Assembly_LoadFrom      (MonoString *fname,
 364                                                     MonoBoolean refonly) MONO_INTERNAL;
 365
 366 MonoReflectionAssembly *
 367 ves_icall_System_AppDomain_LoadAssembly            (MonoAppDomain *ad,
 368                                                     MonoString *assRef,
 369                                                     MonoObject    *evidence,
 370                                                     MonoBoolean refonly) MONO_INTERNAL;
 371
 372 gboolean
 373 ves_icall_System_AppDomain_InternalIsFinalizingForUnload (gint32 domain_id) MONO_INTERNAL;
 374
 375 void
 376 ves_icall_System_AppDomain_InternalUnload          (gint32 domain_id) MONO_INTERNAL;
 377
 378 gint32
 379 ves_icall_System_AppDomain_ExecuteAssembly         (MonoAppDomain *ad,
 380                                                                                                         MonoReflectionAssembly *refass,
 381                                                                                                         MonoArray     *args) MONO_INTERNAL;
 382
 383 MonoAppDomain *
 384 ves_icall_System_AppDomain_InternalSetDomain       (MonoAppDomain *ad) MONO_INTERNAL;
 385
 386 MonoAppDomain *
 387 ves_icall_System_AppDomain_InternalSetDomainByID   (gint32 domainid) MONO_INTERNAL;
 388
 389 void
 390 ves_icall_System_AppDomain_InternalPushDomainRef (MonoAppDomain *ad) MONO_INTERNAL;
 391
 392 void
 393 ves_icall_System_AppDomain_InternalPushDomainRefByID (gint32 domain_id) MONO_INTERNAL;
 394
 395 void
 396 ves_icall_System_AppDomain_InternalPopDomainRef (void) MONO_INTERNAL;
 397
 398 MonoAppContext *
 399 ves_icall_System_AppDomain_InternalGetContext      (void) MONO_INTERNAL;
 400
 401 MonoAppContext *
 402 ves_icall_System_AppDomain_InternalGetDefaultContext      (void) MONO_INTERNAL;
 403
 404 MonoAppContext *
 405 ves_icall_System_AppDomain_InternalSetContext      (MonoAppContext *mc) MONO_INTERNAL;
 406
 407 gint32
 408 ves_icall_System_AppDomain_GetIDFromDomain (MonoAppDomain * ad) MONO_INTERNAL;
 409
 410 MonoString *
 411 ves_icall_System_AppDomain_InternalGetProcessGuid (MonoString* newguid) MONO_INTERNAL;
 412
 413 MonoAssembly *
 414 mono_assembly_load_corlib (const MonoRuntimeInfo *runtime, MonoImageOpenStatus *status) MONO_INTERNAL;
 415
 416 const MonoRuntimeInfo*
 417 mono_get_runtime_info (void) MONO_INTERNAL;
 418
 419 void
 420 mono_runtime_set_no_exec (gboolean val) MONO_INTERNAL;
 421
 422 gboolean
 423 mono_runtime_get_no_exec (void) MONO_INTERNAL;
 424
 425 gboolean
 426 mono_assembly_name_parse (const char *name, MonoAssemblyName *aname) MONO_INTERNAL;
 427
 428 void
 429 mono_assembly_name_free (MonoAssemblyName *aname) MONO_INTERNAL;
 430
 431 MonoImage *mono_assembly_open_from_bundle (const char *filename,
 432                                            MonoImageOpenStatus *status,
 433                                            gboolean refonly) MONO_INTERNAL;
 434
 435 void
 436 mono_domain_add_class_static_data (MonoDomain *domain, MonoClass *klass, gpointer data, guint32 *bitmap);
 437
 438 MonoReflectionAssembly *
 439 mono_try_assembly_resolve (MonoDomain *domain, MonoString *fname, gboolean refonly) MONO_INTERNAL;
 440
 441 MonoAssembly* mono_assembly_load_full_nosearch (MonoAssemblyName *aname,
 442                                                 const char       *basedir,
 443                                                 MonoImageOpenStatus *status,
 444                                                 gboolean refonly) MONO_INTERNAL;
 445
 446 void mono_set_private_bin_path_from_config (MonoDomain *domain) MONO_INTERNAL;
 447
 448 int mono_framework_version (void) MONO_INTERNAL;
 449
 450 #endif /* __MONO_METADATA_DOMAIN_INTERNALS_H__ */