2 * appdomain.c: AppDomain functions
5 * Dietmar Maurer (dietmar@ximian.com)
7 * Gonzalo Paniagua Javier (gonzalo@ximian.com)
9 * Copyright 2001-2003 Ximian, Inc (http://www.ximian.com)
10 * Copyright 2004-2009 Novell, Inc (http://www.novell.com)
11 * Copyright 2012 Xamarin Inc
13 #undef ASSEMBLY_LOAD_DEBUG
19 #include <sys/types.h>
21 #ifdef HAVE_SYS_TIME_H
30 #ifdef HAVE_SYS_UTIME_H
31 #include <sys/utime.h>
35 #include <mono/metadata/gc-internal.h>
36 #include <mono/metadata/object.h>
37 #include <mono/metadata/domain-internals.h>
38 #include "mono/metadata/metadata-internals.h"
39 #include <mono/metadata/assembly.h>
40 #include <mono/metadata/exception.h>
41 #include <mono/metadata/threads.h>
42 #include <mono/metadata/socket-io.h>
43 #include <mono/metadata/tabledefs.h>
44 #include <mono/metadata/gc-internal.h>
45 #include <mono/metadata/mono-gc.h>
46 #include <mono/metadata/marshal.h>
47 #include <mono/metadata/monitor.h>
48 #include <mono/metadata/threadpool.h>
49 #include <mono/metadata/mono-debug.h>
50 #include <mono/metadata/mono-debug-debugger.h>
51 #include <mono/metadata/attach.h>
52 #include <mono/metadata/file-io.h>
53 #include <mono/metadata/lock-tracer.h>
54 #include <mono/metadata/console-io.h>
55 #include <mono/metadata/threads-types.h>
56 #include <mono/metadata/tokentype.h>
57 #include <mono/utils/mono-uri.h>
58 #include <mono/utils/mono-logger-internal.h>
59 #include <mono/utils/mono-path.h>
60 #include <mono/utils/mono-stdlib.h>
61 #include <mono/utils/mono-io-portability.h>
62 #include <mono/utils/mono-error-internals.h>
63 #include <mono/utils/atomic.h>
64 #include <mono/utils/mono-memory-model.h>
70 * This is the version number of the corlib-runtime interface. When
71 * making changes to this interface (by changing the layout
72 * of classes the runtime knows about, changing icall signature or
73 * semantics etc), increment this variable. Also increment the
74 * pair of this variable in mscorlib in:
75 * mcs/class/mscorlib/System/Environment.cs
77 * Changes which are already detected at runtime, like the addition
78 * of icalls, do not require an increment.
80 #define MONO_CORLIB_VERSION 111
85 int assemblybinding_count;
90 CRITICAL_SECTION mono_delegate_section;
92 CRITICAL_SECTION mono_strtod_mutex;
94 static gunichar2 process_guid [36];
95 static gboolean process_guid_set = FALSE;
97 static gboolean no_exec = FALSE;
100 mono_domain_assembly_preload (MonoAssemblyName *aname,
101 gchar **assemblies_path,
104 static MonoAssembly *
105 mono_domain_assembly_search (MonoAssemblyName *aname,
108 static MonoAssembly *
109 mono_domain_assembly_postload_search (MonoAssemblyName *aname,
113 mono_domain_fire_assembly_load (MonoAssembly *assembly, gpointer user_data);
116 add_assemblies_to_domain (MonoDomain *domain, MonoAssembly *ass, GHashTable *hash);
118 static MonoAppDomain *
119 mono_domain_create_appdomain_internal (char *friendly_name, MonoAppDomainSetup *setup);
122 get_shadow_assembly_location_base (MonoDomain *domain, MonoError *error);
124 static MonoLoadFunc load_function = NULL;
127 mono_install_runtime_load (MonoLoadFunc func)
129 load_function = func;
133 mono_runtime_load (const char *filename, const char *runtime_version)
135 g_assert (load_function);
136 return load_function (filename, runtime_version);
140 * mono_runtime_set_no_exec:
142 * Instructs the runtime to operate in static mode, i.e. avoid/do not
143 * allow managed code execution. This is useful for running the AOT
144 * compiler on platforms which allow full-aot execution only. This
145 * should be called before mono_runtime_init ().
148 mono_runtime_set_no_exec (gboolean val)
154 * mono_runtime_get_no_exec:
156 * If true, then the runtime will not allow managed code execution.
159 mono_runtime_get_no_exec (void)
165 create_domain_objects (MonoDomain *domain)
167 MonoDomain *old_domain = mono_domain_get ();
170 if (domain != old_domain) {
171 mono_thread_push_appdomain_ref (domain);
172 mono_domain_set_internal_with_options (domain, FALSE);
176 * Create an instance early since we can't do it when there is no memory.
178 arg = mono_string_new (domain, "Out of memory");
179 domain->out_of_memory_ex = mono_exception_from_name_two_strings (mono_defaults.corlib, "System", "OutOfMemoryException", arg, NULL);
182 * These two are needed because the signal handlers might be executing on
183 * an alternate stack, and Boehm GC can't handle that.
185 arg = mono_string_new (domain, "A null value was found where an object instance was required");
186 domain->null_reference_ex = mono_exception_from_name_two_strings (mono_defaults.corlib, "System", "NullReferenceException", arg, NULL);
187 arg = mono_string_new (domain, "The requested operation caused a stack overflow.");
188 domain->stack_overflow_ex = mono_exception_from_name_two_strings (mono_defaults.corlib, "System", "StackOverflowException", arg, NULL);
190 /*The ephemeron tombstone i*/
191 domain->ephemeron_tombstone = mono_object_new (domain, mono_defaults.object_class);
193 if (domain != old_domain) {
194 mono_thread_pop_appdomain_ref ();
195 mono_domain_set_internal_with_options (old_domain, FALSE);
199 * This class is used during exception handling, so initialize it here, to prevent
200 * stack overflows while handling stack overflows.
202 mono_class_init (mono_array_class_get (mono_defaults.int_class, 1));
207 * @domain: domain returned by mono_init ()
209 * Initialize the core AppDomain: this function will run also some
210 * IL initialization code, so it needs the execution engine to be fully
213 * AppDomain.SetupInformation is set up in mono_runtime_exec_main, where
214 * we know the entry_assembly.
218 mono_runtime_init (MonoDomain *domain, MonoThreadStartCB start_cb,
219 MonoThreadAttachCB attach_cb)
221 MonoAppDomainSetup *setup;
225 mono_portability_helpers_init ();
227 mono_gc_base_init ();
228 mono_monitor_init ();
229 mono_thread_pool_init ();
230 mono_marshal_init ();
232 mono_install_assembly_preload_hook (mono_domain_assembly_preload, GUINT_TO_POINTER (FALSE));
233 mono_install_assembly_refonly_preload_hook (mono_domain_assembly_preload, GUINT_TO_POINTER (TRUE));
234 mono_install_assembly_search_hook (mono_domain_assembly_search, GUINT_TO_POINTER (FALSE));
235 mono_install_assembly_refonly_search_hook (mono_domain_assembly_search, GUINT_TO_POINTER (TRUE));
236 mono_install_assembly_postload_search_hook (mono_domain_assembly_postload_search, GUINT_TO_POINTER (FALSE));
237 mono_install_assembly_postload_refonly_search_hook (mono_domain_assembly_postload_search, GUINT_TO_POINTER (TRUE));
238 mono_install_assembly_load_hook (mono_domain_fire_assembly_load, NULL);
239 mono_install_lookup_dynamic_token (mono_reflection_lookup_dynamic_token);
241 mono_thread_init (start_cb, attach_cb);
243 class = mono_class_from_name (mono_defaults.corlib, "System", "AppDomainSetup");
244 setup = (MonoAppDomainSetup *) mono_object_new (domain, class);
246 class = mono_class_from_name (mono_defaults.corlib, "System", "AppDomain");
247 ad = (MonoAppDomain *) mono_object_new (domain, class);
250 domain->setup = setup;
252 InitializeCriticalSection (&mono_delegate_section);
254 InitializeCriticalSection (&mono_strtod_mutex);
256 mono_thread_attach (domain);
257 mono_context_init (domain);
258 mono_context_set (domain->default_context);
260 mono_type_initialization_init ();
262 if (!mono_runtime_get_no_exec ())
263 create_domain_objects (domain);
265 /* GC init has to happen after thread init */
268 #ifndef DISABLE_SOCKETS
269 mono_network_init ();
272 mono_console_init ();
275 mono_locks_tracer_init ();
277 /* mscorlib is loaded before we install the load hook */
278 mono_domain_fire_assembly_load (mono_defaults.corlib->assembly, NULL);
284 mono_get_corlib_version (void)
287 MonoClassField *field;
290 klass = mono_class_from_name (mono_defaults.corlib, "System", "Environment");
291 mono_class_init (klass);
292 field = mono_class_get_field_from_name (klass, "mono_corlib_version");
295 if (! (field->type->attrs & FIELD_ATTRIBUTE_STATIC))
297 value = mono_field_get_value_object (mono_domain_get (), field, NULL);
298 return *(gint32*)((gchar*)value + sizeof (MonoObject));
302 * mono_check_corlib_version
304 * Checks that the corlib that is loaded matches the version of this runtime.
306 * Returns: NULL if the runtime will work with the corlib, or a g_malloc
307 * allocated string with the error otherwise.
310 mono_check_corlib_version (void)
312 int version = mono_get_corlib_version ();
313 if (version != MONO_CORLIB_VERSION)
314 return g_strdup_printf ("expected corlib version %d, found %d.", MONO_CORLIB_VERSION, version);
321 * @domain: The domain where the System.Runtime.Remoting.Context.Context is initialized
323 * Initializes the @domain's default System.Runtime.Remoting's Context.
326 mono_context_init (MonoDomain *domain)
329 MonoAppContext *context;
331 class = mono_class_from_name (mono_defaults.corlib, "System.Runtime.Remoting.Contexts", "Context");
332 context = (MonoAppContext *) mono_object_new (domain, class);
333 context->domain_id = domain->domain_id;
334 context->context_id = 0;
335 domain->default_context = context;
339 * mono_runtime_cleanup:
344 * This must not be called while there are still running threads executing
348 mono_runtime_cleanup (MonoDomain *domain)
350 mono_attach_cleanup ();
352 /* This ends up calling any pending pending (for at most 2 seconds) */
355 mono_thread_cleanup ();
357 #ifndef DISABLE_SOCKETS
358 mono_network_cleanup ();
360 mono_marshal_cleanup ();
362 mono_type_initialization_cleanup ();
364 mono_monitor_cleanup ();
367 static MonoDomainFunc quit_function = NULL;
370 mono_install_runtime_cleanup (MonoDomainFunc func)
372 quit_function = func;
378 if (quit_function != NULL)
379 quit_function (mono_get_root_domain (), NULL);
383 * mono_domain_create_appdomain:
384 * @friendly_name: The friendly name of the appdomain to create
385 * @configuration_file: The configuration file to initialize the appdomain with
387 * Returns a MonoDomain initialized with the appdomain
390 mono_domain_create_appdomain (char *friendly_name, char *configuration_file)
393 MonoAppDomainSetup *setup;
396 class = mono_class_from_name (mono_defaults.corlib, "System", "AppDomainSetup");
397 setup = (MonoAppDomainSetup *) mono_object_new (mono_domain_get (), class);
398 setup->configuration_file = configuration_file != NULL ? mono_string_new (mono_domain_get (), configuration_file) : NULL;
400 ad = mono_domain_create_appdomain_internal (friendly_name, setup);
402 return mono_domain_from_appdomain (ad);
405 static MonoAppDomainSetup*
406 copy_app_domain_setup (MonoDomain *domain, MonoAppDomainSetup *setup)
408 MonoDomain *caller_domain = mono_domain_get ();
409 MonoClass *ads_class = mono_class_from_name (mono_defaults.corlib, "System", "AppDomainSetup");
410 MonoAppDomainSetup *copy = (MonoAppDomainSetup*)mono_object_new (domain, ads_class);
412 mono_domain_set_internal (domain);
414 MONO_OBJECT_SETREF (copy, application_base, mono_marshal_xdomain_copy_value ((MonoObject*)setup->application_base));
415 MONO_OBJECT_SETREF (copy, application_name, mono_marshal_xdomain_copy_value ((MonoObject*)setup->application_name));
416 MONO_OBJECT_SETREF (copy, cache_path, mono_marshal_xdomain_copy_value ((MonoObject*)setup->cache_path));
417 MONO_OBJECT_SETREF (copy, configuration_file, mono_marshal_xdomain_copy_value ((MonoObject*)setup->configuration_file));
418 MONO_OBJECT_SETREF (copy, dynamic_base, mono_marshal_xdomain_copy_value ((MonoObject*)setup->dynamic_base));
419 MONO_OBJECT_SETREF (copy, license_file, mono_marshal_xdomain_copy_value ((MonoObject*)setup->license_file));
420 MONO_OBJECT_SETREF (copy, private_bin_path, mono_marshal_xdomain_copy_value ((MonoObject*)setup->private_bin_path));
421 MONO_OBJECT_SETREF (copy, private_bin_path_probe, mono_marshal_xdomain_copy_value ((MonoObject*)setup->private_bin_path_probe));
422 MONO_OBJECT_SETREF (copy, shadow_copy_directories, mono_marshal_xdomain_copy_value ((MonoObject*)setup->shadow_copy_directories));
423 MONO_OBJECT_SETREF (copy, shadow_copy_files, mono_marshal_xdomain_copy_value ((MonoObject*)setup->shadow_copy_files));
424 copy->publisher_policy = setup->publisher_policy;
425 copy->path_changed = setup->path_changed;
426 copy->loader_optimization = setup->loader_optimization;
427 copy->disallow_binding_redirects = setup->disallow_binding_redirects;
428 copy->disallow_code_downloads = setup->disallow_code_downloads;
429 MONO_OBJECT_SETREF (copy, domain_initializer_args, mono_marshal_xdomain_copy_value ((MonoObject*)setup->domain_initializer_args));
430 copy->disallow_appbase_probe = setup->disallow_appbase_probe;
431 MONO_OBJECT_SETREF (copy, application_trust, mono_marshal_xdomain_copy_value ((MonoObject*)setup->application_trust));
432 MONO_OBJECT_SETREF (copy, configuration_bytes, mono_marshal_xdomain_copy_value ((MonoObject*)setup->configuration_bytes));
433 MONO_OBJECT_SETREF (copy, serialized_non_primitives, mono_marshal_xdomain_copy_value ((MonoObject*)setup->serialized_non_primitives));
435 mono_domain_set_internal (caller_domain);
440 static MonoAppDomain *
441 mono_domain_create_appdomain_internal (char *friendly_name, MonoAppDomainSetup *setup)
447 char *shadow_location;
451 adclass = mono_class_from_name (mono_defaults.corlib, "System", "AppDomain");
453 /* FIXME: pin all those objects */
454 data = mono_domain_create();
456 ad = (MonoAppDomain *) mono_object_new (data, adclass);
459 data->friendly_name = g_strdup (friendly_name);
461 if (!setup->application_base) {
462 /* Inherit from the root domain since MS.NET does this */
463 MonoDomain *root = mono_get_root_domain ();
464 if (root->setup->application_base)
465 MONO_OBJECT_SETREF (setup, application_base, mono_string_new_utf16 (data, mono_string_chars (root->setup->application_base), mono_string_length (root->setup->application_base)));
468 mono_context_init (data);
470 data->setup = copy_app_domain_setup (data, setup);
471 mono_set_private_bin_path_from_config (data);
472 add_assemblies_to_domain (data, mono_defaults.corlib->assembly, NULL);
474 #ifndef DISABLE_SHADOW_COPY
475 /*FIXME, guard this for when the debugger is not running */
476 shadow_location = get_shadow_assembly_location_base (data, &error);
477 if (!mono_error_ok (&error))
478 mono_error_raise_exception (&error);
479 g_free (shadow_location);
482 create_domain_objects (data);
488 * mono_domain_has_type_resolve:
489 * @domain: application domains being looked up
491 * Returns true if the AppDomain.TypeResolve field has been
495 mono_domain_has_type_resolve (MonoDomain *domain)
497 static MonoClassField *field = NULL;
501 field = mono_class_get_field_from_name (mono_defaults.appdomain_class, "TypeResolve");
505 /*pedump doesn't create an appdomin, so the domain object doesn't exist.*/
509 mono_field_get_value ((MonoObject*)(domain->domain), field, &o);
514 * mono_domain_try_type_resolve:
515 * @domain: application domainwhere the name where the type is going to be resolved
516 * @name: the name of the type to resolve or NULL.
517 * @tb: A System.Reflection.Emit.TypeBuilder, used if name is NULL.
519 * This routine invokes the internal System.AppDomain.DoTypeResolve and returns
520 * the assembly that matches name.
522 * If @name is null, the value of ((TypeBuilder)tb).FullName is used instead
524 * Returns: A MonoReflectionAssembly or NULL if not found
526 MonoReflectionAssembly *
527 mono_domain_try_type_resolve (MonoDomain *domain, char *name, MonoObject *tb)
531 static MonoMethod *method = NULL;
533 g_assert (domain != NULL && ((name != NULL) || (tb != NULL)));
535 if (method == NULL) {
536 klass = domain->domain->mbr.obj.vtable->klass;
539 method = mono_class_get_method_from_name (klass, "DoTypeResolve", -1);
540 if (method == NULL) {
541 g_warning ("Method AppDomain.DoTypeResolve not found.\n");
547 *params = (MonoObject*)mono_string_new (mono_domain_get (), name);
550 return (MonoReflectionAssembly *) mono_runtime_invoke (method, domain->domain, params, NULL);
554 * mono_domain_owns_vtable_slot:
556 * Returns whenever VTABLE_SLOT is inside a vtable which belongs to DOMAIN.
559 mono_domain_owns_vtable_slot (MonoDomain *domain, gpointer vtable_slot)
563 mono_domain_lock (domain);
564 res = mono_mempool_contains_addr (domain->mp, vtable_slot);
565 mono_domain_unlock (domain);
572 * @force: force setting.
574 * Set the current appdomain to @domain. If @force is set, set it even
575 * if it is being unloaded.
579 * FALSE if the domain is unloaded
582 mono_domain_set (MonoDomain *domain, gboolean force)
584 if (!force && domain->state == MONO_APPDOMAIN_UNLOADED)
587 mono_domain_set_internal (domain);
593 ves_icall_System_AppDomain_GetData (MonoAppDomain *ad, MonoString *name)
601 g_assert (ad != NULL);
603 g_assert (add != NULL);
606 mono_raise_exception (mono_get_exception_argument_null ("name"));
608 str = mono_string_to_utf8 (name);
610 mono_domain_lock (add);
612 if (!strcmp (str, "APPBASE"))
613 o = (MonoObject *)add->setup->application_base;
614 else if (!strcmp (str, "APP_CONFIG_FILE"))
615 o = (MonoObject *)add->setup->configuration_file;
616 else if (!strcmp (str, "DYNAMIC_BASE"))
617 o = (MonoObject *)add->setup->dynamic_base;
618 else if (!strcmp (str, "APP_NAME"))
619 o = (MonoObject *)add->setup->application_name;
620 else if (!strcmp (str, "CACHE_BASE"))
621 o = (MonoObject *)add->setup->cache_path;
622 else if (!strcmp (str, "PRIVATE_BINPATH"))
623 o = (MonoObject *)add->setup->private_bin_path;
624 else if (!strcmp (str, "BINPATH_PROBE_ONLY"))
625 o = (MonoObject *)add->setup->private_bin_path_probe;
626 else if (!strcmp (str, "SHADOW_COPY_DIRS"))
627 o = (MonoObject *)add->setup->shadow_copy_directories;
628 else if (!strcmp (str, "FORCE_CACHE_INSTALL"))
629 o = (MonoObject *)add->setup->shadow_copy_files;
631 o = mono_g_hash_table_lookup (add->env, name);
633 mono_domain_unlock (add);
643 ves_icall_System_AppDomain_SetData (MonoAppDomain *ad, MonoString *name, MonoObject *data)
649 g_assert (ad != NULL);
651 g_assert (add != NULL);
654 mono_raise_exception (mono_get_exception_argument_null ("name"));
656 mono_domain_lock (add);
658 mono_g_hash_table_insert (add->env, name, data);
660 mono_domain_unlock (add);
664 ves_icall_System_AppDomain_getSetup (MonoAppDomain *ad)
668 g_assert (ad != NULL);
669 g_assert (ad->data != NULL);
671 return ad->data->setup;
675 ves_icall_System_AppDomain_getFriendlyName (MonoAppDomain *ad)
679 g_assert (ad != NULL);
680 g_assert (ad->data != NULL);
682 return mono_string_new (ad->data, ad->data->friendly_name);
686 ves_icall_System_AppDomain_getCurDomain ()
688 MonoDomain *add = mono_domain_get ();
696 ves_icall_System_AppDomain_getRootDomain ()
698 MonoDomain *root = mono_get_root_domain ();
706 get_attribute_value (const gchar **attribute_names,
707 const gchar **attribute_values,
708 const char *att_name)
711 for (n = 0; attribute_names [n] != NULL; n++) {
712 if (strcmp (attribute_names [n], att_name) == 0)
713 return g_strdup (attribute_values [n]);
719 start_element (GMarkupParseContext *context,
720 const gchar *element_name,
721 const gchar **attribute_names,
722 const gchar **attribute_values,
726 RuntimeConfig *runtime_config = user_data;
728 if (strcmp (element_name, "runtime") == 0) {
729 runtime_config->runtime_count++;
733 if (strcmp (element_name, "assemblyBinding") == 0) {
734 runtime_config->assemblybinding_count++;
738 if (runtime_config->runtime_count != 1 || runtime_config->assemblybinding_count != 1)
741 if (strcmp (element_name, "probing") != 0)
744 g_free (runtime_config->domain->private_bin_path);
745 runtime_config->domain->private_bin_path = get_attribute_value (attribute_names, attribute_values, "privatePath");
746 if (runtime_config->domain->private_bin_path && !runtime_config->domain->private_bin_path [0]) {
747 g_free (runtime_config->domain->private_bin_path);
748 runtime_config->domain->private_bin_path = NULL;
754 end_element (GMarkupParseContext *context,
755 const gchar *element_name,
759 RuntimeConfig *runtime_config = user_data;
760 if (strcmp (element_name, "runtime") == 0)
761 runtime_config->runtime_count--;
762 else if (strcmp (element_name, "assemblyBinding") == 0)
763 runtime_config->assemblybinding_count--;
767 parse_error (GMarkupParseContext *context, GError *error, gpointer user_data)
769 RuntimeConfig *state = user_data;
771 const gchar *filename;
773 filename = state && state->filename ? (gchar *) state->filename : "<unknown>";
774 msg = error && error->message ? error->message : "";
775 g_warning ("Error parsing %s: %s", filename, msg);
778 static const GMarkupParser
788 mono_set_private_bin_path_from_config (MonoDomain *domain)
791 gchar *config_file_name = NULL, *text = NULL, *config_file_path = NULL;
793 GMarkupParseContext *context;
794 RuntimeConfig runtime_config;
797 if (!domain || !domain->setup || !domain->setup->configuration_file)
800 config_file_name = mono_string_to_utf8_checked (domain->setup->configuration_file, &error);
801 if (!mono_error_ok (&error)) {
802 mono_error_cleanup (&error);
806 config_file_path = mono_portability_find_file (config_file_name, TRUE);
807 if (!config_file_path)
808 config_file_path = config_file_name;
810 if (!g_file_get_contents (config_file_path, &text, &len, NULL))
813 runtime_config.runtime_count = 0;
814 runtime_config.assemblybinding_count = 0;
815 runtime_config.domain = domain;
816 runtime_config.filename = config_file_path;
819 if (len > 3 && text [0] == '\xef' && text [1] == (gchar) '\xbb' && text [2] == '\xbf')
820 offset = 3; /* Skip UTF-8 BOM */
822 context = g_markup_parse_context_new (&mono_parser, 0, &runtime_config, NULL);
823 if (g_markup_parse_context_parse (context, text + offset, len - offset, NULL))
824 g_markup_parse_context_end_parse (context, NULL);
825 g_markup_parse_context_free (context);
829 if (config_file_name != config_file_path)
830 g_free (config_file_name);
831 g_free (config_file_path);
835 ves_icall_System_AppDomain_createDomain (MonoString *friendly_name, MonoAppDomainSetup *setup)
837 #ifdef DISABLE_APPDOMAINS
838 mono_raise_exception (mono_get_exception_not_supported ("AppDomain creation is not supported on this runtime."));
841 char *fname = mono_string_to_utf8 (friendly_name);
842 MonoAppDomain *ad = mono_domain_create_appdomain_internal (fname, setup);
851 ves_icall_System_AppDomain_GetAssemblies (MonoAppDomain *ad, MonoBoolean refonly)
853 MonoDomain *domain = ad->data;
855 static MonoClass *System_Reflection_Assembly;
859 GPtrArray *assemblies;
863 if (!System_Reflection_Assembly)
864 System_Reflection_Assembly = mono_class_from_name (
865 mono_defaults.corlib, "System.Reflection", "Assembly");
868 * Make a copy of the list of assemblies because we can't hold the assemblies
869 * lock while creating objects etc.
871 assemblies = g_ptr_array_new ();
872 /* Need to skip internal assembly builders created by remoting */
873 mono_domain_assemblies_lock (domain);
874 for (tmp = domain->domain_assemblies; tmp; tmp = tmp->next) {
876 if (refonly != ass->ref_only)
878 if (ass->corlib_internal)
880 g_ptr_array_add (assemblies, ass);
882 mono_domain_assemblies_unlock (domain);
884 res = mono_array_new (domain, System_Reflection_Assembly, assemblies->len);
885 for (i = 0; i < assemblies->len; ++i) {
886 ass = g_ptr_array_index (assemblies, i);
887 mono_array_setref (res, i, mono_assembly_get_object (domain, ass));
890 g_ptr_array_free (assemblies, TRUE);
895 MonoReflectionAssembly *
896 mono_try_assembly_resolve (MonoDomain *domain, MonoString *fname, gboolean refonly)
900 MonoBoolean isrefonly;
903 if (mono_runtime_get_no_exec ())
906 g_assert (domain != NULL && fname != NULL);
908 klass = domain->domain->mbr.obj.vtable->klass;
911 method = mono_class_get_method_from_name (klass, "DoAssemblyResolve", -1);
912 if (method == NULL) {
913 g_warning ("Method AppDomain.DoAssemblyResolve not found.\n");
917 isrefonly = refonly ? 1 : 0;
919 params [1] = &isrefonly;
920 return (MonoReflectionAssembly *) mono_runtime_invoke (method, domain->domain, params, NULL);
923 static MonoAssembly *
924 mono_domain_assembly_postload_search (MonoAssemblyName *aname,
927 gboolean refonly = GPOINTER_TO_UINT (user_data);
928 MonoReflectionAssembly *assembly;
929 MonoDomain *domain = mono_domain_get ();
933 aname_str = mono_stringify_assembly_name (aname);
935 /* FIXME: We invoke managed code here, so there is a potential for deadlocks */
936 str = mono_string_new (domain, aname_str);
941 assembly = mono_try_assembly_resolve (domain, str, refonly);
945 return assembly->assembly;
951 * LOCKING: assumes assemblies_lock in the domain is already locked.
954 add_assemblies_to_domain (MonoDomain *domain, MonoAssembly *ass, GHashTable *ht)
958 gboolean destroy_ht = FALSE;
960 if (!ass->aname.name)
964 ht = g_hash_table_new (mono_aligned_addr_hash, NULL);
968 /* FIXME: handle lazy loaded assemblies */
969 for (tmp = domain->domain_assemblies; tmp; tmp = tmp->next) {
970 g_hash_table_insert (ht, tmp->data, tmp->data);
972 if (!g_hash_table_lookup (ht, ass)) {
973 mono_assembly_addref (ass);
974 g_hash_table_insert (ht, ass, ass);
975 domain->domain_assemblies = g_slist_append (domain->domain_assemblies, ass);
976 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_ASSEMBLY, "Assembly %s[%p] added to domain %s, ref_count=%d", ass->aname.name, ass, domain->friendly_name, ass->ref_count);
979 if (ass->image->references) {
980 for (i = 0; ass->image->references [i] != NULL; i++) {
981 if (ass->image->references [i] != REFERENCE_MISSING)
982 if (!g_hash_table_lookup (ht, ass->image->references [i])) {
983 add_assemblies_to_domain (domain, ass->image->references [i], ht);
988 g_hash_table_destroy (ht);
992 mono_domain_fire_assembly_load (MonoAssembly *assembly, gpointer user_data)
994 static MonoClassField *assembly_load_field;
995 static MonoMethod *assembly_load_method;
996 MonoDomain *domain = mono_domain_get ();
997 MonoReflectionAssembly *ref_assembly;
1002 if (!domain->domain)
1003 /* This can happen during startup */
1005 #ifdef ASSEMBLY_LOAD_DEBUG
1006 fprintf (stderr, "Loading %s into domain %s\n", assembly->aname.name, domain->friendly_name);
1008 klass = domain->domain->mbr.obj.vtable->klass;
1010 mono_domain_assemblies_lock (domain);
1011 add_assemblies_to_domain (domain, assembly, NULL);
1012 mono_domain_assemblies_unlock (domain);
1014 if (assembly_load_field == NULL) {
1015 assembly_load_field = mono_class_get_field_from_name (klass, "AssemblyLoad");
1016 g_assert (assembly_load_field);
1019 mono_field_get_value ((MonoObject*) domain->domain, assembly_load_field, &load_value);
1020 if (load_value == NULL) {
1021 /* No events waiting to be triggered */
1025 ref_assembly = mono_assembly_get_object (domain, assembly);
1026 g_assert (ref_assembly);
1028 if (assembly_load_method == NULL) {
1029 assembly_load_method = mono_class_get_method_from_name (klass, "DoAssemblyLoad", -1);
1030 g_assert (assembly_load_method);
1033 *params = ref_assembly;
1034 mono_runtime_invoke (assembly_load_method, domain->domain, params, NULL);
1038 * LOCKING: Acquires the domain assemblies lock.
1041 set_domain_search_path (MonoDomain *domain)
1044 MonoAppDomainSetup *setup;
1046 gchar *search_path = NULL;
1049 gchar **pvt_split = NULL;
1050 GError *gerror = NULL;
1051 gint appbaselen = -1;
1054 * We use the low-level domain assemblies lock, since this is called from
1055 * assembly loads hooks, which means this thread might hold the loader lock.
1057 mono_domain_assemblies_lock (domain);
1059 if (!domain->setup) {
1060 mono_domain_assemblies_unlock (domain);
1064 if ((domain->search_path != NULL) && !domain->setup->path_changed) {
1065 mono_domain_assemblies_unlock (domain);
1068 setup = domain->setup;
1069 if (!setup->application_base) {
1070 mono_domain_assemblies_unlock (domain);
1071 return; /* Must set application base to get private path working */
1076 if (setup->private_bin_path) {
1077 search_path = mono_string_to_utf8_checked (setup->private_bin_path, &error);
1078 if (!mono_error_ok (&error)) { /*FIXME maybe we should bubble up the error.*/
1079 g_warning ("Could not decode AppDomain search path since it contains invalid characters");
1080 mono_error_cleanup (&error);
1081 mono_domain_assemblies_unlock (domain);
1086 if (domain->private_bin_path) {
1087 if (search_path == NULL)
1088 search_path = domain->private_bin_path;
1090 gchar *tmp2 = search_path;
1091 search_path = g_strjoin (";", search_path, domain->private_bin_path, NULL);
1098 * As per MSDN documentation, AppDomainSetup.PrivateBinPath contains a list of
1099 * directories relative to ApplicationBase separated by semicolons (see
1100 * http://msdn2.microsoft.com/en-us/library/system.appdomainsetup.privatebinpath.aspx)
1101 * The loop below copes with the fact that some Unix applications may use ':' (or
1102 * System.IO.Path.PathSeparator) as the path search separator. We replace it with
1103 * ';' for the subsequent split.
1105 * The issue was reported in bug #81446
1108 #ifndef TARGET_WIN32
1111 slen = strlen (search_path);
1112 for (i = 0; i < slen; i++)
1113 if (search_path [i] == ':')
1114 search_path [i] = ';';
1117 pvt_split = g_strsplit (search_path, ";", 1000);
1118 g_free (search_path);
1119 for (tmp = pvt_split; *tmp; tmp++, npaths++);
1124 g_strfreev (pvt_split);
1126 * Don't do this because the first time is called, the domain
1127 * setup is not finished.
1129 * domain->search_path = g_malloc (sizeof (char *));
1130 * domain->search_path [0] = NULL;
1132 mono_domain_assemblies_unlock (domain);
1136 if (domain->search_path)
1137 g_strfreev (domain->search_path);
1139 tmp = g_malloc ((npaths + 1) * sizeof (gchar *));
1140 tmp [npaths] = NULL;
1142 *tmp = mono_string_to_utf8_checked (setup->application_base, &error);
1143 if (!mono_error_ok (&error)) {
1144 mono_error_cleanup (&error);
1145 g_strfreev (pvt_split);
1148 mono_domain_assemblies_unlock (domain);
1152 domain->search_path = tmp;
1154 /* FIXME: is this needed? */
1155 if (strncmp (*tmp, "file://", 7) == 0) {
1161 uri = g_strdup_printf ("file:///%s", uri + 7);
1164 uri = mono_escape_uri_string (tmpuri);
1165 *tmp = g_filename_from_uri (uri, NULL, &gerror);
1171 if (gerror != NULL) {
1172 g_warning ("%s\n", gerror->message);
1173 g_error_free (gerror);
1180 for (i = 1; pvt_split && i < npaths; i++) {
1181 if (g_path_is_absolute (pvt_split [i - 1])) {
1182 tmp [i] = g_strdup (pvt_split [i - 1]);
1184 tmp [i] = g_build_filename (tmp [0], pvt_split [i - 1], NULL);
1187 if (strchr (tmp [i], '.')) {
1191 reduced = mono_path_canonicalize (tmp [i]);
1192 if (appbaselen == -1)
1193 appbaselen = strlen (tmp [0]);
1195 if (strncmp (tmp [0], reduced, appbaselen)) {
1198 tmp [i] = g_strdup ("");
1208 if (setup->private_bin_path_probe != NULL) {
1210 tmp [0] = g_strdup ("");
1213 domain->setup->path_changed = FALSE;
1215 g_strfreev (pvt_split);
1217 mono_domain_assemblies_unlock (domain);
1220 #ifdef DISABLE_SHADOW_COPY
1222 mono_is_shadow_copy_enabled (MonoDomain *domain, const gchar *dir_name)
1228 mono_make_shadow_copy (const char *filename)
1230 return (char *) filename;
1234 shadow_copy_sibling (gchar *src, gint srclen, const char *extension, gchar *target, gint targetlen, gint tail_len)
1236 guint16 *orig, *dest;
1237 gboolean copy_result;
1239 strcpy (src + srclen - tail_len, extension);
1241 if (IS_PORTABILITY_CASE) {
1242 gchar *file = mono_portability_find_file (src, TRUE);
1248 } else if (!g_file_test (src, G_FILE_TEST_IS_REGULAR)) {
1252 orig = g_utf8_to_utf16 (src, strlen (src), NULL, NULL, NULL);
1254 strcpy (target + targetlen - tail_len, extension);
1255 dest = g_utf8_to_utf16 (target, strlen (target), NULL, NULL, NULL);
1258 copy_result = CopyFile (orig, dest, FALSE);
1260 /* Fix for bug #556884 - make sure the files have the correct mode so that they can be
1261 * overwritten when updated in their original locations. */
1263 copy_result = SetFileAttributes (dest, FILE_ATTRIBUTE_NORMAL);
1272 get_cstring_hash (const char *str)
1278 if (!str || !str [0])
1283 for (i = 0; i < len; i++) {
1284 h = (h << 5) - h + *p;
1292 * Returned memory is malloc'd. Called must free it
1295 get_shadow_assembly_location_base (MonoDomain *domain, MonoError *error)
1297 MonoAppDomainSetup *setup;
1298 char *cache_path, *appname;
1302 mono_error_init (error);
1304 setup = domain->setup;
1305 if (setup->cache_path != NULL && setup->application_name != NULL) {
1306 cache_path = mono_string_to_utf8_checked (setup->cache_path, error);
1307 if (!mono_error_ok (error))
1309 #ifndef TARGET_WIN32
1312 for (i = strlen (cache_path) - 1; i >= 0; i--)
1313 if (cache_path [i] == '\\')
1314 cache_path [i] = '/';
1318 appname = mono_string_to_utf8_checked (setup->application_name, error);
1319 if (!mono_error_ok (error)) {
1320 g_free (cache_path);
1324 location = g_build_filename (cache_path, appname, "assembly", "shadow", NULL);
1326 g_free (cache_path);
1328 userdir = g_strdup_printf ("%s-mono-cachepath", g_get_user_name ());
1329 location = g_build_filename (g_get_tmp_dir (), userdir, "assembly", "shadow", NULL);
1336 get_shadow_assembly_location (const char *filename, MonoError *error)
1338 gint32 hash = 0, hash2 = 0;
1340 char path_hash [30];
1341 char *bname = g_path_get_basename (filename);
1342 char *dirname = g_path_get_dirname (filename);
1343 char *location, *tmploc;
1344 MonoDomain *domain = mono_domain_get ();
1346 mono_error_init (error);
1348 hash = get_cstring_hash (bname);
1349 hash2 = get_cstring_hash (dirname);
1350 g_snprintf (name_hash, sizeof (name_hash), "%08x", hash);
1351 g_snprintf (path_hash, sizeof (path_hash), "%08x_%08x_%08x", hash ^ hash2, hash2, domain->shadow_serial);
1352 tmploc = get_shadow_assembly_location_base (domain, error);
1353 if (!mono_error_ok (error)) {
1359 location = g_build_filename (tmploc, name_hash, path_hash, bname, NULL);
1367 ensure_directory_exists (const char *filename)
1370 gchar *dir_utf8 = g_path_get_dirname (filename);
1372 gunichar2 *dir_utf16 = NULL;
1375 if (!dir_utf8 || !dir_utf8 [0])
1378 dir_utf16 = g_utf8_to_utf16 (dir_utf8, strlen (dir_utf8), NULL, NULL, NULL);
1386 /* make life easy and only use one directory seperator */
1397 while (*p++ != '\\')
1403 p = wcschr (p, '\\');
1406 retval = _wmkdir (dir_utf16);
1407 if (retval != 0 && errno != EEXIST) {
1420 gchar *dir = g_path_get_dirname (filename);
1424 if (!dir || !dir [0]) {
1429 if (stat (dir, &sbuf) == 0 && S_ISDIR (sbuf.st_mode)) {
1439 p = strchr (p, '/');
1442 retval = mkdir (dir, 0777);
1443 if (retval != 0 && errno != EEXIST) {
1458 private_file_needs_copying (const char *src, struct stat *sbuf_src, char *dest)
1460 struct stat sbuf_dest;
1462 gchar *real_src = mono_portability_find_file (src, TRUE);
1465 stat_src = (gchar*)src;
1467 stat_src = real_src;
1469 if (stat (stat_src, sbuf_src) == -1) {
1470 time_t tnow = time (NULL);
1475 memset (sbuf_src, 0, sizeof (*sbuf_src));
1476 sbuf_src->st_mtime = tnow;
1477 sbuf_src->st_atime = tnow;
1484 if (stat (dest, &sbuf_dest) == -1)
1487 if (sbuf_src->st_size == sbuf_dest.st_size &&
1488 sbuf_src->st_mtime == sbuf_dest.st_mtime)
1495 shadow_copy_create_ini (const char *shadow, const char *filename)
1505 dir_name = g_path_get_dirname (shadow);
1506 ini_file = g_build_filename (dir_name, "__AssemblyInfo__.ini", NULL);
1508 if (g_file_test (ini_file, G_FILE_TEST_IS_REGULAR)) {
1513 u16_ini = g_utf8_to_utf16 (ini_file, strlen (ini_file), NULL, NULL, NULL);
1518 handle = CreateFile (u16_ini, GENERIC_WRITE, FILE_SHARE_READ|FILE_SHARE_WRITE,
1519 NULL, CREATE_NEW, FileAttributes_Normal, NULL);
1521 if (handle == INVALID_HANDLE_VALUE) {
1525 full_path = mono_path_resolve_symlinks (filename);
1526 result = WriteFile (handle, full_path, strlen (full_path), &n, NULL);
1528 CloseHandle (handle);
1533 mono_is_shadow_copy_enabled (MonoDomain *domain, const gchar *dir_name)
1536 MonoAppDomainSetup *setup;
1539 gchar **directories;
1540 gchar *shadow_status_string;
1542 gboolean shadow_enabled;
1543 gboolean found = FALSE;
1548 setup = domain->setup;
1549 if (setup == NULL || setup->shadow_copy_files == NULL)
1552 shadow_status_string = mono_string_to_utf8_checked (setup->shadow_copy_files, &error);
1553 if (!mono_error_ok (&error)) {
1554 mono_error_cleanup (&error);
1557 shadow_enabled = !g_ascii_strncasecmp (shadow_status_string, "true", 4);
1558 g_free (shadow_status_string);
1560 if (!shadow_enabled)
1563 if (setup->shadow_copy_directories == NULL)
1566 /* Is dir_name a shadow_copy destination already? */
1567 base_dir = get_shadow_assembly_location_base (domain, &error);
1568 if (!mono_error_ok (&error)) {
1569 mono_error_cleanup (&error);
1573 if (strstr (dir_name, base_dir)) {
1579 all_dirs = mono_string_to_utf8_checked (setup->shadow_copy_directories, &error);
1580 if (!mono_error_ok (&error)) {
1581 mono_error_cleanup (&error);
1585 directories = g_strsplit (all_dirs, G_SEARCHPATH_SEPARATOR_S, 1000);
1586 dir_ptr = directories;
1588 if (**dir_ptr != '\0' && !strcmp (*dir_ptr, dir_name)) {
1594 g_strfreev (directories);
1600 This function raises exceptions so it can cause as sorts of nasty stuff if called
1601 while holding a lock.
1602 FIXME bubble up the error instead of raising it here
1605 mono_make_shadow_copy (const char *filename)
1608 gchar *sibling_source, *sibling_target;
1609 gint sibling_source_len, sibling_target_len;
1610 guint16 *orig, *dest;
1613 gboolean copy_result;
1615 struct stat src_sbuf;
1616 struct utimbuf utbuf;
1617 char *dir_name = g_path_get_dirname (filename);
1618 MonoDomain *domain = mono_domain_get ();
1621 set_domain_search_path (domain);
1623 if (!mono_is_shadow_copy_enabled (domain, dir_name)) {
1625 return (char *) filename;
1628 /* Is dir_name a shadow_copy destination already? */
1629 shadow_dir = get_shadow_assembly_location_base (domain, &error);
1630 if (!mono_error_ok (&error)) {
1631 mono_error_cleanup (&error);
1633 exc = mono_get_exception_execution_engine ("Failed to create shadow copy (invalid characters in shadow directory name).");
1634 mono_raise_exception (exc);
1637 if (strstr (dir_name, shadow_dir)) {
1638 g_free (shadow_dir);
1640 return (char *) filename;
1642 g_free (shadow_dir);
1645 shadow = get_shadow_assembly_location (filename, &error);
1646 if (!mono_error_ok (&error)) {
1647 mono_error_cleanup (&error);
1648 exc = mono_get_exception_execution_engine ("Failed to create shadow copy (invalid characters in file name).");
1649 mono_raise_exception (exc);
1652 if (ensure_directory_exists (shadow) == FALSE) {
1654 exc = mono_get_exception_execution_engine ("Failed to create shadow copy (ensure directory exists).");
1655 mono_raise_exception (exc);
1658 if (!private_file_needs_copying (filename, &src_sbuf, shadow))
1659 return (char*) shadow;
1661 orig = g_utf8_to_utf16 (filename, strlen (filename), NULL, NULL, NULL);
1662 dest = g_utf8_to_utf16 (shadow, strlen (shadow), NULL, NULL, NULL);
1665 /* Fix for bug #17066 - make sure we can read the file. if not then don't error but rather
1666 * let the assembly fail to load. This ensures you can do Type.GetType("NS.T, NonExistantAssembly)
1667 * and not have it runtime error" */
1668 attrs = GetFileAttributes (orig);
1669 if (attrs == INVALID_FILE_ATTRIBUTES) {
1671 return (char *)filename;
1674 copy_result = CopyFile (orig, dest, FALSE);
1676 /* Fix for bug #556884 - make sure the files have the correct mode so that they can be
1677 * overwritten when updated in their original locations. */
1679 copy_result = SetFileAttributes (dest, FILE_ATTRIBUTE_NORMAL);
1684 if (copy_result == FALSE) {
1686 exc = mono_get_exception_execution_engine ("Failed to create shadow copy (CopyFile).");
1687 mono_raise_exception (exc);
1690 /* attempt to copy .mdb, .config if they exist */
1691 sibling_source = g_strconcat (filename, ".config", NULL);
1692 sibling_source_len = strlen (sibling_source);
1693 sibling_target = g_strconcat (shadow, ".config", NULL);
1694 sibling_target_len = strlen (sibling_target);
1696 copy_result = shadow_copy_sibling (sibling_source, sibling_source_len, ".mdb", sibling_target, sibling_target_len, 7);
1697 if (copy_result == TRUE)
1698 copy_result = shadow_copy_sibling (sibling_source, sibling_source_len, ".config", sibling_target, sibling_target_len, 7);
1700 g_free (sibling_source);
1701 g_free (sibling_target);
1703 if (copy_result == FALSE) {
1705 exc = mono_get_exception_execution_engine ("Failed to create shadow copy of sibling data (CopyFile).");
1706 mono_raise_exception (exc);
1709 /* Create a .ini file containing the original assembly location */
1710 if (!shadow_copy_create_ini (shadow, filename)) {
1712 exc = mono_get_exception_execution_engine ("Failed to create shadow copy .ini file.");
1713 mono_raise_exception (exc);
1716 utbuf.actime = src_sbuf.st_atime;
1717 utbuf.modtime = src_sbuf.st_mtime;
1718 utime (shadow, &utbuf);
1722 #endif /* DISABLE_SHADOW_COPY */
1725 mono_domain_from_appdomain (MonoAppDomain *appdomain)
1727 if (appdomain == NULL)
1730 return appdomain->data;
1734 try_load_from (MonoAssembly **assembly, const gchar *path1, const gchar *path2,
1735 const gchar *path3, const gchar *path4,
1736 gboolean refonly, gboolean is_private)
1739 gboolean found = FALSE;
1742 fullpath = g_build_filename (path1, path2, path3, path4, NULL);
1744 if (IS_PORTABILITY_SET) {
1745 gchar *new_fullpath = mono_portability_find_file (fullpath, TRUE);
1748 fullpath = new_fullpath;
1752 found = g_file_test (fullpath, G_FILE_TEST_IS_REGULAR);
1755 *assembly = mono_assembly_open_full (fullpath, NULL, refonly);
1758 return (*assembly != NULL);
1761 static MonoAssembly *
1762 real_load (gchar **search_path, const gchar *culture, const gchar *name, gboolean refonly)
1764 MonoAssembly *result = NULL;
1767 const gchar *local_culture;
1769 gboolean is_private = FALSE;
1771 if (!culture || *culture == '\0') {
1774 local_culture = culture;
1777 filename = g_strconcat (name, ".dll", NULL);
1778 len = strlen (filename);
1780 for (path = search_path; *path; path++) {
1781 if (**path == '\0') {
1783 continue; /* Ignore empty ApplicationBase */
1786 /* See test cases in bug #58992 and bug #57710 */
1787 /* 1st try: [culture]/[name].dll (culture may be empty) */
1788 strcpy (filename + len - 4, ".dll");
1789 if (try_load_from (&result, *path, local_culture, "", filename, refonly, is_private))
1792 /* 2nd try: [culture]/[name].exe (culture may be empty) */
1793 strcpy (filename + len - 4, ".exe");
1794 if (try_load_from (&result, *path, local_culture, "", filename, refonly, is_private))
1797 /* 3rd try: [culture]/[name]/[name].dll (culture may be empty) */
1798 strcpy (filename + len - 4, ".dll");
1799 if (try_load_from (&result, *path, local_culture, name, filename, refonly, is_private))
1802 /* 4th try: [culture]/[name]/[name].exe (culture may be empty) */
1803 strcpy (filename + len - 4, ".exe");
1804 if (try_load_from (&result, *path, local_culture, name, filename, refonly, is_private))
1813 * Try loading the assembly from ApplicationBase and PrivateBinPath
1814 * and then from assemblies_path if any.
1815 * LOCKING: This is called from the assembly loading code, which means the caller
1816 * might hold the loader lock. Thus, this function must not acquire the domain lock.
1818 static MonoAssembly *
1819 mono_domain_assembly_preload (MonoAssemblyName *aname,
1820 gchar **assemblies_path,
1823 MonoDomain *domain = mono_domain_get ();
1824 MonoAssembly *result = NULL;
1825 gboolean refonly = GPOINTER_TO_UINT (user_data);
1827 set_domain_search_path (domain);
1829 if (domain->search_path && domain->search_path [0] != NULL) {
1830 result = real_load (domain->search_path, aname->culture, aname->name, refonly);
1833 if (result == NULL && assemblies_path && assemblies_path [0] != NULL) {
1834 result = real_load (assemblies_path, aname->culture, aname->name, refonly);
1841 * Check whenever a given assembly was already loaded in the current appdomain.
1843 static MonoAssembly *
1844 mono_domain_assembly_search (MonoAssemblyName *aname,
1847 MonoDomain *domain = mono_domain_get ();
1850 gboolean refonly = GPOINTER_TO_UINT (user_data);
1852 mono_domain_assemblies_lock (domain);
1853 for (tmp = domain->domain_assemblies; tmp; tmp = tmp->next) {
1855 /* Dynamic assemblies can't match here in MS.NET */
1856 if (ass->dynamic || refonly != ass->ref_only || !mono_assembly_names_equal (aname, &ass->aname))
1859 mono_domain_assemblies_unlock (domain);
1862 mono_domain_assemblies_unlock (domain);
1867 MonoReflectionAssembly *
1868 ves_icall_System_Reflection_Assembly_LoadFrom (MonoString *fname, MonoBoolean refOnly)
1870 MonoDomain *domain = mono_domain_get ();
1871 char *name, *filename;
1872 MonoImageOpenStatus status = MONO_IMAGE_OK;
1875 MONO_ARCH_SAVE_REGS;
1877 if (fname == NULL) {
1878 MonoException *exc = mono_get_exception_argument_null ("assemblyFile");
1879 mono_raise_exception (exc);
1882 name = filename = mono_string_to_utf8 (fname);
1884 ass = mono_assembly_open_full (filename, &status, refOnly);
1889 if (status == MONO_IMAGE_IMAGE_INVALID)
1890 exc = mono_get_exception_bad_image_format2 (NULL, fname);
1892 exc = mono_get_exception_file_not_found2 (NULL, fname);
1894 mono_raise_exception (exc);
1899 return mono_assembly_get_object (domain, ass);
1902 MonoReflectionAssembly *
1903 ves_icall_System_AppDomain_LoadAssemblyRaw (MonoAppDomain *ad,
1904 MonoArray *raw_assembly,
1905 MonoArray *raw_symbol_store, MonoObject *evidence,
1906 MonoBoolean refonly)
1909 MonoReflectionAssembly *refass = NULL;
1910 MonoDomain *domain = ad->data;
1911 MonoImageOpenStatus status;
1912 guint32 raw_assembly_len = mono_array_length (raw_assembly);
1913 MonoImage *image = mono_image_open_from_data_full (mono_array_addr (raw_assembly, gchar, 0), raw_assembly_len, TRUE, NULL, refonly);
1916 mono_raise_exception (mono_get_exception_bad_image_format (""));
1920 if (raw_symbol_store != NULL)
1921 mono_debug_open_image_from_memory (image, mono_array_addr (raw_symbol_store, guint8, 0), mono_array_length (raw_symbol_store));
1923 ass = mono_assembly_load_from_full (image, "", &status, refonly);
1927 mono_image_close (image);
1928 mono_raise_exception (mono_get_exception_bad_image_format (""));
1932 refass = mono_assembly_get_object (domain, ass);
1933 MONO_OBJECT_SETREF (refass, evidence, evidence);
1937 MonoReflectionAssembly *
1938 ves_icall_System_AppDomain_LoadAssembly (MonoAppDomain *ad, MonoString *assRef, MonoObject *evidence, MonoBoolean refOnly)
1940 MonoDomain *domain = ad->data;
1941 MonoImageOpenStatus status = MONO_IMAGE_OK;
1943 MonoAssemblyName aname;
1944 MonoReflectionAssembly *refass = NULL;
1948 MONO_ARCH_SAVE_REGS;
1950 g_assert (assRef != NULL);
1952 name = mono_string_to_utf8 (assRef);
1953 parsed = mono_assembly_name_parse (name, &aname);
1957 /* This is a parse error... */
1959 refass = mono_try_assembly_resolve (domain, assRef, refOnly);
1963 ass = mono_assembly_load_full_nosearch (&aname, NULL, &status, refOnly);
1964 mono_assembly_name_free (&aname);
1967 /* MS.NET doesn't seem to call the assembly resolve handler for refonly assemblies */
1969 refass = mono_try_assembly_resolve (domain, assRef, refOnly);
1978 refass = mono_assembly_get_object (domain, ass);
1980 MONO_OBJECT_SETREF (refass, evidence, evidence);
1985 ves_icall_System_AppDomain_InternalUnload (gint32 domain_id)
1987 MonoDomain * domain = mono_domain_get_by_id (domain_id);
1989 MONO_ARCH_SAVE_REGS;
1991 if (NULL == domain) {
1992 MonoException *exc = mono_get_exception_execution_engine ("Failed to unload domain, domain id not found");
1993 mono_raise_exception (exc);
1996 if (domain == mono_get_root_domain ()) {
1997 mono_raise_exception (mono_get_exception_cannot_unload_appdomain ("The default appdomain can not be unloaded."));
2002 * Unloading seems to cause problems when running NUnit/NAnt, hence
2005 if (g_getenv ("MONO_NO_UNLOAD"))
2007 #ifdef __native_client__
2011 mono_domain_unload (domain);
2015 ves_icall_System_AppDomain_InternalIsFinalizingForUnload (gint32 domain_id)
2017 MonoDomain *domain = mono_domain_get_by_id (domain_id);
2022 return mono_domain_is_unloading (domain);
2026 ves_icall_System_AppDomain_ExecuteAssembly (MonoAppDomain *ad,
2027 MonoReflectionAssembly *refass, MonoArray *args)
2032 MONO_ARCH_SAVE_REGS;
2035 image = refass->assembly->image;
2038 method = mono_get_method (image, mono_image_get_entry_point (image), NULL);
2041 g_error ("No entry point method found in %s", image->name);
2044 args = (MonoArray *) mono_array_new (ad->data, mono_defaults.string_class, 0);
2046 return mono_runtime_exec_main (method, (MonoArray *)args, NULL);
2050 ves_icall_System_AppDomain_GetIDFromDomain (MonoAppDomain * ad)
2052 MONO_ARCH_SAVE_REGS;
2054 return ad->data->domain_id;
2058 ves_icall_System_AppDomain_InternalSetDomain (MonoAppDomain *ad)
2060 MonoDomain *old_domain = mono_domain_get();
2062 MONO_ARCH_SAVE_REGS;
2064 if (!mono_domain_set (ad->data, FALSE))
2065 mono_raise_exception (mono_get_exception_appdomain_unloaded ());
2067 return old_domain->domain;
2071 ves_icall_System_AppDomain_InternalSetDomainByID (gint32 domainid)
2073 MonoDomain *current_domain = mono_domain_get ();
2074 MonoDomain *domain = mono_domain_get_by_id (domainid);
2076 MONO_ARCH_SAVE_REGS;
2078 if (!domain || !mono_domain_set (domain, FALSE))
2079 mono_raise_exception (mono_get_exception_appdomain_unloaded ());
2081 return current_domain->domain;
2085 ves_icall_System_AppDomain_InternalPushDomainRef (MonoAppDomain *ad)
2087 MONO_ARCH_SAVE_REGS;
2089 mono_thread_push_appdomain_ref (ad->data);
2093 ves_icall_System_AppDomain_InternalPushDomainRefByID (gint32 domain_id)
2095 MonoDomain *domain = mono_domain_get_by_id (domain_id);
2097 MONO_ARCH_SAVE_REGS;
2101 * Raise an exception to prevent the managed code from executing a pop
2104 mono_raise_exception (mono_get_exception_appdomain_unloaded ());
2106 mono_thread_push_appdomain_ref (domain);
2110 ves_icall_System_AppDomain_InternalPopDomainRef (void)
2112 MONO_ARCH_SAVE_REGS;
2114 mono_thread_pop_appdomain_ref ();
2118 ves_icall_System_AppDomain_InternalGetContext ()
2120 MONO_ARCH_SAVE_REGS;
2122 return mono_context_get ();
2126 ves_icall_System_AppDomain_InternalGetDefaultContext ()
2128 MONO_ARCH_SAVE_REGS;
2130 return mono_domain_get ()->default_context;
2134 ves_icall_System_AppDomain_InternalSetContext (MonoAppContext *mc)
2136 MonoAppContext *old_context = mono_context_get ();
2138 MONO_ARCH_SAVE_REGS;
2140 mono_context_set (mc);
2146 ves_icall_System_AppDomain_InternalGetProcessGuid (MonoString* newguid)
2148 MonoDomain* mono_root_domain = mono_get_root_domain ();
2149 mono_domain_lock (mono_root_domain);
2150 if (process_guid_set) {
2151 mono_domain_unlock (mono_root_domain);
2152 return mono_string_new_utf16 (mono_domain_get (), process_guid, sizeof(process_guid)/2);
2154 memcpy (process_guid, mono_string_chars(newguid), sizeof(process_guid));
2155 process_guid_set = TRUE;
2156 mono_domain_unlock (mono_root_domain);
2161 mono_domain_is_unloading (MonoDomain *domain)
2163 if (domain->state == MONO_APPDOMAIN_UNLOADING || domain->state == MONO_APPDOMAIN_UNLOADED)
2170 clear_cached_vtable (MonoVTable *vtable)
2172 MonoClass *klass = vtable->klass;
2173 MonoDomain *domain = vtable->domain;
2174 MonoClassRuntimeInfo *runtime_info;
2177 runtime_info = klass->runtime_info;
2178 if (runtime_info && runtime_info->max_domain >= domain->domain_id)
2179 runtime_info->domain_vtables [domain->domain_id] = NULL;
2180 if (klass->has_static_refs && (data = mono_vtable_get_static_field_data (vtable)))
2181 mono_gc_free_fixed (data);
2184 static G_GNUC_UNUSED void
2185 zero_static_data (MonoVTable *vtable)
2187 MonoClass *klass = vtable->klass;
2190 if (klass->has_static_refs && (data = mono_vtable_get_static_field_data (vtable)))
2191 mono_gc_bzero (data, mono_class_data_size (klass));
2194 typedef struct unload_data {
2197 char *failure_reason;
2202 unload_data_unref (unload_data *data)
2206 mono_atomic_load_acquire (count, gint32, &data->refcount);
2207 g_assert (count >= 1 && count <= 2);
2212 } while (InterlockedCompareExchange (&data->refcount, count, count - 1) != count);
2216 deregister_reflection_info_roots_from_list (MonoImage *image)
2218 GSList *list = image->reflection_info_unregister_classes;
2221 MonoClass *class = list->data;
2223 mono_class_free_ref_info (class);
2228 image->reflection_info_unregister_classes = NULL;
2232 deregister_reflection_info_roots (MonoDomain *domain)
2236 mono_domain_assemblies_lock (domain);
2237 for (list = domain->domain_assemblies; list; list = list->next) {
2238 MonoAssembly *assembly = list->data;
2239 MonoImage *image = assembly->image;
2243 * No need to take the image lock here since dynamic images are appdomain bound and
2244 * at this point the mutator is gone. Taking the image lock here would mean
2245 * promoting it from a simple lock to a complex lock, which we better avoid if
2249 deregister_reflection_info_roots_from_list (image);
2251 for (i = 0; i < image->module_count; ++i) {
2252 MonoImage *module = image->modules [i];
2253 if (module && module->dynamic)
2254 deregister_reflection_info_roots_from_list (module);
2257 mono_domain_assemblies_unlock (domain);
2260 static guint32 WINAPI
2261 unload_thread_main (void *arg)
2263 unload_data *data = (unload_data*)arg;
2264 MonoDomain *domain = data->domain;
2268 /* Have to attach to the runtime so shutdown can wait for this thread */
2269 /* Force it to be attached to avoid racing during shutdown. */
2270 thread = mono_thread_attach_full (mono_get_root_domain (), TRUE);
2273 * FIXME: Abort our parent thread last, so we can return a failure
2274 * indication if aborting times out.
2276 if (!mono_threads_abort_appdomain_threads (domain, -1)) {
2277 data->failure_reason = g_strdup_printf ("Aborting of threads in domain %s timed out.", domain->friendly_name);
2281 if (!mono_thread_pool_remove_domain_jobs (domain, -1)) {
2282 data->failure_reason = g_strdup_printf ("Cleanup of threadpool jobs of domain %s timed out.", domain->friendly_name);
2286 /* Finalize all finalizable objects in the doomed appdomain */
2287 if (!mono_domain_finalize (domain, -1)) {
2288 data->failure_reason = g_strdup_printf ("Finalization of domain %s timed out.", domain->friendly_name);
2292 /* Clear references to our vtables in class->runtime_info.
2293 * We also hold the loader lock because we're going to change
2294 * class->runtime_info.
2297 mono_loader_lock ();
2298 mono_domain_lock (domain);
2301 * We need to make sure that we don't have any remsets
2302 * pointing into static data of the to-be-freed domain because
2303 * at the next collections they would be invalid. So what we
2304 * do is we first zero all static data and then do a minor
2305 * collection. Because all references in the static data will
2306 * now be null we won't do any unnecessary copies and after
2307 * the collection there won't be any more remsets.
2309 for (i = 0; i < domain->class_vtable_array->len; ++i)
2310 zero_static_data (g_ptr_array_index (domain->class_vtable_array, i));
2311 mono_gc_collect (0);
2313 for (i = 0; i < domain->class_vtable_array->len; ++i)
2314 clear_cached_vtable (g_ptr_array_index (domain->class_vtable_array, i));
2315 deregister_reflection_info_roots (domain);
2317 mono_assembly_cleanup_domain_bindings (domain->domain_id);
2319 mono_domain_unlock (domain);
2320 mono_loader_unlock ();
2322 mono_threads_clear_cached_culture (domain);
2324 domain->state = MONO_APPDOMAIN_UNLOADED;
2326 /* printf ("UNLOADED %s.\n", domain->friendly_name); */
2328 /* remove from the handle table the items related to this domain */
2329 mono_gchandle_free_domain (domain);
2331 mono_domain_free (domain, FALSE);
2333 mono_gc_collect (mono_gc_max_generation ());
2335 mono_atomic_store_release (&data->done, TRUE);
2336 unload_data_unref (data);
2337 mono_thread_detach (thread);
2341 mono_atomic_store_release (&data->done, TRUE);
2342 unload_data_unref (data);
2343 mono_thread_detach (thread);
2348 * mono_domain_unload:
2349 * @domain: The domain to unload
2351 * Unloads an appdomain. Follows the process outlined in the comment
2352 * for mono_domain_try_unload.
2355 mono_domain_unload (MonoDomain *domain)
2357 MonoObject *exc = NULL;
2358 mono_domain_try_unload (domain, &exc);
2360 mono_raise_exception ((MonoException*)exc);
2364 * mono_domain_unload:
2365 * @domain: The domain to unload
2366 * @exc: Exception information
2368 * Unloads an appdomain. Follows the process outlined in:
2369 * http://blogs.gotdotnet.com/cbrumme
2371 * If doing things the 'right' way is too hard or complex, we do it the
2372 * 'simple' way, which means do everything needed to avoid crashes and
2373 * memory leaks, but not much else.
2375 * It is required to pass a valid reference to the exc argument, upon return
2376 * from this function *exc will be set to the exception thrown, if any.
2378 * If this method is not called from an icall (embedded scenario for instance),
2379 * it must not be called with any managed frames on the stack, since the unload
2380 * process could end up trying to abort the current thread.
2383 mono_domain_try_unload (MonoDomain *domain, MonoObject **exc)
2385 HANDLE thread_handle;
2387 MonoAppDomainState prev_state;
2389 unload_data *thread_data;
2390 MonoDomain *caller_domain = mono_domain_get ();
2392 /* printf ("UNLOAD STARTING FOR %s (%p) IN THREAD 0x%x.\n", domain->friendly_name, domain, GetCurrentThreadId ()); */
2394 /* Atomically change our state to UNLOADING */
2395 prev_state = InterlockedCompareExchange ((gint32*)&domain->state,
2396 MONO_APPDOMAIN_UNLOADING_START,
2397 MONO_APPDOMAIN_CREATED);
2398 if (prev_state != MONO_APPDOMAIN_CREATED) {
2399 switch (prev_state) {
2400 case MONO_APPDOMAIN_UNLOADING_START:
2401 case MONO_APPDOMAIN_UNLOADING:
2402 *exc = (MonoObject *) mono_get_exception_cannot_unload_appdomain ("Appdomain is already being unloaded.");
2404 case MONO_APPDOMAIN_UNLOADED:
2405 *exc = (MonoObject *) mono_get_exception_cannot_unload_appdomain ("Appdomain is already unloaded.");
2408 g_warning ("Invalid appdomain state %d", prev_state);
2409 g_assert_not_reached ();
2413 mono_domain_set (domain, FALSE);
2414 /* Notify OnDomainUnload listeners */
2415 method = mono_class_get_method_from_name (domain->domain->mbr.obj.vtable->klass, "DoDomainUnload", -1);
2418 mono_runtime_invoke (method, domain->domain, NULL, exc);
2420 /* Roll back the state change */
2421 domain->state = MONO_APPDOMAIN_CREATED;
2422 mono_domain_set (caller_domain, FALSE);
2425 mono_domain_set (caller_domain, FALSE);
2427 thread_data = g_new0 (unload_data, 1);
2428 thread_data->domain = domain;
2429 thread_data->failure_reason = NULL;
2430 thread_data->done = FALSE;
2431 thread_data->refcount = 2; /*Must be 2: unload thread + initiator */
2433 /*The managed callback finished successfully, now we start tearing down the appdomain*/
2434 domain->state = MONO_APPDOMAIN_UNLOADING;
2436 * First we create a separate thread for unloading, since
2437 * we might have to abort some threads, including the current one.
2440 * If we create a non-suspended thread, the runtime will hang.
2442 * http://bugzilla.ximian.com/show_bug.cgi?id=27663
2445 thread_handle = mono_create_thread (NULL, 0, unload_thread_main, &thread_data, 0, &tid);
2447 thread_handle = mono_create_thread (NULL, 0, (LPTHREAD_START_ROUTINE)unload_thread_main, thread_data, CREATE_SUSPENDED, &tid);
2448 if (thread_handle == NULL) {
2451 ResumeThread (thread_handle);
2454 /* Wait for the thread */
2455 while (!thread_data->done && WaitForSingleObjectEx (thread_handle, INFINITE, TRUE) == WAIT_IO_COMPLETION) {
2456 if (mono_thread_internal_has_appdomain_ref (mono_thread_internal_current (), domain) && (mono_thread_interruption_requested ())) {
2457 /* The unload thread tries to abort us */
2458 /* The icall wrapper will execute the abort */
2459 CloseHandle (thread_handle);
2460 unload_data_unref (thread_data);
2464 CloseHandle (thread_handle);
2466 if (thread_data->failure_reason) {
2467 /* Roll back the state change */
2468 domain->state = MONO_APPDOMAIN_CREATED;
2470 g_warning ("%s", thread_data->failure_reason);
2472 *exc = (MonoObject *) mono_get_exception_cannot_unload_appdomain (thread_data->failure_reason);
2474 g_free (thread_data->failure_reason);
2475 thread_data->failure_reason = NULL;
2478 unload_data_unref (thread_data);