2 * appdomain.c: AppDomain functions
5 * Dietmar Maurer (dietmar@ximian.com)
7 * Gonzalo Paniagua Javier (gonzalo@ximian.com)
9 * (c) 2001-2003 Ximian, Inc. (http://www.ximian.com)
16 #include <mono/os/gc_wrapper.h>
18 #include <mono/metadata/object.h>
19 #include <mono/metadata/appdomain.h>
20 #include <mono/metadata/assembly.h>
21 #include <mono/metadata/exception.h>
22 #include <mono/metadata/threads.h>
23 #include <mono/metadata/socket-io.h>
24 #include <mono/metadata/tabledefs.h>
25 #include <mono/metadata/gc-internal.h>
26 #include <mono/metadata/marshal.h>
28 CRITICAL_SECTION mono_delegate_section;
30 static gunichar2 process_guid [36];
31 static gboolean process_guid_set = FALSE;
34 mono_domain_assembly_preload (MonoAssemblyName *aname,
35 gchar **assemblies_path,
39 mono_domain_fire_assembly_load (MonoAssembly *assembly, gpointer user_data);
42 look_for_method_by_name (MonoClass *klass, const gchar *name);
45 mono_domain_unload (MonoDomain *domain);
49 * @domain: domain returned by mono_init ()
51 * Initialize the core AppDomain: this function will run also some
52 * IL initialization code, so it needs the execution engine to be fully
55 * AppDomain.SetupInformation is set up in mono_runtime_exec_main, where
56 * we know the entry_assembly.
60 mono_runtime_init (MonoDomain *domain, MonoThreadStartCB start_cb,
61 MonoThreadAttachCB attach_cb)
63 MonoAppDomainSetup *setup;
69 mono_install_assembly_preload_hook (mono_domain_assembly_preload, NULL);
70 mono_install_assembly_load_hook (mono_domain_fire_assembly_load, NULL);
71 mono_install_lookup_dynamic_token (mono_reflection_lookup_dynamic_token);
73 class = mono_class_from_name (mono_defaults.corlib, "System", "AppDomainSetup");
74 setup = (MonoAppDomainSetup *) mono_object_new (domain, class);
76 class = mono_class_from_name (mono_defaults.corlib, "System", "AppDomain");
77 ad = (MonoAppDomain *) mono_object_new (domain, class);
80 domain->setup = setup;
82 InitializeCriticalSection (&mono_delegate_section);
84 mono_context_init (domain);
85 mono_context_set (domain->default_context);
87 mono_thread_init (start_cb, attach_cb);
89 /* GC init has to happen after thread init */
98 mono_context_init (MonoDomain *domain)
101 MonoAppContext *context;
103 class = mono_class_from_name (mono_defaults.corlib, "System.Runtime.Remoting.Contexts", "Context");
104 context = (MonoAppContext *) mono_object_new (domain, class);
105 context->domain_id = domain->domain_id;
106 context->context_id = 0;
107 domain->default_context = context;
110 /* This must not be called while there are still running threads executing
114 mono_runtime_cleanup (MonoDomain *domain)
116 /* This ends up calling any pending pending (for at most 2 seconds) */
119 mono_network_cleanup ();
122 static MonoDomainFunc quit_function = NULL;
125 mono_runtime_install_cleanup (MonoDomainFunc func)
127 quit_function = func;
133 if (quit_function != NULL)
134 quit_function (mono_root_domain, NULL);
138 mono_domain_has_type_resolve (MonoDomain *domain)
140 static MonoClassField *field = NULL;
144 MonoClass *klass = mono_defaults.appdomain_class;
147 for (i = 0; i < klass->field.count; ++i)
148 if (strcmp (klass->fields [i].name, "TypeResolve") == 0)
149 field = &klass->fields [i];
153 mono_field_get_value ((MonoObject*)(domain->domain), field, &o);
157 MonoReflectionAssembly *
158 mono_domain_try_type_resolve (MonoDomain *domain, char *name, MonoObject *tb)
162 static MonoMethod *method = NULL;
164 g_assert (domain != NULL && ((name != NULL) || (tb != NULL)));
166 if (method == NULL) {
167 klass = domain->domain->mbr.obj.vtable->klass;
170 method = look_for_method_by_name (klass, "DoTypeResolve");
171 if (method == NULL) {
172 g_warning ("Method AppDomain.DoTypeResolve not found.\n");
178 *params = (MonoObject*)mono_string_new (mono_domain_get (), name);
181 return (MonoReflectionAssembly *) mono_runtime_invoke (method, domain->domain, params, NULL);
187 * Set the current appdomain to @domain. If @force is set, set it even
188 * if it is being unloaded.
191 * - FALSE if the domain is being unloaded
194 mono_domain_set (MonoDomain *domain, gboolean force)
196 if (!force && (domain->state == MONO_APPDOMAIN_UNLOADING || domain->state == MONO_APPDOMAIN_UNLOADED))
199 mono_domain_set_internal (domain);
205 ves_icall_System_AppDomainSetup_InitAppDomainSetup (MonoAppDomainSetup *setup)
207 MonoDomain* domain = mono_domain_get ();
208 MonoAssembly *assembly;
210 gchar *config_suffix;
214 if (!domain->entry_assembly)
215 assembly = mono_root_domain->entry_assembly;
217 assembly = domain->entry_assembly;
221 setup->application_base = mono_string_new (domain, assembly->basedir);
223 config_suffix = g_strconcat (assembly->aname.name, ".exe.config", NULL);
224 str = g_build_filename (assembly->basedir, config_suffix, NULL);
225 g_free (config_suffix);
226 setup->configuration_file = mono_string_new (domain, str);
231 ves_icall_System_AppDomain_GetData (MonoAppDomain *ad, MonoString *name)
233 MonoDomain *add = ad->data;
239 g_assert (ad != NULL);
240 g_assert (name != NULL);
242 str = mono_string_to_utf8 (name);
244 mono_domain_lock (add);
246 if (!strcmp (str, "APPBASE"))
247 o = (MonoObject *)add->setup->application_base;
248 else if (!strcmp (str, "APP_CONFIG_FILE"))
249 o = (MonoObject *)add->setup->configuration_file;
250 else if (!strcmp (str, "DYNAMIC_BASE"))
251 o = (MonoObject *)add->setup->dynamic_base;
252 else if (!strcmp (str, "APP_NAME"))
253 o = (MonoObject *)add->setup->application_name;
254 else if (!strcmp (str, "CACHE_BASE"))
255 o = (MonoObject *)add->setup->cache_path;
256 else if (!strcmp (str, "PRIVATE_BINPATH"))
257 o = (MonoObject *)add->setup->private_bin_path;
258 else if (!strcmp (str, "BINPATH_PROBE_ONLY"))
259 o = (MonoObject *)add->setup->private_bin_path_probe;
260 else if (!strcmp (str, "SHADOW_COPY_DIRS"))
261 o = (MonoObject *)add->setup->shadow_copy_directories;
262 else if (!strcmp (str, "FORCE_CACHE_INSTALL"))
263 o = (MonoObject *)add->setup->shadow_copy_files;
265 o = mono_g_hash_table_lookup (add->env, name);
267 mono_domain_unlock (add);
277 ves_icall_System_AppDomain_SetData (MonoAppDomain *ad, MonoString *name, MonoObject *data)
279 MonoDomain *add = ad->data;
283 g_assert (ad != NULL);
284 g_assert (name != NULL);
286 mono_domain_lock (add);
288 mono_g_hash_table_insert (add->env, name, data);
290 mono_domain_unlock (add);
294 ves_icall_System_AppDomain_getSetup (MonoAppDomain *ad)
298 g_assert (ad != NULL);
299 g_assert (ad->data != NULL);
301 return ad->data->setup;
305 ves_icall_System_AppDomain_getFriendlyName (MonoAppDomain *ad)
309 g_assert (ad != NULL);
310 g_assert (ad->data != NULL);
312 return mono_string_new (ad->data, ad->data->friendly_name);
316 ves_icall_System_AppDomain_getCurDomain ()
318 MonoDomain *add = mono_domain_get ();
326 ves_icall_System_AppDomain_createDomain (MonoString *friendly_name, MonoAppDomainSetup *setup)
328 /*MonoDomain *domain = mono_domain_get (); */
335 adclass = mono_class_from_name (mono_defaults.corlib, "System", "AppDomain");
337 /* FIXME: pin all those objects */
338 data = mono_domain_create();
340 ad = (MonoAppDomain *) mono_object_new (data, adclass);
344 data->friendly_name = mono_string_to_utf8 (friendly_name);
346 mono_context_init (data);
348 /* FIXME: what to do next ? */
357 } add_assembly_helper_t;
360 add_assembly (gpointer key, gpointer value, gpointer user_data)
362 add_assembly_helper_t *ah = (add_assembly_helper_t *) user_data;
364 mono_array_set (ah->res, gpointer, ah->idx++, mono_assembly_get_object (ah->domain, value));
368 ves_icall_System_AppDomain_GetAssemblies (MonoAppDomain *ad)
370 MonoDomain *domain = ad->data;
371 static MonoClass *System_Reflection_Assembly;
373 add_assembly_helper_t ah;
377 if (!System_Reflection_Assembly)
378 System_Reflection_Assembly = mono_class_from_name (
379 mono_defaults.corlib, "System.Reflection", "Assembly");
381 res = mono_array_new (domain, System_Reflection_Assembly, g_hash_table_size (domain->assemblies));
386 mono_domain_lock (domain);
387 g_hash_table_foreach (domain->assemblies, add_assembly, &ah);
388 mono_domain_unlock (domain);
394 * Used to find methods in AppDomain class.
395 * It only works if there are no multiple signatures for any given method name
398 look_for_method_by_name (MonoClass *klass, const gchar *name)
403 for (i = 0; i < klass->method.count; i++) {
404 method = klass->methods [i];
405 if (!strcmp (method->name, name))
412 static MonoReflectionAssembly *
413 try_assembly_resolve (MonoDomain *domain, MonoString *fname)
419 g_assert (domain != NULL && fname != NULL);
421 klass = domain->domain->mbr.obj.vtable->klass;
424 method = look_for_method_by_name (klass, "DoAssemblyResolve");
425 if (method == NULL) {
426 g_warning ("Method AppDomain.DoAssemblyResolve not found.\n");
431 return (MonoReflectionAssembly *) mono_runtime_invoke (method, domain->domain, params, NULL);
435 add_assemblies_to_domain (MonoDomain *domain, MonoAssembly *ass)
439 mono_domain_lock (domain);
441 if (g_hash_table_lookup (domain->assemblies, ass->aname.name)) {
442 mono_domain_unlock (domain);
443 return; /* This is ok while no lazy loading of assemblies */
446 g_hash_table_insert (domain->assemblies, (gpointer) ass->aname.name, ass);
447 mono_domain_unlock (domain);
449 if (ass->image->references)
450 for (i = 0; ass->image->references [i] != NULL; i++)
451 add_assemblies_to_domain (domain, ass->image->references [i]);
455 mono_domain_fire_assembly_load (MonoAssembly *assembly, gpointer user_data)
457 MonoDomain *domain = mono_domain_get ();
458 MonoReflectionAssembly *ref_assembly;
463 klass = domain->domain->mbr.obj.vtable->klass;
466 method = look_for_method_by_name (klass, "DoAssemblyLoad");
467 if (method == NULL) {
468 g_warning ("Method AppDomain.DoAssemblyLoad not found.\n");
472 add_assemblies_to_domain (domain, assembly);
474 ref_assembly = mono_assembly_get_object (domain, assembly);
475 g_assert (ref_assembly);
477 *params = ref_assembly;
478 mono_runtime_invoke (method, domain->domain, params, NULL);
482 set_domain_search_path (MonoDomain *domain)
484 MonoAppDomainSetup *setup;
489 gchar **pvt_split = NULL;
490 GError *error = NULL;
492 if ((domain->search_path != NULL) && !domain->setup->path_changed)
495 setup = domain->setup;
496 if (setup->application_base)
499 if (setup->private_bin_path) {
500 utf8 = mono_string_to_utf8 (setup->private_bin_path);
501 pvt_split = g_strsplit (utf8, G_SEARCHPATH_SEPARATOR_S, 1000);
503 for (tmp = pvt_split; *tmp; tmp++, npaths++);
508 g_strfreev (pvt_split);
510 * Don't do this because the first time is called, the domain
511 * setup is not finished.
513 * domain->search_path = g_malloc (sizeof (char *));
514 * domain->search_path [0] = NULL;
519 if (domain->search_path)
520 g_strfreev (domain->search_path);
522 domain->search_path = tmp = g_malloc ((npaths + 1) * sizeof (gchar *));
524 if (setup->application_base) {
525 *tmp = mono_string_to_utf8 (setup->application_base);
527 /* FIXME: is this needed? */
528 if (strncmp (*tmp, "file://", 7) == 0) {
533 uri = g_strdup_printf ("file:///%s", uri + 7);
535 *tmp = g_filename_from_uri (uri, NULL, &error);
540 g_warning ("%s\n", error->message);
541 g_error_free (error);
549 *tmp = g_strdup ("");
552 for (i = 1; pvt_split && i < npaths; i++) {
553 if (*tmp [0] == '\0' || g_path_is_absolute (pvt_split [i - 1])) {
554 tmp [i] = g_strdup (pvt_split [i - 1]);
558 tmp [i] = g_build_filename (tmp [0], pvt_split [i - 1], NULL);
561 if (setup->private_bin_path_probe != NULL && setup->application_base) {
563 tmp [0] = g_strdup ("");
566 domain->setup->path_changed = FALSE;
568 g_strfreev (pvt_split);
571 static MonoAssembly *
572 real_load (gchar **search_path, gchar *filename)
574 MonoAssembly *result;
578 for (path = search_path; *path; path++) {
580 continue; /* Ignore empty ApplicationBase */
581 fullpath = g_build_filename (*path, filename, NULL);
582 result = mono_assembly_open (fullpath, NULL);
592 * Try loading the assembly from ApplicationBase and PrivateBinPath
593 * and then from assemblies_path if any.
595 static MonoAssembly *
596 mono_domain_assembly_preload (MonoAssemblyName *aname,
597 gchar **assemblies_path,
600 MonoDomain *domain = mono_domain_get ();
601 MonoAssembly *result;
604 set_domain_search_path (domain);
606 dll = g_strconcat (aname->name, ".dll", NULL);
607 exe = g_strdup (dll);
608 strcpy (exe + strlen (exe) - 4, ".exe");
610 if (domain->search_path && domain->search_path [0] != NULL) {
611 /* TODO: should also search in name/name.dll and name/name.exe from appbase */
612 result = real_load (domain->search_path, dll);
619 result = real_load (domain->search_path, exe);
627 if (assemblies_path && assemblies_path [0] != NULL) {
628 result = real_load (assemblies_path, dll);
635 result = real_load (assemblies_path, exe);
648 MonoReflectionAssembly *
649 ves_icall_System_Reflection_Assembly_LoadFrom (MonoString *fname)
651 MonoDomain *domain = mono_domain_get ();
652 char *name, *filename;
653 MonoImageOpenStatus status = MONO_IMAGE_OK;
659 MonoException *exc = mono_get_exception_argument_null ("assemblyFile");
660 mono_raise_exception (exc);
663 name = filename = mono_string_to_utf8 (fname);
665 ass = mono_assembly_open (filename, &status);
670 MonoException *exc = mono_get_exception_file_not_found (fname);
671 mono_raise_exception (exc);
674 return mono_assembly_get_object (domain, ass);
678 free_assembly_name (MonoAssemblyName *aname)
683 g_free ((void *) aname->name);
684 g_free ((void *) aname->culture);
685 g_free ((void *) aname->hash_value);
689 get_info_from_assembly_name (MonoReflectionAssemblyName *assRef, MonoAssemblyName *aname)
695 gint major, minor, build, revision;
697 memset (aname, 0, sizeof (MonoAssemblyName));
699 name = mono_string_to_utf8 (assRef->name);
700 parts = tmp = g_strsplit (name, ",", 4);
707 value = g_strstrip (*tmp);
708 /* g_print ("Assembly name: %s\n", value); */
709 aname->name = g_strdup (value);
716 value = g_strstrip (*tmp);
717 if (strncmp (value, "Version=", 8)) {
722 if (sscanf (value + 8, "%u.%u.%u.%u", &major, &minor, &build, &revision) != 4) {
727 /* g_print ("Version: %u.%u.%u.%u\n", major, minor, build, revision); */
728 aname->major = major;
729 aname->minor = minor;
730 aname->build = build;
731 aname->revision = revision;
739 value = g_strstrip (*tmp);
740 if (strncmp (value, "Culture=", 8)) {
745 /* g_print ("Culture: %s\n", aname->culture); */
746 aname->culture = g_strstrip (g_strdup (value + 8));
754 value = g_strstrip (*tmp);
755 if (strncmp (value, "PublicKeyToken=", 15)) {
761 if (*value && strcmp (value, "null")) {
766 value = g_strstrip (g_strdup (value));
767 len = strlen (value);
774 aname->hash_len = len / 2;
775 aname->hash_value = g_malloc0 (aname->hash_len);
776 result = (gchar *) aname->hash_value;
778 for (i = 0; i < len; i++) {
780 l = g_ascii_xdigit_value (value [i]);
786 result [i / 2] = (h * 16) + l;
788 h = g_ascii_xdigit_value (value [i]);
799 g_print ("PublicKeyToken: ");
800 for (i = 0; i < aname->hash_len; i++) {
801 g_print ("%x", 0x00FF & aname->hash_value [i]);
811 MonoReflectionAssembly *
812 ves_icall_System_AppDomain_LoadAssembly (MonoAppDomain *ad, MonoReflectionAssemblyName *assRef, MonoObject *evidence)
814 MonoDomain *domain = ad->data;
815 MonoImageOpenStatus status = MONO_IMAGE_OK;
817 MonoAssemblyName aname;
818 MonoReflectionAssembly *refass = NULL;
822 memset (&aname, 0, sizeof (aname));
824 /* FIXME : examine evidence? */
826 g_assert (assRef != NULL);
827 g_assert (assRef->name != NULL);
829 if (!get_info_from_assembly_name (assRef, &aname)) {
832 free_assembly_name (&aname);
833 /* This is a parse error... */
834 exc = mono_get_exception_file_not_found (assRef->name);
835 mono_raise_exception (exc);
838 ass = mono_assembly_load (&aname, NULL, &status);
839 free_assembly_name (&aname);
841 if (!ass && (refass = try_assembly_resolve (domain, assRef->name)) == NULL){
842 /* FIXME: it doesn't make much sense since we really don't have a filename ... */
843 MonoException *exc = mono_get_exception_file_not_found (assRef->name);
844 mono_raise_exception (exc);
850 return mono_assembly_get_object (domain, ass);
854 ves_icall_System_AppDomain_InternalUnload (gint32 domain_id)
856 MonoDomain * domain = mono_domain_get_by_id (domain_id);
860 if (NULL == domain) {
861 MonoException *exc = mono_get_exception_execution_engine ("Failed to unload domain, domain id not found");
862 mono_raise_exception (exc);
865 if (domain == mono_root_domain) {
866 mono_raise_exception (mono_get_exception_cannot_unload_appdomain ("The default appdomain can not be unloaded."));
870 mono_domain_unload (domain);
874 ves_icall_System_AppDomain_ExecuteAssembly (MonoAppDomain *ad, MonoString *file,
875 MonoObject *evidence, MonoArray *args)
877 MonoAssembly *assembly;
885 filename = mono_string_to_utf8 (file);
886 assembly = mono_assembly_open (filename, NULL);
890 mono_raise_exception ((MonoException *)mono_exception_from_name (
891 mono_defaults.corlib, "System.IO", "FileNotFoundException"));
894 image = assembly->image;
896 method = mono_get_method (image, mono_image_get_entry_point (image), NULL);
899 g_error ("No entry point method found in %s", image->name);
902 args = (MonoArray *) mono_array_new (ad->data, mono_defaults.string_class, 0);
904 res = mono_runtime_exec_main (method, (MonoArray *)args, NULL);
910 ves_icall_System_AppDomain_GetIDFromDomain (MonoAppDomain * ad)
914 return ad->data->domain_id;
918 ves_icall_System_AppDomain_InternalSetDomain (MonoAppDomain *ad)
920 MonoDomain *old_domain = mono_domain_get();
924 if (!mono_domain_set (ad->data, FALSE))
925 mono_raise_exception (mono_get_exception_appdomain_unloaded ());
927 return old_domain->domain;
931 ves_icall_System_AppDomain_InternalSetDomainByID (gint32 domainid)
933 MonoDomain *current_domain = mono_domain_get ();
934 MonoDomain *domain = mono_domain_get_by_id (domainid);
938 if (!mono_domain_set (domain, FALSE))
939 mono_raise_exception (mono_get_exception_appdomain_unloaded ());
941 return current_domain->domain;
945 ves_icall_System_AppDomain_InternalInvokeInDomain (MonoAppDomain *ad, MonoReflectionMethod *method, MonoObject *obj, MonoArray *args)
947 MonoDomain *old_domain = mono_domain_get ();
948 MonoMethod *m = method->method;
953 if (!mono_domain_set (ad->data, FALSE))
954 mono_raise_exception (mono_get_exception_appdomain_unloaded ());
956 res = mono_runtime_invoke_array (m, obj, args, NULL);
958 mono_domain_set (old_domain, TRUE);
964 ves_icall_System_AppDomain_InternalInvokeInDomainByID (gint32 domain_id, MonoReflectionMethod *method, MonoObject *obj, MonoArray *args)
966 MonoDomain *domain = mono_domain_get_by_id (domain_id);
968 return ves_icall_System_AppDomain_InternalInvokeInDomain (domain->domain, method, obj, args);
972 ves_icall_System_AppDomain_InternalGetContext ()
976 return mono_context_get ();
980 ves_icall_System_AppDomain_InternalGetDefaultContext ()
984 return mono_domain_get ()->default_context;
988 ves_icall_System_AppDomain_InternalSetContext (MonoAppContext *mc)
990 MonoAppContext *old_context = mono_context_get ();
994 mono_context_set (mc);
1000 ves_icall_System_AppDomain_InternalGetProcessGuid (MonoString* newguid)
1002 mono_domain_lock (mono_root_domain);
1003 if (process_guid_set) {
1004 mono_domain_unlock (mono_root_domain);
1005 return mono_string_new_utf16 (mono_domain_get (), process_guid, sizeof(process_guid)/2);
1007 memcpy (process_guid, mono_string_chars(newguid), sizeof(process_guid));
1008 process_guid_set = TRUE;
1009 mono_domain_unlock (mono_root_domain);
1014 mono_domain_is_unloading (MonoDomain *domain)
1016 if (domain->state == MONO_APPDOMAIN_UNLOADING || domain->state == MONO_APPDOMAIN_UNLOADED)
1023 unload_thread_main (void *arg)
1025 MonoDomain *domain = (MonoDomain*)arg;
1028 printf ("STOP WORLD...\n");
1029 /* FIXME: Can this deadlock with the same call in libgc ? */
1030 mono_gc_stop_world ();
1033 * FIXME: Abort all threads which have stack frames which belong to the
1037 printf ("START WORLD...\n");
1038 mono_gc_start_world ();
1041 /* Finalize all finalizable objects in the doomed appdomain */
1042 if (!mono_domain_finalize (domain, 1000)) {
1043 g_warning ("Finalization of domain %s timed out.", domain->friendly_name);
1047 domain->state = MONO_APPDOMAIN_UNLOADED;
1049 mono_domain_free (domain, FALSE);
1055 * mono_domain_unload:
1057 * Unloads an appdomain. Follows the process outlined in:
1058 * http://blogs.gotdotnet.com/cbrumme
1059 * If doing things the 'right' way is too hard or complex, we do it the
1060 * 'simple' way, which means do everything needed to avoid crashes and
1061 * memory leaks, but not much else.
1064 mono_domain_unload (MonoDomain *domain)
1066 HANDLE thread_handle;
1069 MonoAppDomainState prev_state;
1071 //printf ("UNLOAD STARTING FOR %s.\n", domain->friendly_name);
1073 /* Atomically change our state to UNLOADING */
1074 prev_state = InterlockedCompareExchange (&domain->state,
1075 MONO_APPDOMAIN_UNLOADING,
1076 MONO_APPDOMAIN_CREATED);
1077 if (prev_state != MONO_APPDOMAIN_CREATED) {
1078 if (prev_state == MONO_APPDOMAIN_UNLOADING)
1079 mono_raise_exception (mono_get_exception_cannot_unload_appdomain ("Appdomain is already being unloaded."));
1081 if (prev_state == MONO_APPDOMAIN_UNLOADED)
1082 mono_raise_exception (mono_get_exception_cannot_unload_appdomain ("Appdomain is already unloaded."));
1084 g_assert_not_reached ();
1088 * First we create a separate thread for unloading, since
1089 * we might have to abort some threads, including the current one.
1091 thread_handle = CreateThread (NULL, 0, unload_thread_main, domain, 0, &tid);
1092 ret = WaitForSingleObject (thread_handle, INFINITE);
1094 /* FIXME: Check the thread exit code and throw an exception on failure */