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)
11 #undef ASSEMBLY_LOAD_DEBUG
20 #include <sys/types.h>
22 #include <mono/os/gc_wrapper.h>
24 #include <mono/metadata/object.h>
25 #include <mono/metadata/domain-internals.h>
26 #include "mono/metadata/metadata-internals.h"
27 #include <mono/metadata/assembly.h>
28 #include <mono/metadata/exception.h>
29 #include <mono/metadata/threads.h>
30 #include <mono/metadata/socket-io.h>
31 #include <mono/metadata/tabledefs.h>
32 #include <mono/metadata/gc-internal.h>
33 #include <mono/metadata/mono-gc.h>
34 #include <mono/metadata/marshal.h>
35 #include <mono/metadata/monitor.h>
36 #include <mono/metadata/threadpool.h>
37 #include <mono/metadata/mono-debug.h>
38 #include <mono/utils/mono-uri.h>
39 #include <mono/utils/mono-logger.h>
40 #include <mono/utils/mono-path.h>
41 #include <mono/utils/mono-stdlib.h>
42 #include <mono/utils/mono-io-portability.h>
48 * This is the version number of the corlib-runtime interface. When
49 * making changes to this interface (by changing the layout
50 * of classes the runtime knows about, changing icall signature or
51 * semantics etc), increment this variable. Also increment the
52 * pair of this variable in mscorlib in:
53 * mcs/class/mscorlib/System/Environment.cs
55 * Changes which are already detected at runtime, like the addition
56 * of icalls, do not require an increment.
58 #define MONO_CORLIB_VERSION 64
63 int assemblybinding_count;
67 CRITICAL_SECTION mono_delegate_section;
69 static gunichar2 process_guid [36];
70 static gboolean process_guid_set = FALSE;
72 static gboolean shutting_down = FALSE;
75 mono_domain_assembly_preload (MonoAssemblyName *aname,
76 gchar **assemblies_path,
80 mono_domain_assembly_search (MonoAssemblyName *aname,
84 mono_domain_assembly_postload_search (MonoAssemblyName *aname,
88 mono_domain_fire_assembly_load (MonoAssembly *assembly, gpointer user_data);
91 add_assemblies_to_domain (MonoDomain *domain, MonoAssembly *ass, GHashTable *hash);
94 mono_domain_unload (MonoDomain *domain);
98 * @domain: domain returned by mono_init ()
100 * Initialize the core AppDomain: this function will run also some
101 * IL initialization code, so it needs the execution engine to be fully
104 * AppDomain.SetupInformation is set up in mono_runtime_exec_main, where
105 * we know the entry_assembly.
109 mono_runtime_init (MonoDomain *domain, MonoThreadStartCB start_cb,
110 MonoThreadAttachCB attach_cb)
112 MonoAppDomainSetup *setup;
117 mono_portability_helpers_init ();
119 mono_gc_base_init ();
120 mono_monitor_init ();
121 mono_thread_pool_init ();
122 mono_marshal_init ();
124 mono_install_assembly_preload_hook (mono_domain_assembly_preload, GUINT_TO_POINTER (FALSE));
125 mono_install_assembly_refonly_preload_hook (mono_domain_assembly_preload, GUINT_TO_POINTER (TRUE));
126 mono_install_assembly_search_hook (mono_domain_assembly_search, GUINT_TO_POINTER (FALSE));
127 mono_install_assembly_refonly_search_hook (mono_domain_assembly_search, GUINT_TO_POINTER (TRUE));
128 mono_install_assembly_postload_search_hook (mono_domain_assembly_postload_search, GUINT_TO_POINTER (FALSE));
129 mono_install_assembly_postload_refonly_search_hook (mono_domain_assembly_postload_search, GUINT_TO_POINTER (TRUE));
130 mono_install_assembly_load_hook (mono_domain_fire_assembly_load, NULL);
131 mono_install_lookup_dynamic_token (mono_reflection_lookup_dynamic_token);
133 mono_thread_init (start_cb, attach_cb);
135 class = mono_class_from_name (mono_defaults.corlib, "System", "AppDomainSetup");
136 setup = (MonoAppDomainSetup *) mono_object_new (domain, class);
138 class = mono_class_from_name (mono_defaults.corlib, "System", "AppDomain");
139 ad = (MonoAppDomain *) mono_object_new (domain, class);
142 domain->setup = setup;
144 InitializeCriticalSection (&mono_delegate_section);
146 mono_thread_attach (domain);
147 mono_context_init (domain);
148 mono_context_set (domain->default_context);
150 mono_type_initialization_init ();
154 * Create an instance early since we can't do it when there is no memory.
156 arg = mono_string_new (domain, "Out of memory");
157 domain->out_of_memory_ex = mono_exception_from_name_two_strings (mono_defaults.corlib, "System", "OutOfMemoryException", arg, NULL);
160 * These two are needed because the signal handlers might be executing on
161 * an alternate stack, and Boehm GC can't handle that.
163 arg = mono_string_new (domain, "A null value was found where an object instance was required");
164 domain->null_reference_ex = mono_exception_from_name_two_strings (mono_defaults.corlib, "System", "NullReferenceException", arg, NULL);
165 arg = mono_string_new (domain, "The requested operation caused a stack overflow.");
166 domain->stack_overflow_ex = mono_exception_from_name_two_strings (mono_defaults.corlib, "System", "StackOverflowException", arg, NULL);
168 /* GC init has to happen after thread init */
171 mono_network_init ();
173 /* mscorlib is loaded before we install the load hook */
174 mono_domain_fire_assembly_load (mono_defaults.corlib->assembly, NULL);
180 mono_get_corlib_version (void)
183 MonoClassField *field;
186 klass = mono_class_from_name (mono_defaults.corlib, "System", "Environment");
187 mono_class_init (klass);
188 field = mono_class_get_field_from_name (klass, "mono_corlib_version");
191 if (! (field->type->attrs & FIELD_ATTRIBUTE_STATIC))
193 value = mono_field_get_value_object (mono_domain_get (), field, NULL);
194 return *(gint32*)((gchar*)value + sizeof (MonoObject));
198 mono_check_corlib_version (void)
200 int version = mono_get_corlib_version ();
201 if (version != MONO_CORLIB_VERSION)
202 return g_strdup_printf ("expected corlib version %d, found %d.", MONO_CORLIB_VERSION, version);
208 mono_context_init (MonoDomain *domain)
211 MonoAppContext *context;
213 class = mono_class_from_name (mono_defaults.corlib, "System.Runtime.Remoting.Contexts", "Context");
214 context = (MonoAppContext *) mono_object_new (domain, class);
215 context->domain_id = domain->domain_id;
216 context->context_id = 0;
217 domain->default_context = context;
221 * mono_runtime_cleanup:
226 * This must not be called while there are still running threads executing
230 mono_runtime_cleanup (MonoDomain *domain)
232 shutting_down = TRUE;
234 /* This ends up calling any pending pending (for at most 2 seconds) */
237 mono_thread_cleanup ();
239 mono_network_cleanup ();
241 mono_marshal_cleanup ();
243 mono_type_initialization_cleanup ();
245 mono_monitor_cleanup ();
247 #ifndef PLATFORM_WIN32
252 static MonoDomainFunc quit_function = NULL;
255 mono_install_runtime_cleanup (MonoDomainFunc func)
257 quit_function = func;
263 if (quit_function != NULL)
264 quit_function (mono_get_root_domain (), NULL);
268 * mono_runtime_set_shutting_down:
270 * Invoked by System.Environment.Exit to flag that the runtime
274 mono_runtime_set_shutting_down (void)
276 shutting_down = TRUE;
280 * mono_runtime_is_shutting_down:
282 * Returns whether the runtime has been flagged for shutdown.
284 * This is consumed by the P:System.Environment.HasShutdownStarted
289 mono_runtime_is_shutting_down (void)
291 return shutting_down;
295 * mono_domain_has_type_resolve:
296 * @domain: application domains being looked up
298 * Returns true if the AppDomain.TypeResolve field has been
302 mono_domain_has_type_resolve (MonoDomain *domain)
304 static MonoClassField *field = NULL;
308 field = mono_class_get_field_from_name (mono_defaults.appdomain_class, "TypeResolve");
312 mono_field_get_value ((MonoObject*)(domain->domain), field, &o);
317 * mono_domain_try_type_resolve:
318 * @domain: application domainwhere the name where the type is going to be resolved
319 * @name: the name of the type to resolve or NULL.
320 * @tb: A System.Reflection.Emit.TypeBuilder, used if name is NULL.
322 * This routine invokes the internal System.AppDomain.DoTypeResolve and returns
323 * the assembly that matches name.
325 * If @name is null, the value of ((TypeBuilder)tb).FullName is used instead
327 * Returns: A MonoReflectionAssembly or NULL if not found
329 MonoReflectionAssembly *
330 mono_domain_try_type_resolve (MonoDomain *domain, char *name, MonoObject *tb)
334 static MonoMethod *method = NULL;
336 g_assert (domain != NULL && ((name != NULL) || (tb != NULL)));
338 if (method == NULL) {
339 klass = domain->domain->mbr.obj.vtable->klass;
342 method = mono_class_get_method_from_name (klass, "DoTypeResolve", -1);
343 if (method == NULL) {
344 g_warning ("Method AppDomain.DoTypeResolve not found.\n");
350 *params = (MonoObject*)mono_string_new (mono_domain_get (), name);
353 return (MonoReflectionAssembly *) mono_runtime_invoke (method, domain->domain, params, NULL);
357 * mono_domain_owns_vtable_slot:
359 * Returns whenever VTABLE_SLOT is inside a vtable which belongs to DOMAIN.
362 mono_domain_owns_vtable_slot (MonoDomain *domain, gpointer vtable_slot)
366 mono_domain_lock (domain);
367 res = mono_mempool_contains_addr (domain->mp, vtable_slot);
368 mono_domain_unlock (domain);
375 * @force: force setting.
377 * Set the current appdomain to @domain. If @force is set, set it even
378 * if it is being unloaded.
382 * FALSE if the domain is unloaded
385 mono_domain_set (MonoDomain *domain, gboolean force)
387 if (!force && domain->state == MONO_APPDOMAIN_UNLOADED)
390 mono_domain_set_internal (domain);
396 ves_icall_System_AppDomain_GetData (MonoAppDomain *ad, MonoString *name)
404 g_assert (ad != NULL);
406 g_assert (add != NULL);
409 mono_raise_exception (mono_get_exception_argument_null ("name"));
411 str = mono_string_to_utf8 (name);
413 mono_domain_lock (add);
415 if (!strcmp (str, "APPBASE"))
416 o = (MonoObject *)add->setup->application_base;
417 else if (!strcmp (str, "APP_CONFIG_FILE"))
418 o = (MonoObject *)add->setup->configuration_file;
419 else if (!strcmp (str, "DYNAMIC_BASE"))
420 o = (MonoObject *)add->setup->dynamic_base;
421 else if (!strcmp (str, "APP_NAME"))
422 o = (MonoObject *)add->setup->application_name;
423 else if (!strcmp (str, "CACHE_BASE"))
424 o = (MonoObject *)add->setup->cache_path;
425 else if (!strcmp (str, "PRIVATE_BINPATH"))
426 o = (MonoObject *)add->setup->private_bin_path;
427 else if (!strcmp (str, "BINPATH_PROBE_ONLY"))
428 o = (MonoObject *)add->setup->private_bin_path_probe;
429 else if (!strcmp (str, "SHADOW_COPY_DIRS"))
430 o = (MonoObject *)add->setup->shadow_copy_directories;
431 else if (!strcmp (str, "FORCE_CACHE_INSTALL"))
432 o = (MonoObject *)add->setup->shadow_copy_files;
434 o = mono_g_hash_table_lookup (add->env, name);
436 mono_domain_unlock (add);
446 ves_icall_System_AppDomain_SetData (MonoAppDomain *ad, MonoString *name, MonoObject *data)
452 g_assert (ad != NULL);
454 g_assert (add != NULL);
457 mono_raise_exception (mono_get_exception_argument_null ("name"));
459 mono_domain_lock (add);
461 mono_g_hash_table_insert (add->env, name, data);
463 mono_domain_unlock (add);
467 ves_icall_System_AppDomain_getSetup (MonoAppDomain *ad)
471 g_assert (ad != NULL);
472 g_assert (ad->data != NULL);
474 return ad->data->setup;
478 ves_icall_System_AppDomain_getFriendlyName (MonoAppDomain *ad)
482 g_assert (ad != NULL);
483 g_assert (ad->data != NULL);
485 return mono_string_new (ad->data, ad->data->friendly_name);
489 ves_icall_System_AppDomain_getCurDomain ()
491 MonoDomain *add = mono_domain_get ();
499 ves_icall_System_AppDomain_getRootDomain ()
501 MonoDomain *root = mono_get_root_domain ();
509 get_attribute_value (const gchar **attribute_names,
510 const gchar **attribute_values,
511 const char *att_name)
514 for (n = 0; attribute_names [n] != NULL; n++) {
515 if (strcmp (attribute_names [n], att_name) == 0)
516 return g_strdup (attribute_values [n]);
522 start_element (GMarkupParseContext *context,
523 const gchar *element_name,
524 const gchar **attribute_names,
525 const gchar **attribute_values,
529 RuntimeConfig *runtime_config = user_data;
531 if (strcmp (element_name, "runtime") == 0) {
532 runtime_config->runtime_count++;
536 if (strcmp (element_name, "assemblyBinding") == 0) {
537 runtime_config->assemblybinding_count++;
541 if (runtime_config->runtime_count != 1 || runtime_config->assemblybinding_count != 1)
544 if (strcmp (element_name, "probing") != 0)
547 g_free (runtime_config->domain->private_bin_path);
548 runtime_config->domain->private_bin_path = get_attribute_value (attribute_names, attribute_values, "privatePath");
549 if (runtime_config->domain->private_bin_path && !runtime_config->domain->private_bin_path [0]) {
550 g_free (runtime_config->domain->private_bin_path);
551 runtime_config->domain->private_bin_path = NULL;
557 end_element (GMarkupParseContext *context,
558 const gchar *element_name,
562 RuntimeConfig *runtime_config = user_data;
563 if (strcmp (element_name, "runtime") == 0)
564 runtime_config->runtime_count--;
565 else if (strcmp (element_name, "assemblyBinding") == 0)
566 runtime_config->assemblybinding_count--;
569 static const GMarkupParser
579 mono_set_private_bin_path_from_config (MonoDomain *domain)
581 gchar *config_file, *text;
584 GMarkupParseContext *context;
585 RuntimeConfig runtime_config;
587 if (!domain || !domain->setup || !domain->setup->configuration_file)
590 config_file = mono_string_to_utf8 (domain->setup->configuration_file);
591 if (stat (config_file, &sbuf) != 0) {
592 g_free (config_file);
596 if (!g_file_get_contents (config_file, &text, &len, NULL)) {
597 g_free (config_file);
600 g_free (config_file);
602 runtime_config.runtime_count = 0;
603 runtime_config.assemblybinding_count = 0;
604 runtime_config.domain = domain;
606 context = g_markup_parse_context_new (&mono_parser, 0, &runtime_config, NULL);
607 if (g_markup_parse_context_parse (context, text, len, NULL))
608 g_markup_parse_context_end_parse (context, NULL);
609 g_markup_parse_context_free (context);
614 ves_icall_System_AppDomain_createDomain (MonoString *friendly_name, MonoAppDomainSetup *setup)
622 adclass = mono_class_from_name (mono_defaults.corlib, "System", "AppDomain");
624 /* FIXME: pin all those objects */
625 data = mono_domain_create();
627 ad = (MonoAppDomain *) mono_object_new (data, adclass);
631 data->friendly_name = mono_string_to_utf8 (friendly_name);
632 data->out_of_memory_ex = mono_exception_from_name_domain (data, mono_defaults.corlib, "System", "OutOfMemoryException");
634 if (!setup->application_base) {
635 /* Inherit from the root domain since MS.NET does this */
636 MonoDomain *root = mono_get_root_domain ();
637 if (root->setup->application_base)
638 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)));
641 mono_set_private_bin_path_from_config (data);
643 mono_context_init (data);
645 add_assemblies_to_domain (data, mono_defaults.corlib->assembly, NULL);
651 ves_icall_System_AppDomain_GetAssemblies (MonoAppDomain *ad, MonoBoolean refonly)
653 MonoDomain *domain = ad->data;
655 static MonoClass *System_Reflection_Assembly;
662 if (!System_Reflection_Assembly)
663 System_Reflection_Assembly = mono_class_from_name (
664 mono_defaults.corlib, "System.Reflection", "Assembly");
667 /* Need to skip internal assembly builders created by remoting */
668 mono_domain_assemblies_lock (domain);
669 for (tmp = domain->domain_assemblies; tmp; tmp = tmp->next) {
671 if (refonly && !ass->ref_only)
673 if (!ass->corlib_internal)
676 res = mono_array_new (domain, System_Reflection_Assembly, count);
678 for (tmp = domain->domain_assemblies; tmp; tmp = tmp->next) {
680 if (refonly && !ass->ref_only)
682 if (ass->corlib_internal)
684 mono_array_setref (res, i, mono_assembly_get_object (domain, ass));
687 mono_domain_assemblies_unlock (domain);
692 MonoReflectionAssembly *
693 mono_try_assembly_resolve (MonoDomain *domain, MonoString *fname, gboolean refonly)
697 MonoBoolean isrefonly;
700 g_assert (domain != NULL && fname != NULL);
702 klass = domain->domain->mbr.obj.vtable->klass;
705 method = mono_class_get_method_from_name (klass, "DoAssemblyResolve", -1);
706 if (method == NULL) {
707 g_warning ("Method AppDomain.DoAssemblyResolve not found.\n");
711 isrefonly = refonly ? 1 : 0;
713 params [1] = &isrefonly;
714 return (MonoReflectionAssembly *) mono_runtime_invoke (method, domain->domain, params, NULL);
717 static MonoAssembly *
718 mono_domain_assembly_postload_search (MonoAssemblyName *aname,
721 gboolean refonly = GPOINTER_TO_UINT (user_data);
722 MonoReflectionAssembly *assembly;
723 MonoDomain *domain = mono_domain_get ();
726 aname_str = mono_stringify_assembly_name (aname);
728 /* FIXME: We invoke managed code here, so there is a potential for deadlocks */
729 assembly = mono_try_assembly_resolve (domain, mono_string_new (domain, aname_str), refonly);
734 return assembly->assembly;
740 * LOCKING: assumes assemblies_lock in the domain is already locked.
743 add_assemblies_to_domain (MonoDomain *domain, MonoAssembly *ass, GHashTable *ht)
747 gboolean destroy_ht = FALSE;
749 if (!ass->aname.name)
753 ht = g_hash_table_new (mono_aligned_addr_hash, NULL);
757 /* FIXME: handle lazy loaded assemblies */
758 for (tmp = domain->domain_assemblies; tmp; tmp = tmp->next) {
759 g_hash_table_insert (ht, tmp->data, tmp->data);
761 if (!g_hash_table_lookup (ht, ass)) {
762 mono_assembly_addref (ass);
763 g_hash_table_insert (ht, ass, ass);
764 domain->domain_assemblies = g_slist_prepend (domain->domain_assemblies, ass);
765 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_ASSEMBLY, "Assembly %s %p added to domain %s, ref_count=%d\n", ass->aname.name, ass, domain->friendly_name, ass->ref_count);
768 if (ass->image->references) {
769 for (i = 0; ass->image->references [i] != NULL; i++) {
770 if (ass->image->references [i] != REFERENCE_MISSING)
771 if (!g_hash_table_lookup (ht, ass->image->references [i])) {
772 add_assemblies_to_domain (domain, ass->image->references [i], ht);
777 g_hash_table_destroy (ht);
781 mono_domain_fire_assembly_load (MonoAssembly *assembly, gpointer user_data)
783 static MonoClassField *assembly_load_field;
784 static MonoMethod *assembly_load_method;
785 MonoDomain *domain = mono_domain_get ();
786 MonoReflectionAssembly *ref_assembly;
792 /* This can happen during startup */
794 #ifdef ASSEMBLY_LOAD_DEBUG
795 fprintf (stderr, "Loading %s into domain %s\n", assembly->aname.name, domain->friendly_name);
797 klass = domain->domain->mbr.obj.vtable->klass;
799 mono_domain_assemblies_lock (domain);
800 add_assemblies_to_domain (domain, assembly, NULL);
801 mono_domain_assemblies_unlock (domain);
803 if (assembly_load_field == NULL) {
804 assembly_load_field = mono_class_get_field_from_name (klass, "AssemblyLoad");
805 g_assert (assembly_load_field);
808 mono_field_get_value ((MonoObject*) domain->domain, assembly_load_field, &load_value);
809 if (load_value == NULL) {
810 /* No events waiting to be triggered */
814 ref_assembly = mono_assembly_get_object (domain, assembly);
815 g_assert (ref_assembly);
817 if (assembly_load_method == NULL) {
818 assembly_load_method = mono_class_get_method_from_name (klass, "DoAssemblyLoad", -1);
819 g_assert (assembly_load_method);
822 *params = ref_assembly;
823 mono_runtime_invoke (assembly_load_method, domain->domain, params, NULL);
827 set_domain_search_path (MonoDomain *domain)
829 MonoAppDomainSetup *setup;
831 gchar *search_path = NULL;
834 gchar **pvt_split = NULL;
835 GError *error = NULL;
836 gint appbaselen = -1;
838 if ((domain->search_path != NULL) && !domain->setup->path_changed)
843 setup = domain->setup;
844 if (!setup->application_base)
845 return; /* Must set application base to get private path working */
849 if (setup->private_bin_path)
850 search_path = mono_string_to_utf8 (setup->private_bin_path);
852 if (domain->private_bin_path) {
853 if (search_path == NULL)
854 search_path = domain->private_bin_path;
856 gchar *tmp2 = search_path;
857 search_path = g_strjoin (";", search_path, domain->private_bin_path, NULL);
864 * As per MSDN documentation, AppDomainSetup.PrivateBinPath contains a list of
865 * directories relative to ApplicationBase separated by semicolons (see
866 * http://msdn2.microsoft.com/en-us/library/system.appdomainsetup.privatebinpath.aspx)
867 * The loop below copes with the fact that some Unix applications may use ':' (or
868 * System.IO.Path.PathSeparator) as the path search separator. We replace it with
869 * ';' for the subsequent split.
871 * The issue was reported in bug #81446
874 #ifndef PLATFORM_WIN32
877 slen = strlen (search_path);
878 for (i = 0; i < slen; i++)
879 if (search_path [i] == ':')
880 search_path [i] = ';';
883 pvt_split = g_strsplit (search_path, ";", 1000);
884 g_free (search_path);
885 for (tmp = pvt_split; *tmp; tmp++, npaths++);
890 g_strfreev (pvt_split);
892 * Don't do this because the first time is called, the domain
893 * setup is not finished.
895 * domain->search_path = g_malloc (sizeof (char *));
896 * domain->search_path [0] = NULL;
901 if (domain->search_path)
902 g_strfreev (domain->search_path);
904 domain->search_path = tmp = g_malloc ((npaths + 1) * sizeof (gchar *));
907 *tmp = mono_string_to_utf8 (setup->application_base);
909 /* FIXME: is this needed? */
910 if (strncmp (*tmp, "file://", 7) == 0) {
916 uri = g_strdup_printf ("file:///%s", uri + 7);
919 uri = mono_escape_uri_string (tmpuri);
920 *tmp = g_filename_from_uri (uri, NULL, &error);
927 g_warning ("%s\n", error->message);
928 g_error_free (error);
935 for (i = 1; pvt_split && i < npaths; i++) {
936 if (g_path_is_absolute (pvt_split [i - 1])) {
937 tmp [i] = g_strdup (pvt_split [i - 1]);
939 tmp [i] = g_build_filename (tmp [0], pvt_split [i - 1], NULL);
942 if (strchr (tmp [i], '.')) {
946 reduced = mono_path_canonicalize (tmp [i]);
947 if (appbaselen == -1)
948 appbaselen = strlen (tmp [0]);
950 if (strncmp (tmp [0], reduced, appbaselen)) {
953 tmp [i] = g_strdup ("");
963 if (setup->private_bin_path_probe != NULL) {
965 tmp [0] = g_strdup ("");
968 domain->setup->path_changed = FALSE;
970 g_strfreev (pvt_split);
974 shadow_copy_sibling (gchar *src, gint srclen, const char *extension, gchar *target, gint targetlen, gint tail_len)
976 guint16 *orig, *dest;
977 gboolean copy_result;
979 strcpy (src + srclen - tail_len, extension);
980 if (!g_file_test (src, G_FILE_TEST_IS_REGULAR))
982 orig = g_utf8_to_utf16 (src, strlen (src), NULL, NULL, NULL);
984 strcpy (target + targetlen - tail_len, extension);
985 dest = g_utf8_to_utf16 (target, strlen (target), NULL, NULL, NULL);
988 copy_result = CopyFile (orig, dest, FALSE);
996 get_cstring_hash (const char *str)
1002 if (!str || !str [0])
1007 for (i = 0; i < len; i++) {
1008 h = (h << 5) - h + *p;
1016 get_shadow_assembly_location (const char *filename)
1018 gint32 hash = 0, hash2 = 0;
1020 char path_hash [30];
1021 char *bname = g_path_get_basename (filename);
1022 char *dirname = g_path_get_dirname (filename);
1023 char *location, *dyn_base;
1024 MonoDomain *domain = mono_domain_get ();
1026 hash = get_cstring_hash (bname);
1027 hash2 = get_cstring_hash (dirname);
1028 g_snprintf (name_hash, sizeof (name_hash), "%08x", hash);
1029 g_snprintf (path_hash, sizeof (path_hash), "%08x_%08x_%08x", hash ^ hash2, hash2, domain->shadow_serial);
1030 dyn_base = mono_string_to_utf8 (domain->setup->dynamic_base);
1031 location = g_build_filename (dyn_base, "assembly", "shadow", name_hash, path_hash, bname, NULL);
1039 ensure_directory_exists (const char *filename)
1041 #ifdef PLATFORM_WIN32
1042 gchar *dir_utf8 = g_path_get_dirname (filename);
1044 gunichar2 *dir_utf16 = NULL;
1047 if (!dir_utf8 || !dir_utf8 [0])
1050 dir_utf16 = g_utf8_to_utf16 (dir_utf8, strlen (dir_utf8), NULL, NULL, NULL);
1058 /* make life easy and only use one directory seperator */
1069 while (*p++ != '\\')
1075 p = wcschr (p, '\\');
1078 retval = _wmkdir (dir_utf16);
1079 if (retval != 0 && errno != EEXIST) {
1092 gchar *dir = g_path_get_dirname (filename);
1095 if (!dir || !dir [0])
1103 p = strchr (p, '/');
1106 retval = mkdir (dir, 0777);
1107 if (retval != 0 && errno != EEXIST) {
1122 make_shadow_copy (const char *filename)
1124 gchar *sibling_source, *sibling_target;
1125 gint sibling_source_len, sibling_target_len;
1126 guint16 *orig, *dest;
1128 gboolean copy_result;
1131 shadow = get_shadow_assembly_location (filename);
1132 if (ensure_directory_exists (shadow) == FALSE) {
1133 exc = mono_get_exception_execution_engine ("Failed to create shadow copy (ensure directory exists).");
1134 mono_raise_exception (exc);
1137 orig = g_utf8_to_utf16 (filename, strlen (filename), NULL, NULL, NULL);
1138 dest = g_utf8_to_utf16 (shadow, strlen (shadow), NULL, NULL, NULL);
1140 copy_result = CopyFile (orig, dest, FALSE);
1144 if (copy_result == FALSE) {
1146 exc = mono_get_exception_execution_engine ("Failed to create shadow copy (CopyFile).");
1147 mono_raise_exception (exc);
1150 /* attempt to copy .mdb, .config if they exist */
1151 sibling_source = g_strconcat (filename, ".config", NULL);
1152 sibling_source_len = strlen (sibling_source);
1153 sibling_target = g_strconcat (shadow, ".config", NULL);
1154 sibling_target_len = strlen (sibling_target);
1156 copy_result = shadow_copy_sibling (sibling_source, sibling_source_len, ".mdb", sibling_target, sibling_target_len, 7);
1157 if (copy_result == TRUE)
1158 copy_result = shadow_copy_sibling (sibling_source, sibling_source_len, ".config", sibling_target, sibling_target_len, 7);
1160 g_free (sibling_source);
1161 g_free (sibling_target);
1163 if (copy_result == FALSE) {
1165 exc = mono_get_exception_execution_engine ("Failed to create shadow copy of sibling data (CopyFile).");
1166 mono_raise_exception (exc);
1173 try_load_from (MonoAssembly **assembly, const gchar *path1, const gchar *path2,
1174 const gchar *path3, const gchar *path4,
1175 gboolean refonly, gboolean is_private)
1181 fullpath = g_build_filename (path1, path2, path3, path4, NULL);
1182 if (g_file_test (fullpath, G_FILE_TEST_IS_REGULAR)) {
1184 char *new_path = make_shadow_copy (fullpath);
1186 fullpath = new_path;
1189 *assembly = mono_assembly_open_full (fullpath, NULL, refonly);
1193 return (*assembly != NULL);
1196 static MonoAssembly *
1197 real_load (gchar **search_path, const gchar *culture, const gchar *name, gboolean refonly)
1199 MonoAssembly *result = NULL;
1202 const gchar *local_culture;
1204 gboolean is_private = FALSE;
1206 if (!culture || *culture == '\0') {
1209 local_culture = culture;
1212 filename = g_strconcat (name, ".dll", NULL);
1213 len = strlen (filename);
1215 for (path = search_path; *path; path++) {
1216 if (**path == '\0') {
1218 continue; /* Ignore empty ApplicationBase */
1221 /* See test cases in bug #58992 and bug #57710 */
1222 /* 1st try: [culture]/[name].dll (culture may be empty) */
1223 strcpy (filename + len - 4, ".dll");
1224 if (try_load_from (&result, *path, local_culture, "", filename, refonly, is_private))
1227 /* 2nd try: [culture]/[name].exe (culture may be empty) */
1228 strcpy (filename + len - 4, ".exe");
1229 if (try_load_from (&result, *path, local_culture, "", filename, refonly, is_private))
1232 /* 3rd try: [culture]/[name]/[name].dll (culture may be empty) */
1233 strcpy (filename + len - 4, ".dll");
1234 if (try_load_from (&result, *path, local_culture, name, filename, refonly, is_private))
1237 /* 4th try: [culture]/[name]/[name].exe (culture may be empty) */
1238 strcpy (filename + len - 4, ".exe");
1239 if (try_load_from (&result, *path, local_culture, name, filename, refonly, is_private))
1248 * Try loading the assembly from ApplicationBase and PrivateBinPath
1249 * and then from assemblies_path if any.
1251 static MonoAssembly *
1252 mono_domain_assembly_preload (MonoAssemblyName *aname,
1253 gchar **assemblies_path,
1256 MonoDomain *domain = mono_domain_get ();
1257 MonoAssembly *result = NULL;
1258 gboolean refonly = GPOINTER_TO_UINT (user_data);
1260 set_domain_search_path (domain);
1262 if (domain->search_path && domain->search_path [0] != NULL) {
1263 result = real_load (domain->search_path, aname->culture, aname->name, refonly);
1266 if (result == NULL && assemblies_path && assemblies_path [0] != NULL) {
1267 result = real_load (assemblies_path, aname->culture, aname->name, refonly);
1274 * Check whenever a given assembly was already loaded in the current appdomain.
1276 static MonoAssembly *
1277 mono_domain_assembly_search (MonoAssemblyName *aname,
1280 MonoDomain *domain = mono_domain_get ();
1283 gboolean refonly = GPOINTER_TO_UINT (user_data);
1285 mono_domain_assemblies_lock (domain);
1286 for (tmp = domain->domain_assemblies; tmp; tmp = tmp->next) {
1288 /* Dynamic assemblies can't match here in MS.NET */
1289 if (ass->dynamic || refonly != ass->ref_only || !mono_assembly_names_equal (aname, &ass->aname))
1292 mono_domain_assemblies_unlock (domain);
1295 mono_domain_assemblies_unlock (domain);
1300 MonoReflectionAssembly *
1301 ves_icall_System_Reflection_Assembly_LoadFrom (MonoString *fname, MonoBoolean refOnly)
1303 MonoDomain *domain = mono_domain_get ();
1304 char *name, *filename;
1305 MonoImageOpenStatus status = MONO_IMAGE_OK;
1308 MONO_ARCH_SAVE_REGS;
1310 if (fname == NULL) {
1311 MonoException *exc = mono_get_exception_argument_null ("assemblyFile");
1312 mono_raise_exception (exc);
1315 name = filename = mono_string_to_utf8 (fname);
1317 ass = mono_assembly_open_full (filename, &status, refOnly);
1322 if (status == MONO_IMAGE_IMAGE_INVALID)
1323 exc = mono_get_exception_bad_image_format2 (NULL, fname);
1325 exc = mono_get_exception_file_not_found2 (NULL, fname);
1327 mono_raise_exception (exc);
1332 return mono_assembly_get_object (domain, ass);
1335 MonoReflectionAssembly *
1336 ves_icall_System_AppDomain_LoadAssemblyRaw (MonoAppDomain *ad,
1337 MonoArray *raw_assembly,
1338 MonoArray *raw_symbol_store, MonoObject *evidence,
1339 MonoBoolean refonly)
1342 MonoReflectionAssembly *refass = NULL;
1343 MonoDomain *domain = ad->data;
1344 MonoImageOpenStatus status;
1345 guint32 raw_assembly_len = mono_array_length (raw_assembly);
1346 MonoImage *image = mono_image_open_from_data_full (mono_array_addr (raw_assembly, gchar, 0), raw_assembly_len, TRUE, NULL, refonly);
1349 mono_raise_exception (mono_get_exception_bad_image_format (""));
1353 if (raw_symbol_store != NULL)
1354 mono_debug_open_image_from_memory (image, mono_array_addr (raw_symbol_store, guint8, 0), mono_array_length (raw_symbol_store));
1356 ass = mono_assembly_load_from_full (image, "", &status, refonly);
1360 mono_image_close (image);
1361 mono_raise_exception (mono_get_exception_bad_image_format (""));
1365 refass = mono_assembly_get_object (domain, ass);
1366 MONO_OBJECT_SETREF (refass, evidence, evidence);
1370 MonoReflectionAssembly *
1371 ves_icall_System_AppDomain_LoadAssembly (MonoAppDomain *ad, MonoString *assRef, MonoObject *evidence, MonoBoolean refOnly)
1373 MonoDomain *domain = ad->data;
1374 MonoImageOpenStatus status = MONO_IMAGE_OK;
1376 MonoAssemblyName aname;
1377 MonoReflectionAssembly *refass = NULL;
1381 MONO_ARCH_SAVE_REGS;
1383 g_assert (assRef != NULL);
1385 name = mono_string_to_utf8 (assRef);
1386 parsed = mono_assembly_name_parse (name, &aname);
1392 /* This is a parse error... */
1393 exc = mono_get_exception_file_not_found2 (NULL, assRef);
1394 mono_raise_exception (exc);
1397 ass = mono_assembly_load_full_nosearch (&aname, NULL, &status, refOnly);
1398 mono_assembly_name_free (&aname);
1401 /* MS.NET doesn't seem to call the assembly resolve handler for refonly assemblies */
1403 refass = mono_try_assembly_resolve (domain, assRef, refOnly);
1407 /* FIXME: it doesn't make much sense since we really don't have a filename ... */
1408 MonoException *exc = mono_get_exception_file_not_found2 (NULL, assRef);
1409 mono_raise_exception (exc);
1414 refass = mono_assembly_get_object (domain, ass);
1416 MONO_OBJECT_SETREF (refass, evidence, evidence);
1421 ves_icall_System_AppDomain_InternalUnload (gint32 domain_id)
1423 MonoDomain * domain = mono_domain_get_by_id (domain_id);
1425 MONO_ARCH_SAVE_REGS;
1427 if (NULL == domain) {
1428 MonoException *exc = mono_get_exception_execution_engine ("Failed to unload domain, domain id not found");
1429 mono_raise_exception (exc);
1432 if (domain == mono_get_root_domain ()) {
1433 mono_raise_exception (mono_get_exception_cannot_unload_appdomain ("The default appdomain can not be unloaded."));
1438 * Unloading seems to cause problems when running NUnit/NAnt, hence
1441 if (g_getenv ("MONO_NO_UNLOAD"))
1444 mono_domain_unload (domain);
1448 ves_icall_System_AppDomain_InternalIsFinalizingForUnload (gint32 domain_id)
1450 MonoDomain *domain = mono_domain_get_by_id (domain_id);
1455 return mono_domain_is_unloading (domain);
1459 ves_icall_System_AppDomain_ExecuteAssembly (MonoAppDomain *ad, MonoString *file,
1460 MonoObject *evidence, MonoArray *args)
1462 MonoAssembly *assembly;
1467 MonoReflectionAssembly *refass;
1469 MONO_ARCH_SAVE_REGS;
1471 filename = mono_string_to_utf8 (file);
1472 assembly = mono_assembly_open (filename, NULL);
1476 mono_raise_exception (mono_get_exception_file_not_found2 (NULL, file));
1478 image = assembly->image;
1480 method = mono_get_method (image, mono_image_get_entry_point (image), NULL);
1483 g_error ("No entry point method found in %s", image->name);
1486 args = (MonoArray *) mono_array_new (ad->data, mono_defaults.string_class, 0);
1488 refass = mono_assembly_get_object (ad->data, assembly);
1489 MONO_OBJECT_SETREF (refass, evidence, evidence);
1491 res = mono_runtime_exec_main (method, (MonoArray *)args, NULL);
1497 ves_icall_System_AppDomain_GetIDFromDomain (MonoAppDomain * ad)
1499 MONO_ARCH_SAVE_REGS;
1501 return ad->data->domain_id;
1505 ves_icall_System_AppDomain_InternalSetDomain (MonoAppDomain *ad)
1507 MonoDomain *old_domain = mono_domain_get();
1509 MONO_ARCH_SAVE_REGS;
1511 if (!mono_domain_set (ad->data, FALSE))
1512 mono_raise_exception (mono_get_exception_appdomain_unloaded ());
1514 return old_domain->domain;
1518 ves_icall_System_AppDomain_InternalSetDomainByID (gint32 domainid)
1520 MonoDomain *current_domain = mono_domain_get ();
1521 MonoDomain *domain = mono_domain_get_by_id (domainid);
1523 MONO_ARCH_SAVE_REGS;
1525 if (!domain || !mono_domain_set (domain, FALSE))
1526 mono_raise_exception (mono_get_exception_appdomain_unloaded ());
1528 return current_domain->domain;
1532 ves_icall_System_AppDomain_InternalPushDomainRef (MonoAppDomain *ad)
1534 MONO_ARCH_SAVE_REGS;
1536 mono_thread_push_appdomain_ref (ad->data);
1540 ves_icall_System_AppDomain_InternalPushDomainRefByID (gint32 domain_id)
1542 MonoDomain *domain = mono_domain_get_by_id (domain_id);
1544 MONO_ARCH_SAVE_REGS;
1548 * Raise an exception to prevent the managed code from executing a pop
1551 mono_raise_exception (mono_get_exception_appdomain_unloaded ());
1553 mono_thread_push_appdomain_ref (domain);
1557 ves_icall_System_AppDomain_InternalPopDomainRef (void)
1559 MONO_ARCH_SAVE_REGS;
1561 mono_thread_pop_appdomain_ref ();
1565 ves_icall_System_AppDomain_InternalGetContext ()
1567 MONO_ARCH_SAVE_REGS;
1569 return mono_context_get ();
1573 ves_icall_System_AppDomain_InternalGetDefaultContext ()
1575 MONO_ARCH_SAVE_REGS;
1577 return mono_domain_get ()->default_context;
1581 ves_icall_System_AppDomain_InternalSetContext (MonoAppContext *mc)
1583 MonoAppContext *old_context = mono_context_get ();
1585 MONO_ARCH_SAVE_REGS;
1587 mono_context_set (mc);
1593 ves_icall_System_AppDomain_InternalGetProcessGuid (MonoString* newguid)
1595 MonoDomain* mono_root_domain = mono_get_root_domain ();
1596 mono_domain_lock (mono_root_domain);
1597 if (process_guid_set) {
1598 mono_domain_unlock (mono_root_domain);
1599 return mono_string_new_utf16 (mono_domain_get (), process_guid, sizeof(process_guid)/2);
1601 memcpy (process_guid, mono_string_chars(newguid), sizeof(process_guid));
1602 process_guid_set = TRUE;
1603 mono_domain_unlock (mono_root_domain);
1608 mono_domain_is_unloading (MonoDomain *domain)
1610 if (domain->state == MONO_APPDOMAIN_UNLOADING || domain->state == MONO_APPDOMAIN_UNLOADED)
1617 clear_cached_vtable (gpointer key, gpointer value, gpointer user_data)
1619 MonoClass *klass = (MonoClass*)key;
1620 MonoDomain *domain = (MonoDomain*)user_data;
1621 MonoClassRuntimeInfo *runtime_info;
1623 runtime_info = klass->runtime_info;
1624 if (runtime_info && runtime_info->max_domain >= domain->domain_id)
1625 runtime_info->domain_vtables [domain->domain_id] = NULL;
1628 typedef struct unload_data {
1630 char *failure_reason;
1633 static guint32 WINAPI
1634 unload_thread_main (void *arg)
1636 unload_data *data = (unload_data*)arg;
1637 MonoDomain *domain = data->domain;
1640 * FIXME: Abort our parent thread last, so we can return a failure
1641 * indication if aborting times out.
1643 if (!mono_threads_abort_appdomain_threads (domain, 10000)) {
1644 data->failure_reason = g_strdup_printf ("Aborting of threads in domain %s timed out.", domain->friendly_name);
1648 /* Finalize all finalizable objects in the doomed appdomain */
1649 if (!mono_domain_finalize (domain, 10000)) {
1650 data->failure_reason = g_strdup_printf ("Finalization of domain %s timed out.", domain->friendly_name);
1654 /* Clear references to our vtables in class->runtime_info.
1655 * We also hold the loader lock because we're going to change
1656 * class->runtime_info.
1658 mono_domain_lock (domain);
1659 mono_loader_lock ();
1660 g_hash_table_foreach (domain->class_vtable_hash, clear_cached_vtable, domain);
1661 mono_loader_unlock ();
1662 mono_domain_unlock (domain);
1664 mono_threads_clear_cached_culture (domain);
1666 domain->state = MONO_APPDOMAIN_UNLOADED;
1668 /* printf ("UNLOADED %s.\n", domain->friendly_name); */
1670 /* remove from the handle table the items related to this domain */
1671 mono_gchandle_free_domain (domain);
1673 mono_domain_free (domain, FALSE);
1675 mono_gc_collect (mono_gc_max_generation ());
1681 * mono_domain_unload:
1682 * @domain: The domain to unload
1684 * Unloads an appdomain. Follows the process outlined in:
1685 * http://blogs.gotdotnet.com/cbrumme
1687 * If doing things the 'right' way is too hard or complex, we do it the
1688 * 'simple' way, which means do everything needed to avoid crashes and
1689 * memory leaks, but not much else.
1692 mono_domain_unload (MonoDomain *domain)
1694 HANDLE thread_handle;
1697 MonoAppDomainState prev_state;
1700 unload_data thread_data;
1701 MonoDomain *caller_domain = mono_domain_get ();
1703 /* printf ("UNLOAD STARTING FOR %s (%p) IN THREAD 0x%x.\n", domain->friendly_name, domain, GetCurrentThreadId ()); */
1705 /* Atomically change our state to UNLOADING */
1706 prev_state = InterlockedCompareExchange ((gint32*)&domain->state,
1707 MONO_APPDOMAIN_UNLOADING,
1708 MONO_APPDOMAIN_CREATED);
1709 if (prev_state != MONO_APPDOMAIN_CREATED) {
1710 if (prev_state == MONO_APPDOMAIN_UNLOADING)
1711 mono_raise_exception (mono_get_exception_cannot_unload_appdomain ("Appdomain is already being unloaded."));
1713 if (prev_state == MONO_APPDOMAIN_UNLOADED)
1714 mono_raise_exception (mono_get_exception_cannot_unload_appdomain ("Appdomain is already unloaded."));
1716 g_assert_not_reached ();
1719 mono_domain_set (domain, FALSE);
1720 /* Notify OnDomainUnload listeners */
1721 method = mono_class_get_method_from_name (domain->domain->mbr.obj.vtable->klass, "DoDomainUnload", -1);
1725 mono_runtime_invoke (method, domain->domain, NULL, &exc);
1727 /* Roll back the state change */
1728 domain->state = MONO_APPDOMAIN_CREATED;
1729 mono_domain_set (caller_domain, FALSE);
1730 mono_raise_exception ((MonoException*)exc);
1733 thread_data.domain = domain;
1734 thread_data.failure_reason = NULL;
1737 * First we create a separate thread for unloading, since
1738 * we might have to abort some threads, including the current one.
1741 * If we create a non-suspended thread, the runtime will hang.
1743 * http://bugzilla.ximian.com/show_bug.cgi?id=27663
1746 thread_handle = CreateThread (NULL, 0, unload_thread_main, &thread_data, 0, &tid);
1748 thread_handle = CreateThread (NULL, 0, (LPTHREAD_START_ROUTINE)unload_thread_main, &thread_data, CREATE_SUSPENDED, &tid);
1749 if (thread_handle == NULL) {
1752 ResumeThread (thread_handle);
1755 /* Wait for the thread */
1756 while ((res = WaitForSingleObjectEx (thread_handle, INFINITE, TRUE) == WAIT_IO_COMPLETION)) {
1757 if (mono_thread_has_appdomain_ref (mono_thread_current (), domain) && (mono_thread_interruption_requested ()))
1758 /* The unload thread tries to abort us */
1759 /* The icall wrapper will execute the abort */
1760 CloseHandle (thread_handle);
1763 CloseHandle (thread_handle);
1765 mono_domain_set (caller_domain, FALSE);
1767 if (thread_data.failure_reason) {
1770 /* Roll back the state change */
1771 domain->state = MONO_APPDOMAIN_CREATED;
1773 g_warning (thread_data.failure_reason);
1775 ex = mono_get_exception_cannot_unload_appdomain (thread_data.failure_reason);
1777 g_free (thread_data.failure_reason);
1778 thread_data.failure_reason = NULL;
1780 mono_raise_exception (ex);