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
18 #include <sys/types.h>
20 #include <mono/os/gc_wrapper.h>
22 #include <mono/metadata/object.h>
23 #include <mono/metadata/domain-internals.h>
24 #include "mono/metadata/metadata-internals.h"
25 #include <mono/metadata/assembly.h>
26 #include <mono/metadata/exception.h>
27 #include <mono/metadata/threads.h>
28 #include <mono/metadata/socket-io.h>
29 #include <mono/metadata/tabledefs.h>
30 #include <mono/metadata/gc-internal.h>
31 #include <mono/metadata/mono-gc.h>
32 #include <mono/metadata/marshal.h>
33 #include <mono/metadata/monitor.h>
34 #include <mono/metadata/threadpool.h>
35 #include <mono/metadata/mono-debug.h>
36 #include <mono/utils/mono-uri.h>
37 #include <mono/utils/mono-logger.h>
38 #include <mono/utils/mono-path.h>
39 #include <mono/utils/mono-stdlib.h>
44 #define MONO_CORLIB_VERSION 54
46 CRITICAL_SECTION mono_delegate_section;
48 static gunichar2 process_guid [36];
49 static gboolean process_guid_set = FALSE;
51 static gboolean shutting_down = FALSE;
54 mono_domain_assembly_preload (MonoAssemblyName *aname,
55 gchar **assemblies_path,
59 mono_domain_assembly_search (MonoAssemblyName *aname,
63 mono_domain_assembly_postload_search (MonoAssemblyName *aname,
67 mono_domain_fire_assembly_load (MonoAssembly *assembly, gpointer user_data);
70 add_assemblies_to_domain (MonoDomain *domain, MonoAssembly *ass, GHashTable *hash);
73 mono_domain_unload (MonoDomain *domain);
77 * @domain: domain returned by mono_init ()
79 * Initialize the core AppDomain: this function will run also some
80 * IL initialization code, so it needs the execution engine to be fully
83 * AppDomain.SetupInformation is set up in mono_runtime_exec_main, where
84 * we know the entry_assembly.
88 mono_runtime_init (MonoDomain *domain, MonoThreadStartCB start_cb,
89 MonoThreadAttachCB attach_cb)
91 MonoAppDomainSetup *setup;
98 mono_thread_pool_init ();
101 mono_install_assembly_preload_hook (mono_domain_assembly_preload, GUINT_TO_POINTER (FALSE));
102 mono_install_assembly_refonly_preload_hook (mono_domain_assembly_preload, GUINT_TO_POINTER (TRUE));
103 mono_install_assembly_search_hook (mono_domain_assembly_search, GUINT_TO_POINTER (FALSE));
104 mono_install_assembly_refonly_search_hook (mono_domain_assembly_search, GUINT_TO_POINTER (TRUE));
105 mono_install_assembly_postload_search_hook (mono_domain_assembly_postload_search, GUINT_TO_POINTER (FALSE));
106 mono_install_assembly_postload_refonly_search_hook (mono_domain_assembly_postload_search, GUINT_TO_POINTER (TRUE));
107 mono_install_assembly_load_hook (mono_domain_fire_assembly_load, NULL);
108 mono_install_lookup_dynamic_token (mono_reflection_lookup_dynamic_token);
110 mono_thread_init (start_cb, attach_cb);
112 class = mono_class_from_name (mono_defaults.corlib, "System", "AppDomainSetup");
113 setup = (MonoAppDomainSetup *) mono_object_new (domain, class);
115 class = mono_class_from_name (mono_defaults.corlib, "System", "AppDomain");
116 ad = (MonoAppDomain *) mono_object_new (domain, class);
119 domain->setup = setup;
121 InitializeCriticalSection (&mono_delegate_section);
123 mono_thread_attach (domain);
124 mono_context_init (domain);
125 mono_context_set (domain->default_context);
127 mono_type_initialization_init ();
131 * Create an instance early since we can't do it when there is no memory.
133 arg = mono_string_new (domain, "Out of memory");
134 domain->out_of_memory_ex = mono_exception_from_name_two_strings (mono_defaults.corlib, "System", "OutOfMemoryException", arg, NULL);
137 * These two are needed because the signal handlers might be executing on
138 * an alternate stack, and Boehm GC can't handle that.
140 arg = mono_string_new (domain, "A null value was found where an object instance was required");
141 domain->null_reference_ex = mono_exception_from_name_two_strings (mono_defaults.corlib, "System", "NullReferenceException", arg, NULL);
142 arg = mono_string_new (domain, "The requested operation caused a stack overflow.");
143 domain->stack_overflow_ex = mono_exception_from_name_two_strings (mono_defaults.corlib, "System", "StackOverflowException", arg, NULL);
145 /* GC init has to happen after thread init */
148 mono_network_init ();
150 /* mscorlib is loaded before we install the load hook */
151 mono_domain_fire_assembly_load (mono_defaults.corlib->assembly, NULL);
157 mono_get_corlib_version (void)
160 MonoClassField *field;
163 klass = mono_class_from_name (mono_defaults.corlib, "System", "Environment");
164 mono_class_init (klass);
165 field = mono_class_get_field_from_name (klass, "mono_corlib_version");
168 if (! (field->type->attrs & FIELD_ATTRIBUTE_STATIC))
170 value = mono_field_get_value_object (mono_domain_get (), field, NULL);
171 return *(gint32*)((gchar*)value + sizeof (MonoObject));
175 mono_check_corlib_version (void)
177 int version = mono_get_corlib_version ();
178 if (version != MONO_CORLIB_VERSION)
179 return g_strdup_printf ("expected corlib version %d, found %d.", MONO_CORLIB_VERSION, version);
185 mono_context_init (MonoDomain *domain)
188 MonoAppContext *context;
190 class = mono_class_from_name (mono_defaults.corlib, "System.Runtime.Remoting.Contexts", "Context");
191 context = (MonoAppContext *) mono_object_new (domain, class);
192 context->domain_id = domain->domain_id;
193 context->context_id = 0;
194 domain->default_context = context;
198 * mono_runtime_cleanup:
203 * This must not be called while there are still running threads executing
207 mono_runtime_cleanup (MonoDomain *domain)
209 shutting_down = TRUE;
211 /* This ends up calling any pending pending (for at most 2 seconds) */
214 mono_thread_cleanup ();
216 mono_network_cleanup ();
218 mono_marshal_cleanup ();
220 mono_type_initialization_cleanup ();
222 mono_monitor_cleanup ();
225 static MonoDomainFunc quit_function = NULL;
228 mono_install_runtime_cleanup (MonoDomainFunc func)
230 quit_function = func;
236 if (quit_function != NULL)
237 quit_function (mono_get_root_domain (), NULL);
241 * mono_runtime_set_shutting_down:
243 * Invoked by System.Environment.Exit to flag that the runtime
247 mono_runtime_set_shutting_down (void)
249 shutting_down = TRUE;
253 * mono_runtime_is_shutting_down:
255 * Returns whether the runtime has been flagged for shutdown.
257 * This is consumed by the P:System.Environment.HasShutdownStarted
262 mono_runtime_is_shutting_down (void)
264 return shutting_down;
268 * mono_domain_has_type_resolve:
269 * @domain: application domains being looked up
271 * Returns true if the AppDomain.TypeResolve field has been
275 mono_domain_has_type_resolve (MonoDomain *domain)
277 static MonoClassField *field = NULL;
281 field = mono_class_get_field_from_name (mono_defaults.appdomain_class, "TypeResolve");
285 mono_field_get_value ((MonoObject*)(domain->domain), field, &o);
290 * mono_domain_try_type_resolve:
291 * @domain: application domainwhere the name where the type is going to be resolved
292 * @name: the name of the type to resolve or NULL.
293 * @tb: A System.Reflection.Emit.TypeBuilder, used if name is NULL.
295 * This routine invokes the internal System.AppDomain.DoTypeResolve and returns
296 * the assembly that matches name.
298 * If @name is null, the value of ((TypeBuilder)tb).FullName is used instead
300 * Returns: A MonoReflectionAssembly or NULL if not found
302 MonoReflectionAssembly *
303 mono_domain_try_type_resolve (MonoDomain *domain, char *name, MonoObject *tb)
307 static MonoMethod *method = NULL;
309 g_assert (domain != NULL && ((name != NULL) || (tb != NULL)));
311 if (method == NULL) {
312 klass = domain->domain->mbr.obj.vtable->klass;
315 method = mono_class_get_method_from_name (klass, "DoTypeResolve", -1);
316 if (method == NULL) {
317 g_warning ("Method AppDomain.DoTypeResolve not found.\n");
323 *params = (MonoObject*)mono_string_new (mono_domain_get (), name);
326 return (MonoReflectionAssembly *) mono_runtime_invoke (method, domain->domain, params, NULL);
330 * mono_domain_owns_vtable_slot:
332 * Returns whenever VTABLE_SLOT is inside a vtable which belongs to DOMAIN.
335 mono_domain_owns_vtable_slot (MonoDomain *domain, gpointer vtable_slot)
339 mono_domain_lock (domain);
340 res = mono_mempool_contains_addr (domain->mp, vtable_slot);
341 mono_domain_unlock (domain);
348 * @force: force setting.
350 * Set the current appdomain to @domain. If @force is set, set it even
351 * if it is being unloaded.
355 * FALSE if the domain is unloaded
358 mono_domain_set (MonoDomain *domain, gboolean force)
360 if (!force && domain->state == MONO_APPDOMAIN_UNLOADED)
363 mono_domain_set_internal (domain);
369 ves_icall_System_AppDomain_GetData (MonoAppDomain *ad, MonoString *name)
377 g_assert (ad != NULL);
379 g_assert (add != NULL);
382 mono_raise_exception (mono_get_exception_argument_null ("name"));
384 str = mono_string_to_utf8 (name);
386 mono_domain_lock (add);
388 if (!strcmp (str, "APPBASE"))
389 o = (MonoObject *)add->setup->application_base;
390 else if (!strcmp (str, "APP_CONFIG_FILE"))
391 o = (MonoObject *)add->setup->configuration_file;
392 else if (!strcmp (str, "DYNAMIC_BASE"))
393 o = (MonoObject *)add->setup->dynamic_base;
394 else if (!strcmp (str, "APP_NAME"))
395 o = (MonoObject *)add->setup->application_name;
396 else if (!strcmp (str, "CACHE_BASE"))
397 o = (MonoObject *)add->setup->cache_path;
398 else if (!strcmp (str, "PRIVATE_BINPATH"))
399 o = (MonoObject *)add->setup->private_bin_path;
400 else if (!strcmp (str, "BINPATH_PROBE_ONLY"))
401 o = (MonoObject *)add->setup->private_bin_path_probe;
402 else if (!strcmp (str, "SHADOW_COPY_DIRS"))
403 o = (MonoObject *)add->setup->shadow_copy_directories;
404 else if (!strcmp (str, "FORCE_CACHE_INSTALL"))
405 o = (MonoObject *)add->setup->shadow_copy_files;
407 o = mono_g_hash_table_lookup (add->env, name);
409 mono_domain_unlock (add);
419 ves_icall_System_AppDomain_SetData (MonoAppDomain *ad, MonoString *name, MonoObject *data)
425 g_assert (ad != NULL);
427 g_assert (add != NULL);
430 mono_raise_exception (mono_get_exception_argument_null ("name"));
432 mono_domain_lock (add);
434 mono_g_hash_table_insert (add->env, name, data);
436 mono_domain_unlock (add);
440 ves_icall_System_AppDomain_getSetup (MonoAppDomain *ad)
444 g_assert (ad != NULL);
445 g_assert (ad->data != NULL);
447 return ad->data->setup;
451 ves_icall_System_AppDomain_getFriendlyName (MonoAppDomain *ad)
455 g_assert (ad != NULL);
456 g_assert (ad->data != NULL);
458 return mono_string_new (ad->data, ad->data->friendly_name);
462 ves_icall_System_AppDomain_getCurDomain ()
464 MonoDomain *add = mono_domain_get ();
472 ves_icall_System_AppDomain_getRootDomain ()
474 MonoDomain *root = mono_get_root_domain ();
482 ves_icall_System_AppDomain_createDomain (MonoString *friendly_name, MonoAppDomainSetup *setup)
490 adclass = mono_class_from_name (mono_defaults.corlib, "System", "AppDomain");
492 /* FIXME: pin all those objects */
493 data = mono_domain_create();
495 ad = (MonoAppDomain *) mono_object_new (data, adclass);
499 data->friendly_name = mono_string_to_utf8 (friendly_name);
500 data->out_of_memory_ex = mono_exception_from_name_domain (data, mono_defaults.corlib, "System", "OutOfMemoryException");
502 if (!setup->application_base) {
503 /* Inherit from the root domain since MS.NET does this */
504 MonoDomain *root = mono_get_root_domain ();
505 if (root->setup->application_base)
506 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)));
509 mono_context_init (data);
511 add_assemblies_to_domain (data, mono_defaults.corlib->assembly, NULL);
517 ves_icall_System_AppDomain_GetAssemblies (MonoAppDomain *ad, MonoBoolean refonly)
519 MonoDomain *domain = ad->data;
521 static MonoClass *System_Reflection_Assembly;
528 if (!System_Reflection_Assembly)
529 System_Reflection_Assembly = mono_class_from_name (
530 mono_defaults.corlib, "System.Reflection", "Assembly");
533 /* Need to skip internal assembly builders created by remoting */
534 mono_domain_assemblies_lock (domain);
535 for (tmp = domain->domain_assemblies; tmp; tmp = tmp->next) {
537 if (refonly && !ass->ref_only)
539 if (!ass->corlib_internal)
542 res = mono_array_new (domain, System_Reflection_Assembly, count);
544 for (tmp = domain->domain_assemblies; tmp; tmp = tmp->next) {
546 if (refonly && !ass->ref_only)
548 if (ass->corlib_internal)
550 mono_array_setref (res, i, mono_assembly_get_object (domain, ass));
553 mono_domain_assemblies_unlock (domain);
558 static MonoReflectionAssembly *
559 try_assembly_resolve (MonoDomain *domain, MonoString *fname, gboolean refonly)
563 MonoBoolean isrefonly;
566 g_assert (domain != NULL && fname != NULL);
568 klass = domain->domain->mbr.obj.vtable->klass;
571 method = mono_class_get_method_from_name (klass, "DoAssemblyResolve", -1);
572 if (method == NULL) {
573 g_warning ("Method AppDomain.DoAssemblyResolve not found.\n");
577 isrefonly = refonly ? 1 : 0;
579 params [1] = &isrefonly;
580 return (MonoReflectionAssembly *) mono_runtime_invoke (method, domain->domain, params, NULL);
583 static MonoAssembly *
584 mono_domain_assembly_postload_search (MonoAssemblyName *aname,
587 gboolean refonly = GPOINTER_TO_UINT (user_data);
588 MonoReflectionAssembly *assembly;
589 MonoDomain *domain = mono_domain_get ();
592 aname_str = mono_stringify_assembly_name (aname);
594 /* FIXME: We invoke managed code here, so there is a potential for deadlocks */
595 assembly = try_assembly_resolve (domain, mono_string_new (domain, aname_str), refonly);
600 return assembly->assembly;
606 * LOCKING: assumes assemblies_lock in the domain is already locked.
609 add_assemblies_to_domain (MonoDomain *domain, MonoAssembly *ass, GHashTable *ht)
613 gboolean destroy_ht = FALSE;
615 if (!ass->aname.name)
619 ht = g_hash_table_new (mono_aligned_addr_hash, NULL);
623 /* FIXME: handle lazy loaded assemblies */
624 for (tmp = domain->domain_assemblies; tmp; tmp = tmp->next) {
625 g_hash_table_insert (ht, tmp->data, tmp->data);
627 if (!g_hash_table_lookup (ht, ass)) {
628 mono_assembly_addref (ass);
629 g_hash_table_insert (ht, ass, ass);
630 domain->domain_assemblies = g_slist_prepend (domain->domain_assemblies, ass);
631 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);
634 if (ass->image->references) {
635 for (i = 0; ass->image->references [i] != NULL; i++) {
636 if (!g_hash_table_lookup (ht, ass->image->references [i])) {
637 add_assemblies_to_domain (domain, ass->image->references [i], ht);
642 g_hash_table_destroy (ht);
646 mono_domain_fire_assembly_load (MonoAssembly *assembly, gpointer user_data)
648 static MonoClassField *assembly_load_field;
649 static MonoMethod *assembly_load_method;
650 MonoDomain *domain = mono_domain_get ();
651 MonoReflectionAssembly *ref_assembly;
657 /* This can happen during startup */
659 #ifdef ASSEMBLY_LOAD_DEBUG
660 fprintf (stderr, "Loading %s into domain %s\n", assembly->aname.name, domain->friendly_name);
662 klass = domain->domain->mbr.obj.vtable->klass;
664 mono_domain_assemblies_lock (domain);
665 add_assemblies_to_domain (domain, assembly, NULL);
666 mono_domain_assemblies_unlock (domain);
668 if (assembly_load_field == NULL) {
669 assembly_load_field = mono_class_get_field_from_name (klass, "AssemblyLoad");
670 g_assert (assembly_load_field);
673 mono_field_get_value ((MonoObject*) domain->domain, assembly_load_field, &load_value);
674 if (load_value == NULL) {
675 /* No events waiting to be triggered */
679 ref_assembly = mono_assembly_get_object (domain, assembly);
680 g_assert (ref_assembly);
682 if (assembly_load_method == NULL) {
683 assembly_load_method = mono_class_get_method_from_name (klass, "DoAssemblyLoad", -1);
684 g_assert (assembly_load_method);
687 *params = ref_assembly;
688 mono_runtime_invoke (assembly_load_method, domain->domain, params, NULL);
692 set_domain_search_path (MonoDomain *domain)
694 MonoAppDomainSetup *setup;
699 gchar **pvt_split = NULL;
700 GError *error = NULL;
701 gint appbaselen = -1;
703 if ((domain->search_path != NULL) && !domain->setup->path_changed)
708 setup = domain->setup;
709 if (!setup->application_base)
710 return; /* Must set application base to get private path working */
713 if (setup->private_bin_path) {
714 utf8 = mono_string_to_utf8 (setup->private_bin_path);
715 pvt_split = g_strsplit (utf8, G_SEARCHPATH_SEPARATOR_S, 1000);
717 for (tmp = pvt_split; *tmp; tmp++, npaths++);
722 g_strfreev (pvt_split);
724 * Don't do this because the first time is called, the domain
725 * setup is not finished.
727 * domain->search_path = g_malloc (sizeof (char *));
728 * domain->search_path [0] = NULL;
733 if (domain->search_path)
734 g_strfreev (domain->search_path);
736 domain->search_path = tmp = g_malloc ((npaths + 1) * sizeof (gchar *));
739 *tmp = mono_string_to_utf8 (setup->application_base);
741 /* FIXME: is this needed? */
742 if (strncmp (*tmp, "file://", 7) == 0) {
748 uri = g_strdup_printf ("file:///%s", uri + 7);
751 uri = mono_escape_uri_string (tmpuri);
752 *tmp = g_filename_from_uri (uri, NULL, &error);
759 g_warning ("%s\n", error->message);
760 g_error_free (error);
767 for (i = 1; pvt_split && i < npaths; i++) {
768 if (g_path_is_absolute (pvt_split [i - 1])) {
769 tmp [i] = g_strdup (pvt_split [i - 1]);
771 tmp [i] = g_build_filename (tmp [0], pvt_split [i - 1], NULL);
774 if (strchr (tmp [i], '.')) {
778 reduced = mono_path_canonicalize (tmp [i]);
779 if (appbaselen == -1)
780 appbaselen = strlen (tmp [0]);
782 if (strncmp (tmp [0], reduced, appbaselen)) {
785 tmp [i] = g_strdup ("");
795 if (setup->private_bin_path_probe != NULL) {
797 tmp [0] = g_strdup ("");
800 domain->setup->path_changed = FALSE;
802 g_strfreev (pvt_split);
806 shadow_copy_sibling (gchar *src, gint srclen, const char *extension, gchar *target, gint targetlen, gint tail_len)
808 guint16 *orig, *dest;
809 gboolean copy_result;
811 strcpy (src + srclen - tail_len, extension);
812 if (!g_file_test (src, G_FILE_TEST_IS_REGULAR))
814 orig = g_utf8_to_utf16 (src, strlen (src), NULL, NULL, NULL);
816 strcpy (target + targetlen - tail_len, extension);
817 dest = g_utf8_to_utf16 (target, strlen (target), NULL, NULL, NULL);
819 copy_result = CopyFile (orig, dest, FALSE);
827 get_cstring_hash (const char *str)
833 if (!str || !str [0])
838 for (i = 0; i < len; i++) {
839 h = (h << 5) - h + *p;
847 get_shadow_assembly_location (const char *filename)
849 gint32 hash = 0, hash2 = 0;
852 char *bname = g_path_get_basename (filename);
853 MonoDomain *domain = mono_domain_get ();
855 hash = get_cstring_hash (bname);
856 hash2 = get_cstring_hash (g_path_get_dirname (filename));
857 g_snprintf (name_hash, sizeof (name_hash), "%08x", hash);
858 g_snprintf (path_hash, sizeof (path_hash), "%08x_%08x", hash ^ hash2, hash2);
859 return g_build_filename (mono_string_to_utf8 (domain->setup->dynamic_base),
869 ensure_directory_exists (const char *filename)
871 #ifdef PLATFORM_WIN32
872 gchar *dir_utf8 = g_path_get_dirname (filename);
874 gunichar2 *dir_utf16 = NULL;
877 if (!dir_utf8 || !dir_utf8 [0])
880 dir_utf16 = g_utf8_to_utf16 (dir_utf8, strlen (dir_utf8), NULL, NULL, NULL);
888 /* make life easy and only use one directory seperator */
905 p = wcschr (p, '\\');
908 retval = _wmkdir (dir_utf16);
909 if (retval != 0 && errno != EEXIST) {
922 gchar *dir = g_path_get_dirname (filename);
925 if (!dir || !dir [0])
936 retval = mkdir (dir, 0777);
937 if (retval != 0 && errno != EEXIST) {
952 make_shadow_copy (const char *filename)
954 gchar *sibling_source, *sibling_target;
955 gint sibling_source_len, sibling_target_len;
956 guint16 *orig, *dest;
958 gboolean copy_result;
961 shadow = get_shadow_assembly_location (filename);
962 if (ensure_directory_exists (shadow) == FALSE) {
963 exc = mono_get_exception_execution_engine ("Failed to create shadow copy (ensure directory exists).");
964 mono_raise_exception (exc);
967 orig = g_utf8_to_utf16 (filename, strlen (filename), NULL, NULL, NULL);
968 dest = g_utf8_to_utf16 (shadow, strlen (shadow), NULL, NULL, NULL);
969 copy_result = CopyFile (orig, dest, FALSE);
973 if (copy_result == FALSE) {
975 exc = mono_get_exception_execution_engine ("Failed to create shadow copy (CopyFile).");
976 mono_raise_exception (exc);
979 /* attempt to copy .mdb, .config if they exist */
980 sibling_source = g_strconcat (filename, ".config", NULL);
981 sibling_source_len = strlen (sibling_source);
982 sibling_target = g_strconcat (shadow, ".config", NULL);
983 sibling_target_len = strlen (sibling_target);
985 copy_result = shadow_copy_sibling (sibling_source, sibling_source_len, ".mdb", sibling_target, sibling_target_len, 7);
986 if (copy_result == TRUE)
987 copy_result = shadow_copy_sibling (sibling_source, sibling_source_len, ".config", sibling_target, sibling_target_len, 7);
989 g_free (sibling_source);
990 g_free (sibling_target);
992 if (copy_result == FALSE) {
994 exc = mono_get_exception_execution_engine ("Failed to create shadow copy of sibling data (CopyFile).");
995 mono_raise_exception (exc);
1002 try_load_from (MonoAssembly **assembly, const gchar *path1, const gchar *path2,
1003 const gchar *path3, const gchar *path4,
1004 gboolean refonly, gboolean is_private)
1010 fullpath = g_build_filename (path1, path2, path3, path4, NULL);
1011 if (g_file_test (fullpath, G_FILE_TEST_IS_REGULAR)) {
1013 char *new_path = make_shadow_copy (fullpath);
1015 fullpath = new_path;
1018 *assembly = mono_assembly_open_full (fullpath, NULL, refonly);
1022 return (*assembly != NULL);
1025 static MonoAssembly *
1026 real_load (gchar **search_path, const gchar *culture, const gchar *name, gboolean refonly)
1028 MonoAssembly *result = NULL;
1031 const gchar *local_culture;
1033 gboolean is_private = FALSE;
1035 if (!culture || *culture == '\0') {
1038 local_culture = culture;
1041 filename = g_strconcat (name, ".dll", NULL);
1042 len = strlen (filename);
1044 for (path = search_path; *path; path++) {
1045 if (**path == '\0') {
1047 continue; /* Ignore empty ApplicationBase */
1050 /* See test cases in bug #58992 and bug #57710 */
1051 /* 1st try: [culture]/[name].dll (culture may be empty) */
1052 strcpy (filename + len - 4, ".dll");
1053 if (try_load_from (&result, *path, local_culture, "", filename, refonly, is_private))
1056 /* 2nd try: [culture]/[name].exe (culture may be empty) */
1057 strcpy (filename + len - 4, ".exe");
1058 if (try_load_from (&result, *path, local_culture, "", filename, refonly, is_private))
1061 /* 3rd try: [culture]/[name]/[name].dll (culture may be empty) */
1062 strcpy (filename + len - 4, ".dll");
1063 if (try_load_from (&result, *path, local_culture, name, filename, refonly, is_private))
1066 /* 4th try: [culture]/[name]/[name].exe (culture may be empty) */
1067 strcpy (filename + len - 4, ".exe");
1068 if (try_load_from (&result, *path, local_culture, name, filename, refonly, is_private))
1077 * Try loading the assembly from ApplicationBase and PrivateBinPath
1078 * and then from assemblies_path if any.
1080 static MonoAssembly *
1081 mono_domain_assembly_preload (MonoAssemblyName *aname,
1082 gchar **assemblies_path,
1085 MonoDomain *domain = mono_domain_get ();
1086 MonoAssembly *result = NULL;
1087 gboolean refonly = GPOINTER_TO_UINT (user_data);
1089 set_domain_search_path (domain);
1091 if (domain->search_path && domain->search_path [0] != NULL) {
1092 result = real_load (domain->search_path, aname->culture, aname->name, refonly);
1095 if (result == NULL && assemblies_path && assemblies_path [0] != NULL) {
1096 result = real_load (assemblies_path, aname->culture, aname->name, refonly);
1103 * Check whenever a given assembly was already loaded in the current appdomain.
1105 static MonoAssembly *
1106 mono_domain_assembly_search (MonoAssemblyName *aname,
1109 MonoDomain *domain = mono_domain_get ();
1112 gboolean refonly = GPOINTER_TO_UINT (user_data);
1114 mono_domain_assemblies_lock (domain);
1115 for (tmp = domain->domain_assemblies; tmp; tmp = tmp->next) {
1117 /* Dynamic assemblies can't match here in MS.NET */
1118 if (ass->dynamic || refonly != ass->ref_only || !mono_assembly_names_equal (aname, &ass->aname))
1121 mono_domain_assemblies_unlock (domain);
1124 mono_domain_assemblies_unlock (domain);
1129 MonoReflectionAssembly *
1130 ves_icall_System_Reflection_Assembly_LoadFrom (MonoString *fname, MonoBoolean refOnly)
1132 MonoDomain *domain = mono_domain_get ();
1133 char *name, *filename;
1134 MonoImageOpenStatus status = MONO_IMAGE_OK;
1137 MONO_ARCH_SAVE_REGS;
1139 if (fname == NULL) {
1140 MonoException *exc = mono_get_exception_argument_null ("assemblyFile");
1141 mono_raise_exception (exc);
1144 name = filename = mono_string_to_utf8 (fname);
1146 ass = mono_assembly_open_full (filename, &status, refOnly);
1151 if (status == MONO_IMAGE_IMAGE_INVALID)
1152 exc = mono_get_exception_bad_image_format2 (NULL, fname);
1154 exc = mono_get_exception_file_not_found2 (NULL, fname);
1156 mono_raise_exception (exc);
1161 return mono_assembly_get_object (domain, ass);
1164 MonoReflectionAssembly *
1165 ves_icall_System_AppDomain_LoadAssemblyRaw (MonoAppDomain *ad,
1166 MonoArray *raw_assembly,
1167 MonoArray *raw_symbol_store, MonoObject *evidence,
1168 MonoBoolean refonly)
1171 MonoReflectionAssembly *refass = NULL;
1172 MonoDomain *domain = ad->data;
1173 MonoImageOpenStatus status;
1174 guint32 raw_assembly_len = mono_array_length (raw_assembly);
1175 MonoImage *image = mono_image_open_from_data_full (mono_array_addr (raw_assembly, gchar, 0), raw_assembly_len, TRUE, NULL, refonly);
1178 mono_raise_exception (mono_get_exception_bad_image_format (""));
1182 if (raw_symbol_store != NULL)
1183 mono_debug_init_2_memory (image, mono_array_addr (raw_symbol_store, guint8, 0), mono_array_length (raw_symbol_store));
1185 ass = mono_assembly_load_from_full (image, "", &status, refonly);
1189 mono_image_close (image);
1190 mono_raise_exception (mono_get_exception_bad_image_format (""));
1194 refass = mono_assembly_get_object (domain, ass);
1195 MONO_OBJECT_SETREF (refass, evidence, evidence);
1199 MonoReflectionAssembly *
1200 ves_icall_System_AppDomain_LoadAssembly (MonoAppDomain *ad, MonoString *assRef, MonoObject *evidence, MonoBoolean refOnly)
1202 MonoDomain *domain = ad->data;
1203 MonoImageOpenStatus status = MONO_IMAGE_OK;
1205 MonoAssemblyName aname;
1206 MonoReflectionAssembly *refass = NULL;
1210 MONO_ARCH_SAVE_REGS;
1212 g_assert (assRef != NULL);
1214 name = mono_string_to_utf8 (assRef);
1215 parsed = mono_assembly_name_parse (name, &aname);
1221 /* This is a parse error... */
1222 exc = mono_get_exception_file_not_found2 (NULL, assRef);
1223 mono_raise_exception (exc);
1226 ass = mono_assembly_load_full (&aname, NULL, &status, refOnly);
1227 mono_assembly_name_free (&aname);
1229 if (!ass && (refass = try_assembly_resolve (domain, assRef, refOnly)) == NULL){
1230 /* FIXME: it doesn't make much sense since we really don't have a filename ... */
1231 MonoException *exc = mono_get_exception_file_not_found2 (NULL, assRef);
1232 mono_raise_exception (exc);
1236 refass = mono_assembly_get_object (domain, ass);
1238 MONO_OBJECT_SETREF (refass, evidence, evidence);
1243 ves_icall_System_AppDomain_InternalUnload (gint32 domain_id)
1245 MonoDomain * domain = mono_domain_get_by_id (domain_id);
1247 MONO_ARCH_SAVE_REGS;
1249 if (NULL == domain) {
1250 MonoException *exc = mono_get_exception_execution_engine ("Failed to unload domain, domain id not found");
1251 mono_raise_exception (exc);
1254 if (domain == mono_get_root_domain ()) {
1255 mono_raise_exception (mono_get_exception_cannot_unload_appdomain ("The default appdomain can not be unloaded."));
1260 * Unloading seems to cause problems when running NUnit/NAnt, hence
1263 if (g_getenv ("MONO_NO_UNLOAD"))
1266 mono_domain_unload (domain);
1270 ves_icall_System_AppDomain_InternalIsFinalizingForUnload (gint32 domain_id)
1272 MonoDomain *domain = mono_domain_get_by_id (domain_id);
1277 return mono_domain_is_unloading (domain);
1281 ves_icall_System_AppDomain_ExecuteAssembly (MonoAppDomain *ad, MonoString *file,
1282 MonoObject *evidence, MonoArray *args)
1284 MonoAssembly *assembly;
1289 MonoReflectionAssembly *refass;
1291 MONO_ARCH_SAVE_REGS;
1293 filename = mono_string_to_utf8 (file);
1294 assembly = mono_assembly_open (filename, NULL);
1298 mono_raise_exception (mono_get_exception_file_not_found2 (NULL, file));
1300 image = assembly->image;
1302 method = mono_get_method (image, mono_image_get_entry_point (image), NULL);
1305 g_error ("No entry point method found in %s", image->name);
1308 args = (MonoArray *) mono_array_new (ad->data, mono_defaults.string_class, 0);
1310 refass = mono_assembly_get_object (ad->data, assembly);
1311 MONO_OBJECT_SETREF (refass, evidence, evidence);
1313 res = mono_runtime_exec_main (method, (MonoArray *)args, NULL);
1319 ves_icall_System_AppDomain_GetIDFromDomain (MonoAppDomain * ad)
1321 MONO_ARCH_SAVE_REGS;
1323 return ad->data->domain_id;
1327 ves_icall_System_AppDomain_InternalSetDomain (MonoAppDomain *ad)
1329 MonoDomain *old_domain = mono_domain_get();
1331 MONO_ARCH_SAVE_REGS;
1333 if (!mono_domain_set (ad->data, FALSE))
1334 mono_raise_exception (mono_get_exception_appdomain_unloaded ());
1336 return old_domain->domain;
1340 ves_icall_System_AppDomain_InternalSetDomainByID (gint32 domainid)
1342 MonoDomain *current_domain = mono_domain_get ();
1343 MonoDomain *domain = mono_domain_get_by_id (domainid);
1345 MONO_ARCH_SAVE_REGS;
1347 if (!domain || !mono_domain_set (domain, FALSE))
1348 mono_raise_exception (mono_get_exception_appdomain_unloaded ());
1350 return current_domain->domain;
1354 ves_icall_System_AppDomain_InternalPushDomainRef (MonoAppDomain *ad)
1356 MONO_ARCH_SAVE_REGS;
1358 mono_thread_push_appdomain_ref (ad->data);
1362 ves_icall_System_AppDomain_InternalPushDomainRefByID (gint32 domain_id)
1364 MonoDomain *domain = mono_domain_get_by_id (domain_id);
1366 MONO_ARCH_SAVE_REGS;
1370 * Raise an exception to prevent the managed code from executing a pop
1373 mono_raise_exception (mono_get_exception_appdomain_unloaded ());
1375 mono_thread_push_appdomain_ref (domain);
1379 ves_icall_System_AppDomain_InternalPopDomainRef (void)
1381 MONO_ARCH_SAVE_REGS;
1383 mono_thread_pop_appdomain_ref ();
1387 ves_icall_System_AppDomain_InternalGetContext ()
1389 MONO_ARCH_SAVE_REGS;
1391 return mono_context_get ();
1395 ves_icall_System_AppDomain_InternalGetDefaultContext ()
1397 MONO_ARCH_SAVE_REGS;
1399 return mono_domain_get ()->default_context;
1403 ves_icall_System_AppDomain_InternalSetContext (MonoAppContext *mc)
1405 MonoAppContext *old_context = mono_context_get ();
1407 MONO_ARCH_SAVE_REGS;
1409 mono_context_set (mc);
1415 ves_icall_System_AppDomain_InternalGetProcessGuid (MonoString* newguid)
1417 MonoDomain* mono_root_domain = mono_get_root_domain ();
1418 mono_domain_lock (mono_root_domain);
1419 if (process_guid_set) {
1420 mono_domain_unlock (mono_root_domain);
1421 return mono_string_new_utf16 (mono_domain_get (), process_guid, sizeof(process_guid)/2);
1423 memcpy (process_guid, mono_string_chars(newguid), sizeof(process_guid));
1424 process_guid_set = TRUE;
1425 mono_domain_unlock (mono_root_domain);
1430 mono_domain_is_unloading (MonoDomain *domain)
1432 if (domain->state == MONO_APPDOMAIN_UNLOADING || domain->state == MONO_APPDOMAIN_UNLOADED)
1439 clear_cached_vtable (gpointer key, gpointer value, gpointer user_data)
1441 MonoClass *klass = (MonoClass*)key;
1442 MonoDomain *domain = (MonoDomain*)user_data;
1443 MonoClassRuntimeInfo *runtime_info;
1445 runtime_info = klass->runtime_info;
1446 if (runtime_info && runtime_info->max_domain >= domain->domain_id)
1447 runtime_info->domain_vtables [domain->domain_id] = NULL;
1450 typedef struct unload_data {
1452 char *failure_reason;
1455 static guint32 WINAPI
1456 unload_thread_main (void *arg)
1458 unload_data *data = (unload_data*)arg;
1459 MonoDomain *domain = data->domain;
1462 * FIXME: Abort our parent thread last, so we can return a failure
1463 * indication if aborting times out.
1465 if (!mono_threads_abort_appdomain_threads (domain, 10000)) {
1466 data->failure_reason = g_strdup_printf ("Aborting of threads in domain %s timed out.", domain->friendly_name);
1470 /* Finalize all finalizable objects in the doomed appdomain */
1471 if (!mono_domain_finalize (domain, 10000)) {
1472 data->failure_reason = g_strdup_printf ("Finalization of domain %s timed out.", domain->friendly_name);
1476 /* Clear references to our vtables in class->runtime_info.
1477 * We also hold the loader lock because we're going to change
1478 * class->runtime_info.
1480 mono_domain_lock (domain);
1481 mono_loader_lock ();
1482 g_hash_table_foreach (domain->class_vtable_hash, clear_cached_vtable, domain);
1483 mono_loader_unlock ();
1484 mono_domain_unlock (domain);
1486 mono_threads_clear_cached_culture (domain);
1488 domain->state = MONO_APPDOMAIN_UNLOADED;
1490 /* printf ("UNLOADED %s.\n", domain->friendly_name); */
1492 /* remove from the handle table the items related to this domain */
1493 mono_gchandle_free_domain (domain);
1495 mono_domain_free (domain, FALSE);
1497 mono_gc_collect (mono_gc_max_generation ());
1503 * mono_domain_unload:
1504 * @domain: The domain to unload
1506 * Unloads an appdomain. Follows the process outlined in:
1507 * http://blogs.gotdotnet.com/cbrumme
1509 * If doing things the 'right' way is too hard or complex, we do it the
1510 * 'simple' way, which means do everything needed to avoid crashes and
1511 * memory leaks, but not much else.
1514 mono_domain_unload (MonoDomain *domain)
1516 HANDLE thread_handle;
1519 MonoAppDomainState prev_state;
1522 unload_data thread_data;
1523 MonoDomain *caller_domain = mono_domain_get ();
1525 /* printf ("UNLOAD STARTING FOR %s (%p) IN THREAD 0x%x.\n", domain->friendly_name, domain, GetCurrentThreadId ()); */
1527 /* Atomically change our state to UNLOADING */
1528 prev_state = InterlockedCompareExchange ((gint32*)&domain->state,
1529 MONO_APPDOMAIN_UNLOADING,
1530 MONO_APPDOMAIN_CREATED);
1531 if (prev_state != MONO_APPDOMAIN_CREATED) {
1532 if (prev_state == MONO_APPDOMAIN_UNLOADING)
1533 mono_raise_exception (mono_get_exception_cannot_unload_appdomain ("Appdomain is already being unloaded."));
1535 if (prev_state == MONO_APPDOMAIN_UNLOADED)
1536 mono_raise_exception (mono_get_exception_cannot_unload_appdomain ("Appdomain is already unloaded."));
1538 g_assert_not_reached ();
1541 mono_domain_set (domain, FALSE);
1542 /* Notify OnDomainUnload listeners */
1543 method = mono_class_get_method_from_name (domain->domain->mbr.obj.vtable->klass, "DoDomainUnload", -1);
1547 mono_runtime_invoke (method, domain->domain, NULL, &exc);
1549 /* Roll back the state change */
1550 domain->state = MONO_APPDOMAIN_CREATED;
1551 mono_domain_set (caller_domain, FALSE);
1552 mono_raise_exception ((MonoException*)exc);
1555 thread_data.domain = domain;
1556 thread_data.failure_reason = NULL;
1559 * First we create a separate thread for unloading, since
1560 * we might have to abort some threads, including the current one.
1563 * If we create a non-suspended thread, the runtime will hang.
1565 * http://bugzilla.ximian.com/show_bug.cgi?id=27663
1568 thread_handle = CreateThread (NULL, 0, unload_thread_main, &thread_data, 0, &tid);
1570 thread_handle = CreateThread (NULL, 0, (LPTHREAD_START_ROUTINE)unload_thread_main, &thread_data, CREATE_SUSPENDED, &tid);
1571 if (thread_handle == NULL) {
1574 ResumeThread (thread_handle);
1577 /* Wait for the thread */
1578 while ((res = WaitForSingleObjectEx (thread_handle, INFINITE, TRUE) == WAIT_IO_COMPLETION)) {
1579 if (mono_thread_has_appdomain_ref (mono_thread_current (), domain) && (mono_thread_interruption_requested ()))
1580 /* The unload thread tries to abort us */
1581 /* The icall wrapper will execute the abort */
1582 CloseHandle (thread_handle);
1585 CloseHandle (thread_handle);
1587 mono_domain_set (caller_domain, FALSE);
1589 if (thread_data.failure_reason) {
1592 /* Roll back the state change */
1593 domain->state = MONO_APPDOMAIN_CREATED;
1595 g_warning (thread_data.failure_reason);
1597 ex = mono_get_exception_cannot_unload_appdomain (thread_data.failure_reason);
1599 g_free (thread_data.failure_reason);
1600 thread_data.failure_reason = NULL;
1602 mono_raise_exception (ex);