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2010-05-11 Rodrigo Kumpera <rkumpera@novell.com>
[mono.git] / mono / metadata / appdomain.c
bloba50bbdf33a3af9b8753ca12d0096940f3ffd60cb
1 /*
2 * appdomain.c: AppDomain functions
3 *
4 * Authors:
5 * Dietmar Maurer (dietmar@ximian.com)
6 * Patrik Torstensson
7 * Gonzalo Paniagua Javier (gonzalo@ximian.com)
8 *
9 * Copyright 2001-2003 Ximian, Inc (http://www.ximian.com)
10 * Copyright 2004-2009 Novell, Inc (http://www.novell.com)
11 */
12 #undef ASSEMBLY_LOAD_DEBUG
13 #include <config.h>
14 #include <glib.h>
15 #include <string.h>
16 #ifdef HAVE_UNISTD_H
17 #include <unistd.h>
18 #endif
19 #include <errno.h>
20 #include <sys/stat.h>
21 #include <sys/types.h>
22 #ifdef HAVE_SYS_TIME_H
23 #include <sys/time.h>
24 #endif
25 #ifdef HAVE_UTIME_H
26 #include <utime.h>
27 #else
28 #ifdef HAVE_SYS_UTIME_H
29 #include <sys/utime.h>
30 #endif
31 #endif
32
33 #include <mono/metadata/gc-internal.h>
34 #include <mono/metadata/object.h>
35 #include <mono/metadata/domain-internals.h>
36 #include "mono/metadata/metadata-internals.h"
37 #include <mono/metadata/assembly.h>
38 #include <mono/metadata/exception.h>
39 #include <mono/metadata/threads.h>
40 #include <mono/metadata/socket-io.h>
41 #include <mono/metadata/tabledefs.h>
42 #include <mono/metadata/gc-internal.h>
43 #include <mono/metadata/mono-gc.h>
44 #include <mono/metadata/marshal.h>
45 #include <mono/metadata/monitor.h>
46 #include <mono/metadata/threadpool.h>
47 #include <mono/metadata/mono-debug.h>
48 #include <mono/metadata/mono-debug-debugger.h>
49 #include <mono/metadata/attach.h>
50 #include <mono/metadata/file-io.h>
51 #include <mono/metadata/lock-tracer.h>
52 #include <mono/metadata/console-io.h>
53 #include <mono/metadata/threads-types.h>
54 #include <mono/metadata/tokentype.h>
55 #include <mono/utils/mono-uri.h>
56 #include <mono/utils/mono-logger-internal.h>
57 #include <mono/utils/mono-path.h>
58 #include <mono/utils/mono-stdlib.h>
59 #include <mono/utils/mono-io-portability.h>
60 #include <mono/utils/mono-error-internals.h>
61 #ifdef HOST_WIN32
62 #include <direct.h>
63 #endif
64
65 /*
66 * This is the version number of the corlib-runtime interface. When
67 * making changes to this interface (by changing the layout
68 * of classes the runtime knows about, changing icall signature or
69 * semantics etc), increment this variable. Also increment the
70 * pair of this variable in mscorlib in:
71 * mcs/class/mscorlib/System/Environment.cs
72 *
73 * Changes which are already detected at runtime, like the addition
74 * of icalls, do not require an increment.
75 */
76 #define MONO_CORLIB_VERSION 90
77
78 typedef struct
79 {
80 int runtime_count;
81 int assemblybinding_count;
82 MonoDomain *domain;
83 gchar *filename;
84 } RuntimeConfig;
85
86 CRITICAL_SECTION mono_delegate_section;
87
88 #ifdef _EGLIB_MAJOR
89 /* Need to lock here because EGLIB has locking defined as no-ops, we can not depend on mono_strtod do the right locking */
90 /* Ideally this will be fixed in eglib */
91 CRITICAL_SECTION mono_strtod_mutex;
92 #endif
93
94
95 static gunichar2 process_guid [36];
96 static gboolean process_guid_set = FALSE;
97
98 static gboolean shutting_down = FALSE;
99
100 static gboolean no_exec = FALSE;
101
102 static MonoAssembly *
103 mono_domain_assembly_preload (MonoAssemblyName *aname,
104 gchar **assemblies_path,
105 gpointer user_data);
106
107 static MonoAssembly *
108 mono_domain_assembly_search (MonoAssemblyName *aname,
109 gpointer user_data);
110
111 static MonoAssembly *
112 mono_domain_assembly_postload_search (MonoAssemblyName *aname,
113 gpointer user_data);
114
115 static void
116 mono_domain_fire_assembly_load (MonoAssembly *assembly, gpointer user_data);
117
118 static void
119 add_assemblies_to_domain (MonoDomain *domain, MonoAssembly *ass, GHashTable *hash);
120
121 static MonoAppDomain *
122 mono_domain_create_appdomain_internal (char *friendly_name, MonoAppDomainSetup *setup);
123
124 static char *
125 get_shadow_assembly_location_base (MonoDomain *domain, MonoError *error);
126
127 static MonoLoadFunc load_function = NULL;
128
129 void
130 mono_install_runtime_load (MonoLoadFunc func)
131 {
132 load_function = func;
133 }
134
135 MonoDomain*
136 mono_runtime_load (const char *filename, const char *runtime_version)
137 {
138 g_assert (load_function);
139 return load_function (filename, runtime_version);
140 }
141
142 /**
143 * mono_runtime_set_no_exec:
144 *
145 * Instructs the runtime to operate in static mode, i.e. avoid/do not
146 * allow managed code execution. This is useful for running the AOT
147 * compiler on platforms which allow full-aot execution only. This
148 * should be called before mono_runtime_init ().
149 */
150 void
151 mono_runtime_set_no_exec (gboolean val)
152 {
153 no_exec = val;
154 }
155
156 /**
157 * mono_runtime_get_no_exec:
158 *
159 * If true, then the runtime will not allow managed code execution.
160 */
161 gboolean
162 mono_runtime_get_no_exec (void)
163 {
164 return no_exec;
165 }
166
167 static void
168 create_domain_objects (MonoDomain *domain)
169 {
170 MonoDomain *old_domain = mono_domain_get ();
171 MonoString *arg;
172
173 if (domain != old_domain) {
174 mono_thread_push_appdomain_ref (domain);
175 mono_domain_set_internal_with_options (domain, FALSE);
176 }
177
178 /*
179 * Create an instance early since we can't do it when there is no memory.
180 */
181 arg = mono_string_new (domain, "Out of memory");
182 domain->out_of_memory_ex = mono_exception_from_name_two_strings (mono_defaults.corlib, "System", "OutOfMemoryException", arg, NULL);
183
184 /*
185 * These two are needed because the signal handlers might be executing on
186 * an alternate stack, and Boehm GC can't handle that.
187 */
188 arg = mono_string_new (domain, "A null value was found where an object instance was required");
189 domain->null_reference_ex = mono_exception_from_name_two_strings (mono_defaults.corlib, "System", "NullReferenceException", arg, NULL);
190 arg = mono_string_new (domain, "The requested operation caused a stack overflow.");
191 domain->stack_overflow_ex = mono_exception_from_name_two_strings (mono_defaults.corlib, "System", "StackOverflowException", arg, NULL);
192
193 /*The ephemeron tombstone i*/
194 domain->ephemeron_tombstone = mono_object_new (domain, mono_defaults.object_class);
195
196 if (domain != old_domain) {
197 mono_thread_pop_appdomain_ref ();
198 mono_domain_set_internal_with_options (old_domain, FALSE);
199 }
200
201 /*
202 * This class is used during exception handling, so initialize it here, to prevent
203 * stack overflows while handling stack overflows.
204 */
205 mono_class_init (mono_array_class_get (mono_defaults.int_class, 1));
206 }
207
208 /**
209 * mono_runtime_init:
210 * @domain: domain returned by mono_init ()
211 *
212 * Initialize the core AppDomain: this function will run also some
213 * IL initialization code, so it needs the execution engine to be fully
214 * operational.
215 *
216 * AppDomain.SetupInformation is set up in mono_runtime_exec_main, where
217 * we know the entry_assembly.
218 *
219 */
220 void
221 mono_runtime_init (MonoDomain *domain, MonoThreadStartCB start_cb,
222 MonoThreadAttachCB attach_cb)
223 {
224 MonoAppDomainSetup *setup;
225 MonoAppDomain *ad;
226 MonoClass *class;
227
228 mono_portability_helpers_init ();
229
230 mono_gc_base_init ();
231 mono_monitor_init ();
232 mono_thread_pool_init ();
233 mono_marshal_init ();
234
235 mono_install_assembly_preload_hook (mono_domain_assembly_preload, GUINT_TO_POINTER (FALSE));
236 mono_install_assembly_refonly_preload_hook (mono_domain_assembly_preload, GUINT_TO_POINTER (TRUE));
237 mono_install_assembly_search_hook (mono_domain_assembly_search, GUINT_TO_POINTER (FALSE));
238 mono_install_assembly_refonly_search_hook (mono_domain_assembly_search, GUINT_TO_POINTER (TRUE));
239 mono_install_assembly_postload_search_hook (mono_domain_assembly_postload_search, GUINT_TO_POINTER (FALSE));
240 mono_install_assembly_postload_refonly_search_hook (mono_domain_assembly_postload_search, GUINT_TO_POINTER (TRUE));
241 mono_install_assembly_load_hook (mono_domain_fire_assembly_load, NULL);
242 mono_install_lookup_dynamic_token (mono_reflection_lookup_dynamic_token);
243
244 mono_thread_init (start_cb, attach_cb);
245
246 class = mono_class_from_name (mono_defaults.corlib, "System", "AppDomainSetup");
247 setup = (MonoAppDomainSetup *) mono_object_new (domain, class);
248
249 class = mono_class_from_name (mono_defaults.corlib, "System", "AppDomain");
250 ad = (MonoAppDomain *) mono_object_new (domain, class);
251 ad->data = domain;
252 domain->domain = ad;
253 domain->setup = setup;
254
255 InitializeCriticalSection (&mono_delegate_section);
256
257 #ifdef _EGLIB_MAJOR
258 /* Needed until EGLIB is fixed #464316 */
259 InitializeCriticalSection (&mono_strtod_mutex);
260 #endif
261
262 mono_thread_attach (domain);
263 mono_context_init (domain);
264 mono_context_set (domain->default_context);
265
266 mono_type_initialization_init ();
267
268 if (!mono_runtime_get_no_exec ())
269 create_domain_objects (domain);
270
271 /* GC init has to happen after thread init */
272 mono_gc_init ();
273
274 #ifndef DISABLE_SOCKETS
275 mono_network_init ();
276 #endif
277
278 mono_console_init ();
279 mono_attach_init ();
280
281 mono_locks_tracer_init ();
282
283 /* mscorlib is loaded before we install the load hook */
284 mono_domain_fire_assembly_load (mono_defaults.corlib->assembly, NULL);
285
286 return;
287 }
288
289 static int
290 mono_get_corlib_version (void)
291 {
292 MonoClass *klass;
293 MonoClassField *field;
294 MonoObject *value;
295
296 klass = mono_class_from_name (mono_defaults.corlib, "System", "Environment");
297 mono_class_init (klass);
298 field = mono_class_get_field_from_name (klass, "mono_corlib_version");
299 if (!field)
300 return -1;
301 if (! (field->type->attrs & FIELD_ATTRIBUTE_STATIC))
302 return -1;
303 value = mono_field_get_value_object (mono_domain_get (), field, NULL);
304 return *(gint32*)((gchar*)value + sizeof (MonoObject));
305 }
306
307 /**
308 * mono_check_corlib_version
309 *
310 * Checks that the corlib that is loaded matches the version of this runtime.
311 *
312 * Returns: NULL if the runtime will work with the corlib, or a g_malloc
313 * allocated string with the error otherwise.
314 */
315 const char*
316 mono_check_corlib_version (void)
317 {
318 int version = mono_get_corlib_version ();
319 if (version != MONO_CORLIB_VERSION)
320 return g_strdup_printf ("expected corlib version %d, found %d.", MONO_CORLIB_VERSION, version);
321 else
322 return NULL;
323 }
324
325 /**
326 * mono_context_init:
327 * @domain: The domain where the System.Runtime.Remoting.Context.Context is initialized
328 *
329 * Initializes the @domain's default System.Runtime.Remoting's Context.
330 */
331 void
332 mono_context_init (MonoDomain *domain)
333 {
334 MonoClass *class;
335 MonoAppContext *context;
336
337 class = mono_class_from_name (mono_defaults.corlib, "System.Runtime.Remoting.Contexts", "Context");
338 context = (MonoAppContext *) mono_object_new (domain, class);
339 context->domain_id = domain->domain_id;
340 context->context_id = 0;
341 domain->default_context = context;
342 }
343
344 /**
345 * mono_runtime_cleanup:
346 * @domain: unused.
347 *
348 * Internal routine.
349 *
350 * This must not be called while there are still running threads executing
351 * managed code.
352 */
353 void
354 mono_runtime_cleanup (MonoDomain *domain)
355 {
356 shutting_down = TRUE;
357
358 mono_attach_cleanup ();
359
360 /* This ends up calling any pending pending (for at most 2 seconds) */
361 mono_gc_cleanup ();
362
363 mono_thread_cleanup ();
364
365 #ifndef DISABLE_SOCKETS
366 mono_network_cleanup ();
367 #endif
368 mono_marshal_cleanup ();
369
370 mono_type_initialization_cleanup ();
371
372 mono_monitor_cleanup ();
373
374 #ifndef HOST_WIN32
375 _wapi_cleanup ();
376 #endif
377 }
378
379 static MonoDomainFunc quit_function = NULL;
380
381 void
382 mono_install_runtime_cleanup (MonoDomainFunc func)
383 {
384 quit_function = func;
385 }
386
387 void
388 mono_runtime_quit ()
389 {
390 if (quit_function != NULL)
391 quit_function (mono_get_root_domain (), NULL);
392 }
393
394 /**
395 * mono_runtime_set_shutting_down:
396 *
397 * Invoked by System.Environment.Exit to flag that the runtime
398 * is shutting down.
399 */
400 void
401 mono_runtime_set_shutting_down (void)
402 {
403 shutting_down = TRUE;
404 }
405
406 /**
407 * mono_runtime_is_shutting_down:
408 *
409 * Returns whether the runtime has been flagged for shutdown.
410 *
411 * This is consumed by the P:System.Environment.HasShutdownStarted
412 * property.
413 *
414 */
415 gboolean
416 mono_runtime_is_shutting_down (void)
417 {
418 return shutting_down;
419 }
420
421 /**
422 * mono_domain_create_appdomain:
423 * @friendly_name: The friendly name of the appdomain to create
424 * @configuration_file: The configuration file to initialize the appdomain with
425 *
426 * Returns a MonoDomain initialized with the appdomain
427 */
428 MonoDomain *
429 mono_domain_create_appdomain (char *friendly_name, char *configuration_file)
430 {
431 MonoAppDomain *ad;
432 MonoAppDomainSetup *setup;
433 MonoClass *class;
434
435 class = mono_class_from_name (mono_defaults.corlib, "System", "AppDomainSetup");
436 setup = (MonoAppDomainSetup *) mono_object_new (mono_domain_get (), class);
437 setup->configuration_file = configuration_file != NULL ? mono_string_new (mono_domain_get (), configuration_file) : NULL;
438
439 ad = mono_domain_create_appdomain_internal (friendly_name, setup);
440
441 return mono_domain_from_appdomain (ad);
442 }
443
444 static MonoAppDomainSetup*
445 copy_app_domain_setup (MonoDomain *domain, MonoAppDomainSetup *setup)
446 {
447 MonoDomain *caller_domain = mono_domain_get ();
448 MonoClass *ads_class = mono_class_from_name (mono_defaults.corlib, "System", "AppDomainSetup");
449 MonoAppDomainSetup *copy = (MonoAppDomainSetup*)mono_object_new (domain, ads_class);
450
451 mono_domain_set_internal (domain);
452
453 MONO_OBJECT_SETREF (copy, application_base, mono_marshal_xdomain_copy_value ((MonoObject*)setup->application_base));
454 MONO_OBJECT_SETREF (copy, application_name, mono_marshal_xdomain_copy_value ((MonoObject*)setup->application_name));
455 MONO_OBJECT_SETREF (copy, cache_path, mono_marshal_xdomain_copy_value ((MonoObject*)setup->cache_path));
456 MONO_OBJECT_SETREF (copy, configuration_file, mono_marshal_xdomain_copy_value ((MonoObject*)setup->configuration_file));
457 MONO_OBJECT_SETREF (copy, dynamic_base, mono_marshal_xdomain_copy_value ((MonoObject*)setup->dynamic_base));
458 MONO_OBJECT_SETREF (copy, license_file, mono_marshal_xdomain_copy_value ((MonoObject*)setup->license_file));
459 MONO_OBJECT_SETREF (copy, private_bin_path, mono_marshal_xdomain_copy_value ((MonoObject*)setup->private_bin_path));
460 MONO_OBJECT_SETREF (copy, private_bin_path_probe, mono_marshal_xdomain_copy_value ((MonoObject*)setup->private_bin_path_probe));
461 MONO_OBJECT_SETREF (copy, shadow_copy_directories, mono_marshal_xdomain_copy_value ((MonoObject*)setup->shadow_copy_directories));
462 MONO_OBJECT_SETREF (copy, shadow_copy_files, mono_marshal_xdomain_copy_value ((MonoObject*)setup->shadow_copy_files));
463 copy->publisher_policy = setup->publisher_policy;
464 copy->path_changed = setup->path_changed;
465 copy->loader_optimization = setup->loader_optimization;
466 copy->disallow_binding_redirects = setup->disallow_binding_redirects;
467 copy->disallow_code_downloads = setup->disallow_code_downloads;
468 MONO_OBJECT_SETREF (copy, domain_initializer_args, mono_marshal_xdomain_copy_value ((MonoObject*)setup->domain_initializer_args));
469 copy->disallow_appbase_probe = setup->disallow_appbase_probe;
470 MONO_OBJECT_SETREF (copy, application_trust, mono_marshal_xdomain_copy_value ((MonoObject*)setup->application_trust));
471 MONO_OBJECT_SETREF (copy, configuration_bytes, mono_marshal_xdomain_copy_value ((MonoObject*)setup->configuration_bytes));
472 MONO_OBJECT_SETREF (copy, serialized_non_primitives, mono_marshal_xdomain_copy_value ((MonoObject*)setup->serialized_non_primitives));
473
474 mono_domain_set_internal (caller_domain);
475
476 return copy;
477 }
478
479 static MonoAppDomain *
480 mono_domain_create_appdomain_internal (char *friendly_name, MonoAppDomainSetup *setup)
481 {
482 MonoError error;
483 MonoClass *adclass;
484 MonoAppDomain *ad;
485 MonoDomain *data;
486 char *shadow_location;
487
488 MONO_ARCH_SAVE_REGS;
489
490 adclass = mono_class_from_name (mono_defaults.corlib, "System", "AppDomain");
491
492 /* FIXME: pin all those objects */
493 data = mono_domain_create();
494
495 ad = (MonoAppDomain *) mono_object_new (data, adclass);
496 ad->data = data;
497 data->domain = ad;
498 data->friendly_name = g_strdup (friendly_name);
499
500 if (!setup->application_base) {
501 /* Inherit from the root domain since MS.NET does this */
502 MonoDomain *root = mono_get_root_domain ();
503 if (root->setup->application_base)
504 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)));
505 }
506
507 mono_context_init (data);
508
509 data->setup = copy_app_domain_setup (data, setup);
510 mono_set_private_bin_path_from_config (data);
511 add_assemblies_to_domain (data, mono_defaults.corlib->assembly, NULL);
512
513 #ifndef DISABLE_SHADOW_COPY
514 /*FIXME, guard this for when the debugger is not running */
515 shadow_location = get_shadow_assembly_location_base (data, &error);
516 if (!mono_error_ok (&error))
517 mono_error_raise_exception (&error);
518 mono_debugger_event_create_appdomain (data, shadow_location);
519 g_free (shadow_location);
520 #endif
521
522 create_domain_objects (data);
523
524 return ad;
525 }
526
527 /**
528 * mono_domain_has_type_resolve:
529 * @domain: application domains being looked up
530 *
531 * Returns true if the AppDomain.TypeResolve field has been
532 * set.
533 */
534 gboolean
535 mono_domain_has_type_resolve (MonoDomain *domain)
536 {
537 static MonoClassField *field = NULL;
538 MonoObject *o;
539
540 if (field == NULL) {
541 field = mono_class_get_field_from_name (mono_defaults.appdomain_class, "TypeResolve");
542 g_assert (field);
543 }
544
545 /*pedump doesn't create an appdomin, so the domain object doesn't exist.*/
546 if (!domain->domain)
547 return FALSE;
548
549 mono_field_get_value ((MonoObject*)(domain->domain), field, &o);
550 return o != NULL;
551 }
552
553 /**
554 * mono_domain_try_type_resolve:
555 * @domain: application domainwhere the name where the type is going to be resolved
556 * @name: the name of the type to resolve or NULL.
557 * @tb: A System.Reflection.Emit.TypeBuilder, used if name is NULL.
558 *
559 * This routine invokes the internal System.AppDomain.DoTypeResolve and returns
560 * the assembly that matches name.
561 *
562 * If @name is null, the value of ((TypeBuilder)tb).FullName is used instead
563 *
564 * Returns: A MonoReflectionAssembly or NULL if not found
565 */
566 MonoReflectionAssembly *
567 mono_domain_try_type_resolve (MonoDomain *domain, char *name, MonoObject *tb)
568 {
569 MonoClass *klass;
570 void *params [1];
571 static MonoMethod *method = NULL;
572
573 g_assert (domain != NULL && ((name != NULL) || (tb != NULL)));
574
575 if (method == NULL) {
576 klass = domain->domain->mbr.obj.vtable->klass;
577 g_assert (klass);
578
579 method = mono_class_get_method_from_name (klass, "DoTypeResolve", -1);
580 if (method == NULL) {
581 g_warning ("Method AppDomain.DoTypeResolve not found.\n");
582 return NULL;
583 }
584 }
585
586 if (name)
587 *params = (MonoObject*)mono_string_new (mono_domain_get (), name);
588 else
589 *params = tb;
590 return (MonoReflectionAssembly *) mono_runtime_invoke (method, domain->domain, params, NULL);
591 }
592
593 /**
594 * mono_domain_owns_vtable_slot:
595 *
596 * Returns whenever VTABLE_SLOT is inside a vtable which belongs to DOMAIN.
597 */
598 gboolean
599 mono_domain_owns_vtable_slot (MonoDomain *domain, gpointer vtable_slot)
600 {
601 gboolean res;
602
603 mono_domain_lock (domain);
604 res = mono_mempool_contains_addr (domain->mp, vtable_slot);
605 mono_domain_unlock (domain);
606 return res;
607 }
608
609 /**
610 * mono_domain_set:
611 * @domain: domain
612 * @force: force setting.
613 *
614 * Set the current appdomain to @domain. If @force is set, set it even
615 * if it is being unloaded.
616 *
617 * Returns:
618 * TRUE on success;
619 * FALSE if the domain is unloaded
620 */
621 gboolean
622 mono_domain_set (MonoDomain *domain, gboolean force)
623 {
624 if (!force && domain->state == MONO_APPDOMAIN_UNLOADED)
625 return FALSE;
626
627 mono_domain_set_internal (domain);
628
629 return TRUE;
630 }
631
632 MonoObject *
633 ves_icall_System_AppDomain_GetData (MonoAppDomain *ad, MonoString *name)
634 {
635 MonoDomain *add;
636 MonoObject *o;
637 char *str;
638
639 MONO_ARCH_SAVE_REGS;
640
641 g_assert (ad != NULL);
642 add = ad->data;
643 g_assert (add != NULL);
644
645 if (name == NULL)
646 mono_raise_exception (mono_get_exception_argument_null ("name"));
647
648 str = mono_string_to_utf8 (name);
649
650 mono_domain_lock (add);
651
652 if (!strcmp (str, "APPBASE"))
653 o = (MonoObject *)add->setup->application_base;
654 else if (!strcmp (str, "APP_CONFIG_FILE"))
655 o = (MonoObject *)add->setup->configuration_file;
656 else if (!strcmp (str, "DYNAMIC_BASE"))
657 o = (MonoObject *)add->setup->dynamic_base;
658 else if (!strcmp (str, "APP_NAME"))
659 o = (MonoObject *)add->setup->application_name;
660 else if (!strcmp (str, "CACHE_BASE"))
661 o = (MonoObject *)add->setup->cache_path;
662 else if (!strcmp (str, "PRIVATE_BINPATH"))
663 o = (MonoObject *)add->setup->private_bin_path;
664 else if (!strcmp (str, "BINPATH_PROBE_ONLY"))
665 o = (MonoObject *)add->setup->private_bin_path_probe;
666 else if (!strcmp (str, "SHADOW_COPY_DIRS"))
667 o = (MonoObject *)add->setup->shadow_copy_directories;
668 else if (!strcmp (str, "FORCE_CACHE_INSTALL"))
669 o = (MonoObject *)add->setup->shadow_copy_files;
670 else
671 o = mono_g_hash_table_lookup (add->env, name);
672
673 mono_domain_unlock (add);
674 g_free (str);
675
676 if (!o)
677 return NULL;
678
679 return o;
680 }
681
682 void
683 ves_icall_System_AppDomain_SetData (MonoAppDomain *ad, MonoString *name, MonoObject *data)
684 {
685 MonoDomain *add;
686
687 MONO_ARCH_SAVE_REGS;
688
689 g_assert (ad != NULL);
690 add = ad->data;
691 g_assert (add != NULL);
692
693 if (name == NULL)
694 mono_raise_exception (mono_get_exception_argument_null ("name"));
695
696 mono_domain_lock (add);
697
698 mono_g_hash_table_insert (add->env, name, data);
699
700 mono_domain_unlock (add);
701 }
702
703 MonoAppDomainSetup *
704 ves_icall_System_AppDomain_getSetup (MonoAppDomain *ad)
705 {
706 MONO_ARCH_SAVE_REGS;
707
708 g_assert (ad != NULL);
709 g_assert (ad->data != NULL);
710
711 return ad->data->setup;
712 }
713
714 MonoString *
715 ves_icall_System_AppDomain_getFriendlyName (MonoAppDomain *ad)
716 {
717 MONO_ARCH_SAVE_REGS;
718
719 g_assert (ad != NULL);
720 g_assert (ad->data != NULL);
721
722 return mono_string_new (ad->data, ad->data->friendly_name);
723 }
724
725 MonoAppDomain *
726 ves_icall_System_AppDomain_getCurDomain ()
727 {
728 MonoDomain *add = mono_domain_get ();
729
730 MONO_ARCH_SAVE_REGS;
731
732 return add->domain;
733 }
734
735 MonoAppDomain *
736 ves_icall_System_AppDomain_getRootDomain ()
737 {
738 MonoDomain *root = mono_get_root_domain ();
739
740 MONO_ARCH_SAVE_REGS;
741
742 return root->domain;
743 }
744
745 static char*
746 get_attribute_value (const gchar **attribute_names,
747 const gchar **attribute_values,
748 const char *att_name)
749 {
750 int n;
751 for (n = 0; attribute_names [n] != NULL; n++) {
752 if (strcmp (attribute_names [n], att_name) == 0)
753 return g_strdup (attribute_values [n]);
754 }
755 return NULL;
756 }
757
758 static void
759 start_element (GMarkupParseContext *context,
760 const gchar *element_name,
761 const gchar **attribute_names,
762 const gchar **attribute_values,
763 gpointer user_data,
764 GError **error)
765 {
766 RuntimeConfig *runtime_config = user_data;
767
768 if (strcmp (element_name, "runtime") == 0) {
769 runtime_config->runtime_count++;
770 return;
771 }
772
773 if (strcmp (element_name, "assemblyBinding") == 0) {
774 runtime_config->assemblybinding_count++;
775 return;
776 }
777
778 if (runtime_config->runtime_count != 1 || runtime_config->assemblybinding_count != 1)
779 return;
780
781 if (strcmp (element_name, "probing") != 0)
782 return;
783
784 g_free (runtime_config->domain->private_bin_path);
785 runtime_config->domain->private_bin_path = get_attribute_value (attribute_names, attribute_values, "privatePath");
786 if (runtime_config->domain->private_bin_path && !runtime_config->domain->private_bin_path [0]) {
787 g_free (runtime_config->domain->private_bin_path);
788 runtime_config->domain->private_bin_path = NULL;
789 return;
790 }
791 }
792
793 static void
794 end_element (GMarkupParseContext *context,
795 const gchar *element_name,
796 gpointer user_data,
797 GError **error)
798 {
799 RuntimeConfig *runtime_config = user_data;
800 if (strcmp (element_name, "runtime") == 0)
801 runtime_config->runtime_count--;
802 else if (strcmp (element_name, "assemblyBinding") == 0)
803 runtime_config->assemblybinding_count--;
804 }
805
806 static void
807 parse_error (GMarkupParseContext *context, GError *error, gpointer user_data)
808 {
809 RuntimeConfig *state = user_data;
810 const gchar *msg;
811 const gchar *filename;
812
813 filename = state && state->filename ? (gchar *) state->filename : "<unknown>";
814 msg = error && error->message ? error->message : "";
815 g_warning ("Error parsing %s: %s", filename, msg);
816 }
817
818 static const GMarkupParser
819 mono_parser = {
820 start_element,
821 end_element,
822 NULL,
823 NULL,
824 parse_error
825 };
826
827 void
828 mono_set_private_bin_path_from_config (MonoDomain *domain)
829 {
830 MonoError error;
831 gchar *config_file, *text;
832 gsize len;
833 GMarkupParseContext *context;
834 RuntimeConfig runtime_config;
835 gint offset;
836
837 if (!domain || !domain->setup || !domain->setup->configuration_file)
838 return;
839
840 config_file = mono_string_to_utf8_checked (domain->setup->configuration_file, &error);
841 if (!mono_error_ok (&error)) {
842 mono_error_cleanup (&error);
843 return;
844 }
845
846 if (!g_file_get_contents (config_file, &text, &len, NULL)) {
847 g_free (config_file);
848 return;
849 }
850
851 runtime_config.runtime_count = 0;
852 runtime_config.assemblybinding_count = 0;
853 runtime_config.domain = domain;
854 runtime_config.filename = config_file;
855
856 offset = 0;
857 if (len > 3 && text [0] == '\xef' && text [1] == (gchar) '\xbb' && text [2] == '\xbf')
858 offset = 3; /* Skip UTF-8 BOM */
859
860 context = g_markup_parse_context_new (&mono_parser, 0, &runtime_config, NULL);
861 if (g_markup_parse_context_parse (context, text + offset, len - offset, NULL))
862 g_markup_parse_context_end_parse (context, NULL);
863 g_markup_parse_context_free (context);
864 g_free (text);
865 g_free (config_file);
866 }
867
868 MonoAppDomain *
869 ves_icall_System_AppDomain_createDomain (MonoString *friendly_name, MonoAppDomainSetup *setup)
870 {
871 char *fname = mono_string_to_utf8 (friendly_name);
872 MonoAppDomain *ad = mono_domain_create_appdomain_internal (fname, setup);
873
874 g_free (fname);
875
876 return ad;
877 }
878
879 MonoArray *
880 ves_icall_System_AppDomain_GetAssemblies (MonoAppDomain *ad, MonoBoolean refonly)
881 {
882 MonoDomain *domain = ad->data;
883 MonoAssembly* ass;
884 static MonoClass *System_Reflection_Assembly;
885 MonoArray *res;
886 GSList *tmp;
887 int i;
888 GPtrArray *assemblies;
889
890 MONO_ARCH_SAVE_REGS;
891
892 if (!System_Reflection_Assembly)
893 System_Reflection_Assembly = mono_class_from_name (
894 mono_defaults.corlib, "System.Reflection", "Assembly");
895
896 /*
897 * Make a copy of the list of assemblies because we can't hold the assemblies
898 * lock while creating objects etc.
899 */
900 assemblies = g_ptr_array_new ();
901 /* Need to skip internal assembly builders created by remoting */
902 mono_domain_assemblies_lock (domain);
903 for (tmp = domain->domain_assemblies; tmp; tmp = tmp->next) {
904 ass = tmp->data;
905 if (refonly != ass->ref_only)
906 continue;
907 if (ass->corlib_internal)
908 continue;
909 g_ptr_array_add (assemblies, ass);
910 }
911 mono_domain_assemblies_unlock (domain);
912
913 res = mono_array_new (domain, System_Reflection_Assembly, assemblies->len);
914 for (i = 0; i < assemblies->len; ++i) {
915 ass = g_ptr_array_index (assemblies, i);
916 mono_array_setref (res, i, mono_assembly_get_object (domain, ass));
917 }
918
919 g_ptr_array_free (assemblies, TRUE);
920
921 return res;
922 }
923
924 MonoReflectionAssembly *
925 mono_try_assembly_resolve (MonoDomain *domain, MonoString *fname, gboolean refonly)
926 {
927 MonoClass *klass;
928 MonoMethod *method;
929 MonoBoolean isrefonly;
930 gpointer params [2];
931
932 if (mono_runtime_get_no_exec ())
933 return NULL;
934
935 g_assert (domain != NULL && fname != NULL);
936
937 klass = domain->domain->mbr.obj.vtable->klass;
938 g_assert (klass);
939
940 method = mono_class_get_method_from_name (klass, "DoAssemblyResolve", -1);
941 if (method == NULL) {
942 g_warning ("Method AppDomain.DoAssemblyResolve not found.\n");
943 return NULL;
944 }
945
946 isrefonly = refonly ? 1 : 0;
947 params [0] = fname;
948 params [1] = &isrefonly;
949 return (MonoReflectionAssembly *) mono_runtime_invoke (method, domain->domain, params, NULL);
950 }
951
952 static MonoAssembly *
953 mono_domain_assembly_postload_search (MonoAssemblyName *aname,
954 gpointer user_data)
955 {
956 gboolean refonly = GPOINTER_TO_UINT (user_data);
957 MonoReflectionAssembly *assembly;
958 MonoDomain *domain = mono_domain_get ();
959 char *aname_str;
960 MonoString *str;
961
962 aname_str = mono_stringify_assembly_name (aname);
963
964 /* FIXME: We invoke managed code here, so there is a potential for deadlocks */
965 str = mono_string_new (domain, aname_str);
966 if (!str) {
967 g_free (aname_str);
968 return NULL;
969 }
970 assembly = mono_try_assembly_resolve (domain, str, refonly);
971 g_free (aname_str);
972
973 if (assembly)
974 return assembly->assembly;
975 else
976 return NULL;
977 }
978
979 /*
980 * LOCKING: assumes assemblies_lock in the domain is already locked.
981 */
982 static void
983 add_assemblies_to_domain (MonoDomain *domain, MonoAssembly *ass, GHashTable *ht)
984 {
985 gint i;
986 GSList *tmp;
987 gboolean destroy_ht = FALSE;
988
989 if (!ass->aname.name)
990 return;
991
992 if (!ht) {
993 ht = g_hash_table_new (mono_aligned_addr_hash, NULL);
994 destroy_ht = TRUE;
995 }
996
997 /* FIXME: handle lazy loaded assemblies */
998 for (tmp = domain->domain_assemblies; tmp; tmp = tmp->next) {
999 g_hash_table_insert (ht, tmp->data, tmp->data);
1000 }
1001 if (!g_hash_table_lookup (ht, ass)) {
1002 mono_assembly_addref (ass);
1003 g_hash_table_insert (ht, ass, ass);
1004 domain->domain_assemblies = g_slist_prepend (domain->domain_assemblies, ass);
1005 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);
1006 }
1007
1008 if (ass->image->references) {
1009 for (i = 0; ass->image->references [i] != NULL; i++) {
1010 if (ass->image->references [i] != REFERENCE_MISSING)
1011 if (!g_hash_table_lookup (ht, ass->image->references [i])) {
1012 add_assemblies_to_domain (domain, ass->image->references [i], ht);
1013 }
1014 }
1015 }
1016 if (destroy_ht)
1017 g_hash_table_destroy (ht);
1018 }
1019
1020 static void
1021 mono_domain_fire_assembly_load (MonoAssembly *assembly, gpointer user_data)
1022 {
1023 static MonoClassField *assembly_load_field;
1024 static MonoMethod *assembly_load_method;
1025 MonoDomain *domain = mono_domain_get ();
1026 MonoReflectionAssembly *ref_assembly;
1027 MonoClass *klass;
1028 gpointer load_value;
1029 void *params [1];
1030
1031 if (!domain->domain)
1032 /* This can happen during startup */
1033 return;
1034 #ifdef ASSEMBLY_LOAD_DEBUG
1035 fprintf (stderr, "Loading %s into domain %s\n", assembly->aname.name, domain->friendly_name);
1036 #endif
1037 klass = domain->domain->mbr.obj.vtable->klass;
1038
1039 mono_domain_assemblies_lock (domain);
1040 add_assemblies_to_domain (domain, assembly, NULL);
1041 mono_domain_assemblies_unlock (domain);
1042
1043 if (assembly_load_field == NULL) {
1044 assembly_load_field = mono_class_get_field_from_name (klass, "AssemblyLoad");
1045 g_assert (assembly_load_field);
1046 }
1047
1048 mono_field_get_value ((MonoObject*) domain->domain, assembly_load_field, &load_value);
1049 if (load_value == NULL) {
1050 /* No events waiting to be triggered */
1051 return;
1052 }
1053
1054 ref_assembly = mono_assembly_get_object (domain, assembly);
1055 g_assert (ref_assembly);
1056
1057 if (assembly_load_method == NULL) {
1058 assembly_load_method = mono_class_get_method_from_name (klass, "DoAssemblyLoad", -1);
1059 g_assert (assembly_load_method);
1060 }
1061
1062 *params = ref_assembly;
1063 mono_runtime_invoke (assembly_load_method, domain->domain, params, NULL);
1064 }
1065
1066 /*
1067 * LOCKING: Acquires the domain assemblies lock.
1068 */
1069 static void
1070 set_domain_search_path (MonoDomain *domain)
1071 {
1072 MonoError error;
1073 MonoAppDomainSetup *setup;
1074 gchar **tmp;
1075 gchar *search_path = NULL;
1076 gint i;
1077 gint npaths = 0;
1078 gchar **pvt_split = NULL;
1079 GError *gerror = NULL;
1080 gint appbaselen = -1;
1081
1082 /*
1083 * We use the low-level domain assemblies lock, since this is called from
1084 * assembly loads hooks, which means this thread might hold the loader lock.
1085 */
1086 mono_domain_assemblies_lock (domain);
1087
1088 if (!domain->setup) {
1089 mono_domain_assemblies_unlock (domain);
1090 return;
1091 }
1092
1093 if ((domain->search_path != NULL) && !domain->setup->path_changed) {
1094 mono_domain_assemblies_unlock (domain);
1095 return;
1096 }
1097 setup = domain->setup;
1098 if (!setup->application_base) {
1099 mono_domain_assemblies_unlock (domain);
1100 return; /* Must set application base to get private path working */
1101 }
1102
1103 npaths++;
1104
1105 if (setup->private_bin_path) {
1106 search_path = mono_string_to_utf8_checked (setup->private_bin_path, &error);
1107 if (!mono_error_ok (&error)) { /*FIXME maybe we should bubble up the error.*/
1108 g_warning ("Could not decode AppDomain search path since it contains invalid caracters");
1109 mono_error_cleanup (&error);
1110 mono_domain_assemblies_unlock (domain);
1111 return;
1112 }
1113 }
1114
1115 if (domain->private_bin_path) {
1116 if (search_path == NULL)
1117 search_path = domain->private_bin_path;
1118 else {
1119 gchar *tmp2 = search_path;
1120 search_path = g_strjoin (";", search_path, domain->private_bin_path, NULL);
1121 g_free (tmp2);
1122 }
1123 }
1124
1125 if (search_path) {
1126 /*
1127 * As per MSDN documentation, AppDomainSetup.PrivateBinPath contains a list of
1128 * directories relative to ApplicationBase separated by semicolons (see
1129 * http://msdn2.microsoft.com/en-us/library/system.appdomainsetup.privatebinpath.aspx)
1130 * The loop below copes with the fact that some Unix applications may use ':' (or
1131 * System.IO.Path.PathSeparator) as the path search separator. We replace it with
1132 * ';' for the subsequent split.
1133 *
1134 * The issue was reported in bug #81446
1135 */
1136
1137 #ifndef TARGET_WIN32
1138 gint slen;
1139
1140 slen = strlen (search_path);
1141 for (i = 0; i < slen; i++)
1142 if (search_path [i] == ':')
1143 search_path [i] = ';';
1144 #endif
1145
1146 pvt_split = g_strsplit (search_path, ";", 1000);
1147 g_free (search_path);
1148 for (tmp = pvt_split; *tmp; tmp++, npaths++);
1149 }
1150
1151 if (!npaths) {
1152 if (pvt_split)
1153 g_strfreev (pvt_split);
1154 /*
1155 * Don't do this because the first time is called, the domain
1156 * setup is not finished.
1157 *
1158 * domain->search_path = g_malloc (sizeof (char *));
1159 * domain->search_path [0] = NULL;
1160 */
1161 mono_domain_assemblies_unlock (domain);
1162 return;
1163 }
1164
1165 if (domain->search_path)
1166 g_strfreev (domain->search_path);
1167
1168 tmp = g_malloc ((npaths + 1) * sizeof (gchar *));
1169 tmp [npaths] = NULL;
1170
1171 *tmp = mono_string_to_utf8_checked (setup->application_base, &error);
1172 if (!mono_error_ok (&error)) {
1173 mono_error_cleanup (&error);
1174 g_strfreev (pvt_split);
1175 g_free (tmp);
1176
1177 mono_domain_assemblies_unlock (domain);
1178 return;
1179 }
1180
1181 domain->search_path = tmp;
1182
1183 /* FIXME: is this needed? */
1184 if (strncmp (*tmp, "file://", 7) == 0) {
1185 gchar *file = *tmp;
1186 gchar *uri = *tmp;
1187 gchar *tmpuri;
1188
1189 if (uri [7] != '/')
1190 uri = g_strdup_printf ("file:///%s", uri + 7);
1191
1192 tmpuri = uri;
1193 uri = mono_escape_uri_string (tmpuri);
1194 *tmp = g_filename_from_uri (uri, NULL, &gerror);
1195 g_free (uri);
1196
1197 if (tmpuri != file)
1198 g_free (tmpuri);
1199
1200 if (gerror != NULL) {
1201 g_warning ("%s\n", gerror->message);
1202 g_error_free (gerror);
1203 *tmp = file;
1204 } else {
1205 g_free (file);
1206 }
1207 }
1208
1209 for (i = 1; pvt_split && i < npaths; i++) {
1210 if (g_path_is_absolute (pvt_split [i - 1])) {
1211 tmp [i] = g_strdup (pvt_split [i - 1]);
1212 } else {
1213 tmp [i] = g_build_filename (tmp [0], pvt_split [i - 1], NULL);
1214 }
1215
1216 if (strchr (tmp [i], '.')) {
1217 gchar *reduced;
1218 gchar *freeme;
1219
1220 reduced = mono_path_canonicalize (tmp [i]);
1221 if (appbaselen == -1)
1222 appbaselen = strlen (tmp [0]);
1223
1224 if (strncmp (tmp [0], reduced, appbaselen)) {
1225 g_free (reduced);
1226 g_free (tmp [i]);
1227 tmp [i] = g_strdup ("");
1228 continue;
1229 }
1230
1231 freeme = tmp [i];
1232 tmp [i] = reduced;
1233 g_free (freeme);
1234 }
1235 }
1236
1237 if (setup->private_bin_path_probe != NULL) {
1238 g_free (tmp [0]);
1239 tmp [0] = g_strdup ("");
1240 }
1241
1242 domain->setup->path_changed = FALSE;
1243
1244 g_strfreev (pvt_split);
1245
1246 mono_domain_assemblies_unlock (domain);
1247 }
1248
1249 #ifdef DISABLE_SHADOW_COPY
1250 gboolean
1251 mono_is_shadow_copy_enabled (MonoDomain *domain, const gchar *dir_name)
1252 {
1253 return FALSE;
1254 }
1255
1256 char *
1257 mono_make_shadow_copy (const char *filename)
1258 {
1259 return (char *) filename;
1260 }
1261 #else
1262 static gboolean
1263 shadow_copy_sibling (gchar *src, gint srclen, const char *extension, gchar *target, gint targetlen, gint tail_len)
1264 {
1265 guint16 *orig, *dest;
1266 gboolean copy_result;
1267
1268 strcpy (src + srclen - tail_len, extension);
1269 if (!g_file_test (src, G_FILE_TEST_IS_REGULAR))
1270 return TRUE;
1271 orig = g_utf8_to_utf16 (src, strlen (src), NULL, NULL, NULL);
1272
1273 strcpy (target + targetlen - tail_len, extension);
1274 dest = g_utf8_to_utf16 (target, strlen (target), NULL, NULL, NULL);
1275
1276 DeleteFile (dest);
1277 copy_result = CopyFile (orig, dest, FALSE);
1278
1279 /* Fix for bug #556884 - make sure the files have the correct mode so that they can be
1280 * overwritten when updated in their original locations. */
1281 if (copy_result)
1282 copy_result = SetFileAttributes (dest, FILE_ATTRIBUTE_NORMAL);
1283
1284 g_free (orig);
1285 g_free (dest);
1286
1287 return copy_result;
1288 }
1289
1290 static gint32
1291 get_cstring_hash (const char *str)
1292 {
1293 int len, i;
1294 const char *p;
1295 gint32 h = 0;
1296
1297 if (!str || !str [0])
1298 return 0;
1299
1300 len = strlen (str);
1301 p = str;
1302 for (i = 0; i < len; i++) {
1303 h = (h << 5) - h + *p;
1304 p++;
1305 }
1306
1307 return h;
1308 }
1309
1310 /*
1311 * Returned memory is malloc'd. Called must free it
1312 */
1313 static char *
1314 get_shadow_assembly_location_base (MonoDomain *domain, MonoError *error)
1315 {
1316 MonoAppDomainSetup *setup;
1317 char *cache_path, *appname;
1318 char *userdir;
1319 char *location;
1320
1321 mono_error_init (error);
1322
1323 setup = domain->setup;
1324 if (setup->cache_path != NULL && setup->application_name != NULL) {
1325 cache_path = mono_string_to_utf8_checked (setup->cache_path, error);
1326 if (!mono_error_ok (error))
1327 return NULL;
1328 #ifndef TARGET_WIN32
1329 {
1330 gint i;
1331 for (i = strlen (cache_path) - 1; i >= 0; i--)
1332 if (cache_path [i] == '\\')
1333 cache_path [i] = '/';
1334 }
1335 #endif
1336
1337 appname = mono_string_to_utf8_checked (setup->application_name, error);
1338 if (!mono_error_ok (error)) {
1339 g_free (cache_path);
1340 return NULL;
1341 }
1342
1343 location = g_build_filename (cache_path, appname, "assembly", "shadow", NULL);
1344 g_free (appname);
1345 g_free (cache_path);
1346 } else {
1347 userdir = g_strdup_printf ("%s-mono-cachepath", g_get_user_name ());
1348 location = g_build_filename (g_get_tmp_dir (), userdir, "assembly", "shadow", NULL);
1349 g_free (userdir);
1350 }
1351 return location;
1352 }
1353
1354 static char *
1355 get_shadow_assembly_location (const char *filename, MonoError *error)
1356 {
1357 gint32 hash = 0, hash2 = 0;
1358 char name_hash [9];
1359 char path_hash [30];
1360 char *bname = g_path_get_basename (filename);
1361 char *dirname = g_path_get_dirname (filename);
1362 char *location, *tmploc;
1363 MonoDomain *domain = mono_domain_get ();
1364
1365 mono_error_init (error);
1366
1367 hash = get_cstring_hash (bname);
1368 hash2 = get_cstring_hash (dirname);
1369 g_snprintf (name_hash, sizeof (name_hash), "%08x", hash);
1370 g_snprintf (path_hash, sizeof (path_hash), "%08x_%08x_%08x", hash ^ hash2, hash2, domain->shadow_serial);
1371 tmploc = get_shadow_assembly_location_base (domain, error);
1372 if (!mono_error_ok (error)) {
1373 g_free (bname);
1374 g_free (dirname);
1375 return NULL;
1376 }
1377
1378 location = g_build_filename (tmploc, name_hash, path_hash, bname, NULL);
1379 g_free (tmploc);
1380 g_free (bname);
1381 g_free (dirname);
1382 return location;
1383 }
1384
1385 static gboolean
1386 ensure_directory_exists (const char *filename)
1387 {
1388 #ifdef HOST_WIN32
1389 gchar *dir_utf8 = g_path_get_dirname (filename);
1390 gunichar2 *p;
1391 gunichar2 *dir_utf16 = NULL;
1392 int retval;
1393
1394 if (!dir_utf8 || !dir_utf8 [0])
1395 return FALSE;
1396
1397 dir_utf16 = g_utf8_to_utf16 (dir_utf8, strlen (dir_utf8), NULL, NULL, NULL);
1398 g_free (dir_utf8);
1399
1400 if (!dir_utf16)
1401 return FALSE;
1402
1403 p = dir_utf16;
1404
1405 /* make life easy and only use one directory seperator */
1406 while (*p != '\0')
1407 {
1408 if (*p == '/')
1409 *p = '\\';
1410 p++;
1411 }
1412
1413 p = dir_utf16;
1414
1415 /* get past C:\ )*/
1416 while (*p++ != '\\')
1417 {
1418 }
1419
1420 while (1) {
1421 BOOL bRet = FALSE;
1422 p = wcschr (p, '\\');
1423 if (p)
1424 *p = '\0';
1425 retval = _wmkdir (dir_utf16);
1426 if (retval != 0 && errno != EEXIST) {
1427 g_free (dir_utf16);
1428 return FALSE;
1429 }
1430 if (!p)
1431 break;
1432 *p++ = '\\';
1433 }
1434
1435 g_free (dir_utf16);
1436 return TRUE;
1437 #else
1438 char *p;
1439 gchar *dir = g_path_get_dirname (filename);
1440 int retval;
1441 struct stat sbuf;
1442
1443 if (!dir || !dir [0]) {
1444 g_free (dir);
1445 return FALSE;
1446 }
1447
1448 if (stat (dir, &sbuf) == 0 && S_ISDIR (sbuf.st_mode)) {
1449 g_free (dir);
1450 return TRUE;
1451 }
1452
1453 p = dir;
1454 while (*p == '/')
1455 p++;
1456
1457 while (1) {
1458 p = strchr (p, '/');
1459 if (p)
1460 *p = '\0';
1461 retval = mkdir (dir, 0777);
1462 if (retval != 0 && errno != EEXIST) {
1463 g_free (dir);
1464 return FALSE;
1465 }
1466 if (!p)
1467 break;
1468 *p++ = '/';
1469 }
1470
1471 g_free (dir);
1472 return TRUE;
1473 #endif
1474 }
1475
1476 static gboolean
1477 private_file_needs_copying (const char *src, struct stat *sbuf_src, char *dest)
1478 {
1479 struct stat sbuf_dest;
1480
1481 if (stat (src, sbuf_src) == -1 || stat (dest, &sbuf_dest) == -1)
1482 return TRUE;
1483
1484 if (sbuf_src->st_size == sbuf_dest.st_size &&
1485 sbuf_src->st_mtime == sbuf_dest.st_mtime)
1486 return FALSE;
1487
1488 return TRUE;
1489 }
1490
1491 static gboolean
1492 shadow_copy_create_ini (const char *shadow, const char *filename)
1493 {
1494 char *dir_name;
1495 char *ini_file;
1496 guint16 *u16_ini;
1497 gboolean result;
1498 guint32 n;
1499 HANDLE *handle;
1500 gchar *full_path;
1501
1502 dir_name = g_path_get_dirname (shadow);
1503 ini_file = g_build_filename (dir_name, "__AssemblyInfo__.ini", NULL);
1504 g_free (dir_name);
1505 if (g_file_test (ini_file, G_FILE_TEST_IS_REGULAR)) {
1506 g_free (ini_file);
1507 return TRUE;
1508 }
1509
1510 u16_ini = g_utf8_to_utf16 (ini_file, strlen (ini_file), NULL, NULL, NULL);
1511 g_free (ini_file);
1512 if (!u16_ini) {
1513 return FALSE;
1514 }
1515 handle = CreateFile (u16_ini, GENERIC_WRITE, FILE_SHARE_READ|FILE_SHARE_WRITE,
1516 NULL, CREATE_NEW, FileAttributes_Normal, NULL);
1517 g_free (u16_ini);
1518 if (handle == INVALID_HANDLE_VALUE) {
1519 return FALSE;
1520 }
1521
1522 full_path = mono_path_resolve_symlinks (filename);
1523 result = WriteFile (handle, full_path, strlen (full_path), &n, NULL);
1524 g_free (full_path);
1525 CloseHandle (handle);
1526 return result;
1527 }
1528
1529 gboolean
1530 mono_is_shadow_copy_enabled (MonoDomain *domain, const gchar *dir_name)
1531 {
1532 MonoError error;
1533 MonoAppDomainSetup *setup;
1534 gchar *all_dirs;
1535 gchar **dir_ptr;
1536 gchar **directories;
1537 gchar *shadow_status_string;
1538 gchar *base_dir;
1539 gboolean shadow_enabled;
1540 gboolean found = FALSE;
1541
1542 if (domain == NULL)
1543 return FALSE;
1544
1545 setup = domain->setup;
1546 if (setup == NULL || setup->shadow_copy_files == NULL)
1547 return FALSE;
1548
1549 shadow_status_string = mono_string_to_utf8_checked (setup->shadow_copy_files, &error);
1550 if (!mono_error_ok (&error)) {
1551 mono_error_cleanup (&error);
1552 return FALSE;
1553 }
1554 shadow_enabled = !g_ascii_strncasecmp (shadow_status_string, "true", 4);
1555 g_free (shadow_status_string);
1556
1557 if (!shadow_enabled)
1558 return FALSE;
1559
1560 if (setup->shadow_copy_directories == NULL)
1561 return TRUE;
1562
1563 /* Is dir_name a shadow_copy destination already? */
1564 base_dir = get_shadow_assembly_location_base (domain, &error);
1565 if (!mono_error_ok (&error)) {
1566 mono_error_cleanup (&error);
1567 return FALSE;
1568 }
1569
1570 if (strstr (dir_name, base_dir)) {
1571 g_free (base_dir);
1572 return TRUE;
1573 }
1574 g_free (base_dir);
1575
1576 all_dirs = mono_string_to_utf8_checked (setup->shadow_copy_directories, &error);
1577 if (!mono_error_ok (&error)) {
1578 mono_error_cleanup (&error);
1579 return FALSE;
1580 }
1581
1582 directories = g_strsplit (all_dirs, G_SEARCHPATH_SEPARATOR_S, 1000);
1583 dir_ptr = directories;
1584 while (*dir_ptr) {
1585 if (**dir_ptr != '\0' && !strcmp (*dir_ptr, dir_name)) {
1586 found = TRUE;
1587 break;
1588 }
1589 dir_ptr++;
1590 }
1591 g_strfreev (directories);
1592 g_free (all_dirs);
1593 return found;
1594 }
1595
1596 /*
1597 This function raises exceptions so it can cause as sorts of nasty stuff if called
1598 while holding a lock.
1599 FIXME bubble up the error instead of raising it here
1600 */
1601 char *
1602 mono_make_shadow_copy (const char *filename)
1603 {
1604 MonoError error;
1605 gchar *sibling_source, *sibling_target;
1606 gint sibling_source_len, sibling_target_len;
1607 guint16 *orig, *dest;
1608 char *shadow;
1609 gboolean copy_result;
1610 MonoException *exc;
1611 struct stat src_sbuf;
1612 struct utimbuf utbuf;
1613 char *dir_name = g_path_get_dirname (filename);
1614 MonoDomain *domain = mono_domain_get ();
1615 char *shadow_dir;
1616
1617 set_domain_search_path (domain);
1618
1619 if (!mono_is_shadow_copy_enabled (domain, dir_name)) {
1620 g_free (dir_name);
1621 return (char *) filename;
1622 }
1623
1624 /* Is dir_name a shadow_copy destination already? */
1625 shadow_dir = get_shadow_assembly_location_base (domain, &error);
1626 if (!mono_error_ok (&error)) {
1627 mono_error_cleanup (&error);
1628 g_free (dir_name);
1629 exc = mono_get_exception_execution_engine ("Failed to create shadow copy (invalid characters in shadow directory name).");
1630 mono_raise_exception (exc);
1631 }
1632
1633 if (strstr (dir_name, shadow_dir)) {
1634 g_free (shadow_dir);
1635 g_free (dir_name);
1636 return (char *) filename;
1637 }
1638 g_free (shadow_dir);
1639 g_free (dir_name);
1640
1641 shadow = get_shadow_assembly_location (filename, &error);
1642 if (!mono_error_ok (&error)) {
1643 mono_error_cleanup (&error);
1644 exc = mono_get_exception_execution_engine ("Failed to create shadow copy (invalid characters in file name).");
1645 mono_raise_exception (exc);
1646 }
1647
1648 if (ensure_directory_exists (shadow) == FALSE) {
1649 g_free (shadow);
1650 exc = mono_get_exception_execution_engine ("Failed to create shadow copy (ensure directory exists).");
1651 mono_raise_exception (exc);
1652 }
1653
1654 if (!private_file_needs_copying (filename, &src_sbuf, shadow))
1655 return (char*) shadow;
1656
1657 orig = g_utf8_to_utf16 (filename, strlen (filename), NULL, NULL, NULL);
1658 dest = g_utf8_to_utf16 (shadow, strlen (shadow), NULL, NULL, NULL);
1659 DeleteFile (dest);
1660 copy_result = CopyFile (orig, dest, FALSE);
1661
1662 /* Fix for bug #556884 - make sure the files have the correct mode so that they can be
1663 * overwritten when updated in their original locations. */
1664 if (copy_result)
1665 copy_result = SetFileAttributes (dest, FILE_ATTRIBUTE_NORMAL);
1666
1667 g_free (dest);
1668 g_free (orig);
1669
1670 if (copy_result == FALSE) {
1671 g_free (shadow);
1672 exc = mono_get_exception_execution_engine ("Failed to create shadow copy (CopyFile).");
1673 mono_raise_exception (exc);
1674 }
1675
1676 /* attempt to copy .mdb, .config if they exist */
1677 sibling_source = g_strconcat (filename, ".config", NULL);
1678 sibling_source_len = strlen (sibling_source);
1679 sibling_target = g_strconcat (shadow, ".config", NULL);
1680 sibling_target_len = strlen (sibling_target);
1681
1682 copy_result = shadow_copy_sibling (sibling_source, sibling_source_len, ".mdb", sibling_target, sibling_target_len, 7);
1683 if (copy_result == TRUE)
1684 copy_result = shadow_copy_sibling (sibling_source, sibling_source_len, ".config", sibling_target, sibling_target_len, 7);
1685
1686 g_free (sibling_source);
1687 g_free (sibling_target);
1688
1689 if (copy_result == FALSE) {
1690 g_free (shadow);
1691 exc = mono_get_exception_execution_engine ("Failed to create shadow copy of sibling data (CopyFile).");
1692 mono_raise_exception (exc);
1693 }
1694
1695 /* Create a .ini file containing the original assembly location */
1696 if (!shadow_copy_create_ini (shadow, filename)) {
1697 g_free (shadow);
1698 exc = mono_get_exception_execution_engine ("Failed to create shadow copy .ini file.");
1699 mono_raise_exception (exc);
1700 }
1701
1702 utbuf.actime = src_sbuf.st_atime;
1703 utbuf.modtime = src_sbuf.st_mtime;
1704 utime (shadow, &utbuf);
1705
1706 return shadow;
1707 }
1708 #endif /* DISABLE_SHADOW_COPY */
1709
1710 MonoDomain *
1711 mono_domain_from_appdomain (MonoAppDomain *appdomain)
1712 {
1713 if (appdomain == NULL)
1714 return NULL;
1715
1716 return appdomain->data;
1717 }
1718
1719 static gboolean
1720 try_load_from (MonoAssembly **assembly, const gchar *path1, const gchar *path2,
1721 const gchar *path3, const gchar *path4,
1722 gboolean refonly, gboolean is_private)
1723 {
1724 gchar *fullpath;
1725 gboolean found = FALSE;
1726
1727 *assembly = NULL;
1728 fullpath = g_build_filename (path1, path2, path3, path4, NULL);
1729
1730 if (IS_PORTABILITY_SET) {
1731 gchar *new_fullpath = mono_portability_find_file (fullpath, TRUE);
1732 if (new_fullpath) {
1733 g_free (fullpath);
1734 fullpath = new_fullpath;
1735 found = TRUE;
1736 }
1737 } else
1738 found = g_file_test (fullpath, G_FILE_TEST_IS_REGULAR);
1739
1740 if (found)
1741 *assembly = mono_assembly_open_full (fullpath, NULL, refonly);
1742
1743 g_free (fullpath);
1744 return (*assembly != NULL);
1745 }
1746
1747 static MonoAssembly *
1748 real_load (gchar **search_path, const gchar *culture, const gchar *name, gboolean refonly)
1749 {
1750 MonoAssembly *result = NULL;
1751 gchar **path;
1752 gchar *filename;
1753 const gchar *local_culture;
1754 gint len;
1755 gboolean is_private = FALSE;
1756
1757 if (!culture || *culture == '\0') {
1758 local_culture = "";
1759 } else {
1760 local_culture = culture;
1761 }
1762
1763 filename = g_strconcat (name, ".dll", NULL);
1764 len = strlen (filename);
1765
1766 for (path = search_path; *path; path++) {
1767 if (**path == '\0') {
1768 is_private = TRUE;
1769 continue; /* Ignore empty ApplicationBase */
1770 }
1771
1772 /* See test cases in bug #58992 and bug #57710 */
1773 /* 1st try: [culture]/[name].dll (culture may be empty) */
1774 strcpy (filename + len - 4, ".dll");
1775 if (try_load_from (&result, *path, local_culture, "", filename, refonly, is_private))
1776 break;
1777
1778 /* 2nd try: [culture]/[name].exe (culture may be empty) */
1779 strcpy (filename + len - 4, ".exe");
1780 if (try_load_from (&result, *path, local_culture, "", filename, refonly, is_private))
1781 break;
1782
1783 /* 3rd try: [culture]/[name]/[name].dll (culture may be empty) */
1784 strcpy (filename + len - 4, ".dll");
1785 if (try_load_from (&result, *path, local_culture, name, filename, refonly, is_private))
1786 break;
1787
1788 /* 4th try: [culture]/[name]/[name].exe (culture may be empty) */
1789 strcpy (filename + len - 4, ".exe");
1790 if (try_load_from (&result, *path, local_culture, name, filename, refonly, is_private))
1791 break;
1792 }
1793
1794 g_free (filename);
1795 return result;
1796 }
1797
1798 /*
1799 * Try loading the assembly from ApplicationBase and PrivateBinPath
1800 * and then from assemblies_path if any.
1801 * LOCKING: This is called from the assembly loading code, which means the caller
1802 * might hold the loader lock. Thus, this function must not acquire the domain lock.
1803 */
1804 static MonoAssembly *
1805 mono_domain_assembly_preload (MonoAssemblyName *aname,
1806 gchar **assemblies_path,
1807 gpointer user_data)
1808 {
1809 MonoDomain *domain = mono_domain_get ();
1810 MonoAssembly *result = NULL;
1811 gboolean refonly = GPOINTER_TO_UINT (user_data);
1812
1813 set_domain_search_path (domain);
1814
1815 if (domain->search_path && domain->search_path [0] != NULL) {
1816 result = real_load (domain->search_path, aname->culture, aname->name, refonly);
1817 }
1818
1819 if (result == NULL && assemblies_path && assemblies_path [0] != NULL) {
1820 result = real_load (assemblies_path, aname->culture, aname->name, refonly);
1821 }
1822
1823 return result;
1824 }
1825
1826 /*
1827 * Check whenever a given assembly was already loaded in the current appdomain.
1828 */
1829 static MonoAssembly *
1830 mono_domain_assembly_search (MonoAssemblyName *aname,
1831 gpointer user_data)
1832 {
1833 MonoDomain *domain = mono_domain_get ();
1834 GSList *tmp;
1835 MonoAssembly *ass;
1836 gboolean refonly = GPOINTER_TO_UINT (user_data);
1837
1838 mono_domain_assemblies_lock (domain);
1839 for (tmp = domain->domain_assemblies; tmp; tmp = tmp->next) {
1840 ass = tmp->data;
1841 /* Dynamic assemblies can't match here in MS.NET */
1842 if (ass->dynamic || refonly != ass->ref_only || !mono_assembly_names_equal (aname, &ass->aname))
1843 continue;
1844
1845 mono_domain_assemblies_unlock (domain);
1846 return ass;
1847 }
1848 mono_domain_assemblies_unlock (domain);
1849
1850 return NULL;
1851 }
1852
1853 MonoReflectionAssembly *
1854 ves_icall_System_Reflection_Assembly_LoadFrom (MonoString *fname, MonoBoolean refOnly)
1855 {
1856 MonoDomain *domain = mono_domain_get ();
1857 char *name, *filename;
1858 MonoImageOpenStatus status = MONO_IMAGE_OK;
1859 MonoAssembly *ass;
1860
1861 MONO_ARCH_SAVE_REGS;
1862
1863 if (fname == NULL) {
1864 MonoException *exc = mono_get_exception_argument_null ("assemblyFile");
1865 mono_raise_exception (exc);
1866 }
1867
1868 name = filename = mono_string_to_utf8 (fname);
1869
1870 ass = mono_assembly_open_full (filename, &status, refOnly);
1871
1872 if (!ass){
1873 MonoException *exc;
1874
1875 if (status == MONO_IMAGE_IMAGE_INVALID)
1876 exc = mono_get_exception_bad_image_format2 (NULL, fname);
1877 else
1878 exc = mono_get_exception_file_not_found2 (NULL, fname);
1879 g_free (name);
1880 mono_raise_exception (exc);
1881 }
1882
1883 g_free (name);
1884
1885 return mono_assembly_get_object (domain, ass);
1886 }
1887
1888 MonoReflectionAssembly *
1889 ves_icall_System_AppDomain_LoadAssemblyRaw (MonoAppDomain *ad,
1890 MonoArray *raw_assembly,
1891 MonoArray *raw_symbol_store, MonoObject *evidence,
1892 MonoBoolean refonly)
1893 {
1894 MonoAssembly *ass;
1895 MonoReflectionAssembly *refass = NULL;
1896 MonoDomain *domain = ad->data;
1897 MonoImageOpenStatus status;
1898 guint32 raw_assembly_len = mono_array_length (raw_assembly);
1899 MonoImage *image = mono_image_open_from_data_full (mono_array_addr (raw_assembly, gchar, 0), raw_assembly_len, TRUE, NULL, refonly);
1900
1901 if (!image) {
1902 mono_raise_exception (mono_get_exception_bad_image_format (""));
1903 return NULL;
1904 }
1905
1906 if (raw_symbol_store != NULL)
1907 mono_debug_open_image_from_memory (image, mono_array_addr (raw_symbol_store, guint8, 0), mono_array_length (raw_symbol_store));
1908
1909 ass = mono_assembly_load_from_full (image, "", &status, refonly);
1910
1911
1912 if (!ass) {
1913 mono_image_close (image);
1914 mono_raise_exception (mono_get_exception_bad_image_format (""));
1915 return NULL;
1916 }
1917
1918 refass = mono_assembly_get_object (domain, ass);
1919 MONO_OBJECT_SETREF (refass, evidence, evidence);
1920 return refass;
1921 }
1922
1923 MonoReflectionAssembly *
1924 ves_icall_System_AppDomain_LoadAssembly (MonoAppDomain *ad, MonoString *assRef, MonoObject *evidence, MonoBoolean refOnly)
1925 {
1926 MonoDomain *domain = ad->data;
1927 MonoImageOpenStatus status = MONO_IMAGE_OK;
1928 MonoAssembly *ass;
1929 MonoAssemblyName aname;
1930 MonoReflectionAssembly *refass = NULL;
1931 gchar *name;
1932 gboolean parsed;
1933
1934 MONO_ARCH_SAVE_REGS;
1935
1936 g_assert (assRef != NULL);
1937
1938 name = mono_string_to_utf8 (assRef);
1939 parsed = mono_assembly_name_parse (name, &aname);
1940 g_free (name);
1941
1942 if (!parsed) {
1943 /* This is a parse error... */
1944 return NULL;
1945 }
1946
1947 ass = mono_assembly_load_full_nosearch (&aname, NULL, &status, refOnly);
1948 mono_assembly_name_free (&aname);
1949
1950 if (!ass) {
1951 /* MS.NET doesn't seem to call the assembly resolve handler for refonly assemblies */
1952 if (!refOnly)
1953 refass = mono_try_assembly_resolve (domain, assRef, refOnly);
1954 else
1955 refass = NULL;
1956 if (!refass) {
1957 return NULL;
1958 }
1959 }
1960
1961 if (refass == NULL)
1962 refass = mono_assembly_get_object (domain, ass);
1963
1964 MONO_OBJECT_SETREF (refass, evidence, evidence);
1965 return refass;
1966 }
1967
1968 void
1969 ves_icall_System_AppDomain_InternalUnload (gint32 domain_id)
1970 {
1971 MonoDomain * domain = mono_domain_get_by_id (domain_id);
1972
1973 MONO_ARCH_SAVE_REGS;
1974
1975 if (NULL == domain) {
1976 MonoException *exc = mono_get_exception_execution_engine ("Failed to unload domain, domain id not found");
1977 mono_raise_exception (exc);
1978 }
1979
1980 if (domain == mono_get_root_domain ()) {
1981 mono_raise_exception (mono_get_exception_cannot_unload_appdomain ("The default appdomain can not be unloaded."));
1982 return;
1983 }
1984
1985 /*
1986 * Unloading seems to cause problems when running NUnit/NAnt, hence
1987 * this workaround.
1988 */
1989 if (g_getenv ("MONO_NO_UNLOAD"))
1990 return;
1991
1992 mono_domain_unload (domain);
1993 }
1994
1995 gboolean
1996 ves_icall_System_AppDomain_InternalIsFinalizingForUnload (gint32 domain_id)
1997 {
1998 MonoDomain *domain = mono_domain_get_by_id (domain_id);
1999
2000 if (!domain)
2001 return TRUE;
2002
2003 return mono_domain_is_unloading (domain);
2004 }
2005
2006 gint32
2007 ves_icall_System_AppDomain_ExecuteAssembly (MonoAppDomain *ad,
2008 MonoReflectionAssembly *refass, MonoArray *args)
2009 {
2010 MonoImage *image;
2011 MonoMethod *method;
2012
2013 MONO_ARCH_SAVE_REGS;
2014
2015 g_assert (refass);
2016 image = refass->assembly->image;
2017 g_assert (image);
2018
2019 method = mono_get_method (image, mono_image_get_entry_point (image), NULL);
2020
2021 if (!method)
2022 g_error ("No entry point method found in %s", image->name);
2023
2024 if (!args)
2025 args = (MonoArray *) mono_array_new (ad->data, mono_defaults.string_class, 0);
2026
2027 return mono_runtime_exec_main (method, (MonoArray *)args, NULL);
2028 }
2029
2030 gint32
2031 ves_icall_System_AppDomain_GetIDFromDomain (MonoAppDomain * ad)
2032 {
2033 MONO_ARCH_SAVE_REGS;
2034
2035 return ad->data->domain_id;
2036 }
2037
2038 MonoAppDomain *
2039 ves_icall_System_AppDomain_InternalSetDomain (MonoAppDomain *ad)
2040 {
2041 MonoDomain *old_domain = mono_domain_get();
2042
2043 MONO_ARCH_SAVE_REGS;
2044
2045 if (!mono_domain_set (ad->data, FALSE))
2046 mono_raise_exception (mono_get_exception_appdomain_unloaded ());
2047
2048 return old_domain->domain;
2049 }
2050
2051 MonoAppDomain *
2052 ves_icall_System_AppDomain_InternalSetDomainByID (gint32 domainid)
2053 {
2054 MonoDomain *current_domain = mono_domain_get ();
2055 MonoDomain *domain = mono_domain_get_by_id (domainid);
2056
2057 MONO_ARCH_SAVE_REGS;
2058
2059 if (!domain || !mono_domain_set (domain, FALSE))
2060 mono_raise_exception (mono_get_exception_appdomain_unloaded ());
2061
2062 return current_domain->domain;
2063 }
2064
2065 void
2066 ves_icall_System_AppDomain_InternalPushDomainRef (MonoAppDomain *ad)
2067 {
2068 MONO_ARCH_SAVE_REGS;
2069
2070 mono_thread_push_appdomain_ref (ad->data);
2071 }
2072
2073 void
2074 ves_icall_System_AppDomain_InternalPushDomainRefByID (gint32 domain_id)
2075 {
2076 MonoDomain *domain = mono_domain_get_by_id (domain_id);
2077
2078 MONO_ARCH_SAVE_REGS;
2079
2080 if (!domain)
2081 /*
2082 * Raise an exception to prevent the managed code from executing a pop
2083 * later.
2084 */
2085 mono_raise_exception (mono_get_exception_appdomain_unloaded ());
2086
2087 mono_thread_push_appdomain_ref (domain);
2088 }
2089
2090 void
2091 ves_icall_System_AppDomain_InternalPopDomainRef (void)
2092 {
2093 MONO_ARCH_SAVE_REGS;
2094
2095 mono_thread_pop_appdomain_ref ();
2096 }
2097
2098 MonoAppContext *
2099 ves_icall_System_AppDomain_InternalGetContext ()
2100 {
2101 MONO_ARCH_SAVE_REGS;
2102
2103 return mono_context_get ();
2104 }
2105
2106 MonoAppContext *
2107 ves_icall_System_AppDomain_InternalGetDefaultContext ()
2108 {
2109 MONO_ARCH_SAVE_REGS;
2110
2111 return mono_domain_get ()->default_context;
2112 }
2113
2114 MonoAppContext *
2115 ves_icall_System_AppDomain_InternalSetContext (MonoAppContext *mc)
2116 {
2117 MonoAppContext *old_context = mono_context_get ();
2118
2119 MONO_ARCH_SAVE_REGS;
2120
2121 mono_context_set (mc);
2122
2123 return old_context;
2124 }
2125
2126 MonoString *
2127 ves_icall_System_AppDomain_InternalGetProcessGuid (MonoString* newguid)
2128 {
2129 MonoDomain* mono_root_domain = mono_get_root_domain ();
2130 mono_domain_lock (mono_root_domain);
2131 if (process_guid_set) {
2132 mono_domain_unlock (mono_root_domain);
2133 return mono_string_new_utf16 (mono_domain_get (), process_guid, sizeof(process_guid)/2);
2134 }
2135 memcpy (process_guid, mono_string_chars(newguid), sizeof(process_guid));
2136 process_guid_set = TRUE;
2137 mono_domain_unlock (mono_root_domain);
2138 return newguid;
2139 }
2140
2141 gboolean
2142 mono_domain_is_unloading (MonoDomain *domain)
2143 {
2144 if (domain->state == MONO_APPDOMAIN_UNLOADING || domain->state == MONO_APPDOMAIN_UNLOADED)
2145 return TRUE;
2146 else
2147 return FALSE;
2148 }
2149
2150 static void
2151 clear_cached_vtable (MonoVTable *vtable)
2152 {
2153 MonoClass *klass = vtable->klass;
2154 MonoDomain *domain = vtable->domain;
2155 MonoClassRuntimeInfo *runtime_info;
2156
2157 runtime_info = klass->runtime_info;
2158 if (runtime_info && runtime_info->max_domain >= domain->domain_id)
2159 runtime_info->domain_vtables [domain->domain_id] = NULL;
2160 if (vtable->data && klass->has_static_refs)
2161 mono_gc_free_fixed (vtable->data);
2162 }
2163
2164 static G_GNUC_UNUSED void
2165 zero_static_data (MonoVTable *vtable)
2166 {
2167 MonoClass *klass = vtable->klass;
2168
2169 if (vtable->data && klass->has_static_refs)
2170 memset (vtable->data, 0, mono_class_data_size (klass));
2171 }
2172
2173 typedef struct unload_data {
2174 MonoDomain *domain;
2175 char *failure_reason;
2176 } unload_data;
2177
2178 #ifdef HAVE_SGEN_GC
2179 static void
2180 deregister_reflection_info_roots_nspace_table (gpointer key, gpointer value, gpointer image)
2181 {
2182 guint32 index = GPOINTER_TO_UINT (value);
2183 MonoClass *class = mono_class_get (image, MONO_TOKEN_TYPE_DEF | index);
2184
2185 g_assert (class);
2186
2187 mono_class_free_ref_info (class);
2188 }
2189
2190 static void
2191 deregister_reflection_info_roots_name_space (gpointer key, gpointer value, gpointer user_data)
2192 {
2193 g_hash_table_foreach (value, deregister_reflection_info_roots_nspace_table, user_data);
2194 }
2195
2196 static void
2197 deregister_reflection_info_roots_from_list (MonoImage *image)
2198 {
2199 GSList *list = image->reflection_info_unregister_classes;
2200
2201 while (list) {
2202 MonoClass *class = list->data;
2203
2204 mono_class_free_ref_info (class);
2205
2206 list = list->next;
2207 }
2208
2209 g_slist_free (image->reflection_info_unregister_classes);
2210 image->reflection_info_unregister_classes = NULL;
2211 }
2212
2213 static void
2214 deregister_reflection_info_roots (MonoDomain *domain)
2215 {
2216 GSList *list;
2217
2218 mono_loader_lock ();
2219 mono_domain_assemblies_lock (domain);
2220 for (list = domain->domain_assemblies; list; list = list->next) {
2221 MonoAssembly *assembly = list->data;
2222 MonoImage *image = assembly->image;
2223 int i;
2224 /*No need to take the image lock here since dynamic images are appdomain bound and at this point the mutator is gone.*/
2225 if (image->dynamic && image->name_cache)
2226 g_hash_table_foreach (image->name_cache, deregister_reflection_info_roots_name_space, image);
2227 deregister_reflection_info_roots_from_list (image);
2228 for (i = 0; i < image->module_count; ++i) {
2229 MonoImage *module = image->modules [i];
2230 if (module) {
2231 if (module->dynamic && module->name_cache) {
2232 g_hash_table_foreach (module->name_cache,
2233 deregister_reflection_info_roots_name_space, module);
2234 }
2235 deregister_reflection_info_roots_from_list (module);
2236 }
2237 }
2238 }
2239 mono_domain_assemblies_unlock (domain);
2240 mono_loader_unlock ();
2241 }
2242 #endif
2243
2244 static guint32 WINAPI
2245 unload_thread_main (void *arg)
2246 {
2247 unload_data *data = (unload_data*)arg;
2248 MonoDomain *domain = data->domain;
2249 MonoThread *thread;
2250 int i;
2251
2252 /* Have to attach to the runtime so shutdown can wait for this thread */
2253 thread = mono_thread_attach (mono_get_root_domain ());
2254
2255 /*
2256 * FIXME: Abort our parent thread last, so we can return a failure
2257 * indication if aborting times out.
2258 */
2259 if (!mono_threads_abort_appdomain_threads (domain, -1)) {
2260 data->failure_reason = g_strdup_printf ("Aborting of threads in domain %s timed out.", domain->friendly_name);
2261 return 1;
2262 }
2263
2264 if (!mono_thread_pool_remove_domain_jobs (domain, -1)) {
2265 data->failure_reason = g_strdup_printf ("Cleanup of threadpool jobs of domain %s timed out.", domain->friendly_name);
2266 return 1;
2267 }
2268
2269 /* Finalize all finalizable objects in the doomed appdomain */
2270 if (!mono_domain_finalize (domain, -1)) {
2271 data->failure_reason = g_strdup_printf ("Finalization of domain %s timed out.", domain->friendly_name);
2272 return 1;
2273 }
2274
2275 /* Clear references to our vtables in class->runtime_info.
2276 * We also hold the loader lock because we're going to change
2277 * class->runtime_info.
2278 */
2279
2280 mono_loader_lock ();
2281 mono_domain_lock (domain);
2282 #ifdef HAVE_SGEN_GC
2283 /*
2284 * We need to make sure that we don't have any remsets
2285 * pointing into static data of the to-be-freed domain because
2286 * at the next collections they would be invalid. So what we
2287 * do is we first zero all static data and then do a minor
2288 * collection. Because all references in the static data will
2289 * now be null we won't do any unnecessary copies and after
2290 * the collection there won't be any more remsets.
2291 */
2292 for (i = 0; i < domain->class_vtable_array->len; ++i)
2293 zero_static_data (g_ptr_array_index (domain->class_vtable_array, i));
2294 mono_gc_collect (0);
2295 #endif
2296 for (i = 0; i < domain->class_vtable_array->len; ++i)
2297 clear_cached_vtable (g_ptr_array_index (domain->class_vtable_array, i));
2298 #ifdef HAVE_SGEN_GC
2299 deregister_reflection_info_roots (domain);
2300 #endif
2301 mono_domain_unlock (domain);
2302 mono_loader_unlock ();
2303
2304 mono_threads_clear_cached_culture (domain);
2305
2306 domain->state = MONO_APPDOMAIN_UNLOADED;
2307
2308 /* printf ("UNLOADED %s.\n", domain->friendly_name); */
2309
2310 /* remove from the handle table the items related to this domain */
2311 mono_gchandle_free_domain (domain);
2312
2313 mono_domain_free (domain, FALSE);
2314
2315 mono_gc_collect (mono_gc_max_generation ());
2316
2317 mono_thread_detach (thread);
2318
2319 return 0;
2320 }
2321
2322 /*
2323 * mono_domain_unload:
2324 * @domain: The domain to unload
2325 *
2326 * Unloads an appdomain. Follows the process outlined in the comment
2327 * for mono_domain_try_unload.
2328 */
2329 void
2330 mono_domain_unload (MonoDomain *domain)
2331 {
2332 MonoObject *exc = NULL;
2333 mono_domain_try_unload (domain, &exc);
2334 if (exc)
2335 mono_raise_exception ((MonoException*)exc);
2336 }
2337
2338 /*
2339 * mono_domain_unload:
2340 * @domain: The domain to unload
2341 * @exc: Exception information
2342 *
2343 * Unloads an appdomain. Follows the process outlined in:
2344 * http://blogs.gotdotnet.com/cbrumme
2345 *
2346 * If doing things the 'right' way is too hard or complex, we do it the
2347 * 'simple' way, which means do everything needed to avoid crashes and
2348 * memory leaks, but not much else.
2349 *
2350 * It is required to pass a valid reference to the exc argument, upon return
2351 * from this function *exc will be set to the exception thrown, if any.
2352 *
2353 * If this method is not called from an icall (embedded scenario for instance),
2354 * it must not be called with any managed frames on the stack, since the unload
2355 * process could end up trying to abort the current thread.
2356 */
2357 void
2358 mono_domain_try_unload (MonoDomain *domain, MonoObject **exc)
2359 {
2360 HANDLE thread_handle;
2361 gsize tid;
2362 guint32 res;
2363 MonoAppDomainState prev_state;
2364 MonoMethod *method;
2365 unload_data thread_data;
2366 MonoDomain *caller_domain = mono_domain_get ();
2367
2368 /* printf ("UNLOAD STARTING FOR %s (%p) IN THREAD 0x%x.\n", domain->friendly_name, domain, GetCurrentThreadId ()); */
2369
2370 /* Atomically change our state to UNLOADING */
2371 prev_state = InterlockedCompareExchange ((gint32*)&domain->state,
2372 MONO_APPDOMAIN_UNLOADING_START,
2373 MONO_APPDOMAIN_CREATED);
2374 if (prev_state != MONO_APPDOMAIN_CREATED) {
2375 switch (prev_state) {
2376 case MONO_APPDOMAIN_UNLOADING_START:
2377 case MONO_APPDOMAIN_UNLOADING:
2378 *exc = (MonoObject *) mono_get_exception_cannot_unload_appdomain ("Appdomain is already being unloaded.");
2379 return;
2380 case MONO_APPDOMAIN_UNLOADED:
2381 *exc = (MonoObject *) mono_get_exception_cannot_unload_appdomain ("Appdomain is already unloaded.");
2382 return;
2383 default:
2384 g_warning ("Invalid appdomain state %d", prev_state);
2385 g_assert_not_reached ();
2386 }
2387 }
2388
2389 mono_debugger_event_unload_appdomain (domain);
2390
2391 mono_domain_set (domain, FALSE);
2392 /* Notify OnDomainUnload listeners */
2393 method = mono_class_get_method_from_name (domain->domain->mbr.obj.vtable->klass, "DoDomainUnload", -1);
2394 g_assert (method);
2395
2396 mono_runtime_invoke (method, domain->domain, NULL, exc);
2397 if (*exc) {
2398 /* Roll back the state change */
2399 domain->state = MONO_APPDOMAIN_CREATED;
2400 mono_domain_set (caller_domain, FALSE);
2401 return;
2402 }
2403 mono_domain_set (caller_domain, FALSE);
2404
2405 thread_data.domain = domain;
2406 thread_data.failure_reason = NULL;
2407
2408 /*The managed callback finished successfully, now we start tearing down the appdomain*/
2409 domain->state = MONO_APPDOMAIN_UNLOADING;
2410 /*
2411 * First we create a separate thread for unloading, since
2412 * we might have to abort some threads, including the current one.
2413 */
2414 /*
2415 * If we create a non-suspended thread, the runtime will hang.
2416 * See:
2417 * http://bugzilla.ximian.com/show_bug.cgi?id=27663
2418 */
2419 #if 0
2420 thread_handle = mono_create_thread (NULL, 0, unload_thread_main, &thread_data, 0, &tid);
2421 #else
2422 thread_handle = mono_create_thread (NULL, 0, (LPTHREAD_START_ROUTINE)unload_thread_main, &thread_data, CREATE_SUSPENDED, &tid);
2423 if (thread_handle == NULL) {
2424 return;
2425 }
2426 ResumeThread (thread_handle);
2427 #endif
2428
2429 /* Wait for the thread */
2430 while ((res = WaitForSingleObjectEx (thread_handle, INFINITE, TRUE) == WAIT_IO_COMPLETION)) {
2431 if (mono_thread_internal_has_appdomain_ref (mono_thread_internal_current (), domain) && (mono_thread_interruption_requested ())) {
2432 /* The unload thread tries to abort us */
2433 /* The icall wrapper will execute the abort */
2434 CloseHandle (thread_handle);
2435 return;
2436 }
2437 }
2438 CloseHandle (thread_handle);
2439
2440 if (thread_data.failure_reason) {
2441 /* Roll back the state change */
2442 domain->state = MONO_APPDOMAIN_CREATED;
2443
2444 g_warning ("%s", thread_data.failure_reason);
2445
2446 *exc = (MonoObject *) mono_get_exception_cannot_unload_appdomain (thread_data.failure_reason);
2447
2448 g_free (thread_data.failure_reason);
2449 thread_data.failure_reason = NULL;
2450 }
2451 }
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