2009-03-02 Zoltan Varga <vargaz@gmail.com>
[mono.git] / mono / metadata / image.c
index c1770d9ff667c1b01238f38c699324e826e35830..39766cb0237a0e16c3c5ccca349f1dd6f33911a4 100644 (file)
@@ -6,7 +6,8 @@
  *   Miguel de Icaza (miguel@ximian.com)
  *   Paolo Molaro (lupus@ximian.com)
  *
- * (C) 2001-2003 Ximian, Inc.  http://www.ximian.com
+ * Copyright 2001-2003 Ximian, Inc (http://www.ximian.com)
+ * Copyright 2004-2009 Novell, Inc (http://www.novell.com)
  *
  */
 #include <config.h>
@@ -607,42 +608,14 @@ mono_image_init (MonoImage *image)
                                       class_next_value);
        image->field_cache = g_hash_table_new (NULL, NULL);
 
-       image->delegate_begin_invoke_cache = 
-               g_hash_table_new ((GHashFunc)mono_signature_hash, 
-                                 (GCompareFunc)mono_metadata_signature_equal);
-       image->delegate_end_invoke_cache = 
-               g_hash_table_new ((GHashFunc)mono_signature_hash, 
-                                 (GCompareFunc)mono_metadata_signature_equal);
-       image->delegate_invoke_cache = 
-               g_hash_table_new ((GHashFunc)mono_signature_hash, 
-                                 (GCompareFunc)mono_metadata_signature_equal);
-       image->runtime_invoke_cache  = 
-               g_hash_table_new ((GHashFunc)mono_signature_hash, 
-                                 (GCompareFunc)mono_metadata_signature_equal);
-       
-       image->runtime_invoke_direct_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
-       image->managed_wrapper_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
-       image->native_wrapper_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
-       image->remoting_invoke_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
-       image->cominterop_invoke_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
-       image->cominterop_wrapper_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
-       image->synchronized_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
-       image->unbox_wrapper_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
-
-       image->ldfld_wrapper_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
-       image->ldflda_wrapper_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
-       image->stfld_wrapper_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
-       image->isinst_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
-       image->castclass_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
-       image->proxy_isinst_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
-       image->thunk_invoke_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
-
        image->typespec_cache = g_hash_table_new (NULL, NULL);
        image->memberref_signatures = g_hash_table_new (NULL, NULL);
        image->helper_signatures = g_hash_table_new (g_str_hash, g_str_equal);
        image->method_signatures = g_hash_table_new (NULL, NULL);
 
        image->property_hash = mono_property_hash_new ();
+       InitializeCriticalSection (&image->lock);
+       InitializeCriticalSection (&image->szarray_cache_lock);
 }
 
 #if G_BYTE_ORDER != G_LITTLE_ENDIAN
@@ -904,14 +877,13 @@ do_mono_image_open (const char *fname, MonoImageOpenStatus *status,
 {
        MonoCLIImageInfo *iinfo;
        MonoImage *image;
-       FILE *filed;
-       struct stat stat_buf;
+       MonoFileMap *filed;
 
-       if ((filed = fopen (fname, "rb")) == NULL){
+       if ((filed = mono_file_map_open (fname)) == NULL){
                if (IS_PORTABILITY_SET) {
                        gchar *ffname = mono_portability_find_file (fname, TRUE);
                        if (ffname) {
-                               filed = fopen (ffname, "rb");
+                               filed = mono_file_map_open (ffname);
                                g_free (ffname);
                        }
                }
@@ -923,24 +895,24 @@ do_mono_image_open (const char *fname, MonoImageOpenStatus *status,
                }
        }
 
-       if (fstat (fileno (filed), &stat_buf)) {
-               fclose (filed);
+       image = g_new0 (MonoImage, 1);
+       image->raw_buffer_used = TRUE;
+       image->raw_data_len = mono_file_map_size (filed);
+       image->raw_data = mono_file_map (image->raw_data_len, MONO_MMAP_READ|MONO_MMAP_PRIVATE, mono_file_map_fd (filed), 0, &image->raw_data_handle);
+       if (!image->raw_data) {
+               mono_file_map_close (filed);
+               g_free (image);
                if (status)
-                       *status = MONO_IMAGE_ERROR_ERRNO;
+                       *status = MONO_IMAGE_IMAGE_INVALID;
                return NULL;
        }
-       image = g_new0 (MonoImage, 1);
-       image->raw_buffer_used = TRUE;
-       image->raw_data_len = stat_buf.st_size;
-       image->raw_data = mono_file_map (stat_buf.st_size, MONO_MMAP_READ|MONO_MMAP_PRIVATE, fileno (filed), 0, &image->raw_data_handle);
        iinfo = g_new0 (MonoCLIImageInfo, 1);
        image->image_info = iinfo;
        image->name = mono_path_resolve_symlinks (fname);
        image->ref_only = refonly;
        image->ref_count = 1;
 
-       fclose (filed);
-
+       mono_file_map_close (filed);
        return do_mono_image_load (image, status, care_about_cli);
 }
 
@@ -1340,6 +1312,13 @@ mono_dynamic_stream_reset (MonoDynamicStream* stream)
        }
 }
 
+static inline void
+free_hash (GHashTable *hash)
+{
+       if (hash)
+               g_hash_table_destroy (hash);
+}
+
 /**
  * mono_image_close:
  * @image: The image file we wish to close
@@ -1383,10 +1362,11 @@ mono_image_close (MonoImage *image)
         * assemblies, so we can't release these references in mono_assembly_close () since the
         * MonoImage might outlive its associated MonoAssembly.
         */
-       if (image->references) {
+       if (image->references && !image->dynamic) {
+               MonoTableInfo *t = &image->tables [MONO_TABLE_ASSEMBLYREF];
                int i;
 
-               for (i = 0; image->references [i]; i++) {
+               for (i = 0; i < t->rows; i++) {
                        if (image->references [i])
                                mono_assembly_close (image->references [i]);
                }
@@ -1453,37 +1433,39 @@ mono_image_close (MonoImage *image)
                g_hash_table_foreach (image->array_cache, free_array_cache_entry, NULL);
                g_hash_table_destroy (image->array_cache);
        }
+       if (image->szarray_cache)
+               g_hash_table_destroy (image->szarray_cache);
        if (image->ptr_cache)
                g_hash_table_destroy (image->ptr_cache);
        if (image->name_cache) {
                g_hash_table_foreach (image->name_cache, free_hash_table, NULL);
                g_hash_table_destroy (image->name_cache);
        }
-       g_hash_table_destroy (image->native_wrapper_cache);
-       g_hash_table_destroy (image->managed_wrapper_cache);
-       g_hash_table_destroy (image->delegate_begin_invoke_cache);
-       g_hash_table_destroy (image->delegate_end_invoke_cache);
-       g_hash_table_destroy (image->delegate_invoke_cache);
-       if (image->delegate_abstract_invoke_cache)
-               g_hash_table_destroy (image->delegate_abstract_invoke_cache);
-       g_hash_table_foreach (image->remoting_invoke_cache, free_remoting_wrappers, NULL);
-       g_hash_table_destroy (image->remoting_invoke_cache);
-       g_hash_table_destroy (image->runtime_invoke_cache);
-       g_hash_table_destroy (image->runtime_invoke_direct_cache);
-       g_hash_table_destroy (image->synchronized_cache);
-       g_hash_table_destroy (image->unbox_wrapper_cache);
-       g_hash_table_destroy (image->cominterop_invoke_cache);
-       g_hash_table_destroy (image->cominterop_wrapper_cache);
-       g_hash_table_destroy (image->typespec_cache);
-       g_hash_table_destroy (image->ldfld_wrapper_cache);
-       g_hash_table_destroy (image->ldflda_wrapper_cache);
-       g_hash_table_destroy (image->stfld_wrapper_cache);
-       g_hash_table_destroy (image->isinst_cache);
-       g_hash_table_destroy (image->castclass_cache);
-       g_hash_table_destroy (image->proxy_isinst_cache);
-       g_hash_table_destroy (image->thunk_invoke_cache);
-       if (image->static_rgctx_invoke_cache)
-               g_hash_table_destroy (image->static_rgctx_invoke_cache);
+
+       free_hash (image->native_wrapper_cache);
+       free_hash (image->managed_wrapper_cache);
+       free_hash (image->delegate_begin_invoke_cache);
+       free_hash (image->delegate_end_invoke_cache);
+       free_hash (image->delegate_invoke_cache);
+       free_hash (image->delegate_abstract_invoke_cache);
+       if (image->remoting_invoke_cache)
+               g_hash_table_foreach (image->remoting_invoke_cache, free_remoting_wrappers, NULL);
+       free_hash (image->remoting_invoke_cache);
+       free_hash (image->runtime_invoke_cache);
+       free_hash (image->runtime_invoke_direct_cache);
+       free_hash (image->synchronized_cache);
+       free_hash (image->unbox_wrapper_cache);
+       free_hash (image->cominterop_invoke_cache);
+       free_hash (image->cominterop_wrapper_cache);
+       free_hash (image->typespec_cache);
+       free_hash (image->ldfld_wrapper_cache);
+       free_hash (image->ldflda_wrapper_cache);
+       free_hash (image->stfld_wrapper_cache);
+       free_hash (image->isinst_cache);
+       free_hash (image->castclass_cache);
+       free_hash (image->proxy_isinst_cache);
+       free_hash (image->thunk_invoke_cache);
+       free_hash (image->static_rgctx_invoke_cache);
 
        /* The ownership of signatures is not well defined */
        //g_hash_table_foreach (image->memberref_signatures, free_mr_signatures, NULL);
@@ -1526,6 +1508,10 @@ mono_image_close (MonoImage *image)
        if (image->references)
                g_free (image->references);
        mono_perfcounters->loader_bytes -= mono_mempool_get_allocated (image->mempool);
+
+       DeleteCriticalSection (&image->szarray_cache_lock);
+       DeleteCriticalSection (&image->lock);
+
        /*g_print ("destroy image %p (dynamic: %d)\n", image, image->dynamic);*/
        if (!image->dynamic) {
                if (debug_assembly_unload)
@@ -1592,11 +1578,11 @@ mono_image_walk_resource_tree (MonoCLIImageInfo *info, guint32 res_id,
        dir_offset = MONO_PE_RES_DIR_ENTRY_DIR_OFFSET (*entry);
 
        if(level==0) {
-               if((is_string==FALSE && name_offset!=res_id) ||
-                  (is_string==TRUE)) {
-                       return(NULL);
-               }
+               if (is_string)
+                       return NULL;
        } else if (level==1) {
+               if (res_id != name_offset)
+                       return NULL;
 #if 0
                if(name!=NULL &&
                   is_string==TRUE && name!=lookup (name_offset)) {
@@ -1604,12 +1590,8 @@ mono_image_walk_resource_tree (MonoCLIImageInfo *info, guint32 res_id,
                }
 #endif
        } else if (level==2) {
-               if ((is_string == FALSE &&
-                   name_offset != lang_id &&
-                   lang_id != 0) ||
-                  (is_string == TRUE)) {
-                       return(NULL);
-               }
+               if (is_string == TRUE || (is_string == FALSE && lang_id != 0 && name_offset != lang_id))
+                       return NULL;
        } else {
                g_assert_not_reached ();
        }
@@ -1676,6 +1658,8 @@ mono_image_lookup_resource (MonoImage *image, guint32 res_id, guint32 lang_id, g
                return(NULL);
        }
 
+       mono_image_ensure_section_idx (image, MONO_SECTION_RSRC);
+
        info=image->image_info;
        if(info==NULL) {
                return(NULL);
@@ -2009,21 +1993,130 @@ mono_image_has_authenticode_entry (MonoImage *image)
 gpointer
 mono_image_alloc (MonoImage *image, guint size)
 {
+       gpointer res;
+
        mono_perfcounters->loader_bytes += size;
-       return mono_mempool_alloc (image->mempool, size);
+       mono_image_lock (image);
+       res = mono_mempool_alloc (image->mempool, size);
+       mono_image_unlock (image);
+
+       return res;
 }
 
 gpointer
 mono_image_alloc0 (MonoImage *image, guint size)
 {
+       gpointer res;
+
        mono_perfcounters->loader_bytes += size;
-       return mono_mempool_alloc0 (image->mempool, size);
+       mono_image_lock (image);
+       res = mono_mempool_alloc0 (image->mempool, size);
+       mono_image_unlock (image);
+
+       return res;
 }
 
 char*
 mono_image_strdup (MonoImage *image, const char *s)
 {
+       char *res;
+
        mono_perfcounters->loader_bytes += strlen (s);
-       return mono_mempool_strdup (image->mempool, s);
+       mono_image_lock (image);
+       res = mono_mempool_strdup (image->mempool, s);
+       mono_image_unlock (image);
+
+       return res;
+}
+
+GList*
+g_list_prepend_image (MonoImage *image, GList *list, gpointer data)
+{
+       GList *new_list;
+       
+       new_list = mono_image_alloc (image, sizeof (GList));
+       new_list->data = data;
+       new_list->prev = list ? list->prev : NULL;
+    new_list->next = list;
+
+    if (new_list->prev)
+            new_list->prev->next = new_list;
+    if (list)
+            list->prev = new_list;
+
+       return new_list;
+}
+
+GSList*
+g_slist_append_image (MonoImage *image, GSList *list, gpointer data)
+{
+       GSList *new_list;
+
+       new_list = mono_image_alloc (image, sizeof (GSList));
+       new_list->data = data;
+       new_list->next = NULL;
+
+       return g_slist_concat (list, new_list);
+}
+
+void
+mono_image_lock (MonoImage *image)
+{
+       mono_locks_acquire (&image->lock, ImageDataLock);
+}
+
+void
+mono_image_unlock (MonoImage *image)
+{
+       mono_locks_release (&image->lock, ImageDataLock);
+}
+
+
+/**
+ * mono_image_property_lookup:
+ *
+ * Lookup a property on @image. Used to store very rare fields of MonoClass and MonoMethod.
+ *
+ * LOCKING: Takes the image lock
+ */
+gpointer 
+mono_image_property_lookup (MonoImage *image, gpointer subject, guint32 property)
+{
+       gpointer res;
+
+       mono_image_lock (image);
+       res = mono_property_hash_lookup (image->property_hash, subject, property);
+       mono_image_unlock (image);
+
+       return res;
 }
 
+/**
+ * mono_image_property_insert:
+ *
+ * Insert a new property @property with value @value on @subject in @image. Used to store very rare fields of MonoClass and MonoMethod.
+ *
+ * LOCKING: Takes the image lock
+ */
+void
+mono_image_property_insert (MonoImage *image, gpointer subject, guint32 property, gpointer value)
+{
+       mono_image_lock (image);
+       mono_property_hash_insert (image->property_hash, subject, property, value);
+       mono_image_unlock (image);
+}
+
+/**
+ * mono_image_property_remove:
+ *
+ * Remove all properties associated with @subject in @image. Used to store very rare fields of MonoClass and MonoMethod.
+ *
+ * LOCKING: Takes the image lock
+ */
+void
+mono_image_property_remove (MonoImage *image, gpointer subject)
+{
+       mono_image_lock (image);
+       mono_property_hash_remove_object (image->property_hash, subject);
+       mono_image_unlock (image);
+}