Mercurial > hg > graal-jvmci-8

comparison src/share/vm/oops/objArrayKlassKlass.cpp @ 2177:3582bf76420e

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
6990754: Use native memory and reference counting to implement SymbolTable Summary: move symbols from permgen into C heap and reference count them Reviewed-by: never, acorn, jmasa, stefank
author coleenp
date Thu, 27 Jan 2011 16:11:27 -0800
parents f95d63e2154a
children e5383553fd4e
comparison
equal deleted inserted replaced
2176:27e4ea99855d 2177:3582bf76420e
108 // The element type is already Object. Object[] has direct super of Object. 108 // The element type is already Object. Object[] has direct super of Object.
109 super_klass = KlassHandle(THREAD, SystemDictionary::Object_klass()); 109 super_klass = KlassHandle(THREAD, SystemDictionary::Object_klass());
110 } 110 }
111 } 111 }
112 112
113 // Create type name for klass (except for symbol arrays, since symbolKlass 113 // Create type name for klass.
114 // does not have a name). This will potentially allocate an object, cause 114 Symbol* name = NULL;
115 // GC, and all other kinds of things. Hence, this must be done before we 115 if (!element_klass->oop_is_instance() ||
116 // get a handle to the new objArrayKlass we want to construct. We cannot 116 (name = instanceKlass::cast(element_klass())->array_name()) == NULL) {
117 // block while holding a handling to a partly initialized object. 117
118 symbolHandle name = symbolHandle();
119
120 if (!element_klass->oop_is_symbol()) {
121 ResourceMark rm(THREAD); 118 ResourceMark rm(THREAD);
122 char *name_str = element_klass->name()->as_C_string(); 119 char *name_str = element_klass->name()->as_C_string();
123 int len = element_klass->name()->utf8_length(); 120 int len = element_klass->name()->utf8_length();
124 char *new_str = NEW_RESOURCE_ARRAY(char, len + 4); 121 char *new_str = NEW_RESOURCE_ARRAY(char, len + 4);
125 int idx = 0; 122 int idx = 0;
131 idx += len; 128 idx += len;
132 if (element_klass->oop_is_instance()) { 129 if (element_klass->oop_is_instance()) {
133 new_str[idx++] = ';'; 130 new_str[idx++] = ';';
134 } 131 }
135 new_str[idx++] = '\0'; 132 new_str[idx++] = '\0';
136 name = oopFactory::new_symbol_handle(new_str, CHECK_0); 133 name = SymbolTable::new_symbol(new_str, CHECK_0);
134 if (element_klass->oop_is_instance()) {
135 instanceKlass* ik = instanceKlass::cast(element_klass());
136 ik->set_array_name(name);
137 }
137 } 138 }
138 139
139 objArrayKlass o; 140 objArrayKlass o;
140 arrayKlassHandle k = arrayKlass::base_create_array_klass(o.vtbl_value(), 141 arrayKlassHandle k = arrayKlass::base_create_array_klass(o.vtbl_value(),
141 objArrayKlass::header_size(), 142 objArrayKlass::header_size(),
142 this_oop, 143 this_oop,
143 CHECK_0); 144 CHECK_0);
144 145
145
146 // Initialize instance variables 146 // Initialize instance variables
147 objArrayKlass* oak = objArrayKlass::cast(k()); 147 objArrayKlass* oak = objArrayKlass::cast(k());
148 oak->set_dimension(n); 148 oak->set_dimension(n);
149 oak->set_element_klass(element_klass()); 149 oak->set_element_klass(element_klass());
150 oak->set_name(name()); 150 oak->set_name(name);
151 // decrement refcount because object arrays are not explicitly freed. The
152 // instanceKlass array_name() keeps the name counted while the klass is
153 // loaded.
154 name->decrement_refcount();
151 155
152 klassOop bk; 156 klassOop bk;
153 if (element_klass->oop_is_objArray()) { 157 if (element_klass->oop_is_objArray()) {
154 bk = objArrayKlass::cast(element_klass())->bottom_klass(); 158 bk = objArrayKlass::cast(element_klass())->bottom_klass();
155 } else { 159 } else {