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src/hotspot/share/cds/dumpTimeClassInfo.inline.hpp

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11  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
13  * version 2 for more details (a copy is included in the LICENSE file that
14  * accompanied this code).
15  *
16  * You should have received a copy of the GNU General Public License version
17  * 2 along with this work; if not, write to the Free Software Foundation,
18  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
19  *
20  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
21  * or visit www.oracle.com if you need additional information or have any
22  * questions.
23  *
24  */
25 
26 #ifndef SHARE_CDS_DUMPTIMECLASSINFO_INLINE_HPP
27 #define SHARE_CDS_DUMPTIMECLASSINFO_INLINE_HPP
28 
29 #include "cds/dumpTimeClassInfo.hpp"
30 

31 #include "classfile/systemDictionaryShared.hpp"
32 #include "classfile/classLoaderData.inline.hpp"
33 #include "oops/instanceKlass.hpp"
34 #include "oops/klass.inline.hpp"
35 #include "runtime/safepoint.hpp"
36 
37 #if INCLUDE_CDS
38 
39 // For safety, only iterate over a class if its loader is alive.
40 // This function must be called only inside a safepoint, where the value of
41 // k->is_loader_alive() will not change.
42 template<typename Function>
43 void DumpTimeSharedClassTable::iterate_all_live_classes(Function function) const {
44   auto wrapper = [&] (InstanceKlass* k, DumpTimeClassInfo& info) {
45     assert(SafepointSynchronize::is_at_safepoint(), "invariant");
46     assert_lock_strong(DumpTimeTable_lock);
47     if (k->is_loader_alive()) {



48       function(k, info);
49       assert(k->is_loader_alive(), "must not change");
50     } else {
51       if (!SystemDictionaryShared::is_excluded_class(k)) {
52         SystemDictionaryShared::warn_excluded(k, "Class loader not alive");
53         SystemDictionaryShared::set_excluded_locked(k);
54       }
55     }
56   };
57   DumpTimeSharedClassTableBaseType::iterate_all(wrapper);
58 }
59 













60 
61 template<class ITER>
62 void DumpTimeSharedClassTable::iterate_all_live_classes(ITER* iter) const {
63   auto function = [&] (InstanceKlass* k, DumpTimeClassInfo& v) {
64     iter->do_entry(k, v);
65   };
66   iterate_all_live_classes(function);
67 }
68 
69 #endif // INCLUDE_CDS
70 
71 #endif // SHARE_CDS_DUMPTIMECLASSINFO_INLINE_HPP

11  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
13  * version 2 for more details (a copy is included in the LICENSE file that
14  * accompanied this code).
15  *
16  * You should have received a copy of the GNU General Public License version
17  * 2 along with this work; if not, write to the Free Software Foundation,
18  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
19  *
20  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
21  * or visit www.oracle.com if you need additional information or have any
22  * questions.
23  *
24  */
25 
26 #ifndef SHARE_CDS_DUMPTIMECLASSINFO_INLINE_HPP
27 #define SHARE_CDS_DUMPTIMECLASSINFO_INLINE_HPP
28 
29 #include "cds/dumpTimeClassInfo.hpp"
30 
31 #include "cds/cdsConfig.hpp"
32 #include "classfile/systemDictionaryShared.hpp"
33 #include "classfile/classLoaderData.inline.hpp"
34 #include "oops/instanceKlass.hpp"
35 #include "oops/klass.inline.hpp"
36 #include "runtime/safepoint.hpp"
37 
38 #if INCLUDE_CDS
39 
40 // For safety, only iterate over a class if its loader is alive.
41 // This function must be called only inside a safepoint, where the value of
42 // k->is_loader_alive() will not change.
43 template<typename Function>
44 void DumpTimeSharedClassTable::iterate_all_live_classes(Function function) const {
45   auto wrapper = [&] (InstanceKlass* k, DumpTimeClassInfo& info) {
46     assert(SafepointSynchronize::is_at_safepoint(), "invariant");
47     assert_lock_strong(DumpTimeTable_lock);
48     if (CDSConfig::is_dumping_final_static_archive() && !k->is_loaded()) {
49       assert(k->is_shared_unregistered_class(), "must be");
50       function(k, info);
51     } else if (k->is_loader_alive()) {
52       function(k, info);
53       assert(k->is_loader_alive(), "must not change");
54     } else {
55       if (!SystemDictionaryShared::is_excluded_class(k)) {
56         SystemDictionaryShared::warn_excluded(k, "Class loader not alive");
57         SystemDictionaryShared::set_excluded_locked(k);
58       }
59     }
60   };
61   DumpTimeSharedClassTableBaseType::iterate_all(wrapper);
62 }
63 
64 template<typename Function>
65 void DumpTimeSharedClassTable::iterate_all_classes_in_builtin_loaders(Function function) const {
66   auto wrapper = [&] (InstanceKlass* k, DumpTimeClassInfo& info) {
67     assert_lock_strong(DumpTimeTable_lock);
68     if (SystemDictionaryShared::is_builtin_loader(k->class_loader_data())) {
69        assert(k->is_loader_alive(), "must be");
70        function(k, info);
71        assert(k->is_loader_alive(), "must be");
72     }
73   };
74   DumpTimeSharedClassTableBaseType::iterate_all(wrapper);
75 }
76 
77 
78 template<class ITER>
79 void DumpTimeSharedClassTable::iterate_all_live_classes(ITER* iter) const {
80   auto function = [&] (InstanceKlass* k, DumpTimeClassInfo& v) {
81     iter->do_entry(k, v);
82   };
83   iterate_all_live_classes(function);
84 }
85 
86 #endif // INCLUDE_CDS
87 
88 #endif // SHARE_CDS_DUMPTIMECLASSINFO_INLINE_HPP
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