1 /*
2 * Copyright (c) 2014, 2017, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
39 { }
40
41 G1ScanClosureBase::G1ScanClosureBase(G1CollectedHeap* g1h, G1ParScanThreadState* par_scan_state) :
42 _g1h(g1h), _par_scan_state(par_scan_state), _from(NULL)
43 { }
44
45 void G1CLDScanClosure::do_cld(ClassLoaderData* cld) {
46 // If the class loader data has not been dirtied we know that there's
47 // no references into the young gen and we can skip it.
48 if (!_process_only_dirty || cld->has_modified_oops()) {
49
50 // Tell the closure that this class loader data is the CLD to scavenge
51 // and is the one to dirty if oops are left pointing into the young gen.
52 _closure->set_scanned_cld(cld);
53
54 // Clean the cld since we're going to scavenge all the metadata.
55 // Clear modified oops only if this cld is claimed.
56 cld->oops_do(_closure, _must_claim, /*clear_modified_oops*/true);
57
58 _closure->set_scanned_cld(NULL);
59 }
60 _count++;
61 }
62
63 // Generate G1 specialized oop_oop_iterate functions.
64 SPECIALIZED_OOP_OOP_ITERATE_CLOSURES_G1(ALL_KLASS_OOP_OOP_ITERATE_DEFN)
|
1 /*
2 * Copyright (c) 2014, 2018, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
39 { }
40
41 G1ScanClosureBase::G1ScanClosureBase(G1CollectedHeap* g1h, G1ParScanThreadState* par_scan_state) :
42 _g1h(g1h), _par_scan_state(par_scan_state), _from(NULL)
43 { }
44
45 void G1CLDScanClosure::do_cld(ClassLoaderData* cld) {
46 // If the class loader data has not been dirtied we know that there's
47 // no references into the young gen and we can skip it.
48 if (!_process_only_dirty || cld->has_modified_oops()) {
49
50 // Tell the closure that this class loader data is the CLD to scavenge
51 // and is the one to dirty if oops are left pointing into the young gen.
52 _closure->set_scanned_cld(cld);
53
54 // Clean the cld since we're going to scavenge all the metadata.
55 // Clear modified oops only if this cld is claimed.
56 cld->oops_do(_closure, _must_claim, /*clear_modified_oops*/true);
57
58 _closure->set_scanned_cld(NULL);
59
60 _closure->trim_queue_partially();
61 }
62 _count++;
63 }
64
65 // Generate G1 specialized oop_oop_iterate functions.
66 SPECIALIZED_OOP_OOP_ITERATE_CLOSURES_G1(ALL_KLASS_OOP_OOP_ITERATE_DEFN)
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