Mercurial > jdk8-mips64-public > hotspot / annotate
src/share/vm/ci/ciMethodType.hpp@01522ca68fc7 (annotated)
src/share/vm/ci/ciMethodType.hpp
Tue, 18 Jun 2013 12:31:07 -0700
- author
- johnc
- date
- Tue, 18 Jun 2013 12:31:07 -0700
- changeset 5277
- 01522ca68fc7
- parent 0
- f90c822e73f8
- permissions
- -rw-r--r--
8015237: Parallelize string table scanning during strong root processing
Summary: Parallelize the scanning of the intern string table by having each GC worker claim a given number of buckets. Changes were also reviewed by Per Liden <per.liden@oracle.com>.
Reviewed-by: tschatzl, stefank, twisti
| aoqi@0 | 1 | /* |
| aoqi@0 | 2 | * Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved. |
| aoqi@0 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| aoqi@0 | 4 | * |
| aoqi@0 | 5 | * This code is free software; you can redistribute it and/or modify it |
| aoqi@0 | 6 | * under the terms of the GNU General Public License version 2 only, as |
| aoqi@0 | 7 | * published by the Free Software Foundation. |
| aoqi@0 | 8 | * |
| aoqi@0 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
| aoqi@0 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| aoqi@0 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| aoqi@0 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
| aoqi@0 | 13 | * accompanied this code). |
| aoqi@0 | 14 | * |
| aoqi@0 | 15 | * You should have received a copy of the GNU General Public License version |
| aoqi@0 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
| aoqi@0 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| aoqi@0 | 18 | * |
| aoqi@0 | 19 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| aoqi@0 | 20 | * or visit www.oracle.com if you need additional information or have any |
| aoqi@0 | 21 | * questions. |
| aoqi@0 | 22 | * |
| aoqi@0 | 23 | */ |
| aoqi@0 | 24 | |
| aoqi@0 | 25 | #ifndef SHARE_VM_CI_CIMETHODTYPE_HPP |
| aoqi@0 | 26 | #define SHARE_VM_CI_CIMETHODTYPE_HPP |
| aoqi@0 | 27 | |
| aoqi@0 | 28 | #include "ci/ciInstance.hpp" |
| aoqi@0 | 29 | #include "ci/ciUtilities.hpp" |
| aoqi@0 | 30 | #include "classfile/javaClasses.hpp" |
| aoqi@0 | 31 | |
| aoqi@0 | 32 | // ciMethodType |
| aoqi@0 | 33 | // |
| aoqi@0 | 34 | // The class represents a java.lang.invoke.MethodType object. |
| aoqi@0 | 35 | class ciMethodType : public ciInstance { |
| aoqi@0 | 36 | private: |
| aoqi@0 | 37 | ciType* class_to_citype(oop klass_oop) const { |
| aoqi@0 | 38 | if (java_lang_Class::is_primitive(klass_oop)) { |
| aoqi@0 | 39 | BasicType bt = java_lang_Class::primitive_type(klass_oop); |
| aoqi@0 | 40 | return ciType::make(bt); |
| aoqi@0 | 41 | } else { |
| aoqi@0 | 42 | Klass* k = java_lang_Class::as_Klass(klass_oop); |
| aoqi@0 | 43 | return CURRENT_ENV->get_klass(k); |
| aoqi@0 | 44 | } |
| aoqi@0 | 45 | } |
| aoqi@0 | 46 | |
| aoqi@0 | 47 | public: |
| aoqi@0 | 48 | ciMethodType(instanceHandle h_i) : ciInstance(h_i) {} |
| aoqi@0 | 49 | |
| aoqi@0 | 50 | // What kind of ciObject is this? |
| aoqi@0 | 51 | bool is_method_type() const { return true; } |
| aoqi@0 | 52 | |
| aoqi@0 | 53 | ciType* rtype() const { |
| aoqi@0 | 54 | GUARDED_VM_ENTRY( |
| aoqi@0 | 55 | oop rtype = java_lang_invoke_MethodType::rtype(get_oop()); |
| aoqi@0 | 56 | return class_to_citype(rtype); |
| aoqi@0 | 57 | ) |
| aoqi@0 | 58 | } |
| aoqi@0 | 59 | |
| aoqi@0 | 60 | int ptype_count() const { |
| aoqi@0 | 61 | GUARDED_VM_ENTRY(return java_lang_invoke_MethodType::ptype_count(get_oop());) |
| aoqi@0 | 62 | } |
| aoqi@0 | 63 | |
| aoqi@0 | 64 | int ptype_slot_count() const { |
| aoqi@0 | 65 | GUARDED_VM_ENTRY(return java_lang_invoke_MethodType::ptype_slot_count(get_oop());) |
| aoqi@0 | 66 | } |
| aoqi@0 | 67 | |
| aoqi@0 | 68 | ciType* ptype_at(int index) const { |
| aoqi@0 | 69 | GUARDED_VM_ENTRY( |
| aoqi@0 | 70 | oop ptype = java_lang_invoke_MethodType::ptype(get_oop(), index); |
| aoqi@0 | 71 | return class_to_citype(ptype); |
| aoqi@0 | 72 | ) |
| aoqi@0 | 73 | } |
| aoqi@0 | 74 | }; |
| aoqi@0 | 75 | |
| aoqi@0 | 76 | #endif // SHARE_VM_CI_CIMETHODTYPE_HPP |
