121 lines
3.9 KiB
C++
121 lines
3.9 KiB
C++
/*
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* Copyright (c) 2018, 2019, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*
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*/
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#include "precompiled.hpp"
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#include "classfile/stringTable.hpp"
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#include "classfile/systemDictionary.hpp"
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#include "gc/shared/weakProcessorPhases.hpp"
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#include "prims/resolvedMethodTable.hpp"
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#include "runtime/jniHandles.hpp"
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#include "utilities/debug.hpp"
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#include "utilities/macros.hpp"
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#if INCLUDE_JFR
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#include "jfr/jfr.hpp"
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#endif // INCLUDE_JFR
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#if INCLUDE_JVMTI
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#include "prims/jvmtiExport.hpp"
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#endif // INCLUDE_JVMTI
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WeakProcessorPhases::Phase WeakProcessorPhases::phase(uint value) {
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assert(value < phase_count, "Invalid phase value %u", value);
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return static_cast<Phase>(value);
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}
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uint WeakProcessorPhases::index(Phase phase) {
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uint value = static_cast<uint>(phase);
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assert(value < phase_count, "Invalid phase %u", value);
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return value;
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}
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uint WeakProcessorPhases::serial_index(Phase phase) {
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assert(is_serial(phase), "not serial phase %u", index(phase));
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return index(phase) - serial_phase_start;
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}
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uint WeakProcessorPhases::oop_storage_index(Phase phase) {
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assert(is_oop_storage(phase), "not oop storage phase %u", index(phase));
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return index(phase) - oop_storage_phase_start;
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}
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bool WeakProcessorPhases::is_serial(Phase phase) {
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// serial_phase_count is 0 if JFR and JVMTI are both not built,
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// making this check with unsigned lhs redundant
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#if INCLUDE_JVMTI || INCLUDE_JFR
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return (index(phase) - serial_phase_start) < serial_phase_count;
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#else
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STATIC_ASSERT(serial_phase_count == 0);
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return false;
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#endif
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}
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bool WeakProcessorPhases::is_oop_storage(Phase phase) {
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return (index(phase) - oop_storage_phase_start) < oop_storage_phase_count;
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}
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const char* WeakProcessorPhases::description(Phase phase) {
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switch (phase) {
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JVMTI_ONLY(case jvmti: return "JVMTI weak processing";)
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JFR_ONLY(case jfr: return "JFR weak processing";)
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case jni: return "JNI weak processing";
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case stringtable: return "StringTable weak processing";
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case resolved_method_table: return "ResolvedMethodTable weak processing";
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case vm: return "VM weak processing";
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default:
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ShouldNotReachHere();
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return "Invalid weak processing phase";
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}
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}
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WeakProcessorPhases::Processor WeakProcessorPhases::processor(Phase phase) {
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switch (phase) {
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JVMTI_ONLY(case jvmti: return &JvmtiExport::weak_oops_do;)
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JFR_ONLY(case jfr: return &Jfr::weak_oops_do;)
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default:
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ShouldNotReachHere();
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return NULL;
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}
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}
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OopStorage* WeakProcessorPhases::oop_storage(Phase phase) {
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switch (phase) {
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case jni: return JNIHandles::weak_global_handles();
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case stringtable: return StringTable::weak_storage();
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case resolved_method_table: return ResolvedMethodTable::weak_storage();
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case vm: return SystemDictionary::vm_weak_oop_storage();
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default:
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ShouldNotReachHere();
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return NULL;
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}
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}
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bool WeakProcessorPhases::is_stringtable(Phase phase) {
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return phase == stringtable;
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}
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bool WeakProcessorPhases::is_resolved_method_table(Phase phase) {
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return phase == resolved_method_table;
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}
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