96 lines
3.1 KiB
C++
96 lines
3.1 KiB
C++
/*
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* Copyright (c) 2021, 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 "compiler/compileBroker.hpp"
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#include "compiler/compileTask.hpp"
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#include "compiler/compilerThread.hpp"
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#include "runtime/sweeper.hpp"
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#include "runtime/thread.inline.hpp"
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// Create a CompilerThread
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CompilerThread::CompilerThread(CompileQueue* queue,
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CompilerCounters* counters)
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: JavaThread(&CompilerThread::thread_entry) {
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_env = NULL;
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_log = NULL;
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_task = NULL;
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_queue = queue;
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_counters = counters;
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_buffer_blob = NULL;
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_compiler = NULL;
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// Compiler uses resource area for compilation, let's bias it to mtCompiler
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resource_area()->bias_to(mtCompiler);
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#ifndef PRODUCT
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_ideal_graph_printer = NULL;
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#endif
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}
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CompilerThread::~CompilerThread() {
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// Delete objects which were allocated on heap.
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delete _counters;
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}
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void CompilerThread::thread_entry(JavaThread* thread, TRAPS) {
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assert(thread->is_Compiler_thread(), "must be compiler thread");
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CompileBroker::compiler_thread_loop();
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}
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bool CompilerThread::can_call_java() const {
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return _compiler != NULL && _compiler->is_jvmci();
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}
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// Create sweeper thread
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CodeCacheSweeperThread::CodeCacheSweeperThread()
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: JavaThread(&CodeCacheSweeperThread::thread_entry) {
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_scanned_compiled_method = NULL;
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}
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void CodeCacheSweeperThread::thread_entry(JavaThread* thread, TRAPS) {
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NMethodSweeper::sweeper_loop();
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}
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void CodeCacheSweeperThread::oops_do_no_frames(OopClosure* f, CodeBlobClosure* cf) {
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JavaThread::oops_do_no_frames(f, cf);
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if (_scanned_compiled_method != NULL && cf != NULL) {
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// Safepoints can occur when the sweeper is scanning an nmethod so
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// process it here to make sure it isn't unloaded in the middle of
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// a scan.
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cf->do_code_blob(_scanned_compiled_method);
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}
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}
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void CodeCacheSweeperThread::nmethods_do(CodeBlobClosure* cf) {
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JavaThread::nmethods_do(cf);
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if (_scanned_compiled_method != NULL && cf != NULL) {
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// Safepoints can occur when the sweeper is scanning an nmethod so
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// process it here to make sure it isn't unloaded in the middle of
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// a scan.
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cf->do_code_blob(_scanned_compiled_method);
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}
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}
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