66 lines
2.3 KiB
C++
66 lines
2.3 KiB
C++
//
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// Copyright (c) 2007, 2013, 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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#include "precompiled.hpp"
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#include "compiler/abstractCompiler.hpp"
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#include "compiler/compileBroker.hpp"
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#include "runtime/mutexLocker.hpp"
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bool AbstractCompiler::should_perform_init() {
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if (_compiler_state != initialized) {
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MutexLocker only_one(CompileThread_lock);
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if (_compiler_state == uninitialized) {
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_compiler_state = initializing;
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return true;
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} else {
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while (_compiler_state == initializing) {
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CompileThread_lock->wait();
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}
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}
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}
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return false;
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}
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bool AbstractCompiler::should_perform_shutdown() {
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// Since this method can be called by multiple threads, the lock ensures atomicity of
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// decrementing '_num_compiler_threads' and the following operations.
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MutexLocker only_one(CompileThread_lock);
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_num_compiler_threads--;
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assert (CompileBroker::is_compilation_disabled_forever(), "Must be set, otherwise thread waits forever");
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// Only the last thread will perform shutdown operations
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if (_num_compiler_threads == 0) {
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return true;
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}
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return false;
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}
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void AbstractCompiler::set_state(int state) {
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// Ensure that state is only set by one thread at a time
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MutexLocker only_one(CompileThread_lock);
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_compiler_state = state;
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CompileThread_lock->notify_all();
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}
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