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src/hotspot/os/linux/waitBarrier_linux.hpp
47 строк
2 KB
Kim Barrett
8234779: Provide idiom for declaring classes noncopyable
04 дек 2019, 03:09
04 дек 2019, 03:09
577e87e
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/* * Copyright (c) 2019, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. * */ #ifndef OS_LINUX_WAITBARRIER_LINUX_HPP #define OS_LINUX_WAITBARRIER_LINUX_HPP #include "memory/allocation.hpp" #include "utilities/globalDefinitions.hpp" class LinuxWaitBarrier : public CHeapObj<mtInternal> { volatile int _futex_barrier; NONCOPYABLE(LinuxWaitBarrier); public: LinuxWaitBarrier() : _futex_barrier(0) {}; ~LinuxWaitBarrier() {}; const char* description() { return "futex"; } void arm(int barrier_tag); void disarm(); void wait(int barrier_tag); }; #endif // OS_LINUX_WAITBARRIER_LINUX_HPP