src/hotspot/share/gc/z/zDriver.hpp
author pliden
Tue, 29 Jan 2019 10:23:38 +0100
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permissions -rw-r--r--
8217858: ZGC: Clean up ZDriver Reviewed-by: stefank, eosterlund
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/*
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 * Copyright (c) 2015, 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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#ifndef SHARE_GC_Z_ZDRIVER_HPP
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#define SHARE_GC_Z_ZDRIVER_HPP
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#include "gc/shared/concurrentGCThread.hpp"
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#include "gc/shared/gcCause.hpp"
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#include "gc/z/zMessagePort.hpp"
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class VM_ZOperation;
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class ZDriver : public ConcurrentGCThread {
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private:
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  ZMessagePort<GCCause::Cause> _gc_cycle_port;
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  ZRendezvousPort              _gc_locker_port;
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  template <typename T> bool pause();
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  void pause_mark_start();
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  void concurrent_mark();
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  bool pause_mark_end();
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  void concurrent_mark_continue();
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  void concurrent_process_non_strong_references();
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  void concurrent_reset_relocation_set();
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  void concurrent_destroy_detached_pages();
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  void pause_verify();
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  void concurrent_select_relocation_set();
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  void concurrent_prepare_relocation_set();
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  void pause_relocate_start();
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  void concurrent_relocate();
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  void check_out_of_memory();
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  void gc(GCCause::Cause cause);
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protected:
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  virtual void run_service();
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  virtual void stop_service();
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public:
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  ZDriver();
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  void collect(GCCause::Cause cause);
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};
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#endif // SHARE_GC_Z_ZDRIVER_HPP