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src/hotspot/share/gc/z/zHeap.hpp

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   1 /*
   2  * Copyright (c) 2015, 2019, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */


 102   // Workers
 103   uint nconcurrent_worker_threads() const;
 104   uint nconcurrent_no_boost_worker_threads() const;
 105   void set_boost_worker_threads(bool boost);
 106   void worker_threads_do(ThreadClosure* tc) const;
 107   void print_worker_threads_on(outputStream* st) const;
 108 
 109   // Reference processing
 110   ReferenceDiscoverer* reference_discoverer();
 111   void set_soft_reference_policy(bool clear);
 112 
 113   // Non-strong reference processing
 114   void process_non_strong_references();
 115 
 116   // Page allocation
 117   ZPage* alloc_page(uint8_t type, size_t size, ZAllocationFlags flags);
 118   void undo_alloc_page(ZPage* page);
 119   void free_page(ZPage* page, bool reclaimed);
 120 
 121   // Uncommit memory
 122   uint64_t uncommit(uint64_t delay);

 123 
 124   // Object allocation
 125   uintptr_t alloc_tlab(size_t size);
 126   uintptr_t alloc_object(size_t size);
 127   uintptr_t alloc_object_for_relocation(size_t size);
 128   void undo_alloc_object_for_relocation(uintptr_t addr, size_t size);
 129   bool is_alloc_stalled() const;
 130   void check_out_of_memory();
 131 
 132   // Marking
 133   bool is_object_live(uintptr_t addr) const;
 134   bool is_object_strongly_live(uintptr_t addr) const;
 135   template <bool follow, bool finalizable, bool publish> void mark_object(uintptr_t addr);
 136   void mark_start();
 137   void mark(bool initial);
 138   void mark_flush_and_free(Thread* thread);
 139   bool mark_end();
 140   void keep_alive(oop obj);
 141 
 142   // Relocation set


   1 /*
   2  * Copyright (c) 2015, 2020, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */


 102   // Workers
 103   uint nconcurrent_worker_threads() const;
 104   uint nconcurrent_no_boost_worker_threads() const;
 105   void set_boost_worker_threads(bool boost);
 106   void worker_threads_do(ThreadClosure* tc) const;
 107   void print_worker_threads_on(outputStream* st) const;
 108 
 109   // Reference processing
 110   ReferenceDiscoverer* reference_discoverer();
 111   void set_soft_reference_policy(bool clear);
 112 
 113   // Non-strong reference processing
 114   void process_non_strong_references();
 115 
 116   // Page allocation
 117   ZPage* alloc_page(uint8_t type, size_t size, ZAllocationFlags flags);
 118   void undo_alloc_page(ZPage* page);
 119   void free_page(ZPage* page, bool reclaimed);
 120 
 121   // Uncommit memory
 122   uint64_t uncommit();
 123   void uncommit_cancel();
 124 
 125   // Object allocation
 126   uintptr_t alloc_tlab(size_t size);
 127   uintptr_t alloc_object(size_t size);
 128   uintptr_t alloc_object_for_relocation(size_t size);
 129   void undo_alloc_object_for_relocation(uintptr_t addr, size_t size);
 130   bool is_alloc_stalled() const;
 131   void check_out_of_memory();
 132 
 133   // Marking
 134   bool is_object_live(uintptr_t addr) const;
 135   bool is_object_strongly_live(uintptr_t addr) const;
 136   template <bool follow, bool finalizable, bool publish> void mark_object(uintptr_t addr);
 137   void mark_start();
 138   void mark(bool initial);
 139   void mark_flush_and_free(Thread* thread);
 140   bool mark_end();
 141   void keep_alive(oop obj);
 142 
 143   // Relocation set


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