1 /*
   2  * Copyright (c) 2015, 2017, 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  */

  34 inline ZVirtualMemory::ZVirtualMemory(uintptr_t start, size_t size) :
  35     _start(start),
  36     _end(start + size) {}
  37 
  38 inline bool ZVirtualMemory::is_null() const {
  39   return _start == UINTPTR_MAX;
  40 }
  41 
  42 inline uintptr_t ZVirtualMemory::start() const {
  43   return _start;
  44 }
  45 
  46 inline uintptr_t ZVirtualMemory::end() const {
  47   return _end;
  48 }
  49 
  50 inline size_t ZVirtualMemory::size() const {
  51   return _end - _start;
  52 }
  53 
  54 inline ZVirtualMemory ZVirtualMemory::split(size_t split_size) {
  55   assert(split_size <= size(), "precondition");
  56   ZVirtualMemory mem(_start, split_size);
  57   _start += split_size;
  58   return mem;
  59 }
  60 
  61 inline void ZVirtualMemory::clear() {
  62   _start = UINTPTR_MAX;
  63   _end = UINTPTR_MAX;
  64 }
  65 
  66 #endif // SHARE_GC_Z_ZVIRTUALMEMORY_INLINE_HPP

   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  */

  34 inline ZVirtualMemory::ZVirtualMemory(uintptr_t start, size_t size) :
  35     _start(start),
  36     _end(start + size) {}
  37 
  38 inline bool ZVirtualMemory::is_null() const {
  39   return _start == UINTPTR_MAX;
  40 }
  41 
  42 inline uintptr_t ZVirtualMemory::start() const {
  43   return _start;
  44 }
  45 
  46 inline uintptr_t ZVirtualMemory::end() const {
  47   return _end;
  48 }
  49 
  50 inline size_t ZVirtualMemory::size() const {
  51   return _end - _start;
  52 }
  53 
  54 inline ZVirtualMemory ZVirtualMemory::split(size_t size) {
  55   _start += size;
  56   return ZVirtualMemory(_start - size, size);







  57 }
  58 
  59 #endif // SHARE_GC_Z_ZVIRTUALMEMORY_INLINE_HPP