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 */ 23 24 #ifndef SHARE_GC_Z_ZVIRTUALMEMORY_INLINE_HPP 25 #define SHARE_GC_Z_ZVIRTUALMEMORY_INLINE_HPP 26 27 #include "gc/z/zMemory.inline.hpp" 28 #include "gc/z/zVirtualMemory.hpp" 29 30 inline ZVirtualMemory::ZVirtualMemory() : 31 _start(UINTPTR_MAX), 32 _end(UINTPTR_MAX) {} 33 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