/* * Copyright (c) 2019, 2020, 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_BSD_GC_Z_ZPHYSICALMEMORYBACKING_BSD_HPP #define OS_BSD_GC_Z_ZPHYSICALMEMORYBACKING_BSD_HPP class ZPhysicalMemoryBacking { private: uintptr_t _base; bool _initialized; bool commit_inner(size_t offset, size_t length); public: ZPhysicalMemoryBacking(size_t max_capacity); bool is_initialized() const; void warn_commit_limits(size_t max) const; size_t commit(size_t offset, size_t length); size_t uncommit(size_t offset, size_t length); void map(uintptr_t addr, size_t size, uintptr_t offset) const; void unmap(uintptr_t addr, size_t size) const; }; #endif // OS_BSD_GC_Z_ZPHYSICALMEMORYBACKING_BSD_HPP