1 /*
   2  * Copyright (c) 2016, 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  */
  23 
  24 #ifndef OS_CPU_LINUX_X86_GC_Z_ZBACKINGPATH_LINUX_X86_HPP
  25 #define OS_CPU_LINUX_X86_GC_Z_ZBACKINGPATH_LINUX_X86_HPP
  26 
  27 #include "gc/z/zArray.hpp"
  28 #include "memory/allocation.hpp"
  29 
  30 class ZBackingPath : public StackObj {
  31 private:
  32   char* _path;
  33 
  34   char* get_mountpoint(const char* line,
  35                        const char* filesystem) const;
  36   void get_mountpoints(const char* filesystem,
  37                        ZArray<char*>* mountpoints) const;
  38   void free_mountpoints(ZArray<char*>* mountpoints) const;
  39   char* find_preferred_mountpoint(const char* filesystem,
  40                                   ZArray<char*>* mountpoints,
  41                                   const char** preferred_mountpoints) const;
  42   char* find_mountpoint(const char* filesystem,
  43                         const char** preferred_mountpoints) const;
  44 
  45 public:
  46   ZBackingPath(const char* filesystem, const char** preferred_mountpoints);
  47   ~ZBackingPath();
  48 
  49   const char* get() const;
  50 };
  51 
  52 #endif // OS_CPU_LINUX_X86_GC_Z_ZBACKINGPATH_LINUX_X86_HPP