zMountPoint_linux.hpp

/*
 * Copyright (c) 2016, 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).
 *
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 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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#ifndef OS_LINUX_GC_Z_ZMOUNTPOINT_LINUX_HPP
#define OS_LINUX_GC_Z_ZMOUNTPOINT_LINUX_HPP

#include "gc/z/zArray.hpp"
#include "memory/allocation.hpp"

class ZMountPoint : public StackObj {
private:
  char* _path;

  char* get_mountpoint(const char* line,
                       const char* filesystem) const;
  void get_mountpoints(const char* filesystem,
                       ZArray<char*>* mountpoints) const;
  void free_mountpoints(ZArray<char*>* mountpoints) const;
  char* find_preferred_mountpoint(const char* filesystem,
                                  ZArray<char*>* mountpoints,
                                  const char** preferred_mountpoints) const;
  char* find_mountpoint(const char* filesystem,
                        const char** preferred_mountpoints) const;

public:
  ZMountPoint(const char* filesystem, const char** preferred_mountpoints);
  ~ZMountPoint();

  const char* get() const;
};

#endif // OS_LINUX_GC_Z_ZMOUNTPOINT_LINUX_HPP