src/build/libroot/NodeRef.h

   1 /*
   2  * Copyright 2005-2008, Haiku, Inc. All Rights Reserved.
   3  * Distributed under the terms of the MIT License.
   4  */
   5 #ifndef NODE_REF_H
   6 #define NODE_REF_H
   7
   8 #include <sys/stat.h>
   9
  10 namespace BPrivate {
  11
  12 struct NodeRef {
  13         dev_t   device;
  14         ino_t   node;
  15
  16         NodeRef(dev_t device = 0, ino_t node = 0)
  17                 : device(device),
  18                   node(node)
  19         {
  20         }
  21
  22         NodeRef(const struct stat &st)
  23                 : device(st.st_dev),
  24                   node(st.st_ino)
  25         {
  26         }
  27
  28         NodeRef(const NodeRef &other)
  29         {
  30                 device = other.device;
  31                 node = other.node;
  32         }
  33
  34         NodeRef &operator=(const NodeRef &other)
  35         {
  36                 device = other.device;
  37                 node = other.node;
  38                 return *this;
  39         }
  40
  41         bool operator==(const NodeRef &other) const
  42         {
  43                 return (device == other.device && node == other.node);
  44         }
  45
  46         bool operator!=(const NodeRef &other) const
  47         {
  48                 return !(*this == other);
  49         }
  50
  51         bool operator<(const NodeRef &other) const
  52         {
  53                 return (device < other.device
  54                         || (device == other.device && node < other.node));
  55         }
  56
  57 };
  58
  59 } // namespace BPrivate
  60
  61 #endif  // NODE_REF_H