ceph/src/crush/CrushLocation.h

   1 // -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
   2 // vim: ts=8 sw=2 smarttab
   3
   4 #ifndef CEPH_CRUSH_LOCATION_H
   5 #define CEPH_CRUSH_LOCATION_H
   6
   7 #include <map>
   8 #include <mutex>
   9 #include <string>
  10
  11 class CephContext;
  12
  13 class CrushLocation {
  14   CephContext *cct;
  15   std::multimap<std::string,std::string> loc;
  16   std::mutex lock;
  17
  18   int _parse(const std::string& s);
  19
  20 public:
  21   CrushLocation(CephContext *c) : cct(c) {
  22     update_from_conf();
  23   }
  24
  25   int update_from_conf();  ///< refresh from config
  26   int update_from_hook();  ///< call hook, if present
  27   int init_on_startup();
  28
  29   std::multimap<std::string,std::string> get_location() {
  30     std::lock_guard<std::mutex> l(lock);
  31     return loc;
  32   }
  33 };
  34
  35 #endif