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 <iosfwd>
   8 #include <map>
   9 #include <string>
  10
  11 #include "common/ceph_mutex.h"
  12 #include "include/common_fwd.h"
  13
  14 namespace TOPNSPC::crush {
  15
  16 class CrushLocation {
  17 public:
  18   explicit CrushLocation(CephContext *c) : cct(c) {
  19     init_on_startup();
  20   }
  21
  22   int update_from_conf();  ///< refresh from config
  23   int update_from_hook();  ///< call hook, if present
  24   int init_on_startup();
  25
  26   std::multimap<std::string,std::string> get_location() const;
  27
  28 private:
  29   int _parse(const std::string& s);
  30   CephContext *cct;
  31   std::multimap<std::string,std::string> loc;
  32   mutable ceph::mutex lock = ceph::make_mutex("CrushLocation");
  33 };
  34
  35 std::ostream& operator<<(std::ostream& os, const CrushLocation& loc);
  36 }
  37 #endif