1 files changed, 37 insertions, 0 deletions
diff --git a/src/crush/CrushLocation.h b/src/crush/CrushLocation.h
new file mode 100644
index 000000000..678135c2e
--- /dev/null
+++ b/src/crush/CrushLocation.h
@@ -0,0 +1,37 @@
+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+
+#ifndef CEPH_CRUSH_LOCATION_H
+#define CEPH_CRUSH_LOCATION_H
+
+#include <iosfwd>
+#include <map>
+#include <string>
+
+#include "common/ceph_mutex.h"
+#include "include/common_fwd.h"
+
+namespace TOPNSPC::crush {
+
+class CrushLocation {
+public:
+  explicit CrushLocation(CephContext *c) : cct(c) {
+    init_on_startup();
+  }
+
+  int update_from_conf();  ///< refresh from config
+  int update_from_hook();  ///< call hook, if present
+  int init_on_startup();
+
+  std::multimap<std::string,std::string> get_location() const;
+
+private:
+  int _parse(const std::string& s);
+  CephContext *cct;
+  std::multimap<std::string,std::string> loc;
+  mutable ceph::mutex lock = ceph::make_mutex("CrushLocation");
+};
+
+std::ostream& operator<<(std::ostream& os, const CrushLocation& loc);
+}
+#endif