1 files changed, 100 insertions, 0 deletions
diff --git a/src/common/config_values.h b/src/common/config_values.h
new file mode 100644
index 000000000..5cf79eee6
--- /dev/null
+++ b/src/common/config_values.h
@@ -0,0 +1,100 @@
+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+
+#pragma once
+
+#include <cstdint>
+#include <map>
+#include <set>
+#include <string>
+#include <utility>
+
+#include "common/entity_name.h"
+#include "common/options.h"
+#include "log/SubsystemMap.h"
+#include "msg/msg_types.h"
+
+// @c ConfigValues keeps track of mappings from the config names to their values,
+// debug logging settings, and some other "unnamed" settings, like entity name of
+// the daemon.
+class ConfigValues {
+  using values_t = std::map<std::string_view, std::map<int32_t,Option::value_t>>;
+  values_t values;
+  // for populating md_config_impl::legacy_values in ctor
+  friend struct md_config_t;
+
+public:
+  EntityName name;
+  /// cluster name
+  std::string cluster;
+  ceph::logging::SubsystemMap subsys;
+  bool no_mon_config = false;
+  // Set of configuration options that have changed since the last
+  // apply_changes
+  using changed_set_t = std::set<std::string>;
+  changed_set_t changed;
+
+// This macro block defines C members of the md_config_t struct
+// corresponding to the definitions in legacy_config_opts.h.
+// These C members are consumed by code that was written before
+// the new options.cc infrastructure: all newer code should
+// be consume options via explicit get() rather than C members.
+#define OPTION_OPT_INT(name) int64_t name;
+#define OPTION_OPT_LONGLONG(name) int64_t name;
+#define OPTION_OPT_STR(name) std::string name;
+#define OPTION_OPT_DOUBLE(name) double name;
+#define OPTION_OPT_FLOAT(name) double name;
+#define OPTION_OPT_BOOL(name) bool name;
+#define OPTION_OPT_ADDR(name) entity_addr_t name;
+#define OPTION_OPT_ADDRVEC(name) entity_addrvec_t name;
+#define OPTION_OPT_U32(name) uint64_t name;
+#define OPTION_OPT_U64(name) uint64_t name;
+#define OPTION_OPT_UUID(name) uuid_d name;
+#define OPTION_OPT_SIZE(name) uint64_t name;
+#define OPTION(name, ty)       \
+  public:                      \
+    OPTION_##ty(name)          
+#define SAFE_OPTION(name, ty)       \
+  protected:                        \
+    OPTION_##ty(name)               
+#include "common/legacy_config_opts.h"
+#undef OPTION_OPT_INT
+#undef OPTION_OPT_LONGLONG
+#undef OPTION_OPT_STR
+#undef OPTION_OPT_DOUBLE
+#undef OPTION_OPT_FLOAT
+#undef OPTION_OPT_BOOL
+#undef OPTION_OPT_ADDR
+#undef OPTION_OPT_ADDRVEC
+#undef OPTION_OPT_U32
+#undef OPTION_OPT_U64
+#undef OPTION_OPT_UUID
+#undef OPTION
+#undef SAFE_OPTION
+
+public:
+  enum set_value_result_t {
+    SET_NO_CHANGE,
+    SET_NO_EFFECT,
+    SET_HAVE_EFFECT,
+  };
+  /**
+   * @return true if changed, false otherwise
+   */
+  set_value_result_t set_value(std::string_view key,
+                               Option::value_t&& value,
+                               int level);
+  int rm_val(const std::string_view key, int level);
+  void set_logging(int which, const char* val);
+  /**
+   * @param level the level of the setting, -1 for the one with the 
+   *              highest-priority
+   */
+  std::pair<Option::value_t, bool> get_value(const std::string_view name,
+                                             int level) const;
+  template<typename Func> void for_each(Func&& func) const {
+    for (const auto& [name,configs] : values) {
+      func(name, configs);
+    }
+  }
+  bool contains(const std::string_view key) const;
+};