terminology_use_previous_enum.h

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#ifndef _TERMINOLOGY_USE_PREVIOUS_ENUM_H_
#define _TERMINOLOGY_USE_PREVIOUS_ENUM_H_
 
/**
  In respect to the organization of modules, this really belongs in
  terminology_use_previous.h.  However, that would create a
  cyclic dependency between header files:
 
  - enum_compatibility_version is needed in pfs_instr_class.h
 
  - PFS_class_type is defined in pfs_instr_class.h and needed in
    instrumentation_class_compatibility.h
 
  So we keep enum_compatibility_version in its own header, included
  from both the other headers, to avoid the cyclicity.
*/
 
namespace terminology_use_previous {
 
/**
  Enumeration holding the possible values for
  @@terminology_use_previous.  Each element corresponds to a
  server release where some instrumentation name was changed.
*/
enum enum_compatibility_version {
  /// Use new names; do not provide backward compatibility
  NONE,
  /// Use names that were in use up to 8.0.25, inclusive.
  BEFORE_8_0_26,
  /// Use names that were in use before 8.2.0.
  BEFORE_8_2_0
};
 
}  // namespace terminology_use_previous
 
#endif  // _TERMINOLOGY_USE_PREVIOUS_ENUM_H_