ESModuleCallingContext.h

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#ifndef FWCore_ServiceRegistry_ESModuleCallingContext_h
#define FWCore_ServiceRegistry_ESModuleCallingContext_h
 
//
// Original Author: W. David Dagenhart
//         Created: 7/11/2013
 
#include "FWCore/ServiceRegistry/interface/ESParentContext.h"
 
#include <iosfwd>
 
namespace edm {
 
  namespace eventsetup {
    struct ComponentDescription;
  }
  class ModuleCallingContext;
  class ESModuleCallingContext {
  public:
    using Type = ESParentContext::Type;
 
    enum class State {
      kPrefetching,  // prefetching products before starting to run
      kRunning,      // module actually running
      kInvalid
    };
 
    ESModuleCallingContext(edm::eventsetup::ComponentDescription const* moduleDescription);
 
    ESModuleCallingContext(edm::eventsetup::ComponentDescription const* moduleDescription,
                           State state,
                           ESParentContext const& parent);
 
    void setContext(State state, ESParentContext const& parent);
 
    void setState(State state) { state_ = state; }
 
    edm::eventsetup::ComponentDescription const* componentDescription() const { return componentDescription_; }
    State state() const { return state_; }
    Type type() const { return parent_.type(); }
    ESParentContext const& parent() const { return parent_; }
    ModuleCallingContext const* moduleCallingContext() const { return parent_.moduleCallingContext(); }
    ESModuleCallingContext const* esmoduleCallingContext() const { return parent_.esmoduleCallingContext(); }
 
    // This function will iterate up a series of linked context objects to
    // find the highest level ModuleCallingContext.
    ModuleCallingContext const* getTopModuleCallingContext() const;
 
    // Returns the number of ESModuleCallingContexts above this ESModuleCallingContext
    // in the series of linked context objects.
    unsigned depth() const;
 
  private:
    edm::eventsetup::ComponentDescription const* componentDescription_;
    ESParentContext parent_;
    State state_;
  };
}  // namespace edm
#endif