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#ifndef FWCore_ParameterSet_Registry_h
#define FWCore_ParameterSet_Registry_h
// ----------------------------------------------------------------------
// Declaration for pset::Registry. This is an implementation detail of
// the ParameterSet library.
//
// A Registry is used to keep track of the persistent form of all
// ParameterSets used a given program, so that they may be retrieved by
// ParameterSetID, and so they may be written to persistent storage.
// Note that this registry is *not* directly persistable. The contents
// are persisted, but not the container.
// ----------------------------------------------------------------------
#include <iosfwd>
#include <map>
#include "oneapi/tbb/concurrent_unordered_map.h"
#include "DataFormats/Provenance/interface/ParameterSetID.h"
#include "DataFormats/Provenance/interface/ParameterSetBlob.h"
#include "FWCore/ParameterSet/interface/ParameterSet.h"
namespace edm {
namespace pset {
class Registry {
public:
typedef edm::ParameterSetID key_type;
typedef edm::ParameterSet value_type;
static Registry* instance();
/// Retrieve the value_type object with the given key.
/// If we return 'true', then 'result' carries the
/// value_type object.
/// If we return 'false, no matching key was found, and
/// the value of 'result' is undefined.
bool getMapped(key_type const& k, value_type& result) const;
/** Retrieve a pointer to the value_type object with the given key.
If there is no object associated with the given key 0 is returned.
*/
value_type const* getMapped(key_type const& k) const;
/// Insert the given value_type object into the
/// registry. If there was already a value_type object
/// with the same key, we don't change it. This should be OK,
/// since it should have the same contents if the key is the
/// same. Return 'true' if we really added the new
/// value_type object, and 'false' if the
/// value_type object was already present.
bool insertMapped(value_type const& v, bool forceUpdate = false);
///Not thread safe
void clear();
struct key_hash {
std::size_t operator()(key_type const& iKey) const { return iKey.smallHash(); }
};
typedef oneapi::tbb::concurrent_unordered_map<key_type, value_type, key_hash> map_type;
typedef map_type::const_iterator const_iterator;
const_iterator begin() const { return m_map.begin(); }
const_iterator end() const { return m_map.end(); }
bool empty() const { return m_map.empty(); }
size_t size() const { return m_map.size(); }
/// Fill the given map with the persistent form of each
/// ParameterSet in the registry.
typedef std::map<ParameterSetID, ParameterSetBlob> regmap_type;
void fillMap(regmap_type& fillme) const;
void print(std::ostream& os) const;
private:
map_type m_map;
};
} // namespace pset
} // namespace edm
#endif
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