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// -*- C++ -*-
//=============================================================================
/**
* @file Operation_Table_Perfect_Hash.h
*
* @author Aniruddha Gokhale
*/
//=============================================================================
#ifndef TAO_OPERATION_TABLE_PERFECT_HASH_H
#define TAO_OPERATION_TABLE_PERFECT_HASH_H
#include /**/ "ace/pre.h"
#include "tao/PortableServer/portableserver_export.h"
#if !defined (ACE_LACKS_PRAGMA_ONCE)
# pragma once
#endif /* ACE_LACKS_PRAGMA_ONCE */
#include "tao/PortableServer/Operation_Table.h"
TAO_BEGIN_VERSIONED_NAMESPACE_DECL
/**
* @class TAO_Perfect_Hash_OpTable
*
* @brief Helper class for use of perfect hashing operation lookup
* strategy.
*
* This class declares pure virtual methods called 'lookup ()'
* and 'hash ()' which will be generated by the GPERF
* program. These methods are used by 'bind ()' and 'find ()'
* methods. Subclasses will define the lookup and hash
* functions.
*/
class TAO_PortableServer_Export TAO_Perfect_Hash_OpTable
: public TAO_Operation_Table
{
public:
/// Do nothing destructor.
~TAO_Perfect_Hash_OpTable () override = default;
/// See the documentation in the base class for details.
int find (const char *opname,
TAO_Skeleton &skelfunc,
const unsigned int length = 0) override;
int find (const char *opname,
TAO_Collocated_Skeleton &skelfunc,
TAO::Collocation_Strategy s,
const unsigned int length = 0) override;
int bind (const char *opname,
const TAO::Operation_Skeletons skel_ptr) override;
private:
// = Methods that should defined by the subclasses. GPERF program
// will generate these routines.
virtual unsigned int hash (const char *str, unsigned int len) = 0;
virtual const TAO_operation_db_entry* lookup (const char *str, unsigned int len) = 0;
};
TAO_END_VERSIONED_NAMESPACE_DECL
#include /**/ "ace/post.h"
#endif /* TAO_OPERATION_TABLE_PERFECT_HASH_H */
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