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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/* */
/* This file is part of the program and library */
/* SCIP --- Solving Constraint Integer Programs */
/* */
/* Copyright 2002-2022 Zuse Institute Berlin */
/* */
/* Licensed under the Apache License, Version 2.0 (the "License"); */
/* you may not use this file except in compliance with the License. */
/* You may obtain a copy of the License at */
/* */
/* http://www.apache.org/licenses/LICENSE-2.0 */
/* */
/* Unless required by applicable law or agreed to in writing, software */
/* distributed under the License is distributed on an "AS IS" BASIS, */
/* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. */
/* See the License for the specific language governing permissions and */
/* limitations under the License. */
/* */
/* You should have received a copy of the Apache-2.0 license */
/* along with SCIP; see the file LICENSE. If not visit scipopt.org. */
/* */
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/**@file struct_bandit.h
* @ingroup INTERNALAPI
* @brief data structures for bandit selection algorithms
* @author Gregor Hendel
*/
/*---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8----+----9----+----0----+----1----+----2*/
#ifndef __SCIP_STRUCT_BANDIT_H__
#define __SCIP_STRUCT_BANDIT_H__
#include "scip/def.h"
#include "misc.h"
#include "scip/type_clock.h"
#include "scip/type_bandit.h"
#ifdef __cplusplus
extern "C" {
#endif
/** virtual function table for bandit selection algorithms */
struct SCIP_BanditVTable
{
const char* name; /**< name of the represented bandit algorithm */
SCIP_DECL_BANDITFREE ((*banditfree)); /**< callback to free bandit specific data structures */
SCIP_DECL_BANDITSELECT((*banditselect)); /**< selection callback for bandit selector */
SCIP_DECL_BANDITUPDATE((*banditupdate)); /**< update callback for bandit algorithms */
SCIP_DECL_BANDITRESET ((*banditreset)); /**< update callback for bandit algorithms */
};
/** data structure for bandit algorithms */
struct SCIP_Bandit
{
SCIP_BANDITVTABLE* vtable; /**< virtual function table for callbacks */
SCIP_RANDNUMGEN* rng; /**< random number generator for randomized selection */
int nactions; /**< the number of actions to select from */
SCIP_BANDITDATA* data; /**< specific data for bandit algorithm implementations */
};
#ifdef __cplusplus
}
#endif
#endif