scip_compr.h

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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/*                                                                           */
/*                  This file is part of the program and library             */
/*         SCIP --- Solving Constraint Integer Programs                      */
/*                                                                           */
/*    Copyright (C) 2002-2019 Konrad-Zuse-Zentrum                            */
/*                            fuer Informationstechnik Berlin                */
/*                                                                           */
/*  SCIP is distributed under the terms of the ZIB Academic License.         */
/*                                                                           */
/*  You should have received a copy of the ZIB Academic License              */
/*  along with SCIP; see the file COPYING. If not visit scip.zib.de.         */
/*                                                                           */
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */

/**@file   scip_compr.h
 * @ingroup PUBLICCOREAPI
 * @brief  public methods for compression plugins
 * @author Tobias Achterberg
 * @author Timo Berthold
 * @author Thorsten Koch
 * @author Alexander Martin
 * @author Marc Pfetsch
 * @author Kati Wolter
 * @author Gregor Hendel
 * @author Robert Lion Gottwald
 */

/*---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8----+----9----+----0----+----1----+----2*/

#ifndef __SCIP_SCIP_COMPR_H__
#define __SCIP_SCIP_COMPR_H__


#include "scip/def.h"
#include "scip/type_compr.h"
#include "scip/type_result.h"
#include "scip/type_retcode.h"
#include "scip/type_scip.h"

/* In debug mode, we include the SCIP's structure in scip.c, such that no one can access
 * this structure except the interface methods in scip.c.
 * In optimized mode, the structure is included in scip.h, because some of the methods
 * are implemented as defines for performance reasons (e.g. the numerical comparisons).
 * Additionally, the internal "set.h" is included, such that the defines in set.h are
 * available in optimized mode.
 */
#ifdef NDEBUG
#include "scip/struct_scip.h"
#include "scip/struct_stat.h"
#include "scip/set.h"
#include "scip/tree.h"
#include "scip/misc.h"
#include "scip/var.h"
#include "scip/cons.h"
#include "scip/solve.h"
#include "scip/debug.h"
#endif

#ifdef __cplusplus
extern "C" {
#endif

/**@addtogroup PublicCompressionMethods
 *
 * @{
 */
/** creates a tree compression and includes it in SCIP.
 *
 *  @note method has all compression callbacks as arguments and is thus changed every time a new
 *        callback is added in future releases; consider using SCIPincludeComprBasic() and setter functions
 *        if you seek for a method which is less likely to change in future releases
 */
extern
SCIP_RETCODE SCIPincludeCompr(
   SCIP*                 scip,               /**< SCIP data structure */
   const char*           name,               /**< name of tree compression */
   const char*           desc,               /**< description of tree compression */
   int                   priority,           /**< priority of the tree compression */
   int                   minnnodes,          /**< minimal number of nodes to call compression */
   SCIP_DECL_COMPRCOPY   ((*comprcopy)),     /**< copy method of tree compression or NULL if you don't want to copy your plugin into sub-SCIPs */
   SCIP_DECL_COMPRFREE   ((*comprfree)),     /**< destructor of tree compression */
   SCIP_DECL_COMPRINIT   ((*comprinit)),     /**< initialize tree compression */
   SCIP_DECL_COMPREXIT   ((*comprexit)),     /**< deinitialize tree compression */
   SCIP_DECL_COMPRINITSOL ((*comprinitsol)), /**< solving process initialization method of tree compression */
   SCIP_DECL_COMPREXITSOL ((*comprexitsol)), /**< solving process deinitialization method of tree compression */
   SCIP_DECL_COMPREXEC   ((*comprexec)),     /**< execution method of tree compression */
   SCIP_COMPRDATA*       comprdata           /**< tree compression data */
   );

/** creates a tree compression and includes it in SCIP with its most fundamental callbacks.
 *  All non-fundamental (or optional) callbacks
 *  as, e. g., init and exit callbacks, will be set to NULL.
 *  Optional callbacks can be set via specific setter functions, see SCIPsetComprCopy(), SCIPsetComprFree(),
 *  SCIPsetComprInit(), SCIPsetComprExit(), SCIPsetComprInitsol(), and SCIPsetComprExitsol()
 *
 *  @note if you want to set all callbacks with a single method call, consider using SCIPincludeCompr() instead
 */
extern
SCIP_RETCODE SCIPincludeComprBasic(
   SCIP*                 scip,               /**< SCIP data structure */
   SCIP_COMPR**          compr,              /**< pointer to tree compression */
   const char*           name,               /**< name of tree compression */
   const char*           desc,               /**< description of tree compression */
   int                   priority,           /**< priority of the tree compression */
   int                   minnnodes,          /**< minimal number of nodes to call the compression */
   SCIP_DECL_COMPREXEC   ((*comprexec)),     /**< execution method of tree compression */
   SCIP_COMPRDATA*       comprdata           /**< tree compression data */
   );

/** sets copy method of tree compression */
extern
SCIP_RETCODE SCIPsetComprCopy(
   SCIP*                 scip,               /**< SCIP data structure */
   SCIP_COMPR*           compr,              /**< tree compression */
   SCIP_DECL_COMPRCOPY   ((*comprcopy))      /**< copy method of tree compression or NULL if you don't want to copy your plugin into sub-SCIPs */
   );

/** sets destructor method of tree compression */
extern
SCIP_RETCODE SCIPsetComprFree(
   SCIP*                 scip,               /**< SCIP data structure */
   SCIP_COMPR*           compr,              /**< tree compression */
   SCIP_DECL_COMPRFREE   ((*comprfree))      /**< destructor of tree compression */
   );

/** sets initialization method of tree compression */
extern
SCIP_RETCODE SCIPsetComprInit(
   SCIP*                 scip,               /**< SCIP data structure */
   SCIP_COMPR*           compr,              /**< tree compression */
   SCIP_DECL_COMPRINIT   ((*comprinit))      /**< initialize tree compression */
   );

/** sets deinitialization method of tree compression */
extern
SCIP_RETCODE SCIPsetComprExit(
   SCIP*                 scip,               /**< SCIP data structure */
   SCIP_COMPR*           compr,              /**< tree compression */
   SCIP_DECL_COMPREXIT   ((*comprexit))      /**< deinitialize tree compression */
   );

/** sets solving process initialization method of tree compression */
extern
SCIP_RETCODE SCIPsetComprInitsol(
   SCIP*                 scip,               /**< SCIP data structure */
   SCIP_COMPR*           compr,              /**< tree compression */
   SCIP_DECL_COMPRINITSOL ((*comprinitsol))  /**< solving process initialization method of tree compression */
   );

/** sets solving process deinitialization method of tree compression */
extern
SCIP_RETCODE SCIPsetComprExitsol(
   SCIP*                 scip,               /**< SCIP data structure */
   SCIP_COMPR*           compr,              /**< tree compression */
   SCIP_DECL_COMPREXITSOL ((*comprexitsol))  /**< solving process deinitialization method of tree compression */
   );

/** returns the tree compression of the given name, or NULL if not existing */
extern
SCIP_COMPR* SCIPfindCompr(
   SCIP*                 scip,               /**< SCIP data structure */
   const char*           name                /**< name of tree compression */
   );

/** returns the array of currently available tree compression */
extern
SCIP_COMPR** SCIPgetComprs(
   SCIP*                 scip                /**< SCIP data structure */
   );

/** returns the number of currently available tree compression */
extern
int SCIPgetNCompr(
   SCIP*                 scip                /**< SCIP data structure */
   );

/** set the priority of a tree compression method */
SCIP_RETCODE SCIPsetComprPriority(
   SCIP*                 scip,               /**< SCIP data structure */
   SCIP_COMPR*           compr,              /**< compression */
   int                   priority            /**< new priority of the tree compression */
   );

/* @} */

#ifdef __cplusplus
}
#endif

#endif