1    	/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
2    	/*                                                                           */
3    	/*                  This file is part of the program and library             */
4    	/*         SCIP --- Solving Constraint Integer Programs                      */
5    	/*                                                                           */
6    	/*  Copyright (c) 2002-2023 Zuse Institute Berlin (ZIB)                      */
7    	/*                                                                           */
8    	/*  Licensed under the Apache License, Version 2.0 (the "License");          */
9    	/*  you may not use this file except in compliance with the License.         */
10   	/*  You may obtain a copy of the License at                                  */
11   	/*                                                                           */
12   	/*      http://www.apache.org/licenses/LICENSE-2.0                           */
13   	/*                                                                           */
14   	/*  Unless required by applicable law or agreed to in writing, software      */
15   	/*  distributed under the License is distributed on an "AS IS" BASIS,        */
16   	/*  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. */
17   	/*  See the License for the specific language governing permissions and      */
18   	/*  limitations under the License.                                           */
19   	/*                                                                           */
20   	/*  You should have received a copy of the Apache-2.0 license                */
21   	/*  along with SCIP; see the file LICENSE. If not visit scipopt.org.         */
22   	/*                                                                           */
23   	/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
24   	
25   	/**@file   struct_compr.h
26   	 * @ingroup INTERNALAPI
27   	 * @brief  datastructures for tree compression techniques
28   	 * @author Jakob Witzig
29   	 */
30   	
31   	/*---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8----+----9----+----0----+----1----+----2*/
32   	
33   	#ifndef __SCIP_STRUCT_COMPR_H__
34   	#define __SCIP_STRUCT_COMPR_H__
35   	
36   	
37   	#include "scip/def.h"
38   	#include "scip/type_clock.h"
39   	#include "scip/type_compr.h"
40   	
41   	#ifdef __cplusplus
42   	extern "C" {
43   	#endif
44   	
45   	/** tree compression data */
46   	struct SCIP_Compr
47   	{
48   	   SCIP_Longint          ncalls;             /**< number of times, this compression was called */
49   	   SCIP_Longint          nfound;              /**< number of compressions found so far by this method */
50   	   SCIP_Real             rate;               /**< rate of the last compression */
51   	   SCIP_Real             loi;                /**< loss of information of the last compression */
52   	   char*                 name;               /**< name of tree compression */
53   	   char*                 desc;               /**< description of tree compression */
54   	   SCIP_DECL_COMPRCOPY   ((*comprcopy));     /**< copy method of tree compression or NULL if you don't want to copy your plugin into sub-SCIPs */
55   	   SCIP_DECL_COMPRFREE   ((*comprfree));     /**< destructor of tree compression */
56   	   SCIP_DECL_COMPRINIT   ((*comprinit));     /**< initialize tree compression */
57   	   SCIP_DECL_COMPREXIT   ((*comprexit));     /**< deinitialize tree compression */
58   	   SCIP_DECL_COMPRINITSOL ((*comprinitsol)); /**< solving process initialization method of tree compression */
59   	   SCIP_DECL_COMPREXITSOL ((*comprexitsol)); /**< solving process deinitialization method of tree compression */
60   	   SCIP_DECL_COMPREXEC   ((*comprexec));     /**< execution method of tree compression */
61   	   SCIP_COMPRDATA*       comprdata;          /**< tree compression local data */
62   	   SCIP_CLOCK*           setuptime;          /**< time spend for setting up this compression for the next stages */
63   	   SCIP_CLOCK*           comprclock;         /**< compression execution time */
64   	   int                   priority;           /**< priority of the tree compression */
65   	   int                   minnnodes;          /**< minimal number of nodes for calling compression, -1 if no threshold exists */
66   	   int                   nnodes;             /**< number of nodes of the last compression */
67   	   SCIP_Bool             initialized;        /**< is tree compression initialized? */
68   	};
69   	
70   	#ifdef __cplusplus
71   	}
72   	#endif
73   	
74   	#endif
75