src/include/surf/maxmin.h

   1 /*      $Id$     */
   2
   3 /* Copyright (c) 2004 Arnaud Legrand. All rights reserved.                  */
   4
   5 /* This program is free software; you can redistribute it and/or modify it
   6  * under the terms of the license (GNU LGPL) which comes with this package. */
   7
   8 #ifndef _SURF_MAXMIN_H
   9 #define _SURF_MAXMIN_H
  10
  11 #include "xbt/misc.h"
  12 typedef struct lmm_variable *lmm_variable_t;
  13 typedef struct lmm_constraint *lmm_constraint_t;
  14 typedef struct lmm_system *lmm_system_t;
  15
  16 lmm_system_t lmm_system_new(void);
  17 void lmm_system_free(lmm_system_t sys);
  18 void lmm_variable_disable(lmm_system_t sys, lmm_variable_t var);
  19
  20 lmm_constraint_t lmm_constraint_new(lmm_system_t sys, void *id,
  21                                     double bound_value);
  22 void lmm_constraint_free(lmm_system_t sys, lmm_constraint_t cnst);
  23
  24 lmm_variable_t lmm_variable_new(lmm_system_t sys, void *id,
  25                                 double weight_value,
  26                                 double bound, int number_of_constraints);
  27 void lmm_variable_free(lmm_system_t sys, lmm_variable_t var);
  28 double lmm_variable_getvalue(lmm_variable_t var);
  29
  30
  31 void lmm_expand(lmm_system_t sys, lmm_constraint_t cnst,
  32                 lmm_variable_t var, double value);
  33 void lmm_expand_add(lmm_system_t sys, lmm_constraint_t cnst,
  34                     lmm_variable_t var, double value);
  35
  36 lmm_constraint_t lmm_get_cnst_from_var(lmm_system_t sys,
  37                                        lmm_variable_t var, int num);
  38 int lmm_get_number_of_cnst_from_var(lmm_system_t sys, lmm_variable_t var);
  39 lmm_variable_t lmm_get_var_from_cnst(lmm_system_t sys,
  40                                      lmm_constraint_t cnst,
  41                                      lmm_variable_t * var);
  42
  43 lmm_constraint_t lmm_get_first_active_constraint(lmm_system_t sys);
  44 lmm_constraint_t lmm_get_next_active_constraint(lmm_system_t sys, lmm_constraint_t cnst);
  45
  46 void *lmm_constraint_id(lmm_constraint_t cnst);
  47 void *lmm_variable_id(lmm_variable_t var);
  48
  49 void lmm_update(lmm_system_t sys, lmm_constraint_t cnst,
  50                 lmm_variable_t var, double value);
  51 void lmm_update_variable_bound(lmm_system_t sys, lmm_variable_t var,
  52                                double bound);
  53 void lmm_update_variable_weight(lmm_system_t sys, lmm_variable_t var,
  54                                 double weight);
  55 double lmm_get_variable_weight(lmm_variable_t var);
  56
  57 void lmm_update_constraint_bound(lmm_system_t sys, lmm_constraint_t cnst,
  58                                  double bound);
  59
  60 int lmm_constraint_used(lmm_system_t sys, lmm_constraint_t cnst);
  61
  62 void lmm_solve(lmm_system_t sys);
  63 #endif                          /* _SURF_MAXMIN_H */