src/include/surf/maxmin.h

   1 /* Authors: Arnaud Legrand                                                  */
   2
   3 /* This program is free software; you can redistribute it and/or modify it
   4    under the terms of the license (GNU LGPL) which comes with this package. */
   5
   6 #ifndef _SURF_MAXMIN_H
   7 #define _SURF_MAXMIN_H
   8
   9 typedef long double xbt_maxmin_float_t;
  10 #define XBT_MAXMIN_FLOAT_T "%Lg"        /* for printing purposes */
  11
  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                                     xbt_maxmin_float_t 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                                 xbt_maxmin_float_t weight_value,
  26                                 xbt_maxmin_float_t bound,
  27                                 int number_of_constraints);
  28 void lmm_variable_free(lmm_system_t sys, lmm_variable_t var);
  29 xbt_maxmin_float_t lmm_variable_getvalue(lmm_variable_t var);
  30
  31
  32 void lmm_expand(lmm_system_t sys, lmm_constraint_t cnst,
  33                 lmm_variable_t var, xbt_maxmin_float_t value);
  34
  35 lmm_constraint_t lmm_get_cnst_from_var(lmm_system_t sys, lmm_variable_t var, int num);
  36 int lmm_get_number_of_cnst_from_var(lmm_system_t sys, lmm_variable_t var);
  37
  38 void *lmm_constraint_id(lmm_constraint_t cnst);
  39 void *lmm_variable_id(lmm_variable_t var);
  40
  41 void lmm_update(lmm_system_t sys, lmm_constraint_t cnst,
  42                 lmm_variable_t var, xbt_maxmin_float_t value);
  43 void lmm_update_variable_bound(lmm_variable_t var,
  44                                xbt_maxmin_float_t bound);
  45 void lmm_update_variable_weight(lmm_variable_t var,
  46                                 xbt_maxmin_float_t weight);
  47 void lmm_update_constraint_bound(lmm_constraint_t cnst,
  48                                  xbt_maxmin_float_t bound);
  49
  50 int lmm_constraint_used(lmm_system_t sys, lmm_constraint_t cnst);
  51
  52 void lmm_solve(lmm_system_t sys);
  53 #endif                          /* _SURF_MAXMIN_H */