+#include "surf/datatypes.h"
+
+#define MAXMIN_PRECISION 1e-9
+static XBT_INLINE void double_update(double *variable, double value)
+{
+ *variable -= value;
+ if (*variable < MAXMIN_PRECISION)
+ *variable = 0.0;
+}
+
+static XBT_INLINE int double_positive(double value)
+{
+ return (value > MAXMIN_PRECISION);
+}
+
+static XBT_INLINE int double_equals(double value1, double value2)
+{
+ return (fabs(value1 - value2) < MAXMIN_PRECISION);
+}
+
+XBT_PUBLIC(lmm_system_t) lmm_system_new(void);
+XBT_PUBLIC(void) lmm_system_free(lmm_system_t sys);
+ void lmm_variable_disable(lmm_system_t sys, lmm_variable_t var);
+
+XBT_PUBLIC(lmm_constraint_t) lmm_constraint_new(lmm_system_t sys, void *id,
+ double bound_value);
+ void lmm_constraint_shared(lmm_constraint_t cnst);
+ int lmm_constraint_is_shared(lmm_constraint_t cnst);
+
+ void lmm_constraint_free(lmm_system_t sys, lmm_constraint_t cnst);
+
+XBT_PUBLIC(lmm_variable_t) lmm_variable_new(lmm_system_t sys, void *id,
+ double weight_value,
+ double bound,
+ int number_of_constraints);
+ void lmm_variable_free(lmm_system_t sys, lmm_variable_t var);
+XBT_PUBLIC(double) lmm_variable_getvalue(lmm_variable_t var);
+XBT_PUBLIC(double) lmm_variable_getbound(lmm_variable_t var);
+
+XBT_PUBLIC(void) lmm_expand(lmm_system_t sys, lmm_constraint_t cnst,
+ lmm_variable_t var, double value);
+ void lmm_expand_add(lmm_system_t sys, lmm_constraint_t cnst,
+ lmm_variable_t var, double value);
+ void lmm_elem_set_value(lmm_system_t sys, lmm_constraint_t cnst,
+ lmm_variable_t var, double value);
+
+ lmm_constraint_t lmm_get_cnst_from_var(lmm_system_t sys,
+ lmm_variable_t var, int num);
+ int lmm_get_number_of_cnst_from_var(lmm_system_t sys,
+ lmm_variable_t var);
+ lmm_variable_t lmm_get_var_from_cnst(lmm_system_t sys,
+ lmm_constraint_t cnst,
+ lmm_element_t * elem);
+
+ lmm_constraint_t lmm_get_first_active_constraint(lmm_system_t sys);
+ lmm_constraint_t lmm_get_next_active_constraint(lmm_system_t sys,
+ lmm_constraint_t cnst);
+
+ XBT_PUBLIC(int) lmm_is_variable_limited_by_latency(lmm_variable_t var);
+
+ void *lmm_constraint_id(lmm_constraint_t cnst);
+ void *lmm_variable_id(lmm_variable_t var);
+
+ void lmm_update(lmm_system_t sys, lmm_constraint_t cnst,
+ lmm_variable_t var, double value);
+ void lmm_update_variable_bound(lmm_system_t sys, lmm_variable_t var,
+ double bound);
+
+
+XBT_PUBLIC(void) lmm_update_variable_weight(lmm_system_t sys,
+ lmm_variable_t var,
+ double weight);
+ double lmm_get_variable_weight(lmm_variable_t var);
+
+XBT_PUBLIC(void) lmm_update_constraint_bound(lmm_system_t sys,
+ lmm_constraint_t cnst,
+ double bound);