typedef long double xbt_heap_float_t;
#define XBT_HEAP_FLOAT_T "%Lg" /* for printing purposes */
-
/* pointer to a function freeing something (should be common to all .h : FIXME) */
typedef void (void_f_pvoid_t) (void *);
xbt_swag_t xbt_swag_new(size_t offset);
void xbt_swag_init(xbt_swag_t swag, size_t offset);
-void xbt_swag_insert(void *obj,xbt_swag_t swag);
+void xbt_swag_insert(void *obj, xbt_swag_t swag);
void *xbt_swag_extract(void *obj, xbt_swag_t swag);
-int xbt_swag_size(xbt_swag_t swag);
-int xbt_swag_belongs(void *obj,xbt_swag_t swag);
+int xbt_swag_size(xbt_swag_t swag);
+int xbt_swag_belongs(void *obj, xbt_swag_t swag);
static __inline__ void *xbt_swag_getFirst(xbt_swag_t swag)
{
- return(swag->head);
+ return (swag->head);
}
#define xbt_swag_getNext(obj,offset) (((xbt_swag_hookup_t)(((char *) (obj)) + (offset)))->prev)
#define xbt_swag_getPrev(obj,offset) (((xbt_swag_hookup_t)(((char *) (obj)) + (offset)))->next)
-#define xbt_swag_offset(var,field) ((char *)&( (var).field ) - (char *)&(var))
+#define xbt_swag_offset(var,field) ((char *)&( (var).field ) - (char *)&(var))
#define xbt_swag_foreach(obj,swag) \
for((obj)=xbt_swag_getFirst((swag)); \
/* This program is free software; you can redistribute it and/or modify it
under the terms of the license (GNU LGPL) which comes with this package. */
-typedef long double FLOAT;
+typedef long double xbt_maxmin_float_t;
+#define XBT_MAXMIN_FLOAT_T "%Lg" /* for printing purposes */
typedef struct lmm_variable *lmm_variable_t;
typedef struct lmm_constraint *lmm_constraint_t;
lmm_system_t lmm_system_new(void);
void lmm_system_free(lmm_system_t sys);
-lmm_constraint_t lmm_constraint_new(lmm_system_t sys, void *id,
- FLOAT bound_value);
+lmm_constraint_t lmm_constraint_new(lmm_system_t sys, void *id,
+ xbt_maxmin_float_t bound_value);
void lmm_constraint_free(lmm_system_t sys, lmm_constraint_t cnst);
-lmm_variable_t lmm_variable_new(lmm_system_t sys, void *id,
- FLOAT weight_value, FLOAT bound,
+lmm_variable_t lmm_variable_new(lmm_system_t sys, void *id,
+ xbt_maxmin_float_t weight_value,
+ xbt_maxmin_float_t bound,
int number_of_constraints);
void lmm_variable_free(lmm_system_t sys, lmm_variable_t var);
-FLOAT lmm_variable_getvalue(lmm_variable_t var);
+xbt_maxmin_float_t lmm_variable_getvalue(lmm_variable_t var);
void lmm_expand(lmm_system_t sys, lmm_constraint_t cnst,
- lmm_variable_t var, FLOAT value);
+ lmm_variable_t var, xbt_maxmin_float_t value);
void lmm_update(lmm_system_t sys, lmm_constraint_t cnst,
- lmm_variable_t var, FLOAT value);
-void lmm_update_variable_bound(lmm_variable_t var, FLOAT bound);
-void lmm_update_variable_weight(lmm_variable_t var, FLOAT weight);
-void lmm_update_constraint_bound(lmm_constraint_t cnst, FLOAT bound);
+ lmm_variable_t var, xbt_maxmin_float_t value);
+void lmm_update_variable_bound(lmm_variable_t var,
+ xbt_maxmin_float_t bound);
+void lmm_update_variable_weight(lmm_variable_t var,
+ xbt_maxmin_float_t weight);
+void lmm_update_constraint_bound(lmm_constraint_t cnst,
+ xbt_maxmin_float_t bound);
void lmm_solve(lmm_system_t sys);
}
lmm_constraint_t lmm_constraint_new(lmm_system_t sys, void *id,
- FLOAT bound_value)
+ xbt_maxmin_float_t bound_value)
{
lmm_constraint_t cnst = NULL;
s_lmm_element_t elem;
}
lmm_variable_t lmm_variable_new(lmm_system_t sys, void *id,
- FLOAT weight, FLOAT bound,
+ xbt_maxmin_float_t weight,
+ xbt_maxmin_float_t bound,
int number_of_constraints)
{
lmm_variable_t var = NULL;
var->value = -1;
insert_variable(sys, var);
- var->id=id;
+ var->id = id;
return var;
}
lmm_var_free(sys, var);
}
-FLOAT lmm_variable_getvalue(lmm_variable_t var)
+xbt_maxmin_float_t lmm_variable_getvalue(lmm_variable_t var)
{
- return(var->value);
+ return (var->value);
}
void lmm_expand(lmm_system_t sys, lmm_constraint_t cnst,
- lmm_variable_t var, FLOAT value)
+ lmm_variable_t var, xbt_maxmin_float_t value)
{
lmm_element_t elem = NULL;
static void saturated_constraints_update(lmm_system_t sys,
lmm_constraint_t cnst,
- FLOAT * min_usage)
+ xbt_maxmin_float_t * min_usage)
{
- lmm_constraint_t useless_cnst=NULL;
+ lmm_constraint_t useless_cnst = NULL;
- if(cnst->remaining<=0) return;
+ if (cnst->remaining <= 0)
+ return;
if ((*min_usage < 0) || (*min_usage > cnst->remaining / cnst->usage)) {
xbt_swag_t active_elem_list = &(cnst->active_element_set);
xbt_swag_t elem_list = NULL;
cnst_list = &(sys->saturated_constraint_set);
- while((cnst=xbt_swag_getFirst(cnst_list))) {
+ while ((cnst = xbt_swag_getFirst(cnst_list))) {
/* xbt_swag_foreach(cnst, cnst_list) { */
elem_list = &(cnst->active_element_set);
xbt_swag_foreach(elem, elem_list)
xbt_swag_insert(elem->variable, &(sys->saturated_variable_set));
- xbt_swag_extract(cnst,cnst_list);
+ xbt_swag_extract(cnst, cnst_list);
}
}
xbt_swag_t cnst_list = NULL;
xbt_swag_t var_list = NULL;
xbt_swag_t elem_list = NULL;
- FLOAT min_usage = -1;
+ xbt_maxmin_float_t min_usage = -1;
/* Init */
- var_list=&(sys->variable_set);
+ var_list = &(sys->variable_set);
xbt_swag_foreach(var, var_list) {
var->value = -1;
}
do {
/* Fix the variables that have to be */
- var_list=&(sys->saturated_variable_set);
+ var_list = &(sys->saturated_variable_set);
xbt_swag_foreach(var, var_list) {
/* First check if some of these variables have reach their upper
- bound and update min_usage accordingly. */
- if((var->bound>0) && (var->bound / var->weight < min_usage)) {
+ bound and update min_usage accordingly. */
+ if ((var->bound > 0) && (var->bound / var->weight < min_usage)) {
min_usage = var->bound / var->weight;
}
}
- while((var=xbt_swag_getFirst(var_list))) {
- int i ;
+ while ((var = xbt_swag_getFirst(var_list))) {
+ int i;
var->value = min_usage / var->weight;
-
+
/* Update usage */
for (i = 0; i < var->cnsts_number; i++) {
cnst->usage -= elem->value / var->weight;
remove_active_elem_in_constraint(elem);
}
- xbt_swag_extract(var,var_list);
+ xbt_swag_extract(var, var_list);
}
-
+
/* Find out which variables reach the maximum */
cnst_list = &(sys->active_constraint_set);
min_usage = -1;
/* Not a O(1) function */
void lmm_update(lmm_system_t sys, lmm_constraint_t cnst,
- lmm_variable_t var, FLOAT value)
+ lmm_variable_t var, xbt_maxmin_float_t value)
{
int i;
lmm_element_t elem = NULL;
for (i = 0; i < var->cnsts_number; i++)
- if(var->cnsts[i].constraint==cnst) {
- elem->value =value;
+ if (var->cnsts[i].constraint == cnst) {
+ elem->value = value;
return;
}
}
-void lmm_update_variable_bound(lmm_variable_t var, FLOAT bound)
+void lmm_update_variable_bound(lmm_variable_t var,
+ xbt_maxmin_float_t bound)
{
- var->bound=bound;
+ var->bound = bound;
}
-void lmm_update_variable_weight(lmm_variable_t var, FLOAT weight)
+void lmm_update_variable_weight(lmm_variable_t var,
+ xbt_maxmin_float_t weight)
{
- var->weight=weight;
+ var->weight = weight;
}
void lmm_update_constraint_bound(lmm_constraint_t cnst,
- FLOAT bound)
+ xbt_maxmin_float_t bound)
{
- cnst->bound=bound;
+ cnst->bound = bound;
}
lmm_constraint_t constraint;
lmm_variable_t variable;
- FLOAT value;
+ xbt_maxmin_float_t value;
} s_lmm_element_t, *lmm_element_t;
#define insert_elem_in_constraint(elem) xbt_swag_insert(elem,&(elem->constraint->element_set))
#define insert_active_elem_in_constraint(elem) xbt_swag_insert(elem,&(elem->constraint->active_element_set))
s_xbt_swag_t element_set; /* a list of lmm_mat_element_t */
s_xbt_swag_t active_element_set; /* a list of lmm_mat_element_t */
- FLOAT bound;
- FLOAT remaining;
- FLOAT usage;
+ xbt_maxmin_float_t bound;
+ xbt_maxmin_float_t remaining;
+ xbt_maxmin_float_t usage;
char *id;
} s_lmm_constraint_t;
s_lmm_element_t *cnsts;
int cnsts_size;
int cnsts_number;
- FLOAT weight;
- FLOAT bound;
- FLOAT value;
+ xbt_maxmin_float_t weight;
+ xbt_maxmin_float_t bound;
+ xbt_maxmin_float_t value;
char *id;
} s_lmm_variable_t;
s_xbt_swag_t active_constraint_set; /* a list of lmm_constraint_t */
s_xbt_swag_t saturated_variable_set; /* a list of lmm_variable_t */
- s_xbt_swag_t saturated_constraint_set;/* a list of lmm_constraint_t_t */
+ s_xbt_swag_t saturated_constraint_set; /* a list of lmm_constraint_t_t */
} s_lmm_system_t;
#define extract_variable(sys) xbt_swag_extract(xbt_swag_getFirst(&(sys->variable_set)),&(sys->variable_set))
xbt_heap_t H = xbt_new0(struct xbt_heap, 1);
H->size = init_size;
H->count = 0;
- H->items =
- (xbt_heapItem_t) xbt_new0(struct xbt_heapItem, init_size);
+ H->items = (xbt_heapItem_t) xbt_new0(struct xbt_heapItem, init_size);
H->free = free_func;
return H;
}
xbt_swag_t xbt_swag_new(size_t offset)
{
- xbt_swag_t swag = xbt_new0(s_xbt_swag_t,1);
+ xbt_swag_t swag = xbt_new0(s_xbt_swag_t, 1);
swag->offset = offset;
void xbt_swag_insert(void *obj, xbt_swag_t swag)
{
- if(xbt_swag_belongs(obj, swag)) return;
-
+ if (xbt_swag_belongs(obj, swag))
+ return;
+
(swag->count)++;
if (swag->head == NULL) {
swag->head = obj;
{
size_t offset = swag->offset;
- if (!obj) return NULL;
+ if (!obj)
+ return NULL;
if (swag->head == swag->tail) { /* special case */
- if (swag->head != obj) /* Trying to remove an object that was not in this swag */
+ if (swag->head != obj) /* Trying to remove an object that was not in this swag */
return NULL;
swag->head = NULL;
swag->tail = NULL;
int xbt_swag_belongs(void *obj, xbt_swag_t swag)
{
- return ((NEXT(obj, swag->offset)) || (PREV(obj, swag->offset)) || (swag->head==obj));
+ return ((NEXT(obj, swag->offset)) || (PREV(obj, swag->offset))
+ || (swag->head == obj));
}