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Replaced ROOT_RANK with a macro that allows for other min_hoprankinc parameters than the default. Also made some minor style improvements.

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nvt 2011-02-20 20:15:40 +01:00
parent 263f7e6ebd
commit 01b7a4f7f2
3 changed files with 16 additions and 24 deletions
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19
core/net/rpl/rpl-of-etx.c
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@ -87,8 +87,6 @@ rpl_of_t rpl_of_etx = {
typedef uint16_t rpl_etx_t;
#define MAX_ETX 65535
static rpl_etx_t min_path_cost = MAX_ETX;
static uint16_t
calculate_etx(rpl_parent_t *p)
{
@ -98,18 +96,11 @@ calculate_etx(rpl_parent_t *p)
static void
reset(rpl_dag_t *dag)
{
min_path_cost = MAX_ETX;
}
static void
parent_state_callback(rpl_parent_t *parent, int known, int etx)
{
if(!known) {
if(RPL_PARENT_COUNT(parent->dag) == 1) {
/* Our last parent has disappeared, set the path ETX to INFINITE_RANK. */
min_path_cost = INFINITE_RANK;
}
}
}
static rpl_rank_t
@ -156,7 +147,7 @@ best_parent(rpl_parent_t *p1, rpl_parent_t *p2)
dag = p1->dag; /* Both parents must be in the same DAG. */
min_diff = RPL_DAG_MC_ETX_DIVISOR /
PARENT_SWITCH_THRESHOLD_DIV;
PARENT_SWITCH_THRESHOLD_DIV;
p1_etx = calculate_etx(p1);
p2_etx = calculate_etx(p2);
@ -171,11 +162,7 @@ best_parent(rpl_parent_t *p1, rpl_parent_t *p2)
return dag->preferred_parent;
}
if(p1_etx < p2_etx) {
return p1;
}
return p2;
return p1_etx < p2_etx ? p1 : p2;
}
static void
@ -186,7 +173,7 @@ update_metric_container(rpl_dag_t *dag)
dag->mc.aggr = RPL_DAG_MC_AGGR_ADDITIVE;
dag->mc.prec = 0;
dag->mc.length = sizeof(dag->mc.etx.etx);
if(dag->rank == ROOT_RANK) {
if(dag->rank == ROOT_RANK(dag)) {
dag->mc.etx.etx = 0;
} else {
dag->mc.etx.etx = calculate_etx(dag->preferred_parent);