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Check correctly if a DAG already exists in the same instance.

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This commit is contained in:
nvt-se 2010-06-08 21:37:22 +00:00
parent 53d637a2bc
commit b1521e4950
1 changed files with 6 additions and 5 deletions
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11
core/net/rpl/rpl-dag.c
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@ -32,7 +32,7 @@
*
* This file is part of the Contiki operating system.
*
* $Id: rpl-dag.c,v 1.24 2010/06/08 16:21:54 nvt-se Exp $
* $Id: rpl-dag.c,v 1.25 2010/06/08 21:37:22 nvt-se Exp $
*/
/**
* \file
@ -145,14 +145,14 @@ rpl_set_root(uip_ipaddr_t *dag_id)
int version;
version = -1;
dag = rpl_get_dag(RPL_DEFAULT_OCP);
dag = rpl_get_dag(RPL_DEFAULT_INSTANCE);
if(dag != NULL) {
PRINTF("RPL: Dropping a joined DAG when setting this node as root");
version = dag->version;
rpl_free_dag(dag);
}
dag = rpl_alloc_dag();
dag = rpl_alloc_dag(RPL_DEFAULT_INSTANCE);
if(dag == NULL) {
PRINTF("RPL: Failed to allocate a DAG\n");
return NULL;
@ -225,7 +225,7 @@ rpl_set_default_route(rpl_dag_t *dag, uip_ipaddr_t *from)
}
/************************************************************************/
rpl_dag_t *
rpl_alloc_dag(void)
rpl_alloc_dag(uint8_t instance_id)
{
int i;
@ -234,6 +234,7 @@ rpl_alloc_dag(void)
memset(&dag_table[i], 0, sizeof(dag_table[0]));
dag_table[i].parents = &dag_table[i].parent_list;
list_init(dag_table[i].parents);
dag_table[i].instance_id = instance_id;
dag_table[i].def_route = NULL;
return &dag_table[i];
}
@ -386,7 +387,7 @@ join_dag(uip_ipaddr_t *from, rpl_dio_t *dio)
rpl_parent_t *p;
rpl_of_t *of;
dag = rpl_alloc_dag();
dag = rpl_alloc_dag(dio->instance_id);
if(dag == NULL) {
PRINTF("RPL: Failed to allocate a DAG object!\n");
return;