More IGMP logic

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@2781 42af7a65-404d-4744-a932-0658087f49c3

1 files changed, 14 insertions, 0 deletions

diff --git a/nuttx/net/uip/uip_igmpgroup.c b/nuttx/net/uip/uip_igmpgroup.c
index f51b8d542..62d3a7a5d 100755
--- a/nuttx/net/uip/uip_igmpgroup.c
+++ b/nuttx/net/uip/uip_igmpgroup.c
@@ -191,6 +191,7 @@ FAR struct igmp_group_s *uip_grpalloc(FAR struct uip_driver_s *dev, FAR uip_ipad
       /* Initialize the non-zero elements of the group structure */

 

       uip_ipaddr_copy(group->grpaddr, addr);

+      sem_init(&group->sem, 0, 0);

 

       /* Interrupts must be disabled in order to modify the group list */

 

@@ -277,6 +278,15 @@ void uip_grpfree(FAR struct uip_driver_s *dev, FAR struct igmp_group_s *group)
 

   irqstate_t flags = irqsave();

   DEBUGASSERT(sq_rem((FAR sq_entry_t*)group, &dev->grplist) != NULL);

+  

+  /* Destroy the wait semapore */

+

+  (void)sem_destroy(&group->sem);

+  

+  /* Then release the group structure resources.  Check first if this is one

+   * of the pre-allocated group structures that we will retain in a free list.

+   */

+

   if (IS_PREALLOCATED(group->flags))

     {

       sq_addlast((FAR sq_entry_t*)group, &g_freelist);

@@ -284,6 +294,10 @@ void uip_grpfree(FAR struct uip_driver_s *dev, FAR struct igmp_group_s *group)
     }

   else

     {

+      /* No.. deallocate the group structure.  Use sched_free() just in case

+       * this function is executing within an interrupt handler.

+       */

+

       irqrestore(flags);

       sched_free(group);

     }