Issue with Async module - sr-users

20 Feb 2014


      Hi Daniel,
I am using async module to continue the transaction in
asynchronously. But I am observing a leak in shared memory. Then i checked
the code, we are not freeing the async_item_t  after calling t_continue.
Same this has checked with MEMDBG=1.
Original code:
while(1) {
         lock_get(&_async_list_head->ring[slot].lock);
         ai = _async_list_head->ring[slot].lstart;
         if(ai!=NULL)
                 _async_list_head->ring[slot].lstart = ai->next;
         lock_release(&_async_list_head->ring[slot].lock);
if(ai==NULL)
                 break;
         if(ai->act!=NULL)
                 tmb.t_continue(ai->tindex, ai->tlabel, ai->act);
 }
Changed code:
while(1) {
         lock_get(&_async_list_head->ring[slot].lock);
         ai = _async_list_head->ring[slot].lstart;
         if(ai!=NULL)
                 _async_list_head->ring[slot].lstart = ai->next;
         lock_release(&_async_list_head->ring[slot].lock);
if(ai==NULL)
                 break;
         if(ai->act!=NULL)
    	{
                 tmb.t_continue(ai->tindex, ai->tlabel, ai->act);
    		shm_free(ai); /* Added by surendra */
    	}
 }
Please correct this if I am wrong.
Regards
@surendra