CAC: unable to create virtual circuit b/c "Too many open files"

["Bertrand H.J. Biritz" <bbiritz@ucla.edu>]

Dear Tech-talk,

I wrote a monitoring program using some of the example code from EPICS- 
BASE and the lecture videos. It connects to an IOC every 5 minutes for  
12 PV's and write their values to a text file.

The only problem is that it eventually fails with the following error  
message:

epicsSocketEnablePortUseForDatagramFanout: unable to set SO_REUSEADDR?
epicsSocketDestroy: failed to close a socket because "Bad file  
descriptor"
CAC: unable to create virtual circuit because "Too many open files"

the last line is repeated multiple times.

Now the relevant code snippet is:

while(1)
{
...
...
...
      /*
       * Here is where the CA calls happen
       */


      /* Initialize */

 status=ca_context_create(ca_disable_preemptive_callback);
      if(status != ECA_NORMAL)
	{
	  printf("ca_context_create failed:\n%s\n",ca_message(status));
	  exit(1);
	}

      /* Search */

      for(i = 0; i < 12; i++)
	{
	   
status 
= 
ca_create_channel 
(pv[i],connectionChangedCB,NULL,CA_PRIORITY_DEFAULT,&pCh[i]);
	  if(status != ECA_NORMAL)
	    {
	      printf("ca_create_channel for pv%d failed:\n%s\n", i,  
ca_message(status));
	      exit(1);
	    }
	}

      /* Wait */
      startTime=curTime;
      ca_pend_event(timeout);

      /* Clear the channel */

      for(i = 0; i < 12; i++)
	{
	  status=ca_clear_channel(pCh[i]);
	  if(status != ECA_NORMAL)
	    {
	      printf("ca_clear_channel for pv%d failed:\n%s\n", i,  
ca_message(status));
	    }
	}

      /* Exit */

      ca_context_destroy();
...
...
...
}

I thought I had included everything I need, but apparently I missed  
something.

Any help would be greatly appreciated,
Bertrand

Happy post July 4th!