Merge branch 'master' of git.sangoma.com:smg_freeswitch

libs/freetdm/docs/io_modules.txt

@@ -0,0 +1,13 @@
+Last Updated: Jan 19, 2011
+
+== BACKGROUND ==
+
+The IO module provides an abstracted IO interface to FreeTDM. 
+
+== SHUTDOWN ==
+Upon global shutdown, for each channel FIO_CLOSE_FUNCTION will be called. 
+When FIO_CLOSE_FUNCTION is called, all waiters on this channel shall be signalled.
+If FIO_WAIT_FUNCTION is called on a function that has already been closed, this function shall return FTDM_TIMEOUT without blocking.
+FIO_CHANNEL_DESTROY will eventually be called, and IO module is responsible for clearing all internal states and free allocated memory upon channel destroy. 
+
+

libs/freetdm/src/ftmod/ftmod_sangoma_isdn/ftmod_sangoma_isdn.c

@@ -394,8 +394,7 @@ static void *ftdm_sangoma_isdn_dchan_run(ftdm_thread_t *me, void *obj)
 			default:
 				ftdm_log_chan_msg(dchan, FTDM_LOG_CRIT, "Unhandled IO event\n");
 		}
-	}
-	ftdm_channel_close(&dchan);
+	}	
 	return NULL;
 }