stun_sock.c patch to fix callback deadlock

deadlock.patch

Index: pjnath/src/pjnath/stun_sock.c
===================================================================
--- pjnath/src/pjnath/stun_sock.c       (revision 424)
+++ pjnath/src/pjnath/stun_sock.c       (working copy)
@@ -317,7 +317,10 @@
        pj_activesock_cfg_default(&activesock_cfg);
        activesock_cfg.grp_lock = stun_sock->grp_lock;
        activesock_cfg.async_cnt = cfg->async_cnt;
-       activesock_cfg.concurrency = 0;
+       // this was set to 0 and whole_data was true, causing it to disallow concurrency.  This change was made in bugfix #460.
+       //activesock_cfg.concurrency = 0;
+       activesock_cfg.whole_data = PJ_FALSE;
+       activesock_cfg.concurrency = PJ_TRUE;
 
        /* Create the active socket */
        pj_bzero(&activesock_cb, sizeof(activesock_cb));
@@ -954,9 +957,9 @@
 
 process_app_data:
     if (stun_sock->cb.on_rx_data) {
+       status = pj_grp_lock_release(stun_sock->grp_lock);
        (*stun_sock->cb.on_rx_data)(stun_sock, data, (unsigned)size,
                                    src_addr, addr_len);
-       status = pj_grp_lock_release(stun_sock->grp_lock);
        return status!=PJ_EGONE ? PJ_TRUE : PJ_FALSE;
     }