fixed some memory leak issues

lib/hio.c

@@ -173,6 +173,15 @@ void hio_fini (hio_t* hio)
 		}
 	}
 
+	/* clean up unfired cwq entries - calling fire_cwq_handlers() might not be good here. */
+	while (!HIO_CWQ_IS_EMPTY(&hio->cwq))
+	{
+		hio_cwq_t* cwq;
+		cwq = HIO_CWQ_HEAD(&hio->cwq);
+		HIO_CWQ_UNLINK (cwq);
+		hio_freemem (hio, cwq);
+	}
+
 	/* kill services before killing devices */
 	while (!HIO_SVCL_IS_EMPTY(&hio->actsvc))
 	{

lib/http-cgi.c

@@ -865,6 +865,10 @@ static void unbind_task_from_peer (cgi_t* cgi, int rcdown)
 
 	if (cgi->peer)
 	{
+		cgi_peer_xtn_t* peer_xtn;
+		peer_xtn = hio_dev_pro_getxtn(cgi->peer);
+		peer_xtn->cgi = HIO_NULL;
+
 		hio_dev_pro_kill (cgi->peer);
 		cgi->peer = HIO_NULL;
 		n++;

lib/http-fcgi.c

@@ -697,7 +697,7 @@ static void unbind_task_from_peer (fcgi_t* fcgi, int rcdown)
 
 	if (fcgi->peer)
 	{
- 		/* hio-svc_fcgic_untie() is not a delayed operation unlike hio_dev_sck_halt(). 
+		/* hio_svc_fcgic_untie() is not a delayed operation unlike hio_dev_sck_halt().
 		 * TODO: check if this is a buggy idea */
 		hio_svc_fcgic_untie (fcgi->peer);
 		fcgi->peer = HIO_NULL;

lib/http-prxy.c

@@ -862,6 +862,10 @@ static void unbind_task_from_peer (prxy_t* prxy, int rcdown)
 
 	if (prxy->peer)
 	{
+		prxy_peer_xtn_t* peer_xtn;
+		peer_xtn = hio_dev_pro_getxtn(prxy->peer);
+		peer_xtn->prxy = HIO_NULL;
+
 		hio_dev_pro_kill (prxy->peer);
 		prxy->peer = HIO_NULL;
 		n++;