Fix bug in delayed connection handling, 2nd try

src/common/memcached.c

@@ -295,10 +295,11 @@ static void memcached_connect(liMemcachedCon *con) {
 			case EINPROGRESS:
 			case EALREADY:
 			case EINTR:
-			case EISCONN:
 				memcached_start_io(con);
 				li_ev_io_add_events(con->loop, &con->con_watcher, EV_READ | EV_WRITE);
 				break;
+			case EISCONN:
+				break;
 			default:
 				g_clear_error(&con->err);
 				g_set_error(&con->err, LI_MEMCACHED_ERROR, LI_MEMCACHED_CONNECTION, "Couldn't connect to '%s': %s",

src/modules/mod_fastcgi.c

@@ -683,13 +683,14 @@ static liHandlerResult fastcgi_statemachine(liVRequest *vr, fastcgi_connection *
 			case EINPROGRESS:
 			case EALREADY:
 			case EINTR:
-			case EISCONN:
 				fcon->state = FS_CONNECTING;
 				return LI_HANDLER_GO_ON;
 			case EAGAIN: /* backend overloaded */
 				fastcgi_close(vr, p);
 				li_vrequest_backend_overloaded(vr);
 				return LI_HANDLER_GO_ON;
+			case EISCONN:
+				break;
 			default:
 				if (errno != g_atomic_int_get(&fcon->ctx->last_errno)) {
 					g_atomic_int_set(&fcon->ctx->last_errno, errno);

src/modules/mod_proxy.c

@@ -330,13 +330,14 @@ static liHandlerResult proxy_statemachine(liVRequest *vr, proxy_connection *pcon
 			case EINPROGRESS:
 			case EALREADY:
 			case EINTR:
-			case EISCONN:
 				pcon->state = SS_CONNECTING;
 				return LI_HANDLER_GO_ON;
 			case EAGAIN: /* backend overloaded */
 				proxy_close(vr, p);
 				li_vrequest_backend_overloaded(vr);
 				return LI_HANDLER_GO_ON;
+			case EISCONN:
+				break;
 			default:
 				VR_ERROR(vr, "Couldn't connect to '%s': %s",
 					li_sockaddr_to_string(pcon->ctx->socket, vr->wrk->tmp_str, TRUE)->str,

src/modules/mod_scgi.c

@@ -436,13 +436,14 @@ static liHandlerResult scgi_statemachine(liVRequest *vr, scgi_connection *scon)
 			case EINPROGRESS:
 			case EALREADY:
 			case EINTR:
-			case EISCONN:
 				scon->state = SS_CONNECTING;
 				return LI_HANDLER_GO_ON;
 			case EAGAIN: /* backend overloaded */
 				scgi_close(vr, p);
 				li_vrequest_backend_overloaded(vr);
 				return LI_HANDLER_GO_ON;
+			case EISCONN:
+				break;
 			default:
 				VR_ERROR(vr, "Couldn't connect to '%s': %s",
 					li_sockaddr_to_string(scon->ctx->socket, vr->wrk->tmp_str, TRUE)->str,