use libqb async API for connect

lib/common/ipc_client.c

@@ -1407,13 +1407,30 @@ pcmk__ipc_is_authentic_process_active(const char *name, uid_t refuid,
     int32_t qb_rc;
     pid_t found_pid = 0; uid_t found_uid = 0; gid_t found_gid = 0;
     qb_ipcc_connection_t *c;
+    struct pollfd pollfd = { 0, };
+    int poll_rc;
 
-    c = qb_ipcc_connect(name, 0);
+    // c = qb_ipcc_connect(name, 0);
+    c = qb_ipcc_connect_async(name, 0,
+                              &(pollfd.fd));
     if (c == NULL) {
         crm_info("Could not connect to %s IPC: %s", name, strerror(errno));
         rc = pcmk_rc_ipc_unresponsive;
         goto bail;
     }
+    pollfd.events = POLLIN;
+    do {
+        poll_rc = poll(&pollfd, 1, 2000);
+    } while ((poll_rc == -1) && (errno == EINTR));
+    if ((poll_rc <= 0) || (qb_ipcc_connect_continue(c) != 0)) {
+        crm_info("Could not connect to %s IPC: %s", name,
+                 (poll_rc == 0)?"timeout":strerror(errno));
+        rc = pcmk_rc_ipc_unresponsive;
+        if (poll_rc > 0) {
+            c = NULL; // qb_ipcc_connect_continue cleaned up for us
+        }
+        goto bail;
+    }
 
     qb_rc = qb_ipcc_fd_get(c, &fd);
     if (qb_rc != 0) {