Implemented NtSignalAndWaitForSingleObject.

diff --git a/server/hook.c b/server/hook.c
index 293b20c..c228f98 100644
--- a/server/hook.c
+++ b/server/hook.c
@@ -77,6 +77,7 @@
     NULL,                         /* remove_queue */
     NULL,                         /* signaled */
     NULL,                         /* satisfied */
+    no_signal,                    /* signal */
     no_get_fd,                    /* get_fd */
     hook_table_destroy            /* destroy */
 };