extern bool mainloop_check_signals();
extern void mainloop_trap_signals(const sigset_t *set);
+extern void mainloop_block_signals(sigset_t *oldmask);
+extern bool mainloop_unhandled_signals();
+extern bool libmainloop_get_timeout(struct timeval *tv);
extern WHook *mainloop_sigchld_hook;
extern WHook *mainloop_sigusr2_hook;