1#if !defined _ntp_iosignaled_h 2#define _ntp_iosignaled_h 3 4#include "ntp_refclock.h" 5 6#if defined(HAVE_SIGNALED_IO) 7extern void block_sigio (void); 8extern void unblock_sigio (void); 9extern int init_clock_sig (struct refclockio *); 10extern void init_socket_sig (int); 11extern void set_signal (void); 12RETSIGTYPE sigio_handler (int); 13 14# define BLOCKIO() block_sigio() 15# define UNBLOCKIO() unblock_sigio() 16 17#else 18 19# define BLOCKIO() 20# define UNBLOCKIO() 21#endif /* HAVE_SIGNALED_IO */ 22 23#endif 24