usr/src/games/sail/machdep.h

/*
 * Copyright (c) 1983 Regents of the University of California.
 * All rights reserved.
 *
 * %sccs.include.redist.c%
 *
 *      @(#)machdep.h   5.5 (Berkeley) %G%
 */

#define TIMEOUT 300                             /* Sync() timeout in seconds */

/* for 4.2bsd machines */
#define blockalarm()    ((void) sigblock(1 << SIGALRM-1))
#define unblockalarm()  ((void) sigsetmask(sigblock(0) & ~(1 << SIGALRM-1)))

/* for 2.9bsd machines (onyx)
typedef int void;
#define blockalarm()    ((void) sighold(SIGALRM))
#define unblockalarm()  ((void) sigrelse(SIGALRM))
*/