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#ifndef __timespec_defined

#define __timespec_defined

/* Time Value Specification Structures, P1003.1b-1993, p. 261 */

struct timespec {

  time_t  tv_sec;   /* Seconds */

  long    tv_nsec;  /* Nanoseconds */

};

#endif

struct itimerspec {

  struct timespec  it_interval;  /* Timer period */

  struct timespec  it_value;     /* Timer expiration */

};

typedef unsigned short nlink_t;

/* We don't define fd_set and friends if we are compiling POSIX

   source, or if we have included (or may include as indicated

   by __USE_W32_SOCKETS) the W32api winsock[2].h header which

   defines Windows versions of them.   Note that a program which

   includes the W32api winsock[2].h header must know what it is doing;

   it must not call the cygwin32 select function.

*/

# if !(defined (_POSIX_SOURCE) || defined (_WINSOCK_H) || defined (_WINSOCKAPI_) || defined (__USE_W32_SOCKETS)) 

#  define _SYS_TYPES_FD_SET

#  define	NBBY	8		/* number of bits in a byte */

/*

 * Select uses bit masks of file descriptors in longs.

 * These macros manipulate such bit fields (the filesystem macros use chars).

 * FD_SETSIZE may be defined by the user, but the default here

 * should be >= NOFILE (param.h).

 */

#  ifndef	FD_SETSIZE

#	define	FD_SETSIZE	64

#  endif

typedef	long	fd_mask;

#  define	NFDBITS	(sizeof (fd_mask) * NBBY)	/* bits per mask */

#  ifndef	howmany

#	define	howmany(x,y)	(((x)+((y)-1))/(y))

#  endif

/* We use a macro for fd_set so that including Sockets.h afterwards

   can work.  */

typedef	struct _types_fd_set {

	fd_mask	fds_bits[howmany(FD_SETSIZE, NFDBITS)];

} _types_fd_set;

#define fd_set _types_fd_set

#  define	FD_SET(n, p)	((p)->fds_bits[(n)/NFDBITS] |= (1L << ((n) % NFDBITS)))

#  define	FD_CLR(n, p)	((p)->fds_bits[(n)/NFDBITS] &= ~(1L << ((n) % NFDBITS)))

#  define	FD_ISSET(n, p)	((p)->fds_bits[(n)/NFDBITS] & (1L << ((n) % NFDBITS)))

#  define	FD_ZERO(p)	(__extension__ (void)({ \

     size_t __i; \

     char *__tmp = (char *)p; \

     for (__i = 0; __i < sizeof (*(p)); ++__i) \

       *__tmp++ = 0; \

}))