dist/ntp/include/ntp_select.h

   1 /*      $NetBSD$        */
   2
   3 /*
   4  * Not all machines define FD_SET in sys/types.h
   5  */
   6 #ifndef _ntp_select_h
   7 #define _ntp_select_h
   8
   9 /* Was: (defined(RS6000)||defined(SYS_PTX))&&!defined(_BSD) */
  10 /* Could say: !defined(FD_SET) && defined(HAVE_SYS_SELECT_H) */
  11 #if defined(HAVE_SYS_SELECT_H) && !defined(_BSD)
  12 #ifndef SYS_VXWORKS
  13 #include <sys/select.h>
  14 #else
  15 #include <sockLib.h>
  16 extern int  select P((int width, fd_set *pReadFds, fd_set *pWriteFds,
  17             fd_set *pExceptFds, struct timeval *pTimeOut));
  18
  19 #endif
  20 #endif
  21
  22 #if !defined(FD_SET) && !defined(SYS_WINNT)
  23 #define NFDBITS         32
  24 #define FD_SETSIZE      32
  25 #define FD_SET(n, p)    ((p)->fds_bits[(n)/NFDBITS] |= (1 << ((n) % NFDBITS)))
  26 #define FD_CLR(n, p)    ((p)->fds_bits[(n)/NFDBITS] &= ~(1 << ((n) % NFDBITS)))
  27 #define FD_ISSET(n, p)  ((p)->fds_bits[(n)/NFDBITS] & (1 << ((n) % NFDBITS)))
  28 #define FD_ZERO(p)      memset((char *)(p), 0, sizeof(*(p)))
  29 #endif
  30
  31 #if defined(VMS)
  32 typedef struct {
  33     unsigned int fds_bits[1];
  34 } fd_set;
  35 #endif
  36
  37 #endif /* _ntp_select_h */