38 lines
1.0 KiB
C
38 lines
1.0 KiB
C
/* $NetBSD: ntp_select.h,v 1.3 1998/03/06 18:17:17 christos Exp $ */
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/*
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* Not all machines define FD_SET in sys/types.h
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*/
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#ifndef _ntp_select_h
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#define _ntp_select_h
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/* Was: (defined(RS6000)||defined(SYS_PTX))&&!defined(_BSD) */
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/* Could say: !defined(FD_SET) && defined(HAVE_SYS_SELECT_H) */
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#if defined(HAVE_SYS_SELECT_H) && !defined(_BSD)
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#ifndef SYS_VXWORKS
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#include <sys/select.h>
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#else
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#include <sockLib.h>
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extern int select (int width, fd_set *pReadFds, fd_set *pWriteFds,
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fd_set *pExceptFds, struct timeval *pTimeOut);
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#endif
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#endif
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#if !defined(FD_SET) && !defined(SYS_WINNT)
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#define NFDBITS 32
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#define FD_SETSIZE 32
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#define FD_SET(n, p) ((p)->fds_bits[(n)/NFDBITS] |= (1 << ((n) % NFDBITS)))
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#define FD_CLR(n, p) ((p)->fds_bits[(n)/NFDBITS] &= ~(1 << ((n) % NFDBITS)))
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#define FD_ISSET(n, p) ((p)->fds_bits[(n)/NFDBITS] & (1 << ((n) % NFDBITS)))
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#define FD_ZERO(p) memset((char *)(p), 0, sizeof(*(p)))
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#endif
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#if defined(VMS)
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typedef struct {
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unsigned int fds_bits[1];
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} fd_set;
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#endif
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#endif /* _ntp_select_h */
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