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/*
* ntp_workimpl.h - selects worker child implementation
*/
#ifndef NTP_WORKIMPL_H
#define NTP_WORKIMPL_H
/*
* Some systems do not support fork() and don't have an alternate
* threads implementation of ntp_intres. Such systems are limited
* to using numeric IP addresses.
*/
#if defined(SYS_WINNT)
# define WORK_THREAD
#elif defined(ISC_PLATFORM_USETHREADS) && \
defined(HAVE_SEM_TIMEDWAIT) && \
(defined(HAVE_GETCLOCK) || defined(HAVE_CLOCK_GETTIME))
# define WORK_THREAD
# define WORK_PIPE
#elif defined(VMS) || defined(SYS_VXWORKS)
/* empty */
#elif defined(HAVE_WORKING_FORK)
# define WORK_FORK
# define WORK_PIPE
#endif
#if defined(WORK_FORK) || defined(WORK_THREAD)
# define WORKER
#endif
#endif /* !NTP_WORKIMPL_H */
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