From 2a25cee78ab1d37e7d2bc40ae675646974d99f56 Mon Sep 17 00:00:00 2001
From: delphij <delphij@FreeBSD.org>
Date: Wed, 15 Jul 2015 19:21:26 +0000
Subject: MFC r280849,280915-280916,281015-281016,282097,282408,282415,283542, 
     284864,285169-285170,285435:

ntp 4.2.8p3.

Relnotes:	yes
Approved by:	re (?)
---
 contrib/ntp/include/ntp_workimpl.h | 30 ++++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)
 create mode 100644 contrib/ntp/include/ntp_workimpl.h

(limited to 'contrib/ntp/include/ntp_workimpl.h')

diff --git a/contrib/ntp/include/ntp_workimpl.h b/contrib/ntp/include/ntp_workimpl.h
new file mode 100644
index 0000000..a86c2cd
--- /dev/null
+++ b/contrib/ntp/include/ntp_workimpl.h
@@ -0,0 +1,30 @@
+/*
+ * 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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