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[PATCH] fix duration handling in sigtimedwait
- From: Mark Geisert <mark at maxrnd dot com>
- To: cygwin-patches at cygwin dot com
- Cc: Mark Geisert <mark at maxrnd dot com>
- Date: Thu, 19 Jul 2018 02:35:40 -0700
- Subject: [PATCH] fix duration handling in sigtimedwait
- References: <20180718112628.GI27673@calimero.vinschen.de>
---
winsup/cygwin/signal.cc | 2 ++
1 file changed, 2 insertions(+)
diff --git a/winsup/cygwin/signal.cc b/winsup/cygwin/signal.cc
index e581d28da..de3e88697 100644
--- a/winsup/cygwin/signal.cc
+++ b/winsup/cygwin/signal.cc
@@ -640,6 +640,8 @@ sigtimedwait (const sigset_t *set, siginfo_t *info, const timespec *timeout)
waittime.QuadPart = (LONGLONG) timeout->tv_sec * NS100PERSEC
+ ((LONGLONG) timeout->tv_nsec + (NSPERSEC/NS100PERSEC) - 1)
/ (NSPERSEC/NS100PERSEC);
+ /* negate waittime to code as duration for NtSetTimer() below cygwait() */
+ waittime.QuadPart = -waittime.QuadPart;
}
return sigwait_common (set, info, timeout ? &waittime : cw_infinite);
--
2.17.0