From: Patrick Donnelly <pdonnell@redhat.com>
Date: Sat, 20 Feb 2021 03:18:25 +0000 (-0800)
Subject: common: add timeval conversion for durations
X-Git-Tag: v16.2.0~36^2~9
X-Git-Url: http://git-server-git.apps.pok.os.sepia.ceph.com/?a=commitdiff_plain;h=8c9502d03f010991a616c3a159ea339e6266f574;p=ceph.git

common: add timeval conversion for durations

Signed-off-by: Patrick Donnelly <pdonnell@redhat.com>
(cherry picked from commit b158ee04f9e75b9a9c9d4f46e297b80319689754)
---

diff --git a/src/common/ceph_time.h b/src/common/ceph_time.h
index 2f99188e439..92048029274 100644
--- a/src/common/ceph_time.h
+++ b/src/common/ceph_time.h
@@ -64,6 +64,16 @@ typedef int64_t signed_rep;
 // differences between now and a time point in the past.
 typedef std::chrono::duration<signed_rep, std::nano> signedspan;
 
+template<typename Duration>
+struct timeval to_timeval(Duration d) {
+  struct timeval tv;
+  auto sec = std::chrono::duration_cast<std::chrono::seconds>(d);
+  tv.tv_sec = sec.count();
+  auto usec = std::chrono::duration_cast<std::chrono::microseconds>(d-sec);
+  tv.tv_usec = usec.count();
+  return tv;
+}
+
 // We define our own clocks so we can have our choice of all time
 // sources supported by the operating system. With the standard
 // library the resolution and cost are unspecified. (For example,