From ae43c5780651d594b1ec76e99330cd6ef082b0c5 Mon Sep 17 00:00:00 2001
From: Karen Arutyunov <karen@codesynthesis.com>
Date: Fri, 16 Oct 2020 22:18:45 +0300
Subject: Add fdselect() overload that also takes timeout

---
 libbutl/fdstream.ixx | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

(limited to 'libbutl/fdstream.ixx')

diff --git a/libbutl/fdstream.ixx b/libbutl/fdstream.ixx
index fb57b99..4ef5b1d 100644
--- a/libbutl/fdstream.ixx
+++ b/libbutl/fdstream.ixx
@@ -353,4 +353,23 @@ namespace butl
   {
     return fdmode (stderr_fd (), m);
   }
+
+  // fdselect
+  //
+  // Implement fdselect() function templates in terms of their milliseconds
+  // specialization.
+  //
+  template <>
+  LIBBUTL_SYMEXPORT std::pair<std::size_t, std::size_t>
+  fdselect (fdselect_set&, fdselect_set&, const std::chrono::milliseconds&);
+
+  template <typename R, typename P>
+  inline std::pair<std::size_t, std::size_t>
+  fdselect (fdselect_set& ifds,
+            fdselect_set& ofds,
+            const std::chrono::duration<R, P>& timeout)
+  {
+    using namespace std::chrono;
+    return fdselect (ifds, ofds, duration_cast<milliseconds> (timeout));
+  }
 }
-- 
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