From 41f958c4cf68541a48b20ceb608afe2308a6e6a7 Mon Sep 17 00:00:00 2001
From: Karen Arutyunov <karen@codesynthesis.com>
Date: Fri, 17 Aug 2018 23:14:37 +0300
Subject: Add timed_wait() and kill() to process class, change try_wait()
 signature

Review

Backup
---
 libbutl/process.ixx | 20 ++++++++++++--------
 1 file changed, 12 insertions(+), 8 deletions(-)

(limited to 'libbutl/process.ixx')

diff --git a/libbutl/process.ixx b/libbutl/process.ixx
index c2cd892..df3b588 100644
--- a/libbutl/process.ixx
+++ b/libbutl/process.ixx
@@ -223,14 +223,18 @@ namespace butl
     return *this;
   }
 
-  inline bool process::
-  try_wait (bool& s)
-  {
-    bool r (try_wait ());
-
-    if (r)
-      s = exit && exit->normal () && exit->code () == 0;
+  // Implement timed_wait() function templates in terms of their milliseconds
+  // specialization.
+  //
+  template <>
+  optional<bool> process::
+  timed_wait (const std::chrono::milliseconds&);
 
-    return r;
+  template <typename R, typename P>
+  inline optional<bool> process::
+  timed_wait (const std::chrono::duration<R, P>& d)
+  {
+    using namespace std::chrono;
+    return timed_wait (duration_cast<milliseconds> (d));
   }
 }
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