From f41599c8e9435f3dfec60b872c2b4ae31177efdd Mon Sep 17 00:00:00 2001
From: Karen Arutyunov <karen@codesynthesis.com>
Date: Sat, 10 Oct 2020 17:22:46 +0300
Subject: Add support for test timeouts

---
 libbuild2/utility.cxx | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

(limited to 'libbuild2/utility.cxx')

diff --git a/libbuild2/utility.cxx b/libbuild2/utility.cxx
index 81f6809..193610f 100644
--- a/libbuild2/utility.cxx
+++ b/libbuild2/utility.cxx
@@ -593,4 +593,22 @@ namespace build2
 
     script::regex::init ();
   }
+
+  optional<uint64_t>
+  parse_number (const string& s, uint64_t max_num)
+  {
+    optional<uint64_t> r;
+
+    if (!s.empty ())
+    {
+      const char* b (s.c_str ());
+      char* e (nullptr);
+      uint64_t v (strtoull (b, &e, 10)); // Can't throw.
+
+      if (errno != ERANGE && e == b + s.size () && v <= max_num)
+        r = v;
+    }
+
+    return r;
+  }
 }
-- 
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