From b0f69d46a95f1b0984bd758ce840572a20593a77 Mon Sep 17 00:00:00 2001
From: Matthias Koefferlein <matthias@koefferlein.de>
Date: Mon, 9 Jul 2018 00:55:41 +0200
Subject: [PATCH] WIP: one first basic Thread test.

---
 src/tl/unit_tests/tlThreads.cc   | 83 ++++++++++++++++++++++++++++++++
 src/tl/unit_tests/unit_tests.pro |  1 +
 2 files changed, 84 insertions(+)
 create mode 100644 src/tl/unit_tests/tlThreads.cc

diff --git a/src/tl/unit_tests/tlThreads.cc b/src/tl/unit_tests/tlThreads.cc
new file mode 100644
index 000000000..bef5b19d7
--- /dev/null
+++ b/src/tl/unit_tests/tlThreads.cc
@@ -0,0 +1,83 @@
+
+/*
+
+  KLayout Layout Viewer
+  Copyright (C) 2006-2018 Matthias Koefferlein
+
+  This program is free software; you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation; either version 2 of the License, or
+  (at your option) any later version.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+
+*/
+
+#include "tlThreads.h"
+#include "tlUnitTest.h"
+
+#include <stdio.h>
+
+#if defined(WIN32)
+#include <windows.h>
+inline void usleep(long us)
+{
+  Sleep(us / 1000);
+}
+#else
+#include <unistd.h>
+#endif
+
+class MyThread : public tl::Thread
+{
+public:
+  MyThread () : m_value (0), m_stop (false) { }
+
+  int value ()
+  {
+    tl::MutexLocker locker (&m_lock);
+    return m_value;
+  }
+
+  void run ()
+  {
+    for (int i = 0; i < 10 && !m_stop; ++i) {
+      {
+        tl::MutexLocker locker (&m_lock);
+        ++m_value;
+      }
+      usleep (10000);
+    }
+  }
+
+  void stop ()
+  {
+    m_stop = true;
+  }
+
+private:
+  int m_value;
+  bool m_stop;
+  tl::Mutex m_lock;
+};
+
+//  basic: concurrency, ability to stop async, wait
+TEST(1)
+{
+  MyThread my_thread;
+  my_thread.start ();
+  while (my_thread.value () < 5)
+    ;
+  my_thread.stop ();
+  my_thread.wait ();
+  //  stopped before 10 and after 5
+  EXPECT_EQ (my_thread.value () >= 5 && my_thread.value () < 10, true);
+}
+
diff --git a/src/tl/unit_tests/unit_tests.pro b/src/tl/unit_tests/unit_tests.pro
index 699e1d422..59ba2fddd 100644
--- a/src/tl/unit_tests/unit_tests.pro
+++ b/src/tl/unit_tests/unit_tests.pro
@@ -25,6 +25,7 @@ SOURCES = \
   tlStableVector.cc \
   tlString.cc \
   tlThreadedWorkers.cc \
+  tlThreads.cc \
   tlUtils.cc \
   tlVariant.cc \
   tlInt128Support.cc \