[Boost-commit] svn:boost r39780 - trunk/libs/thread/test

From: anthony_at_[hidden]
Date: 2007-10-08 05:48:57

Author: anthonyw
Date: 2007-10-08 05:48:57 EDT (Mon, 08 Oct 2007)
New Revision: 39780
URL: http://svn.boost.org/trac/boost/changeset/39780

Log:
added extended test for new call_once
Text files modified: 
   trunk/libs/thread/test/test_once.cpp |    49 ++++++++++++++++++++++++++++++++++++++++
   1 files changed, 49 insertions(+), 0 deletions(-)

Modified: trunk/libs/thread/test/test_once.cpp
==============================================================================
--- trunk/libs/thread/test/test_once.cpp	(original)
+++ trunk/libs/thread/test/test_once.cpp	2007-10-08 05:48:57 EDT (Mon, 08 Oct 2007)
@@ -49,6 +49,54 @@
     BOOST_CHECK_EQUAL(var_to_init,1);
 }
 
+int var_to_init_with_functor=0;
+
+struct increment_value
+{
+    int* value;
+    explicit increment_value(int* value_):
+        value(value_)
+    {}
+    
+    void operator()() const
+    {
+        boost::mutex::scoped_lock lock(m);
+        ++(*value);
+    }
+};
+
+void call_once_with_functor()
+{
+    unsigned const loop_count=100;
+    int my_once_value=0;
+    static boost::once_flag functor_flag=BOOST_ONCE_INIT;
+    for(unsigned i=0;i<loop_count;++i)
+    {
+        boost::call_once(functor_flag, increment_value(&var_to_init_with_functor));
+        my_once_value=var_to_init_with_functor;
+        if(my_once_value!=1)
+        {
+            break;
+        }
+    }
+    boost::mutex::scoped_lock lock(m);
+    BOOST_CHECK_EQUAL(my_once_value, 1);
+}
+
+
+void test_call_once_arbitrary_functor()
+{
+    unsigned const num_threads=100;
+    boost::thread_group group;
+
+    for(unsigned i=0;i<num_threads;++i)
+    {
+        group.create_thread(&call_once_with_functor);
+    }
+    group.join_all();
+    BOOST_CHECK_EQUAL(var_to_init_with_functor,1);
+}
+
 
 boost::unit_test_framework::test_suite* init_unit_test_suite(int, char*[])
 {
@@ -56,6 +104,7 @@
         BOOST_TEST_SUITE("Boost.Threads: call_once test suite");
 
     test->add(BOOST_TEST_CASE(test_call_once));
+    test->add(BOOST_TEST_CASE(test_call_once_arbitrary_functor));
 
     return test;
 }