variadric tempalte args

examples/cpp03/join.cpp

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+#include <cstdlib>
+#include <iostream>
+#include <string>
+
+#include <boost/bind.hpp>
+
+#include <boost/fiber/all.hpp>
+
+int value1 = 0;
+int value2 = 0;
+
+void fn1()
+{
+    boost::fibers::fiber::id id =boost::this_fiber::get_id();
+    for ( int i = 0; i < 5; ++i)
+    {
+        ++value1;
+        std::cout << "fiber " << id << " fn1: increment value1: " << value1 << std::endl;
+        boost::this_fiber::yield();
+    }
+    std::cout << "fiber " << id << " fn1: returns" << std::endl;
+}
+
+void fn2( boost::fibers::fiber & f)
+{
+    boost::fibers::fiber::id id =boost::this_fiber::get_id();
+    for ( int i = 0; i < 5; ++i)
+    {
+        ++value2;
+        std::cout << "fiber " << id << " fn2: increment value2: " << value2 << std::endl;
+        if ( i == 1)
+        {
+            boost::fibers::fiber::id id = f.get_id();
+            std::cout << "fiber " << id << " fn2: joins fiber " << id << std::endl;
+            f.join();
+            std::cout << "fiber " << id << " fn2: joined fiber " << id << std::endl;
+        }
+        boost::this_fiber::yield();
+    }
+    std::cout << "fiber " << id << " fn2: returns" << std::endl;
+}
+
+int main()
+{
+    try
+    {
+        boost::fibers::fiber f1( fn1);
+        boost::fibers::fiber f2( boost::bind( fn2, boost::ref( f1) ) );
+
+        f2.join();
+
+        std::cout << "done." << std::endl;
+
+        return EXIT_SUCCESS;
+    }
+    catch ( std::exception const& e)
+    { std::cerr << "exception: " << e.what() << std::endl; }
+    catch (...)
+    { std::cerr << "unhandled exception" << std::endl; }
+    return EXIT_FAILURE;
+}