renamic coroutine<> -> asymmetric_coroutine<>

example/cpp03/asymmetric/segmented_stack.cpp

@@ -0,0 +1,67 @@
+
+//          Copyright Oliver Kowalke 2009.
+// Distributed under the Boost Software License, Version 1.0.
+//    (See accompanying file LICENSE_1_0.txt or copy at
+//          http://www.boost.org/LICENSE_1_0.txt)
+
+#include <iostream>
+
+#include <boost/assert.hpp>
+#include <boost/config.hpp>
+#include <boost/coroutine/all.hpp>
+#include <boost/thread.hpp>
+
+int count = 384;
+
+#ifdef BOOST_MSVC //MS VisualStudio
+__declspec(noinline) void access( char *buf);
+#else // GCC
+void access( char *buf) __attribute__ ((noinline));
+#endif
+void access( char *buf)
+{
+  buf[0] = '\0';
+}
+
+void bar( int i)
+{
+    char buf[4 * 1024];
+
+    if ( i > 0)
+    {
+        access( buf);
+        std::cout << i << ". iteration" << std::endl;
+        bar( i - 1);
+    }
+}
+
+void foo( boost::coroutines::coroutine< void >::pull_type & source)
+{
+    bar( count);
+    source();
+}
+
+void thread_fn()
+{
+    {
+        boost::coroutines::coroutine< void >::push_type sink( foo);
+        sink();
+    }
+}
+
+int main( int argc, char * argv[])
+{
+#if defined(BOOST_USE_SEGMENTED_STACKS)
+    std::cout << "using segmented stacks: allocates " << count << " * 4kB == " << 4 * count << "kB on stack, ";
+    std::cout << "initial stack size = " << boost::coroutines::stack_allocator::default_stacksize() / 1024 << "kB" << std::endl;
+    std::cout << "application should not fail" << std::endl;
+#else
+    std::cout << "using standard stacks: allocates " << count << " * 4kB == " << 4 * count << "kB on stack, ";
+    std::cout << "initial stack size = " << boost::coroutines::stack_allocator::default_stacksize() / 1024 << "kB" << std::endl;
+    std::cout << "application might fail" << std::endl;
+#endif
+
+    boost::thread( thread_fn).join();
+
+    return 0;
+}