[Boost-commit] svn:boost r52428 - sandbox/threadpool/boost/tp

Subject: [Boost-commit] svn:boost r52428 - sandbox/threadpool/boost/tp
From: oliver.kowalke_at_[hidden]
Date: 2009-04-16 15:03:40

Author: olli
Date: 2009-04-16 15:03:40 EDT (Thu, 16 Apr 2009)
New Revision: 52428
URL: http://svn.boost.org/trac/boost/changeset/52428

Log:
* added make_task()

Text files modified: 
   sandbox/threadpool/boost/tp/task.hpp |    29 +++++++++++++++++++++++++++++           
   1 files changed, 29 insertions(+), 0 deletions(-)

Modified: sandbox/threadpool/boost/tp/task.hpp
==============================================================================
--- sandbox/threadpool/boost/tp/task.hpp	(original)
+++ sandbox/threadpool/boost/tp/task.hpp	2009-04-16 15:03:40 EDT (Thu, 16 Apr 2009)
@@ -14,6 +14,7 @@
 #include <boost/exception_ptr.hpp>
 #include <boost/exception/exception.hpp>
 #include <boost/future.hpp>
+#include <boost/preprocessor/repetition.hpp>
 #include <boost/thread.hpp>
 #include <boost/thread/thread_time.hpp>
 #include <boost/utility/result_of.hpp>
@@ -403,6 +404,34 @@
 template< typename T1, typename T2, typename T3, typename T4, typename T5 >
 unsigned int waitfor_any( task< T1 > & t1, task< T2 > & t2, task< T3 > & t3, task< T4 > & t4, task< T5 > & t5)
 { return wait_for_any( t1.fut_, t2.fut_, t3.fut_, t4.fut_, t5.fut_); }
+
+template< typename Fn >
+task< typename result_of< Fn() >::type > make_task( Fn fn)
+{ return task< typename boost::result_of< Fn() >::type >( fn); }
+
+# ifndef BOOST_TP_MAKE_TASK_MAX_ARITY
+#   define BOOST_TP_MAKE_TASK_MAX_ARITY 10
+# endif
+
+# define BOOST_TP_MAKE_TASK_FUNC_ARG(z, n, unused) \
+   BOOST_PP_CAT(A, n) BOOST_PP_CAT(a, n)
+# define BOOST_ENUM_TP_MAKE_TASK_FUNC_ARGS(n) BOOST_PP_ENUM(n, BOOST_TP_MAKE_TASK_FUNC_ARG, ~)
+
+# define BOOST_TP_MAKE_TASK_FUNCTION(z, n, unused)	\
+template<											\
+	typename Fn,									\
+	BOOST_PP_ENUM_PARAMS(n, typename A)				\
+>													\
+task< typename result_of< Fn( BOOST_PP_ENUM_PARAMS(n, A)) >::type >		\
+make_task( Fn fn, BOOST_ENUM_TP_MAKE_TASK_FUNC_ARGS(n))					\
+{ return make_task( boost::bind( fn, BOOST_PP_ENUM_PARAMS(n, a))); }
+
+BOOST_PP_REPEAT_FROM_TO( 1, BOOST_TP_MAKE_TASK_MAX_ARITY, BOOST_TP_MAKE_TASK_FUNCTION, ~)
+
+# undef BOOST_TP_MAKE_TASK_FUNCTION
+# undef BOOST_TP_MAKE_TASK_FUNC_ARG
+# undef BOOST_ENUM_TP_MAKE_TASK_FUNC_ARGS
+
 }}
 
 #endif // BOOST_TP_TASK_H