summaryrefslogtreecommitdiff
path: root/boost/process/detail/posix/null_in.hpp
diff options
context:
space:
mode:
Diffstat (limited to 'boost/process/detail/posix/null_in.hpp')
-rw-r--r--boost/process/detail/posix/null_in.hpp35
1 files changed, 35 insertions, 0 deletions
diff --git a/boost/process/detail/posix/null_in.hpp b/boost/process/detail/posix/null_in.hpp
new file mode 100644
index 0000000000..9f082054c6
--- /dev/null
+++ b/boost/process/detail/posix/null_in.hpp
@@ -0,0 +1,35 @@
+// Copyright (c) 2006, 2007 Julio M. Merino Vidal
+// Copyright (c) 2008 Ilya Sokolov, Boris Schaeling
+// Copyright (c) 2009 Boris Schaeling
+// Copyright (c) 2010 Felipe Tanus, Boris Schaeling
+// Copyright (c) 2011, 2012 Jeff Flinn, Boris Schaeling
+//
+// 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)
+
+#ifndef BOOST_PROCESS_DETAIL_POSIX_NULL_IN_HPP
+#define BOOST_PROCESS_DETAIL_POSIX_NULL_IN_HPP
+
+#include <boost/process/pipe.hpp>
+#include <boost/process/detail/posix/handler.hpp>
+#include <boost/process/detail/posix/file_descriptor.hpp>
+#include <unistd.h>
+
+namespace boost { namespace process { namespace detail { namespace posix {
+
+struct null_in : handler_base_ext
+{
+ file_descriptor source{"/dev/null", file_descriptor::read};
+
+public:
+ template <class Executor>
+ void on_exec_setup(Executor &e) const
+ {
+ if (::dup2(source.handle(), STDIN_FILENO) == -1)
+ e.set_error(::boost::process::detail::get_last_error(), "dup2() failed");
+ }
+};
+
+}}}}
+
+#endif