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git.proxmox.com Git - ceph.git/blob - ceph/src/boost/libs/process/example/posix.cpp
1 // Copyright (c) 2006, 2007 Julio M. Merino Vidal
2 // Copyright (c) 2008 Ilya Sokolov, Boris Schaeling
3 // Copyright (c) 2009 Boris Schaeling
4 // Copyright (c) 2010 Felipe Tanus, Boris Schaeling
5 // Copyright (c) 2011, 2012 Jeff Flinn, Boris Schaeling
7 // Distributed under the Boost Software License, Version 1.0. (See accompanying
8 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
10 #include <boost/process.hpp>
11 #include <boost/process/posix.hpp>
12 #include <boost/process/extend.hpp>
18 namespace bp
= boost::process
;
23 //duplicate our pipe descriptor into literal position 4
25 bp::system("test", bp::posix::fd
.bind(4, p
.native_sink()));
28 //close file-descriptor from explicit integral value
29 bp::system("test", bp::posix::fd
.close(STDIN_FILENO
));
31 //close file-descriptors from explicit integral values
32 bp::system("test", bp::posix::fd
.close({STDIN_FILENO
, STDOUT_FILENO
}));
35 const char *env
[2] = { 0 };
38 bp::extend::on_setup([env
](auto &e
) { e
.env
= const_cast<char**>(env
); }),
39 bp::extend::on_fork_error([](auto&, const std::error_code
& ec
)
40 { std::cerr
<< errno
<< std::endl
; }),
41 bp::extend::on_exec_setup([](auto&)
42 { ::chroot("/new/root/directory/"); }),
43 bp::extend::on_exec_error([](auto&, const std::error_code
& ec
)
44 { std::ofstream
ofs("log.txt"); if (ofs
) ofs
<< errno
; })