ceph/src/boost/boost/process/detail/posix/group_ref.hpp

   1 // Copyright (c) 2016 Klemens D. Morgenstern
   2 //
   3 // Distributed under the Boost Software License, Version 1.0. (See accompanying
   4 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
   5
   6 #ifndef BOOST_PROCESS_DETAIL_POSIX_GROUP_REF_HPP_
   7 #define BOOST_PROCESS_DETAIL_POSIX_GROUP_REF_HPP_
   8
   9 #include <boost/process/detail/config.hpp>
  10 #include <boost/process/detail/posix/group_handle.hpp>
  11 #include <boost/process/detail/posix/handler.hpp>
  12 #include <unistd.h>
  13
  14
  15 namespace boost { namespace process {
  16
  17 namespace detail { namespace posix {
  18
  19
  20
  21 struct group_ref : handler_base_ext
  22 {
  23     group_handle & grp;
  24
  25
  26     explicit group_ref(group_handle & g) :
  27                 grp(g)
  28     {}
  29
  30     template <class Executor>
  31     void on_exec_setup(Executor&) const
  32     {
  33         if (grp.grp == -1)
  34             ::setpgid(0, 0);
  35         else
  36             ::setpgid(0, grp.grp);
  37     }
  38
  39     template <class Executor>
  40     void on_success(Executor& exec) const
  41     {
  42         if (grp.grp == -1)
  43             grp.grp = exec.pid;
  44
  45     }
  46
  47 };
  48
  49 }}}}
  50
  51
  52 #endif /* BOOST_PROCESS_DETAIL_POSIX_GROUP_REF_HPP_ */