ceph/src/boost/libs/process/test/sub_launcher.cpp

   1 // Copyright (c) 2015 Klemens D. Morgenstern
   2 // Distributed under the Boost Software License, Version 1.0. (See accompanying
   3 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
   4
   5 #include <boost/process.hpp>
   6 #include <boost/program_options.hpp>
   7
   8 #include <vector>
   9 #include <string>
  10
  11 #include <iostream>
  12 #include <cstdint>
  13
  14 #include <fstream>
  15
  16 #include <chrono>
  17
  18
  19 int main(int argc, char *argv[])
  20 {
  21     using namespace std;
  22     using namespace boost::program_options;
  23     using namespace boost::process;
  24
  25     bool launch_detached = false;
  26     bool launch_attached = false;
  27
  28     options_description desc;
  29     desc.add_options()
  30          ("launch-detached", bool_switch(&launch_detached))
  31          ("launch-attached", bool_switch(&launch_attached))
  32          ;
  33
  34     variables_map vm;
  35     command_line_parser parser(argc, argv);
  36     store(parser.options(desc).allow_unregistered().run(), vm);
  37     notify(vm);
  38
  39     child c1;
  40     child c2;
  41
  42     std::error_code ec;
  43
  44     if (launch_attached)
  45     {
  46         c1 =     child(argv[0], ec,  std_out > null, std_err > null, std_in < null);
  47         if (ec)
  48         {
  49             cout << -1 << endl;
  50             cerr << ec.message() << endl;
  51             return 1;
  52         }
  53
  54         cout << c1.id() << endl;
  55     }
  56     else
  57         cout << -1 << endl;
  58
  59     if (launch_detached)
  60     {
  61         group g;
  62
  63         c2 = child(argv[0], ec, g, std_out > null, std_err > null, std_in < null);
  64         if (ec)
  65         {
  66             cout << -1 << endl;
  67             cerr << ec.message() << endl;
  68             return 1;
  69         }
  70         else
  71             cout << c2.id() << endl;
  72
  73         g.detach();
  74     }
  75     else
  76         cout << -1 << endl;
  77
  78
  79     this_thread::sleep_for(chrono::seconds(10));
  80
  81
  82     return 0;
  83 }