ceph/src/boost/libs/process/test/on_exit2.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
   6 //
   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)
   9
  10 #define BOOST_TEST_MAIN
  11 #define BOOST_TEST_IGNORE_SIGCHLD
  12 #include <boost/test/included/unit_test.hpp>
  13 #include <boost/process.hpp>
  14 #include <boost/asio.hpp>
  15 #include <chrono>
  16 #include <thread>
  17
  18 BOOST_AUTO_TEST_CASE(double_ios, *boost::unit_test::timeout(6))
  19 {
  20     using boost::unit_test::framework::master_test_suite;
  21
  22     if (master_test_suite().argc > 2 && strcmp(master_test_suite().argv[1], "sleep") == 0)
  23     {
  24         auto s = atoi(master_test_suite().argv[2]);
  25         std::this_thread::sleep_for(std::chrono::seconds(s));
  26         return;
  27     }
  28
  29     namespace bp = boost::process;
  30     boost::asio::io_context ios;
  31     std::chrono::steady_clock::time_point p1, p2;
  32
  33     // launch a child that will sleep for 2s
  34     auto c1 = bp::child(master_test_suite().argv[0], "sleep", "2", ios,
  35         bp::on_exit([&p1](int, const std::error_code&)
  36     { p1 = std::chrono::steady_clock::now(); }));
  37
  38     // wait a bit, make sure the child launch for my test
  39     std::this_thread::sleep_for(std::chrono::milliseconds(10));
  40
  41     // launch a child that will sleep for 4s
  42     auto c2 = bp::child(master_test_suite().argv[0], "sleep", "4", ios,
  43         bp::on_exit([&p2](int, const std::error_code&)
  44     { p2 = std::chrono::steady_clock::now(); }));
  45
  46
  47     ios.run();
  48     BOOST_REQUIRE((p2 - p1) > std::chrono::seconds(1));
  49 }
  50