ceph/src/boost/libs/signals2/test/dead_slot_test.cpp

   1 // Boost.Signals library
   2
   3 // Copyright (C) Douglas Gregor 2001-2006. Use, modification and
   4 // distribution is subject to the Boost Software License, Version
   5 // 1.0. (See accompanying file LICENSE_1_0.txt or copy at
   6 // http://www.boost.org/LICENSE_1_0.txt)
   7
   8 // For more information, see http://www.boost.org
   9
  10 #include <boost/bind/bind.hpp>
  11 #include <boost/shared_ptr.hpp>
  12 #include <boost/signals2.hpp>
  13 #define BOOST_TEST_MODULE dead_slot_test
  14 #include <boost/test/included/unit_test.hpp>
  15
  16 using namespace boost::placeholders;
  17
  18 typedef boost::signals2::signal<int (int)> sig_type;
  19
  20 class with_constant {
  21 public:
  22   with_constant(int c) : constant(c) {}
  23
  24   int add(int i) { return i + constant; }
  25
  26 private:
  27   int constant;
  28 };
  29
  30 void do_delayed_connect(boost::shared_ptr<with_constant> &wc,
  31                         sig_type& sig,
  32                         sig_type::slot_type slot)
  33 {
  34   // Should invalidate the slot, so that we cannot connect to it
  35   wc.reset();
  36
  37   boost::signals2::connection c = sig.connect(slot);
  38   BOOST_CHECK(!c.connected());
  39 }
  40
  41 BOOST_AUTO_TEST_CASE(test_main)
  42 {
  43   sig_type s1;
  44   boost::shared_ptr<with_constant> wc1(new with_constant(7));
  45
  46   do_delayed_connect(wc1, s1, sig_type::slot_type(&with_constant::add, wc1.get(), _1).track(wc1));
  47 }