ceph/src/boost/libs/thread/example/thread_guard.cpp

   1 // (C) Copyright 2009-2012 Anthony Williams
   2 // (C) Copyright 2012 Vicente Botet
   3 //
   4 //  Distributed under the Boost Software License, Version 1.0. (See accompanying
   5 //  file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
   6
   7
   8 #include <iostream>
   9 #include <string>
  10 #include <boost/thread/thread_only.hpp>
  11 #include <boost/thread/thread_guard.hpp>
  12
  13 void do_something(int& i)
  14 {
  15     ++i;
  16 }
  17
  18 struct func
  19 {
  20     int& i;
  21
  22     func(int& i_):i(i_){}
  23     func(func const& other):i(other.i){}
  24
  25     void operator()()
  26     {
  27         for(unsigned j=0;j<1000000;++j)
  28         {
  29             do_something(i);
  30         }
  31     }
  32
  33 private:
  34     func& operator=(func const&);
  35
  36 };
  37
  38 void do_something_in_current_thread()
  39 {}
  40
  41
  42 void f()
  43 {
  44     int some_local_state;
  45     func my_func(some_local_state);
  46     boost::thread t(my_func);
  47     boost::thread_guard<> g(t);
  48
  49     do_something_in_current_thread();
  50 }
  51
  52 int main()
  53 {
  54     f();
  55     return 0;
  56 }
  57
  58