ceph/src/boost/libs/coroutine/example/symmetric/simple.cpp

   1
   2 //          Copyright Oliver Kowalke 2009.
   3 // Distributed under the Boost Software License, Version 1.0.
   4 //    (See accompanying file LICENSE_1_0.txt or copy at
   5 //          http://www.boost.org/LICENSE_1_0.txt)
   6
   7 #include <cstdlib>
   8 #include <iostream>
   9
  10 #include <boost/bind.hpp>
  11 #include <boost/coroutine/all.hpp>
  12
  13 typedef boost::coroutines::symmetric_coroutine< void >  coro_t;
  14
  15 coro_t::call_type * c1 = 0;
  16 coro_t::call_type * c2 = 0;
  17
  18 void foo( coro_t::yield_type & yield)
  19 {
  20     std::cout << "foo1" << std::endl;
  21     yield( * c2);
  22     std::cout << "foo2" << std::endl;
  23     yield( * c2);
  24     std::cout << "foo3" << std::endl;
  25 }
  26
  27 void bar( coro_t::yield_type & yield)
  28 {
  29     std::cout << "bar1" << std::endl;
  30     yield( * c1);
  31     std::cout << "bar2" << std::endl;
  32     yield( * c1);
  33     std::cout << "bar3" << std::endl;
  34 }
  35
  36 int main( int argc, char * argv[])
  37 {
  38     coro_t::call_type coro1( foo);
  39     coro_t::call_type coro2( bar);
  40     c1 = & coro1;
  41     c2 = & coro2;
  42     coro1();
  43     std::cout << "Done" << std::endl;
  44
  45     return EXIT_SUCCESS;
  46 }