projects / ceph.git / blame
| Commit | Line | Data |
|---|---|---|
| 7c673cae FG |
1 | // |
| 2 | // copy of needed macors from yield.hpp | |
| 3 | // | |
| 4 | // Copyright (c) 2003-2013 Christopher M. Kohlhoff (chris at kohlhoff dot com) | |
| 5 | // | |
| 6 | // Distributed under the Boost Software License, Version 1.0. (See accompanying | |
| 7 | // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) | |
| 8 | // | |
| 9 | ||
| 10 | #ifndef RGW_BOOST_ASIO_YIELD_H | |
| 11 | #define RGW_BOOST_ASIO_YIELD_H | |
| 12 | ||
| 13 | #ifdef HAVE_BOOST_ASIO_COROUTINE | |
| 14 | #include <boost/asio/yield.hpp> | |
| 15 | #else | |
| 16 | #define BOOST_ASIO_CORO_REENTER(c) \ | |
| 17 | switch (::boost::asio::detail::coroutine_ref _coro_value = c) \ | |
| 18 | case -1: if (_coro_value) \ | |
| 19 | { \ | |
| 20 | goto terminate_coroutine; \ | |
| 21 | terminate_coroutine: \ | |
| 22 | _coro_value = -1; \ | |
| 23 | goto bail_out_of_coroutine; \ | |
| 24 | bail_out_of_coroutine: \ | |
| 25 | break; \ | |
| 26 | } \ | |
| 27 | else case 0: | |
| 28 | ||
| 29 | #define BOOST_ASIO_CORO_YIELD_IMPL(n) \ | |
| 30 | for (_coro_value = (n);;) \ | |
| 31 | if (_coro_value == 0) \ | |
| 32 | { \ | |
| 33 | case (n): ; \ | |
| 34 | break; \ | |
| 35 | } \ | |
| 36 | else \ | |
| 37 | switch (_coro_value ? 0 : 1) \ | |
| 38 | for (;;) \ | |
| 39 | case -1: if (_coro_value) \ | |
| 40 | goto terminate_coroutine; \ | |
| 41 | else for (;;) \ | |
| 42 | case 1: if (_coro_value) \ | |
| 43 | goto bail_out_of_coroutine; \ | |
| 44 | else case 0: | |
| 45 | ||
| 46 | #define BOOST_ASIO_CORO_FORK_IMPL(n) \ | |
| 47 | for (_coro_value = -(n);; _coro_value = (n)) \ | |
| 48 | if (_coro_value == (n)) \ | |
| 49 | { \ | |
| 50 | case -(n): ; \ | |
| 51 | break; \ | |
| 52 | } \ | |
| 53 | else | |
| 54 | ||
| 55 | #if defined(_MSC_VER) | |
| 56 | # define BOOST_ASIO_CORO_YIELD BOOST_ASIO_CORO_YIELD_IMPL(__COUNTER__ + 1) | |
| 57 | # define BOOST_ASIO_CORO_FORK BOOST_ASIO_CORO_FORK_IMPL(__COUNTER__ + 1) | |
| 58 | #else // defined(_MSC_VER) | |
| 59 | # define BOOST_ASIO_CORO_YIELD BOOST_ASIO_CORO_YIELD_IMPL(__LINE__) | |
| 60 | # define BOOST_ASIO_CORO_FORK BOOST_ASIO_CORO_FORK_IMPL(__LINE__) | |
| 61 | #endif // defined(_MSC_VER) | |
| 62 | ||
| 63 | #ifndef reenter | |
| 64 | # define reenter(c) BOOST_ASIO_CORO_REENTER(c) | |
| 65 | #endif | |
| 66 | ||
| 67 | #ifndef yield | |
| 68 | # define yield BOOST_ASIO_CORO_YIELD | |
| 69 | #endif | |
| 70 | ||
| 71 | #ifndef fork | |
| 72 | # define fork BOOST_ASIO_CORO_FORK | |
| 73 | #endif | |
| 74 | ||
| 75 | #endif // HAVE_BOOST_ASIO_COROUTINE | |
| 76 | ||
| 77 | #endif // RGW_BOOST_ASIO_YIELD_H | |
| 78 |