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| author | Remko Tronçon <git@el-tramo.be> | 2009-06-01 08:48:42 (GMT) |
|---|---|---|
| committer | Remko Tronçon <git@el-tramo.be> | 2009-06-01 09:24:28 (GMT) |
| commit | 2812bddd81f8a1b804c7460f4e14cd0aa393d129 (patch) | |
| tree | d46294f35150c4f0f43deaf2d31fceaf945ae715 /3rdParty/Boost/boost/asio/detail/call_stack.hpp | |
| download | swift-2812bddd81f8a1b804c7460f4e14cd0aa393d129.zip swift-2812bddd81f8a1b804c7460f4e14cd0aa393d129.tar.bz2 | |
Import.
Diffstat (limited to '3rdParty/Boost/boost/asio/detail/call_stack.hpp')
| -rw-r--r-- | 3rdParty/Boost/boost/asio/detail/call_stack.hpp | 92 |
1 files changed, 92 insertions, 0 deletions
diff --git a/3rdParty/Boost/boost/asio/detail/call_stack.hpp b/3rdParty/Boost/boost/asio/detail/call_stack.hpp new file mode 100644 index 0000000..0096741 --- /dev/null +++ b/3rdParty/Boost/boost/asio/detail/call_stack.hpp @@ -0,0 +1,92 @@ +// +// call_stack.hpp +// ~~~~~~~~~~~~~~ +// +// Copyright (c) 2003-2008 Christopher M. Kohlhoff (chris at kohlhoff dot com) +// +// Distributed under the Boost Software License, Version 1.0. (See accompanying +// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) +// + +#ifndef BOOST_ASIO_DETAIL_CALL_STACK_HPP +#define BOOST_ASIO_DETAIL_CALL_STACK_HPP + +#if defined(_MSC_VER) && (_MSC_VER >= 1200) +# pragma once +#endif // defined(_MSC_VER) && (_MSC_VER >= 1200) + +#include <boost/asio/detail/push_options.hpp> + +#include <boost/asio/detail/noncopyable.hpp> +#include <boost/asio/detail/tss_ptr.hpp> + +namespace boost { +namespace asio { +namespace detail { + +// Helper class to determine whether or not the current thread is inside an +// invocation of io_service::run() for a specified io_service object. +template <typename Owner> +class call_stack +{ +public: + // Context class automatically pushes an owner on to the stack. + class context + : private noncopyable + { + public: + // Push the owner on to the stack. + explicit context(Owner* d) + : owner_(d), + next_(call_stack<Owner>::top_) + { + call_stack<Owner>::top_ = this; + } + + // Pop the owner from the stack. + ~context() + { + call_stack<Owner>::top_ = next_; + } + + private: + friend class call_stack<Owner>; + + // The owner associated with the context. + Owner* owner_; + + // The next element in the stack. + context* next_; + }; + + friend class context; + + // Determine whether the specified owner is on the stack. + static bool contains(Owner* d) + { + context* elem = top_; + while (elem) + { + if (elem->owner_ == d) + return true; + elem = elem->next_; + } + return false; + } + +private: + // The top of the stack of calls for the current thread. + static tss_ptr<context> top_; +}; + +template <typename Owner> +tss_ptr<typename call_stack<Owner>::context> +call_stack<Owner>::top_; + +} // namespace detail +} // namespace asio +} // namespace boost + +#include <boost/asio/detail/pop_options.hpp> + +#endif // BOOST_ASIO_DETAIL_CALL_STACK_HPP |