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| author | Remko Tronçon <git@el-tramo.be> | 2010-11-24 20:33:19 (GMT) |
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| committer | Remko Tronçon <git@el-tramo.be> | 2010-11-24 20:35:17 (GMT) |
| commit | 332d60c56dfaa11fdd135088279d15cd5983b3d4 (patch) | |
| tree | dd77717a4e1732da929d5ff8a0471fa3f005e201 /3rdParty/Boost/src/boost/asio/detail/gcc_arm_fenced_block.hpp | |
| parent | 90c44a10fec26d2a0935b2d62e82b6a5be028373 (diff) | |
| download | swift-332d60c56dfaa11fdd135088279d15cd5983b3d4.zip swift-332d60c56dfaa11fdd135088279d15cd5983b3d4.tar.bz2 | |
Upgraded Boost to 1.45.0.
Diffstat (limited to '3rdParty/Boost/src/boost/asio/detail/gcc_arm_fenced_block.hpp')
| -rw-r--r-- | 3rdParty/Boost/src/boost/asio/detail/gcc_arm_fenced_block.hpp | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/3rdParty/Boost/src/boost/asio/detail/gcc_arm_fenced_block.hpp b/3rdParty/Boost/src/boost/asio/detail/gcc_arm_fenced_block.hpp new file mode 100644 index 0000000..1350f09 --- /dev/null +++ b/3rdParty/Boost/src/boost/asio/detail/gcc_arm_fenced_block.hpp @@ -0,0 +1,78 @@ +// +// detail/gcc_arm_fenced_block.hpp +// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +// +// Copyright (c) 2003-2010 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_GCC_ARM_FENCED_BLOCK_HPP +#define BOOST_ASIO_DETAIL_GCC_ARM_FENCED_BLOCK_HPP + +#if defined(_MSC_VER) && (_MSC_VER >= 1200) +# pragma once +#endif // defined(_MSC_VER) && (_MSC_VER >= 1200) + +#include <boost/asio/detail/config.hpp> + +#if defined(__GNUC__) && defined(__arm__) + +#include <boost/asio/detail/push_options.hpp> + +namespace boost { +namespace asio { +namespace detail { + +class gcc_arm_fenced_block + : private noncopyable +{ +public: + // Constructor. + gcc_arm_fenced_block() + { + barrier(); + } + + // Destructor. + ~gcc_arm_fenced_block() + { + barrier(); + } + +private: + static void barrier() + { +#if defined(__ARM_ARCH_4__) \ + || defined(__ARM_ARCH_4T__) \ + || defined(__ARM_ARCH_5__) \ + || defined(__ARM_ARCH_5E__) \ + || defined(__ARM_ARCH_5T__) \ + || defined(__ARM_ARCH_5TE__) \ + || defined(__ARM_ARCH_5TEJ__) \ + || defined(__ARM_ARCH_6__) \ + || defined(__ARM_ARCH_6J__) \ + || defined(__ARM_ARCH_6K__) \ + || defined(__ARM_ARCH_6Z__) \ + || defined(__ARM_ARCH_6ZK__) \ + || defined(__ARM_ARCH_6T2__) + int a = 0, b = 0; + __asm__ __volatile__ ("swp %0, %1, [%2]" + : "=&r"(a) : "r"(1), "r"(&b) : "memory", "cc"); +#else + // ARMv7 and later. + __asm__ __volatile__ ("dmb" : : : "memory"); +#endif + } +}; + +} // namespace detail +} // namespace asio +} // namespace boost + +#include <boost/asio/detail/pop_options.hpp> + +#endif // defined(__GNUC__) && defined(__arm__) + +#endif // BOOST_ASIO_DETAIL_GCC_ARM_FENCED_BLOCK_HPP |