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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/eventfd_select_interrupter.hpp | |
parent | 90c44a10fec26d2a0935b2d62e82b6a5be028373 (diff) | |
download | swift-contrib-332d60c56dfaa11fdd135088279d15cd5983b3d4.zip swift-contrib-332d60c56dfaa11fdd135088279d15cd5983b3d4.tar.bz2 |
Upgraded Boost to 1.45.0.
Diffstat (limited to '3rdParty/Boost/src/boost/asio/detail/eventfd_select_interrupter.hpp')
-rw-r--r-- | 3rdParty/Boost/src/boost/asio/detail/eventfd_select_interrupter.hpp | 118 |
1 files changed, 13 insertions, 105 deletions
diff --git a/3rdParty/Boost/src/boost/asio/detail/eventfd_select_interrupter.hpp b/3rdParty/Boost/src/boost/asio/detail/eventfd_select_interrupter.hpp index 4749ec9..b2cb68b 100644 --- a/3rdParty/Boost/src/boost/asio/detail/eventfd_select_interrupter.hpp +++ b/3rdParty/Boost/src/boost/asio/detail/eventfd_select_interrupter.hpp @@ -1,6 +1,6 @@ // -// eventfd_select_interrupter.hpp -// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +// detail/eventfd_select_interrupter.hpp +// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ // // Copyright (c) 2003-2010 Christopher M. Kohlhoff (chris at kohlhoff dot com) // Copyright (c) 2008 Roelof Naude (roelof.naude at gmail dot com) @@ -16,36 +16,11 @@ # pragma once #endif // defined(_MSC_VER) && (_MSC_VER >= 1200) -#include <boost/asio/detail/push_options.hpp> - -#include <boost/asio/detail/push_options.hpp> -#include <boost/config.hpp> -#include <boost/throw_exception.hpp> -#include <boost/system/system_error.hpp> -#include <boost/asio/detail/pop_options.hpp> - -#if defined(__linux__) -# if !defined(BOOST_ASIO_DISABLE_EVENTFD) -# include <linux/version.h> -# if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,22) -# define BOOST_ASIO_HAS_EVENTFD -# endif // LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,22) -# endif // !defined(BOOST_ASIO_DISABLE_EVENTFD) -#endif // defined(__linux__) +#include <boost/asio/detail/config.hpp> #if defined(BOOST_ASIO_HAS_EVENTFD) #include <boost/asio/detail/push_options.hpp> -#include <fcntl.h> -#if __GLIBC__ == 2 && __GLIBC_MINOR__ < 8 -# include <asm/unistd.h> -#else // __GLIBC__ == 2 && __GLIBC_MINOR__ < 8 -# include <sys/eventfd.h> -#endif // __GLIBC__ == 2 && __GLIBC_MINOR__ < 8 -#include <boost/asio/detail/pop_options.hpp> - -#include <boost/asio/error.hpp> -#include <boost/asio/detail/socket_types.hpp> namespace boost { namespace asio { @@ -55,87 +30,16 @@ class eventfd_select_interrupter { public: // Constructor. - eventfd_select_interrupter() - { -#if __GLIBC__ == 2 && __GLIBC_MINOR__ < 8 - write_descriptor_ = read_descriptor_ = syscall(__NR_eventfd, 0); -#else // __GLIBC__ == 2 && __GLIBC_MINOR__ < 8 - write_descriptor_ = read_descriptor_ = ::eventfd(0, 0); -#endif // __GLIBC__ == 2 && __GLIBC_MINOR__ < 8 - if (read_descriptor_ != -1) - { - ::fcntl(read_descriptor_, F_SETFL, O_NONBLOCK); - } - else - { - int pipe_fds[2]; - if (pipe(pipe_fds) == 0) - { - read_descriptor_ = pipe_fds[0]; - ::fcntl(read_descriptor_, F_SETFL, O_NONBLOCK); - write_descriptor_ = pipe_fds[1]; - ::fcntl(write_descriptor_, F_SETFL, O_NONBLOCK); - } - else - { - boost::system::error_code ec(errno, - boost::asio::error::get_system_category()); - boost::system::system_error e(ec, "eventfd_select_interrupter"); - boost::throw_exception(e); - } - } - } + BOOST_ASIO_DECL eventfd_select_interrupter(); // Destructor. - ~eventfd_select_interrupter() - { - if (write_descriptor_ != -1 && write_descriptor_ != read_descriptor_) - ::close(write_descriptor_); - if (read_descriptor_ != -1) - ::close(read_descriptor_); - } + BOOST_ASIO_DECL ~eventfd_select_interrupter(); // Interrupt the select call. - void interrupt() - { - uint64_t counter(1UL); - int result = ::write(write_descriptor_, &counter, sizeof(uint64_t)); - (void)result; - } + BOOST_ASIO_DECL void interrupt(); // Reset the select interrupt. Returns true if the call was interrupted. - bool reset() - { - if (write_descriptor_ == read_descriptor_) - { - for (;;) - { - // Only perform one read. The kernel maintains an atomic counter. - uint64_t counter(0); - errno = 0; - int bytes_read = ::read(read_descriptor_, &counter, sizeof(uint64_t)); - if (bytes_read < 0 && errno == EINTR) - continue; - bool was_interrupted = (bytes_read > 0); - return was_interrupted; - } - } - else - { - for (;;) - { - // Clear all data from the pipe. - char data[1024]; - int bytes_read = ::read(read_descriptor_, data, sizeof(data)); - if (bytes_read < 0 && errno == EINTR) - continue; - bool was_interrupted = (bytes_read > 0); - while (bytes_read == sizeof(data)) - bytes_read = ::read(read_descriptor_, data, sizeof(data)); - return was_interrupted; - } - } - } + BOOST_ASIO_DECL bool reset(); // Get the read descriptor to be passed to select. int read_descriptor() const @@ -161,8 +65,12 @@ private: } // namespace asio } // namespace boost -#endif // defined(BOOST_ASIO_HAS_EVENTFD) - #include <boost/asio/detail/pop_options.hpp> +#if defined(BOOST_ASIO_HEADER_ONLY) +# include <boost/asio/detail/impl/eventfd_select_interrupter.ipp> +#endif // defined(BOOST_ASIO_HEADER_ONLY) + +#endif // defined(BOOST_ASIO_HAS_EVENTFD) + #endif // BOOST_ASIO_DETAIL_EVENTFD_SELECT_INTERRUPTER_HPP |