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authorRemko Tronçon <git@el-tramo.be>2009-06-01 08:48:42 (GMT)
committerRemko Tronçon <git@el-tramo.be>2009-06-01 09:24:28 (GMT)
commit2812bddd81f8a1b804c7460f4e14cd0aa393d129 (patch)
treed46294f35150c4f0f43deaf2d31fceaf945ae715 /3rdParty/Boost/boost/asio/detail/win_fd_set_adapter.hpp
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Import.
Diffstat (limited to '3rdParty/Boost/boost/asio/detail/win_fd_set_adapter.hpp')
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1 files changed, 90 insertions, 0 deletions
diff --git a/3rdParty/Boost/boost/asio/detail/win_fd_set_adapter.hpp b/3rdParty/Boost/boost/asio/detail/win_fd_set_adapter.hpp
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+//
+// win_fd_set_adapter.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_WIN_FD_SET_ADAPTER_HPP
+#define BOOST_ASIO_DETAIL_WIN_FD_SET_ADAPTER_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/socket_types.hpp>
+
+#if defined(BOOST_WINDOWS) || defined(__CYGWIN__)
+
+namespace boost {
+namespace asio {
+namespace detail {
+
+// Adapts the FD_SET type to meet the Descriptor_Set concept's requirements.
+class win_fd_set_adapter
+{
+public:
+ enum { win_fd_set_size = 1024 };
+
+ win_fd_set_adapter()
+ : max_descriptor_(invalid_socket)
+ {
+ fd_set_.fd_count = 0;
+ }
+
+ bool set(socket_type descriptor)
+ {
+ for (u_int i = 0; i < fd_set_.fd_count; ++i)
+ if (fd_set_.fd_array[i] == descriptor)
+ return true;
+ if (fd_set_.fd_count < win_fd_set_size)
+ {
+ fd_set_.fd_array[fd_set_.fd_count++] = descriptor;
+ return true;
+ }
+ return false;
+ }
+
+ bool is_set(socket_type descriptor) const
+ {
+ return !!__WSAFDIsSet(descriptor,
+ const_cast<fd_set*>(reinterpret_cast<const fd_set*>(&fd_set_)));
+ }
+
+ operator fd_set*()
+ {
+ return reinterpret_cast<fd_set*>(&fd_set_);
+ }
+
+ socket_type max_descriptor() const
+ {
+ return max_descriptor_;
+ }
+
+private:
+ // This structure is defined to be compatible with the Windows API fd_set
+ // structure, but without being dependent on the value of FD_SETSIZE.
+ struct win_fd_set
+ {
+ u_int fd_count;
+ SOCKET fd_array[win_fd_set_size];
+ };
+
+ win_fd_set fd_set_;
+ socket_type max_descriptor_;
+};
+
+} // namespace detail
+} // namespace asio
+} // namespace boost
+
+#endif // defined(BOOST_WINDOWS) || defined(__CYGWIN__)
+
+#include <boost/asio/detail/pop_options.hpp>
+
+#endif // BOOST_ASIO_DETAIL_WIN_FD_SET_ADAPTER_HPP