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109 lines
3.0 KiB
109 lines
3.0 KiB
// |
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// ssl/detail/impl/openssl_init.ipp |
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// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
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// |
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// Copyright (c) 2005 Voipster / Indrek dot Juhani at voipster dot com |
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// Copyright (c) 2005-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com) |
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// |
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// Distributed under the Boost Software License, Version 1.0. (See accompanying |
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// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) |
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// |
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#ifndef BOOST_ASIO_SSL_DETAIL_IMPL_OPENSSL_INIT_IPP |
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#define BOOST_ASIO_SSL_DETAIL_IMPL_OPENSSL_INIT_IPP |
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#if defined(_MSC_VER) && (_MSC_VER >= 1200) |
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# pragma once |
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#endif // defined(_MSC_VER) && (_MSC_VER >= 1200) |
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#include <boost/asio/detail/config.hpp> |
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#include <vector> |
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#include <boost/assert.hpp> |
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#include <boost/asio/detail/mutex.hpp> |
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#include <boost/asio/detail/tss_ptr.hpp> |
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#include <boost/asio/ssl/detail/openssl_init.hpp> |
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#include <boost/asio/ssl/detail/openssl_types.hpp> |
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#include <boost/asio/detail/push_options.hpp> |
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namespace boost { |
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namespace asio { |
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namespace ssl { |
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namespace detail { |
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class openssl_init_base::do_init |
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{ |
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public: |
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do_init() |
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{ |
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::SSL_library_init(); |
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::SSL_load_error_strings(); |
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::OpenSSL_add_all_algorithms(); |
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mutexes_.resize(::CRYPTO_num_locks()); |
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for (size_t i = 0; i < mutexes_.size(); ++i) |
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mutexes_[i].reset(new boost::asio::detail::mutex); |
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::CRYPTO_set_locking_callback(&do_init::openssl_locking_func); |
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::CRYPTO_set_id_callback(&do_init::openssl_id_func); |
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} |
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~do_init() |
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{ |
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::CRYPTO_set_id_callback(0); |
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::CRYPTO_set_locking_callback(0); |
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::ERR_free_strings(); |
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::ERR_remove_state(0); |
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::EVP_cleanup(); |
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::CRYPTO_cleanup_all_ex_data(); |
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::CONF_modules_unload(1); |
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::ENGINE_cleanup(); |
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} |
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private: |
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static unsigned long openssl_id_func() |
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{ |
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#if defined(BOOST_WINDOWS) || defined(__CYGWIN__) |
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return ::GetCurrentThreadId(); |
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#else // defined(BOOST_WINDOWS) || defined(__CYGWIN__) |
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void* id = instance()->thread_id_; |
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if (id == 0) |
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instance()->thread_id_ = id = &id; // Ugh. |
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BOOST_ASSERT(sizeof(unsigned long) >= sizeof(void*)); |
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return reinterpret_cast<unsigned long>(id); |
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#endif // defined(BOOST_WINDOWS) || defined(__CYGWIN__) |
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} |
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static void openssl_locking_func(int mode, int n, |
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const char* /*file*/, int /*line*/) |
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{ |
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if (mode & CRYPTO_LOCK) |
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instance()->mutexes_[n]->lock(); |
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else |
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instance()->mutexes_[n]->unlock(); |
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} |
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// Mutexes to be used in locking callbacks. |
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std::vector<boost::asio::detail::shared_ptr< |
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boost::asio::detail::mutex> > mutexes_; |
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#if !defined(BOOST_WINDOWS) && !defined(__CYGWIN__) |
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// The thread identifiers to be used by openssl. |
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boost::asio::detail::tss_ptr<void> thread_id_; |
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#endif // !defined(BOOST_WINDOWS) && !defined(__CYGWIN__) |
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}; |
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boost::asio::detail::shared_ptr<openssl_init_base::do_init> |
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openssl_init_base::instance() |
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{ |
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static boost::asio::detail::shared_ptr<do_init> init(new do_init); |
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return init; |
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} |
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} // namespace detail |
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} // namespace ssl |
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} // namespace asio |
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} // namespace boost |
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#include <boost/asio/detail/pop_options.hpp> |
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#endif // BOOST_ASIO_SSL_DETAIL_IMPL_OPENSSL_INIT_IPP
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