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Diffstat (limited to 'lib/asio/ssl/detail/openssl_init.hpp')
-rw-r--r-- | lib/asio/ssl/detail/openssl_init.hpp | 101 |
1 files changed, 0 insertions, 101 deletions
diff --git a/lib/asio/ssl/detail/openssl_init.hpp b/lib/asio/ssl/detail/openssl_init.hpp deleted file mode 100644 index c3e4727..0000000 --- a/lib/asio/ssl/detail/openssl_init.hpp +++ /dev/null @@ -1,101 +0,0 @@ -// -// ssl/detail/openssl_init.hpp -// ~~~~~~~~~~~~~~~~~~~~~~~~~~~ -// -// Copyright (c) 2003-2018 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 ASIO_SSL_DETAIL_OPENSSL_INIT_HPP -#define ASIO_SSL_DETAIL_OPENSSL_INIT_HPP - -#if defined(_MSC_VER) && (_MSC_VER >= 1200) -# pragma once -#endif // defined(_MSC_VER) && (_MSC_VER >= 1200) - -#include "asio/detail/config.hpp" -#include <cstring> -#include "asio/detail/memory.hpp" -#include "asio/detail/noncopyable.hpp" -#include "asio/ssl/detail/openssl_types.hpp" - -#include "asio/detail/push_options.hpp" - -namespace asio { -namespace ssl { -namespace detail { - -class openssl_init_base - : private noncopyable -{ -protected: - // Class that performs the actual initialisation. - class do_init; - - // Helper function to manage a do_init singleton. The static instance of the - // openssl_init object ensures that this function is always called before - // main, and therefore before any other threads can get started. The do_init - // instance must be static in this function to ensure that it gets - // initialised before any other global objects try to use it. - ASIO_DECL static asio::detail::shared_ptr<do_init> instance(); - -#if !defined(SSL_OP_NO_COMPRESSION) \ - && (OPENSSL_VERSION_NUMBER >= 0x00908000L) - // Get an empty stack of compression methods, to be used when disabling - // compression. - ASIO_DECL static STACK_OF(SSL_COMP)* get_null_compression_methods(); -#endif // !defined(SSL_OP_NO_COMPRESSION) - // && (OPENSSL_VERSION_NUMBER >= 0x00908000L) -}; - -template <bool Do_Init = true> -class openssl_init : private openssl_init_base -{ -public: - // Constructor. - openssl_init() - : ref_(instance()) - { - using namespace std; // For memmove. - - // Ensure openssl_init::instance_ is linked in. - openssl_init* tmp = &instance_; - memmove(&tmp, &tmp, sizeof(openssl_init*)); - } - - // Destructor. - ~openssl_init() - { - } - -#if !defined(SSL_OP_NO_COMPRESSION) \ - && (OPENSSL_VERSION_NUMBER >= 0x00908000L) - using openssl_init_base::get_null_compression_methods; -#endif // !defined(SSL_OP_NO_COMPRESSION) - // && (OPENSSL_VERSION_NUMBER >= 0x00908000L) - -private: - // Instance to force initialisation of openssl at global scope. - static openssl_init instance_; - - // Reference to singleton do_init object to ensure that openssl does not get - // cleaned up until the last user has finished with it. - asio::detail::shared_ptr<do_init> ref_; -}; - -template <bool Do_Init> -openssl_init<Do_Init> openssl_init<Do_Init>::instance_; - -} // namespace detail -} // namespace ssl -} // namespace asio - -#include "asio/detail/pop_options.hpp" - -#if defined(ASIO_HEADER_ONLY) -# include "asio/ssl/detail/impl/openssl_init.ipp" -#endif // defined(ASIO_HEADER_ONLY) - -#endif // ASIO_SSL_DETAIL_OPENSSL_INIT_HPP |