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Diffstat (limited to 'boost/uuid/detail/random_provider_detect_platform.hpp')
| -rw-r--r-- | boost/uuid/detail/random_provider_detect_platform.hpp | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/boost/uuid/detail/random_provider_detect_platform.hpp b/boost/uuid/detail/random_provider_detect_platform.hpp new file mode 100644 index 0000000000..497d7f42c1 --- /dev/null +++ b/boost/uuid/detail/random_provider_detect_platform.hpp @@ -0,0 +1,62 @@ +// +// Copyright (c) 2017 James E. King III +// +// Distributed under the Boost Software License, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at +// http://www.boost.org/LICENCE_1_0.txt) +// +// Platform-specific random entropy provider platform detection +// + +#ifndef BOOST_UUID_DETAIL_RANDOM_PROVIDER_PLATFORM_DETECTION_HPP +#define BOOST_UUID_DETAIL_RANDOM_PROVIDER_PLATFORM_DETECTION_HPP + +#include <boost/predef/library/c/cloudabi.h> +#include <boost/predef/library/c/gnu.h> +#include <boost/predef/os/bsd/open.h> +#include <boost/predef/os/windows.h> + +// +// Platform Detection - will load in the correct header and +// will define the class <tt>random_provider_base</tt>. +// + +#if BOOST_OS_BSD_OPEN >= BOOST_VERSION_NUMBER(2, 1, 0) || BOOST_LIB_C_CLOUDABI +# define BOOST_UUID_RANDOM_PROVIDER_ARC4RANDOM +# define BOOST_UUID_RANDOM_PROVIDER_NAME arc4random + +#elif BOOST_OS_WINDOWS +# include <boost/winapi/config.hpp> +# if BOOST_WINAPI_PARTITION_APP_SYSTEM && \ + !defined(BOOST_UUID_RANDOM_PROVIDER_FORCE_WINCRYPT) && \ + !defined(_WIN32_WCE) && \ + (defined(BOOST_WINAPI_IS_MINGW_W64) || \ + (BOOST_USE_WINAPI_VERSION >= BOOST_WINAPI_VERSION_WIN6)) +# define BOOST_UUID_RANDOM_PROVIDER_BCRYPT +# define BOOST_UUID_RANDOM_PROVIDER_NAME bcrypt + +# elif BOOST_WINAPI_PARTITION_DESKTOP || BOOST_WINAPI_PARTITION_SYSTEM +# define BOOST_UUID_RANDOM_PROVIDER_WINCRYPT +# define BOOST_UUID_RANDOM_PROVIDER_NAME wincrypt +# else +# error Unable to find a suitable windows entropy provider +# endif + +#elif BOOST_LIB_C_GNU >= BOOST_VERSION_NUMBER(2, 25, 0) && !defined(BOOST_UUID_RANDOM_PROVIDER_FORCE_POSIX) +# define BOOST_UUID_RANDOM_PROVIDER_GETENTROPY +# define BOOST_UUID_RANDOM_PROVIDER_NAME getentropy + +#else +# define BOOST_UUID_RANDOM_PROVIDER_POSIX +# define BOOST_UUID_RANDOM_PROVIDER_NAME posix + +#endif + +#define BOOST_UUID_RANDOM_PROVIDER_STRINGIFY2(X) #X +#define BOOST_UUID_RANDOM_PROVIDER_STRINGIFY(X) BOOST_UUID_RANDOM_PROVIDER_STRINGIFY2(X) + +#if defined(BOOST_UUID_RANDOM_PROVIDER_SHOW) +#pragma message("BOOST_UUID_RANDOM_PROVIDER_NAME " BOOST_UUID_RANDOM_PROVIDER_STRINGIFY(BOOST_UUID_RANDOM_PROVIDER_NAME)) +#endif + +#endif // BOOST_UUID_DETAIL_RANDOM_PROVIDER_PLATFORM_DETECTION_HPP |