91 lines
2.3 KiB
C++
91 lines
2.3 KiB
C++
//
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// process/environment/detail/environment_posix.hpp
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// ~~~~~~~~~~~~~~~~~~~~~~~~
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//
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// Copyright (c) 2021 Klemens D. Morgenstern (klemens dot morgenstern at gmx dot net)
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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_PROCESS_V2_DETAIL_ENVIRONMENT_POSIX_HPP
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#define BOOST_PROCESS_V2_DETAIL_ENVIRONMENT_POSIX_HPP
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#include <boost/process/v2/detail/config.hpp>
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#include <boost/process/v2/cstring_ref.hpp>
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#if defined(__APPLE__)
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# include <crt_externs.h>
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# if !defined(environ)
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# define environ (*_NSGetEnviron())
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# endif
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#elif defined(__MACH__) || defined(__FreeBSD__) || defined(__DragonFly__) || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__sun)
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extern "C" { extern char **environ; }
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#endif
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BOOST_PROCESS_V2_BEGIN_NAMESPACE
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namespace environment
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{
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using char_type = char;
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template<typename Char>
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using key_char_traits = std::char_traits<Char>;
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template<typename Char>
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using value_char_traits = std::char_traits<Char>;
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constexpr char_type equality_sign = '=';
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constexpr char_type delimiter = ':';
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namespace detail
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{
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BOOST_PROCESS_V2_DECL
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basic_cstring_ref<char_type, value_char_traits<char>>
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get(basic_cstring_ref<char_type, key_char_traits<char_type>> key, error_code & ec);
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BOOST_PROCESS_V2_DECL
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void set(basic_cstring_ref<char_type, key_char_traits<char_type>> key,
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basic_cstring_ref<char_type, value_char_traits<char_type>> value,
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error_code & ec);
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BOOST_PROCESS_V2_DECL
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void unset(basic_cstring_ref<char_type, key_char_traits<char_type>> key,
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error_code & ec);
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}
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using native_handle_type = const char * const *;
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using native_iterator = native_handle_type;
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namespace detail
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{
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BOOST_PROCESS_V2_DECL native_handle_type load_native_handle();
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struct native_handle_deleter
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{
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void operator()(native_handle_type) const {}
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};
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BOOST_PROCESS_V2_DECL native_iterator next(native_handle_type nh);
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BOOST_PROCESS_V2_DECL native_iterator find_end(native_handle_type nh);
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inline const char_type * dereference(native_iterator iterator) {return *iterator;}
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BOOST_PROCESS_V2_DECL bool has_x_access(const char * pth);
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inline bool is_executable(const filesystem::path & pth, error_code & ec)
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{
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return filesystem::is_regular_file(pth, ec) && has_x_access(pth.c_str());
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}
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}
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}
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BOOST_PROCESS_V2_END_NAMESPACE
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#endif
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