1 // Copyright (c) 2006, 2007 Julio M. Merino Vidal
2 // Copyright (c) 2008 Ilya Sokolov, Boris Schaeling
3 // Copyright (c) 2009 Boris Schaeling
4 // Copyright (c) 2010 Felipe Tanus, Boris Schaeling
5 // Copyright (c) 2011, 2012 Jeff Flinn, Boris Schaeling
6 // Copyright (c) 2016 Klemens D. Morgenstern
7 //
8 // Distributed under the Boost Software License, Version 1.0. (See accompanying
9 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
10
11 /**
12 * \file boost/process/config.hpp
13 *
14 * Defines various macros.
15 */
16
17 #ifndef BOOST_PROCESS_DETAIL_CONFIG_HPP
18 #define BOOST_PROCESS_DETAIL_CONFIG_HPP
19
20 #include <boost/config.hpp>
21 #include <system_error>
22 #include <boost/system/api_config.hpp>
23
24 #include <boost/process/exception.hpp>
25
26 #if defined(BOOST_POSIX_API)
27 #include <errno.h>
28 #if defined(__GLIBC__)
29 #include <features.h>
30 #else
31 extern char **environ;
32 #endif
33 #elif defined(BOOST_WINDOWS_API)
34 #include <boost/winapi/get_last_error.hpp>
35 #else
36 #error "System API not supported by boost.process"
37 #endif
38
39 namespace boost { namespace process { namespace detail
40 {
41
42 #if !defined(BOOST_PROCESS_PIPE_SIZE)
43 #define BOOST_PROCESS_PIPE_SIZE 1024
44 #endif
45
46 #if defined(BOOST_POSIX_API)
47 namespace posix {namespace extensions {}}
48 namespace api = posix;
49
get_last_error()50 inline std::error_code get_last_error() noexcept
51 {
52 return std::error_code(errno, std::system_category());
53 }
54
55 //copied from linux spec.
56 #if (_XOPEN_SOURCE >= 500 || _XOPEN_SOURCE && _XOPEN_SOURCE_EXTENDED) && !(_POSIX_C_SOURCE >= 200809L || _XOPEN_SOURCE >= 700)
57 #define BOOST_POSIX_HAS_VFORK 1
58 #endif
59
60 #if (_POSIX_C_SOURCE >= 199309L)
61 #define BOOST_POSIX_HAS_SIGTIMEDWAIT 1
62 #endif
63
64 #elif defined(BOOST_WINDOWS_API)
65 namespace windows {namespace extensions {}}
66 namespace api = windows;
67
68 inline std::error_code get_last_error() noexcept
69 {
70 return std::error_code(::boost::winapi::GetLastError(), std::system_category());
71 }
72 #endif
73
throw_last_error(const std::string & msg)74 inline void throw_last_error(const std::string & msg)
75 {
76 throw process_error(get_last_error(), msg);
77 }
78
throw_last_error(const char * msg)79 inline void throw_last_error(const char * msg)
80 {
81 throw process_error(get_last_error(), msg);
82 }
83
throw_last_error()84 inline void throw_last_error()
85 {
86 throw process_error(get_last_error());
87 }
88
throw_error(const std::error_code & ec)89 inline void throw_error(const std::error_code& ec)
90 {
91 if (ec)
92 throw process_error(ec);
93 }
94
throw_error(const std::error_code & ec,const char * msg)95 inline void throw_error(const std::error_code& ec, const char* msg)
96 {
97 if (ec)
98 throw process_error(ec, msg);
99 }
100
101 template<typename Char> constexpr Char null_char();
null_char()102 template<> constexpr char null_char<char> (){return '\0';}
null_char()103 template<> constexpr wchar_t null_char<wchar_t> (){return L'\0';}
104
105 template<typename Char> constexpr Char equal_sign();
equal_sign()106 template<> constexpr char equal_sign<char> () {return '='; }
equal_sign()107 template<> constexpr wchar_t equal_sign<wchar_t> () {return L'='; }
108
109 template<typename Char> constexpr Char quote_sign();
quote_sign()110 template<> constexpr char quote_sign<char> () {return '"'; }
quote_sign()111 template<> constexpr wchar_t quote_sign<wchar_t> () {return L'"'; }
112
113 template<typename Char> constexpr Char space_sign();
space_sign()114 template<> constexpr char space_sign<char> () {return ' '; }
space_sign()115 template<> constexpr wchar_t space_sign<wchar_t> () {return L' '; }
116
117
118 }}}
119 #endif
120