libs/http/include/boost/http/detail/file_posix.hpp

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1		//
2		// Copyright (c) 2022 Vinnie Falco (vinnie.falco@gmail.com)
3		//
4		// Distributed under the Boost Software License, Version 1.0. (See accompanying
5		// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
6		//
7		// Official repository: https://github.com/cppalliance/http
8		//
9
10		#ifndef BOOST_HTTP_DETAIL_FILE_POSIX_HPP
11		#define BOOST_HTTP_DETAIL_FILE_POSIX_HPP
12
13		#include <boost/http/detail/config.hpp>
14
15		#if ! defined(BOOST_HTTP_NO_POSIX_FILE)
16		# if ! defined(__APPLE__) && ! defined(__linux__) && ! defined(__FreeBSD__) && ! defined(__NetBSD__)
17		# define BOOST_HTTP_NO_POSIX_FILE
18		# endif
19		#endif
20
21		#if ! defined(BOOST_HTTP_USE_POSIX_FILE)
22		# if ! defined(BOOST_HTTP_NO_POSIX_FILE)
23		# define BOOST_HTTP_USE_POSIX_FILE 1
24		# else
25		# define BOOST_HTTP_USE_POSIX_FILE 0
26		# endif
27		#endif
28
29		#if BOOST_HTTP_USE_POSIX_FILE
30
31		#include <boost/http/error.hpp>
32		#include <boost/http/file_mode.hpp>
33		#include <boost/system/error_code.hpp>
34		#include <cstdint>
35
36		namespace boost {
37		namespace http {
38		namespace detail {
39
40		// Implementation of File for POSIX systems.
41		class file_posix
42		{
43		int fd_ = -1;
44
45		BOOST_HTTP_DECL
46		static
47		int
48		native_close(int& fd);
49
50		public:
51		using native_handle_type = int;
52
53		BOOST_HTTP_DECL
54		~file_posix();
55
56	1	file_posix() = default;
57
58		BOOST_HTTP_DECL
59		file_posix(file_posix&& other) noexcept;
60
61		BOOST_HTTP_DECL
62		file_posix&
63		operator=(file_posix&& other) noexcept;
64
65		native_handle_type
66	4	native_handle() const
67		{
68	4	return fd_;
69		}
70
71		BOOST_HTTP_DECL
72		void
73		native_handle(native_handle_type fd);
74
75		bool
76	20	is_open() const
77		{
78	20	return fd_ != -1;
79		}
80
81		BOOST_HTTP_DECL
82		void
83		close(system::error_code& ec);
84
85		BOOST_HTTP_DECL
86		void
87		open(char const* path, file_mode mode, system::error_code& ec);
88
89		BOOST_HTTP_DECL
90		std::uint64_t
91		size(system::error_code& ec) const;
92
93		BOOST_HTTP_DECL
94		std::uint64_t
95		pos(system::error_code& ec) const;
96
97		BOOST_HTTP_DECL
98		void
99		seek(std::uint64_t offset, system::error_code& ec);
100
101		BOOST_HTTP_DECL
102		std::size_t
103		read(void* buffer, std::size_t n, system::error_code& ec);
104
105		BOOST_HTTP_DECL
106		std::size_t
107		write(void const* buffer, std::size_t n, system::error_code& ec);
108		};
109
110		} // detail
111		} // http
112		} // boost
113
114		#endif
115
116		#endif
117