libs/http/include/boost/http/detail/file_stdio.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_STDIO_HPP
11		#define BOOST_HTTP_DETAIL_FILE_STDIO_HPP
12
13		#include <boost/http/detail/config.hpp>
14		#include <boost/http/error.hpp>
15		#include <boost/http/file_mode.hpp>
16		#include <cstdio>
17		#include <cstdint>
18
19		namespace boost {
20		namespace http {
21		namespace detail {
22
23		// Implementation of File which uses cstdio.
24		class file_stdio
25		{
26		std::FILE* f_ = nullptr;
27
28		public:
29		using native_handle_type = std::FILE*;
30
31		BOOST_HTTP_DECL
32		~file_stdio();
33
34		file_stdio() = default;
35
36		BOOST_HTTP_DECL
37		file_stdio(file_stdio&& other) noexcept;
38
39		BOOST_HTTP_DECL
40		file_stdio&
41		operator=(file_stdio&& other) noexcept;
42
43		std::FILE*
44	2	native_handle() const
45		{
46	2	return f_;
47		}
48
49		BOOST_HTTP_DECL
50		void
51		native_handle(std::FILE* f);
52
53		bool
54	10	is_open() const
55		{
56	10	return f_ != nullptr;
57		}
58
59		BOOST_HTTP_DECL
60		void
61		close(system::error_code& ec);
62
63		BOOST_HTTP_DECL
64		void
65		open(char const* path, file_mode mode, system::error_code& ec);
66
67		BOOST_HTTP_DECL
68		std::uint64_t
69		size(system::error_code& ec) const;
70
71		BOOST_HTTP_DECL
72		std::uint64_t
73		pos(system::error_code& ec) const;
74
75		BOOST_HTTP_DECL
76		void
77		seek(std::uint64_t offset, system::error_code& ec);
78
79		BOOST_HTTP_DECL
80		std::size_t
81		read(void* buffer, std::size_t n, system::error_code& ec);
82
83		BOOST_HTTP_DECL
84		std::size_t
85		write(void const* buffer, std::size_t n, system::error_code& ec);
86		};
87
88		} // detail
89		} // http
90		} // boost
91
92		#endif
93