src/corosio/src/local_stream_acceptor.cpp

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local_stream_acceptor.cpp
f(x) Functions (12)
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1 //
2 // Copyright (c) 2026 Michael Vandeberg
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/corosio
8 //
9
10 #include <boost/corosio/local_stream_acceptor.hpp>
11 #include <boost/corosio/detail/except.hpp>
12 #include <boost/corosio/detail/platform.hpp>
13 #include <boost/corosio/detail/local_stream_acceptor_service.hpp>
14
15 #include <cstring>
16
17 #if BOOST_COROSIO_POSIX
18 #include <sys/socket.h>
19 #include <unistd.h>
20 #else
21 // Windows: AF_UNIX socket files are reparse points with tag
22 // IO_REPARSE_TAG_AF_UNIX. DeleteFileA reliably removes them;
23 // std::filesystem::remove via libstdc++/MS STL was observed to
24 // silently leave them in place on at least some Windows hosts,
25 // so call the Win32 API directly.
26 #define WIN32_LEAN_AND_MEAN
27 #include <winsock2.h>
28 #include <windows.h>
29 #ifndef AF_UNIX
30 #define AF_UNIX 1
31 #endif
32 #endif
33
34 namespace boost::corosio {
35
36 112x local_stream_acceptor::~local_stream_acceptor()
37 {
38 112x close();
39 112x }
40
41 92x local_stream_acceptor::local_stream_acceptor(capy::execution_context& ctx)
42 92x : io_object(create_handle<detail::local_stream_acceptor_service>(ctx))
43 92x , ctx_(ctx)
44 {
45 92x }
46
47 14x local_stream_acceptor::local_stream_acceptor(
48 14x capy::execution_context& ctx, corosio::local_endpoint ep, int backlog)
49 14x : local_stream_acceptor(ctx)
50 {
51 14x if (auto ec = open())
52 5x detail::throw_system_error(ec, "local_stream_acceptor");
53 9x if (auto ec = bind(ep))
54 2x detail::throw_system_error(ec, "local_stream_acceptor");
55 7x if (auto ec = listen(backlog))
56 5x detail::throw_system_error(ec, "local_stream_acceptor");
57 14x }
58
59 std::error_code
60 90x local_stream_acceptor::open() noexcept
61 {
62 90x if (is_open())
63 2x return {};
64 auto& svc =
65 88x static_cast<detail::local_stream_acceptor_service&>(h_.service());
66 88x auto ec = svc.open_acceptor_socket(
67 88x static_cast<local_stream_acceptor::implementation&>(*h_.get()), AF_UNIX,
68 SOCK_STREAM, 0);
69 88x return ec;
70 }
71
72 std::error_code
73 10x local_stream_acceptor::assign(native_handle_type fd) noexcept
74 {
75 auto& svc =
76 10x static_cast<detail::local_stream_acceptor_service&>(h_.service());
77 10x auto ec = svc.assign_socket(
78 10x static_cast<local_stream_acceptor::implementation&>(*h_.get()), fd);
79 10x return ec;
80 }
81
82 native_handle_type
83 12x local_stream_acceptor::native_handle() const noexcept
84 {
85 12x if (!is_open())
86 {
87 #if BOOST_COROSIO_HAS_IOCP
88 return static_cast<native_handle_type>(~0ull); // INVALID_SOCKET
89 #else
90 4x return -1;
91 #endif
92 }
93 8x return get().native_handle();
94 }
95
96 std::error_code
97 77x local_stream_acceptor::bind(
98 corosio::local_endpoint ep, bind_option opt) noexcept
99 {
100 77x if (!is_open())
101 2x return make_error_code(std::errc::bad_file_descriptor);
102
103 75x if (opt == bind_option::unlink_existing && !ep.empty() && !ep.is_abstract())
104 {
105 // Best-effort removal; missing file is fine.
106 4x auto p = ep.path();
107 char buf[local_endpoint::max_path_length + 1];
108 4x std::memcpy(buf, p.data(), p.size());
109 4x buf[p.size()] = '\0';
110 #if BOOST_COROSIO_POSIX
111 4x ::unlink(buf);
112 #else
113 ::DeleteFileA(buf);
114 #endif
115 }
116
117 auto& svc =
118 75x static_cast<detail::local_stream_acceptor_service&>(h_.service());
119 75x return svc.bind_acceptor(
120 150x static_cast<local_stream_acceptor::implementation&>(*h_.get()), ep);
121 }
122
123 std::error_code
124 62x local_stream_acceptor::listen(int backlog) noexcept
125 {
126 62x if (!is_open())
127 2x return make_error_code(std::errc::bad_file_descriptor);
128 auto& svc =
129 60x static_cast<detail::local_stream_acceptor_service&>(h_.service());
130 60x return svc.listen_acceptor(
131 60x static_cast<local_stream_acceptor::implementation&>(*h_.get()),
132 60x backlog);
133 }
134
135 void
136 123x local_stream_acceptor::close() noexcept
137 {
138 123x if (!is_open())
139 46x return;
140 77x h_.service().close(h_);
141 }
142
143 native_handle_type
144 12x local_stream_acceptor::release()
145 {
146 12x if (!is_open())
147 2x detail::throw_system_error(
148 2x make_error_code(std::errc::bad_file_descriptor),
149 "local_stream_acceptor::release");
150 10x return get().release_socket();
151 }
152
153 void
154 8x local_stream_acceptor::cancel() noexcept
155 {
156 8x if (!is_open())
157 2x return;
158 6x get().cancel();
159 }
160
161 local_endpoint
162 12x local_stream_acceptor::local_endpoint() const noexcept
163 {
164 12x if (!is_open())
165 2x return corosio::local_endpoint{};
166 10x return get().local_endpoint();
167 }
168
169 } // namespace boost::corosio
170