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[/
/ Copyright (c) 2003-2008 Christopher M. Kohlhoff (chris at kohlhoff dot com)
/
/ Distributed under the Boost Software License, Version 1.0. (See accompanying
/ file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
/]
[section:SocketAcceptorService Socket acceptor service requirements]
A socket acceptor service must meet the requirements for an [link
boost_asio.reference.IoObjectService I/O object service], as well as the
additional requirements listed below.
In the table below, `X` denotes a socket acceptor service class for protocol
[link boost_asio.reference.Protocol `Protocol`], `a` denotes a value of type
`X`, `b` denotes a value of type `X::implementation_type`, `p` denotes a value
of type `Protocol`, `n` denotes a value of type `X::native_type`, `e` denotes a
value of type `Protocol::endpoint`, `ec` denotes a value of type `error_code`,
`s` denotes a value meeting [link boost_asio.reference.SettableSocketOption
`SettableSocketOption`] requirements, `g` denotes a value meeting [link
boost_asio.reference.GettableSocketOption `GettableSocketOption`]
requirements, `i` denotes a value meeting [link
boost_asio.reference.IoControlCommand `IoControlCommand`] requirements, `k`
denotes a value of type `basic_socket<Protocol, SocketService>` where
`SocketService` is a type meeting [link boost_asio.reference.SocketService
socket service] requirements, `ah` denotes a value meeting [link
boost_asio.reference.AcceptHandler `AcceptHandler`] requirements, and `u`
and `v` denote identifiers.
[table SocketAcceptorService requirements
[[expression] [return type] [assertion/note\npre/post-condition]]
[
[`X::native_type`]
[]
[
The implementation-defined native representation of a socket acceptor.
Must satisfy the requirements of `CopyConstructible` types (C++ Std,
20.1.3), and the requirements of `Assignable` types (C++ Std, 23.1).
]
]
[
[`a.construct(b);`]
[]
[
From [link boost_asio.reference.IoObjectService IoObjectService]
requirements.\n
post: `!a.is_open(b)`.
]
]
[
[`a.destroy(b);`]
[]
[
From [link boost_asio.reference.IoObjectService IoObjectService]
requirements. Implicitly cancels asynchronous operations, as if by calling
`a.close(b, ec)`.
]
]
[
[``
a.open(b, p, ec);
``]
[`error_code`]
[
pre: `!a.is_open(b)`.\n
post: `!!ec || a.is_open(b)`.
]
]
[
[``
a.assign(b, p, n, ec);
``]
[`error_code`]
[
pre: `!a.is_open(b)`.\n
post: `!!ec || a.is_open(b)`.
]
]
[
[``
a.is_open(b);
``]
[`bool`]
[
]
]
[
[``
const X& u = a;
const X::implementation_type& v = b;
u.is_open(v);
``]
[`bool`]
[
]
]
[
[``
a.close(b, ec);
``]
[`error_code`]
[
If `a.is_open()` is true, causes any outstanding asynchronous operations
to complete as soon as possible. Handlers for cancelled operations shall
be passed the error code `error::operation_aborted`.\n
post: `!a.is_open(b)`.
]
]
[
[``
a.native(b);
``]
[`X::native_type`]
[
]
]
[
[``
a.cancel(b, ec);
``]
[`error_code`]
[
pre: `a.is_open(b)`.\n
Causes any outstanding asynchronous operations to complete as soon as
possible. Handlers for cancelled operations shall be passed the error
code `error::operation_aborted`.
]
]
[
[``
a.set_option(b, s, ec);
``]
[`error_code`]
[
pre: `a.is_open(b)`.
]
]
[
[``
a.get_option(b, g, ec);
``]
[`error_code`]
[
pre: `a.is_open(b)`.
]
]
[
[``
const X& u = a;
const X::implementation_type& v = b;
u.get_option(v, g, ec);
``]
[`error_code`]
[
pre: `a.is_open(b)`.
]
]
[
[``
a.io_control(b, i, ec);
``]
[`error_code`]
[
pre: `a.is_open(b)`.
]
]
[
[``
const typename Protocol::endpoint& u = e;
a.bind(b, u, ec);
``]
[`error_code`]
[
pre: `a.is_open(b)`.
]
]
[
[``
a.local_endpoint(b, ec);
``]
[`Protocol::endpoint`]
[
pre: `a.is_open(b)`.
]
]
[
[``
const X& u = a;
const X::implementation_type& v = b;
u.local_endpoint(v, ec);
``]
[`Protocol::endpoint`]
[
pre: `a.is_open(b)`.
]
]
[
[``
a.accept(b, k, &e, ec);
``]
[`error_code`]
[
pre: `a.is_open(b) && !k.is_open()`.\n
post: `k.is_open()`
]
]
[
[``
a.accept(b, k, 0, ec);
``]
[`error_code`]
[
pre: `a.is_open(b) && !k.is_open()`.\n
post: `k.is_open()`
]
]
[
[``
a.async_accept(b, k, &e, ah);
``]
[]
[
pre: `a.is_open(b) && !k.is_open()`.\n
Initiates an asynchronous accept operation that is performed via the
`io_service` object `a.io_service()` and behaves according to [link
boost_asio.reference.asynchronous_operations asynchronous operation]
requirements.\n\n
The program must ensure the objects `k` and `e` are valid until the
handler for the asynchronous operation is invoked.
]
]
[
[``
a.async_accept(b, k, 0, ah);
``]
[]
[
pre: `a.is_open(b) && !k.is_open()`.\n
Initiates an asynchronous accept operation that is performed via the
`io_service` object `a.io_service()` and behaves according to [link
boost_asio.reference.asynchronous_operations asynchronous operation]
requirements.\n\n
The program must ensure the object `k` is valid until the handler for the
asynchronous operation is invoked.
]
]
]
[endsect]
|
