mirror of https://gitee.com/bigwinds/arangodb
47 lines
1.5 KiB
Plaintext
47 lines
1.5 KiB
Plaintext
[/
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/ Copyright (c) 2003-2016 Christopher M. Kohlhoff (chris at kohlhoff dot com)
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/
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/ Distributed under the Boost Software License, Version 1.0. (See accompanying
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/ file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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/]
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[section:ObjectHandleService Object handle service requirements]
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An object handle service must meet the requirements for a [link
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boost_asio.reference.HandleService handle service], as well as the additional
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requirements listed below.
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In the table below, `X` denotes an object handle service class, `a` denotes a
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value of type `X`, `b` denotes a value of type `X::implementation_type`, `ec`
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denotes a value of type `error_code`, and `wh` denotes a value meeting [link
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boost_asio.reference.WaitHandler `WaitHandler`] requirements.
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[table ObjectHandleService requirements
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[[expression] [return type] [assertion/note\npre/post-condition]]
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[
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[`a.wait(b, ec);`]
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[`error_code`]
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[
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pre: `a.is_open(b)`.\n
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\n
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Synchronously waits for the object represented by handle `b` to become
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signalled.
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]
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]
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[
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[`a.async_wait(b, wh);`]
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[`void`]
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[
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pre: `a.is_open(b)`.\n
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\n
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Initiates an asynchronous operation to wait for the object represented by
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handle `b` to become signalled. The operation is performed via the
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`io_service` object `a.get_io_service()` and behaves according to [link
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boost_asio.reference.asynchronous_operations asynchronous operation]
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requirements.
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]
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]
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]
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[endsect]
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