mirror of
https://github.com/matrix-construct/construct
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56 lines
1.3 KiB
C++
56 lines
1.3 KiB
C++
// Matrix Construct
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//
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// Copyright (C) Matrix Construct Developers, Authors & Contributors
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// Copyright (C) 2016-2018 Jason Volk <jason@zemos.net>
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//
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// Permission to use, copy, modify, and/or distribute this software for any
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// purpose with or without fee is hereby granted, provided that the above
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// copyright notice and this permission notice is present in all copies. The
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// full license for this software is available in the LICENSE file.
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#pragma once
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#define HAVE_IRCD_CTX_OLE_H
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/// Context OffLoad Engine (OLE).
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///
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/// This system allows moving a task off the main IRCd thread by passing a function to a
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/// worker thread for execution. The context on the main IRCd thread yields until the offload
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/// function has returned (or thrown).
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///
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namespace ircd::ctx::ole
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{
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struct init;
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struct opts;
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struct offload;
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}
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namespace ircd::ctx
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{
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using ole::offload;
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}
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struct ircd::ctx::offload
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{
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using function = std::function<void ()>;
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offload(const opts &, const function &);
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offload(const function &);
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};
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struct ircd::ctx::ole::opts
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{
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/// Optionally give this offload task a name for any tasklist.
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string_view name;
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/// The function will be executed on each thread.
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size_t concurrency {1};
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/// Queuing priority; in the form of a nice value.
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int8_t prio {0};
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};
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struct ircd::ctx::ole::init
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{
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init();
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~init() noexcept;
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};
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