mirror of
https://github.com/matrix-construct/construct
synced 2024-10-01 05:08:59 +02:00
116 lines
2.6 KiB
C++
116 lines
2.6 KiB
C++
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/*
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* Copyright (C) 2016 Charybdis Development Team
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* Copyright (C) 2016 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.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <ircd/ctx_ctx.h>
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using namespace ircd;
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/******************************************************************************
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* ctx.h
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*/
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__thread ctx::ctx *ctx::current;
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ircd::ctx::context::context(const size_t &stack_size,
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const function &func)
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:c{std::make_unique<ctx>(stack_size)}
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{
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static const boost::coroutines::attributes attrs
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{
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stack_size,
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boost::coroutines::stack_unwind
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};
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const auto bound(std::bind(&ctx::operator(), c.get(), ph::_1, func));
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boost::asio::spawn(c->strand, bound, attrs);
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}
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ircd::ctx::context::context(const function &func)
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:context
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{
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DEFAULT_STACK_SIZE,
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func
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}
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{
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}
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ircd::ctx::context::~context()
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noexcept
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{
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join();
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}
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void
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ircd::ctx::context::join()
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{
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}
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ircd::ctx::context &
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ircd::ctx::context::swap(context &other)
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noexcept
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{
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std::swap(c, other.c);
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return *this;
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}
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ircd::ctx::ctx *
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ircd::ctx::context::detach()
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{
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return c.release();
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}
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void
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ircd::ctx::swap(context &a, context &b)
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noexcept
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{
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a.swap(b);
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}
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/******************************************************************************
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* ctx_ctx.h
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*/
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ctx::ctx::ctx(const size_t &stack_size,
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boost::asio::io_service *const &ios)
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:strand{*ios}
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,alarm{*ios}
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,stack_size{stack_size}
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,stack_base{nullptr}
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,yc{nullptr}
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{
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}
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ctx::ctx::~ctx()
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noexcept
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{
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}
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void
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ctx::ctx::operator()(boost::asio::yield_context yc,
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const std::function<void ()> func)
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{
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this->stack_base = reinterpret_cast<const uint8_t *>(__builtin_frame_address(0));
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this->yc = &yc;
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ircd::ctx::current = this;
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if(likely(bool(func)))
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func();
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}
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