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externals: Update boost to 1.72 and add Boost Context

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Fernando Sahmkow 2020-02-10 12:31:57 -04:00
parent 5e8300b76a
commit 77abe07b3b
618 changed files with 96299 additions and 14263 deletions
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138
boost/thread/executors/executor_adaptor.hpp Normal file
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// Copyright (C) 2013,2014 Vicente J. Botet Escriba
//
// 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)
//
// 2013/09 Vicente J. Botet Escriba
// Adapt to boost from CCIA C++11 implementation
#ifndef BOOST_THREAD_EXECUTORS_EXECUTOR_ADAPTOR_HPP
#define BOOST_THREAD_EXECUTORS_EXECUTOR_ADAPTOR_HPP
#include <boost/thread/detail/config.hpp>
#if defined BOOST_THREAD_PROVIDES_FUTURE_CONTINUATION && defined BOOST_THREAD_PROVIDES_EXECUTORS && defined BOOST_THREAD_USES_MOVE
#include <boost/thread/executors/executor.hpp>
#include <boost/config/abi_prefix.hpp>
namespace boost
{
namespace executors
{
/**
* Polymorphic adaptor of a model of Executor to an executor.
*/
template <typename Executor>
class executor_adaptor : public executor
{
Executor ex;
public:
/// type-erasure to store the works to do
typedef executor::work work;
/// executor is not copyable.
BOOST_THREAD_NO_COPYABLE(executor_adaptor)
/**
* executor_adaptor constructor
*/
#if ! defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES)
template <typename ...Args>
executor_adaptor(BOOST_THREAD_RV_REF(Args) ... args) : ex(boost::forward<Args>(args)...) {}
#else
/**
* executor_adaptor constructor
*/
executor_adaptor() : ex() {}
template <typename A1>
executor_adaptor(
BOOST_THREAD_FWD_REF(A1) a1
) :
ex(
boost::forward<A1>(a1)
) {}
template <typename A1, typename A2>
executor_adaptor(
BOOST_THREAD_FWD_REF(A1) a1,
BOOST_THREAD_FWD_REF(A2) a2
) :
ex(
boost::forward<A1>(a1),
boost::forward<A2>(a2)
) {}
template <typename A1, typename A2, typename A3>
executor_adaptor(
BOOST_THREAD_FWD_REF(A1) a1,
BOOST_THREAD_FWD_REF(A2) a2,
BOOST_THREAD_FWD_REF(A3) a3
) :
ex(
boost::forward<A1>(a1),
boost::forward<A2>(a2),
boost::forward<A3>(a3)
) {}
#endif
Executor& underlying_executor() { return ex; }
/**
* \b Effects: close the \c executor for submissions.
* The worker threads will work until there is no more closures to run.
*/
void close() { ex.close(); }
/**
* \b Returns: whether the pool is closed for submissions.
*/
bool closed() { return ex.closed(); }
/**
* \b Effects: The specified closure will be scheduled for execution at some point in the future.
* If invoked closure throws an exception the executor will call std::terminate, as is the case with threads.
*
* \b Synchronization: completion of closure on a particular thread happens before destruction of thread's thread local variables.
*
* \b Throws: \c sync_queue_is_closed if the thread pool is closed.
* Whatever exception that can be throw while storing the closure.
*/
void submit(BOOST_THREAD_RV_REF(work) closure) {
return ex.submit(boost::move(closure));
}
#if defined(BOOST_NO_CXX11_RVALUE_REFERENCES)
template <typename Closure>
void submit(Closure & closure)
{
submit(work(closure));
}
#endif
void submit(void (*closure)())
{
submit(work(closure));
}
template <typename Closure>
void submit(BOOST_THREAD_FWD_REF(Closure) closure)
{
//submit(work(boost::forward<Closure>(closure)));
work w((boost::forward<Closure>(closure)));
submit(boost::move(w));
}
/**
* Effects: try to execute one task.
* Returns: whether a task has been executed.
* Throws: whatever the current task constructor throws or the task() throws.
*/
bool try_executing_one() { return ex.try_executing_one(); }
};
}
using executors::executor_adaptor;
}
#include <boost/config/abi_suffix.hpp>
#endif
#endif