123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138 |
- // 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
|