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author | Matthias P. Braendli <matthias.braendli@mpb.li> | 2019-10-07 04:52:50 +0200 |
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committer | Matthias P. Braendli <matthias.braendli@mpb.li> | 2019-10-07 04:52:50 +0200 |
commit | 0aa6201a490bfabc0ae021ceb9f1fb0f46727c5d (patch) | |
tree | a71d934d8151dd43e7c16555fef17fd749c5da70 /lib/asio/detail/impl/strand_executor_service.ipp | |
parent | 558d74bffd9f069955af52c0b308a1d6169bcff0 (diff) | |
parent | 0330221d51421caa110b8c5dcb567cc3d0620eb9 (diff) | |
download | dabmod-0aa6201a490bfabc0ae021ceb9f1fb0f46727c5d.tar.gz dabmod-0aa6201a490bfabc0ae021ceb9f1fb0f46727c5d.tar.bz2 dabmod-0aa6201a490bfabc0ae021ceb9f1fb0f46727c5d.zip |
Merge lime output into next branch
Diffstat (limited to 'lib/asio/detail/impl/strand_executor_service.ipp')
-rw-r--r-- | lib/asio/detail/impl/strand_executor_service.ipp | 134 |
1 files changed, 0 insertions, 134 deletions
diff --git a/lib/asio/detail/impl/strand_executor_service.ipp b/lib/asio/detail/impl/strand_executor_service.ipp deleted file mode 100644 index 365652e..0000000 --- a/lib/asio/detail/impl/strand_executor_service.ipp +++ /dev/null @@ -1,134 +0,0 @@ -// -// detail/impl/strand_executor_service.ipp -// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ -// -// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com) -// -// 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) -// - -#ifndef ASIO_DETAIL_IMPL_STRAND_EXECUTOR_SERVICE_IPP -#define ASIO_DETAIL_IMPL_STRAND_EXECUTOR_SERVICE_IPP - -#if defined(_MSC_VER) && (_MSC_VER >= 1200) -# pragma once -#endif // defined(_MSC_VER) && (_MSC_VER >= 1200) - -#include "asio/detail/config.hpp" -#include "asio/detail/strand_executor_service.hpp" - -#include "asio/detail/push_options.hpp" - -namespace asio { -namespace detail { - -strand_executor_service::strand_executor_service(execution_context& ctx) - : execution_context_service_base<strand_executor_service>(ctx), - mutex_(), - salt_(0), - impl_list_(0) -{ -} - -void strand_executor_service::shutdown() -{ - op_queue<scheduler_operation> ops; - - asio::detail::mutex::scoped_lock lock(mutex_); - - strand_impl* impl = impl_list_; - while (impl) - { - impl->mutex_->lock(); - impl->shutdown_ = true; - ops.push(impl->waiting_queue_); - ops.push(impl->ready_queue_); - impl->mutex_->unlock(); - impl = impl->next_; - } -} - -strand_executor_service::implementation_type -strand_executor_service::create_implementation() -{ - implementation_type new_impl(new strand_impl); - new_impl->locked_ = false; - new_impl->shutdown_ = false; - - asio::detail::mutex::scoped_lock lock(mutex_); - - // Select a mutex from the pool of shared mutexes. - std::size_t salt = salt_++; - std::size_t mutex_index = reinterpret_cast<std::size_t>(new_impl.get()); - mutex_index += (reinterpret_cast<std::size_t>(new_impl.get()) >> 3); - mutex_index ^= salt + 0x9e3779b9 + (mutex_index << 6) + (mutex_index >> 2); - mutex_index = mutex_index % num_mutexes; - if (!mutexes_[mutex_index].get()) - mutexes_[mutex_index].reset(new mutex); - new_impl->mutex_ = mutexes_[mutex_index].get(); - - // Insert implementation into linked list of all implementations. - new_impl->next_ = impl_list_; - new_impl->prev_ = 0; - if (impl_list_) - impl_list_->prev_ = new_impl.get(); - impl_list_ = new_impl.get(); - new_impl->service_ = this; - - return new_impl; -} - -strand_executor_service::strand_impl::~strand_impl() -{ - asio::detail::mutex::scoped_lock lock(service_->mutex_); - - // Remove implementation from linked list of all implementations. - if (service_->impl_list_ == this) - service_->impl_list_ = next_; - if (prev_) - prev_->next_ = next_; - if (next_) - next_->prev_= prev_; -} - -bool strand_executor_service::enqueue(const implementation_type& impl, - scheduler_operation* op) -{ - impl->mutex_->lock(); - if (impl->shutdown_) - { - impl->mutex_->unlock(); - op->destroy(); - return false; - } - else if (impl->locked_) - { - // Some other function already holds the strand lock. Enqueue for later. - impl->waiting_queue_.push(op); - impl->mutex_->unlock(); - return false; - } - else - { - // The function is acquiring the strand lock and so is responsible for - // scheduling the strand. - impl->locked_ = true; - impl->mutex_->unlock(); - impl->ready_queue_.push(op); - return true; - } -} - -bool strand_executor_service::running_in_this_thread( - const implementation_type& impl) -{ - return !!call_stack<strand_impl>::contains(impl.get()); -} - -} // namespace detail -} // namespace asio - -#include "asio/detail/pop_options.hpp" - -#endif // ASIO_DETAIL_IMPL_STRAND_EXECUTOR_SERVICE_IPP |