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-rw-r--r--boost/fiber/unbounded_channel.hpp272
1 files changed, 0 insertions, 272 deletions
diff --git a/boost/fiber/unbounded_channel.hpp b/boost/fiber/unbounded_channel.hpp
deleted file mode 100644
index 6de5a6f5f0..0000000000
--- a/boost/fiber/unbounded_channel.hpp
+++ /dev/null
@@ -1,272 +0,0 @@
-
-// Copyright Oliver Kowalke 2013.
-// 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 BOOST_FIBERS_UNBOUNDED_CHANNEL_H
-#define BOOST_FIBERS_UNBOUNDED_CHANNEL_H
-
-#warn "template unbounded_channel is deprecated"
-
-#include <atomic>
-#include <algorithm>
-#include <chrono>
-#include <cstddef>
-#include <deque>
-#include <memory>
-#include <mutex>
-#include <utility>
-
-#include <boost/config.hpp>
-#include <boost/intrusive_ptr.hpp>
-
-#include <boost/fiber/detail/config.hpp>
-#include <boost/fiber/channel_op_status.hpp>
-#include <boost/fiber/condition_variable.hpp>
-#include <boost/fiber/detail/convert.hpp>
-#include <boost/fiber/exceptions.hpp>
-#include <boost/fiber/mutex.hpp>
-#include <boost/fiber/operations.hpp>
-
-#ifdef BOOST_HAS_ABI_HEADERS
-# include BOOST_ABI_PREFIX
-#endif
-
-namespace boost {
-namespace fibers {
-
-template< typename T,
- typename Allocator = std::allocator< T >
->
-class unbounded_channel {
-public:
- typedef T value_type;
-
-private:
- struct node {
- typedef intrusive_ptr< node > ptr_t;
- typedef typename std::allocator_traits< Allocator >::template rebind_alloc<
- node
- > allocator_t;
- typedef std::allocator_traits< allocator_t > allocator_traits_t;
-
-#if ! defined(BOOST_FIBERS_NO_ATOMICS)
- std::atomic< std::size_t > use_count{ 0 };
-#else
- std::size_t use_count{ 0 };
-#endif
- allocator_t alloc;
- T va;
- ptr_t nxt{};
-
- node( T const& t, allocator_t const& alloc_) noexcept :
- alloc{ alloc_ },
- va{ t } {
- }
-
- node( T && t, allocator_t const& alloc_) noexcept :
- alloc{ alloc_ },
- va{ std::move( t) } {
- }
-
- friend
- void intrusive_ptr_add_ref( node * p) noexcept {
- ++p->use_count;
- }
-
- friend
- void intrusive_ptr_release( node * p) noexcept {
- if ( 0 == --p->use_count) {
- allocator_t alloc( p->alloc);
- allocator_traits_t::destroy( alloc, p);
- allocator_traits_t::deallocate( alloc, p, 1);
- }
- }
- };
-
- using ptr_t = typename node::ptr_t;
- using allocator_t = typename node::allocator_t;
- using allocator_traits_t = typename node::allocator_traits_t;
-
- enum class queue_status {
- open = 0,
- closed
- };
-
- allocator_t alloc_;
- queue_status state_{ queue_status::open };
- ptr_t head_{};
- ptr_t * tail_;
- mutable mutex mtx_{};
- condition_variable not_empty_cond_{};
-
- bool is_closed_() const noexcept {
- return queue_status::closed == state_;
- }
-
- void close_( std::unique_lock< mutex > & lk) noexcept {
- state_ = queue_status::closed;
- lk.unlock();
- not_empty_cond_.notify_all();
- }
-
- bool is_empty_() const noexcept {
- return ! head_;
- }
-
- channel_op_status push_( ptr_t new_node,
- std::unique_lock< mutex > & lk) noexcept {
- if ( is_closed_() ) {
- return channel_op_status::closed;
- }
- return push_and_notify_( new_node, lk);
- }
-
- channel_op_status push_and_notify_( ptr_t new_node,
- std::unique_lock< mutex > & lk) noexcept {
- push_tail_( new_node);
- lk.unlock();
- not_empty_cond_.notify_one();
- return channel_op_status::success;
- }
-
- void push_tail_( ptr_t new_node) noexcept {
- * tail_ = new_node;
- tail_ = & new_node->nxt;
- }
-
- value_type value_pop_( std::unique_lock< mutex > & lk) {
- BOOST_ASSERT( ! is_empty_() );
- auto old_head = pop_head_();
- return std::move( old_head->va);
- }
-
- ptr_t pop_head_() noexcept {
- auto old_head = head_;
- head_ = old_head->nxt;
- if ( ! head_) {
- tail_ = & head_;
- }
- old_head->nxt.reset();
- return old_head;
- }
-
-public:
- explicit unbounded_channel( Allocator const& alloc = Allocator() ) noexcept :
- alloc_{ alloc },
- tail_{ & head_ } {
- }
-
- unbounded_channel( unbounded_channel const&) = delete;
- unbounded_channel & operator=( unbounded_channel const&) = delete;
-
- void close() noexcept {
- std::unique_lock< mutex > lk( mtx_);
- close_( lk);
- }
-
- channel_op_status push( value_type const& va) {
- typename allocator_traits_t::pointer ptr{
- allocator_traits_t::allocate( alloc_, 1) };
- try {
- allocator_traits_t::construct( alloc_, ptr, va, alloc_);
- } catch (...) {
- allocator_traits_t::deallocate( alloc_, ptr, 1);
- throw;
- }
- std::unique_lock< mutex > lk( mtx_);
- return push_( { detail::convert( ptr) }, lk);
- }
-
- channel_op_status push( value_type && va) {
- typename allocator_traits_t::pointer ptr{
- allocator_traits_t::allocate( alloc_, 1) };
- try {
- allocator_traits_t::construct(
- alloc_, ptr, std::move( va), alloc_);
- } catch (...) {
- allocator_traits_t::deallocate( alloc_, ptr, 1);
- throw;
- }
- std::unique_lock< mutex > lk( mtx_);
- return push_( { detail::convert( ptr) }, lk);
- }
-
- channel_op_status pop( value_type & va) {
- std::unique_lock< mutex > lk( mtx_);
- not_empty_cond_.wait( lk,
- [this](){
- return is_closed_() || ! is_empty_();
- });
- if ( is_closed_() && is_empty_() ) {
- return channel_op_status::closed;
- }
- va = value_pop_( lk);
- return channel_op_status::success;
- }
-
- value_type value_pop() {
- std::unique_lock< mutex > lk( mtx_);
- not_empty_cond_.wait( lk,
- [this](){
- return is_closed_() || ! is_empty_();
- });
- if ( is_closed_() && is_empty_() ) {
- throw fiber_error(
- std::make_error_code( std::errc::operation_not_permitted),
- "boost fiber: queue is closed");
- }
- return value_pop_( lk);
- }
-
- channel_op_status try_pop( value_type & va) {
- std::unique_lock< mutex > lk( mtx_);
- if ( is_closed_() && is_empty_() ) {
- // let other fibers run
- lk.unlock();
- this_fiber::yield();
- return channel_op_status::closed;
- }
- if ( is_empty_() ) {
- // let other fibers run
- lk.unlock();
- this_fiber::yield();
- return channel_op_status::empty;
- }
- va = value_pop_( lk);
- return channel_op_status::success;
- }
-
- template< typename Rep, typename Period >
- channel_op_status pop_wait_for( value_type & va,
- std::chrono::duration< Rep, Period > const& timeout_duration) {
- return pop_wait_until( va, std::chrono::steady_clock::now() + timeout_duration);
- }
-
- template< typename Clock, typename Duration >
- channel_op_status pop_wait_until( value_type & va,
- std::chrono::time_point< Clock, Duration > const& timeout_time) {
- std::unique_lock< mutex > lk( mtx_);
- if ( ! not_empty_cond_.wait_until( lk, timeout_time,
- [this](){
- return is_closed_() || ! is_empty_();
- })) {
- return channel_op_status::timeout;
- }
- if ( is_closed_() && is_empty_() ) {
- return channel_op_status::closed;
- }
- va = value_pop_( lk);
- return channel_op_status::success;
- }
-};
-
-}}
-
-#ifdef BOOST_HAS_ABI_HEADERS
-# include BOOST_ABI_SUFFIX
-#endif
-
-#endif // BOOST_FIBERS_UNBOUNDED_CHANNEL_H
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