287 lines
8.8 KiB
C++
287 lines
8.8 KiB
C++
#ifndef BOOST_THREAD_PTHREAD_THREAD_DATA_HPP
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#define BOOST_THREAD_PTHREAD_THREAD_DATA_HPP
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// Distributed under the Boost Software License, Version 1.0. (See
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// accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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// (C) Copyright 2008 Anthony Williams
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// (C) Copyright 2011-2012 Vicente J. Botet Escriba
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#include <boost/thread/detail/config.hpp>
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#include <boost/thread/thread_time.hpp>
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#include <boost/thread/win32/thread_primitives.hpp>
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#include <boost/thread/win32/thread_heap_alloc.hpp>
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#include <boost/intrusive_ptr.hpp>
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#ifdef BOOST_THREAD_USES_CHRONO
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#include <boost/chrono/system_clocks.hpp>
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#endif
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#include <map>
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#include <vector>
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#include <utility>
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#include <boost/config/abi_prefix.hpp>
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#ifdef BOOST_MSVC
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#pragma warning(push)
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#pragma warning(disable:4251)
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#endif
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namespace boost
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{
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class condition_variable;
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class mutex;
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class thread_attributes {
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public:
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thread_attributes() BOOST_NOEXCEPT {
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val_.stack_size = 0;
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//val_.lpThreadAttributes=0;
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}
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~thread_attributes() {
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}
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// stack size
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void set_stack_size(std::size_t size) BOOST_NOEXCEPT {
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val_.stack_size = size;
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}
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std::size_t get_stack_size() const BOOST_NOEXCEPT {
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return val_.stack_size;
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}
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//void set_security(LPSECURITY_ATTRIBUTES lpThreadAttributes)
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//{
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// val_.lpThreadAttributes=lpThreadAttributes;
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//}
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//LPSECURITY_ATTRIBUTES get_security()
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//{
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// return val_.lpThreadAttributes;
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//}
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struct win_attrs {
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std::size_t stack_size;
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//LPSECURITY_ATTRIBUTES lpThreadAttributes;
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};
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typedef win_attrs native_handle_type;
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native_handle_type* native_handle() {return &val_;}
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const native_handle_type* native_handle() const {return &val_;}
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private:
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win_attrs val_;
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};
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namespace detail
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{
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struct future_object_base;
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struct tss_cleanup_function;
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struct thread_exit_callback_node;
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struct tss_data_node
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{
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boost::shared_ptr<boost::detail::tss_cleanup_function> func;
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void* value;
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tss_data_node(boost::shared_ptr<boost::detail::tss_cleanup_function> func_,
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void* value_):
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func(func_),value(value_)
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{}
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};
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struct thread_data_base;
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void intrusive_ptr_add_ref(thread_data_base * p);
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void intrusive_ptr_release(thread_data_base * p);
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struct BOOST_THREAD_DECL thread_data_base
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{
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long count;
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detail::win32::handle_manager thread_handle;
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boost::detail::thread_exit_callback_node* thread_exit_callbacks;
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std::map<void const*,boost::detail::tss_data_node> tss_data;
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unsigned id;
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typedef std::vector<std::pair<condition_variable*, mutex*>
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//, hidden_allocator<std::pair<condition_variable*, mutex*> >
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> notify_list_t;
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notify_list_t notify;
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typedef std::vector<shared_ptr<future_object_base> > async_states_t;
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async_states_t async_states_;
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//#if defined BOOST_THREAD_PROVIDES_INTERRUPTIONS
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// These data must be at the end so that the access to the other fields doesn't change
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// when BOOST_THREAD_PROVIDES_INTERRUPTIONS is defined
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// Another option is to have them always
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detail::win32::handle_manager interruption_handle;
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bool interruption_enabled;
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//#endif
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thread_data_base():
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count(0),thread_handle(detail::win32::invalid_handle_value),
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thread_exit_callbacks(0),tss_data(),
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id(0),
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notify(),
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async_states_()
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//#if defined BOOST_THREAD_PROVIDES_INTERRUPTIONS
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, interruption_handle(create_anonymous_event(detail::win32::manual_reset_event,detail::win32::event_initially_reset))
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, interruption_enabled(true)
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//#endif
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{}
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virtual ~thread_data_base();
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friend void intrusive_ptr_add_ref(thread_data_base * p)
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{
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BOOST_INTERLOCKED_INCREMENT(&p->count);
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}
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friend void intrusive_ptr_release(thread_data_base * p)
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{
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if(!BOOST_INTERLOCKED_DECREMENT(&p->count))
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{
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detail::heap_delete(p);
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}
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}
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#if defined BOOST_THREAD_PROVIDES_INTERRUPTIONS
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void interrupt()
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{
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BOOST_VERIFY(detail::win32::SetEvent(interruption_handle)!=0);
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}
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#endif
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typedef detail::win32::handle native_handle_type;
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virtual void run()=0;
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void notify_all_at_thread_exit(condition_variable* cv, mutex* m)
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{
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notify.push_back(std::pair<condition_variable*, mutex*>(cv, m));
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}
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void make_ready_at_thread_exit(shared_ptr<future_object_base> as)
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{
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async_states_.push_back(as);
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}
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};
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BOOST_THREAD_DECL thread_data_base* get_current_thread_data();
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typedef boost::intrusive_ptr<detail::thread_data_base> thread_data_ptr;
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struct BOOST_SYMBOL_VISIBLE timeout
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{
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unsigned long start;
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uintmax_t milliseconds;
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bool relative;
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boost::system_time abs_time;
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static unsigned long const max_non_infinite_wait=0xfffffffe;
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timeout(uintmax_t milliseconds_):
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start(win32::GetTickCount()),
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milliseconds(milliseconds_),
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relative(true),
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abs_time(boost::get_system_time())
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{}
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timeout(boost::system_time const& abs_time_):
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start(win32::GetTickCount()),
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milliseconds(0),
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relative(false),
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abs_time(abs_time_)
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{}
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struct BOOST_SYMBOL_VISIBLE remaining_time
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{
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bool more;
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unsigned long milliseconds;
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remaining_time(uintmax_t remaining):
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more(remaining>max_non_infinite_wait),
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milliseconds(more?max_non_infinite_wait:(unsigned long)remaining)
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{}
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};
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remaining_time remaining_milliseconds() const
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{
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if(is_sentinel())
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{
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return remaining_time(win32::infinite);
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}
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else if(relative)
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{
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unsigned long const now=win32::GetTickCount();
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unsigned long const elapsed=now-start;
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return remaining_time((elapsed<milliseconds)?(milliseconds-elapsed):0);
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}
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else
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{
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system_time const now=get_system_time();
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if(abs_time<=now)
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{
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return remaining_time(0);
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}
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return remaining_time((abs_time-now).total_milliseconds()+1);
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}
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}
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bool is_sentinel() const
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{
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return milliseconds==~uintmax_t(0);
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}
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static timeout sentinel()
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{
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return timeout(sentinel_type());
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}
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private:
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struct sentinel_type
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{};
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explicit timeout(sentinel_type):
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start(0),milliseconds(~uintmax_t(0)),relative(true)
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{}
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};
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inline uintmax_t pin_to_zero(intmax_t value)
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{
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return (value<0)?0u:(uintmax_t)value;
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}
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}
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namespace this_thread
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{
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void BOOST_THREAD_DECL yield() BOOST_NOEXCEPT;
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bool BOOST_THREAD_DECL interruptible_wait(detail::win32::handle handle_to_wait_for,detail::timeout target_time);
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inline void interruptible_wait(uintmax_t milliseconds)
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{
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interruptible_wait(detail::win32::invalid_handle_value,milliseconds);
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}
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inline BOOST_SYMBOL_VISIBLE void interruptible_wait(system_time const& abs_time)
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{
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interruptible_wait(detail::win32::invalid_handle_value,abs_time);
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}
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template<typename TimeDuration>
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inline BOOST_SYMBOL_VISIBLE void sleep(TimeDuration const& rel_time)
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{
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interruptible_wait(detail::pin_to_zero(rel_time.total_milliseconds()));
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}
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inline BOOST_SYMBOL_VISIBLE void sleep(system_time const& abs_time)
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{
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interruptible_wait(abs_time);
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}
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#ifdef BOOST_THREAD_USES_CHRONO
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inline void BOOST_SYMBOL_VISIBLE sleep_for(const chrono::nanoseconds& ns)
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{
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interruptible_wait(chrono::duration_cast<chrono::milliseconds>(ns).count());
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}
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#endif
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}
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}
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#ifdef BOOST_MSVC
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#pragma warning(pop)
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#endif
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#include <boost/config/abi_suffix.hpp>
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#endif
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