293 lines
9.5 KiB
Plaintext
293 lines
9.5 KiB
Plaintext
|
#ifndef BOOST_THREAD_PTHREAD_THREAD_DATA_HPP
|
||
|
|
#define BOOST_THREAD_PTHREAD_THREAD_DATA_HPP
|
||
|
|
// 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)
|
||
|
|
// (C) Copyright 2007 Anthony Williams
|
||
|
|
// (C) Copyright 2011-2012 Vicente J. Botet Escriba
|
||
|
|
|
||
|
|
#include <boost/thread/detail/config.hpp>
|
||
|
|
#include <boost/thread/exceptions.hpp>
|
||
|
|
#include <boost/thread/lock_guard.hpp>
|
||
|
|
#include <boost/thread/lock_types.hpp>
|
||
|
|
#include <boost/thread/mutex.hpp>
|
||
|
|
#include <boost/thread/pthread/condition_variable_fwd.hpp>
|
||
|
|
|
||
|
|
#include <boost/shared_ptr.hpp>
|
||
|
|
#include <boost/enable_shared_from_this.hpp>
|
||
|
|
#include <boost/assert.hpp>
|
||
|
|
#ifdef BOOST_THREAD_USES_CHRONO
|
||
|
|
#include <boost/chrono/system_clocks.hpp>
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#include <map>
|
||
|
|
#include <vector>
|
||
|
|
#include <utility>
|
||
|
|
|
||
|
|
#if defined(__ANDROID__)
|
||
|
|
# ifndef PAGE_SIZE
|
||
|
|
# define PAGE_SIZE 4096
|
||
|
|
# endif
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#include <pthread.h>
|
||
|
|
#include <unistd.h>
|
||
|
|
|
||
|
|
#include <boost/config/abi_prefix.hpp>
|
||
|
|
|
||
|
|
namespace boost
|
||
|
|
{
|
||
|
|
class thread_attributes {
|
||
|
|
public:
|
||
|
|
thread_attributes() BOOST_NOEXCEPT {
|
||
|
|
int res = pthread_attr_init(&val_);
|
||
|
|
BOOST_VERIFY(!res && "pthread_attr_init failed");
|
||
|
|
}
|
||
|
|
~thread_attributes() {
|
||
|
|
int res = pthread_attr_destroy(&val_);
|
||
|
|
BOOST_VERIFY(!res && "pthread_attr_destroy failed");
|
||
|
|
}
|
||
|
|
// stack
|
||
|
|
void set_stack_size(std::size_t size) BOOST_NOEXCEPT {
|
||
|
|
if (size==0) return;
|
||
|
|
std::size_t page_size = getpagesize();
|
||
|
|
#ifdef PTHREAD_STACK_MIN
|
||
|
|
if (size<PTHREAD_STACK_MIN) size=PTHREAD_STACK_MIN;
|
||
|
|
#endif
|
||
|
|
size = ((size+page_size-1)/page_size)*page_size;
|
||
|
|
int res = pthread_attr_setstacksize(&val_, size);
|
||
|
|
BOOST_VERIFY(!res && "pthread_attr_setstacksize failed");
|
||
|
|
}
|
||
|
|
|
||
|
|
std::size_t get_stack_size() const BOOST_NOEXCEPT {
|
||
|
|
std::size_t size;
|
||
|
|
int res = pthread_attr_getstacksize(&val_, &size);
|
||
|
|
BOOST_VERIFY(!res && "pthread_attr_getstacksize failed");
|
||
|
|
return size;
|
||
|
|
}
|
||
|
|
#define BOOST_THREAD_DEFINES_THREAD_ATTRIBUTES_NATIVE_HANDLE
|
||
|
|
|
||
|
|
typedef pthread_attr_t native_handle_type;
|
||
|
|
native_handle_type* native_handle() BOOST_NOEXCEPT {
|
||
|
|
return &val_;
|
||
|
|
}
|
||
|
|
const native_handle_type* native_handle() const BOOST_NOEXCEPT {
|
||
|
|
return &val_;
|
||
|
|
}
|
||
|
|
|
||
|
|
private:
|
||
|
|
pthread_attr_t val_;
|
||
|
|
};
|
||
|
|
|
||
|
|
class thread;
|
||
|
|
|
||
|
|
namespace detail
|
||
|
|
{
|
||
|
|
struct shared_state_base;
|
||
|
|
struct tss_cleanup_function;
|
||
|
|
struct thread_exit_callback_node;
|
||
|
|
struct tss_data_node
|
||
|
|
{
|
||
|
|
boost::shared_ptr<boost::detail::tss_cleanup_function> func;
|
||
|
|
void* value;
|
||
|
|
|
||
|
|
tss_data_node(boost::shared_ptr<boost::detail::tss_cleanup_function> func_,
|
||
|
|
void* value_):
|
||
|
|
func(func_),value(value_)
|
||
|
|
{}
|
||
|
|
};
|
||
|
|
|
||
|
|
struct thread_data_base;
|
||
|
|
typedef boost::shared_ptr<thread_data_base> thread_data_ptr;
|
||
|
|
|
||
|
|
struct BOOST_THREAD_DECL thread_data_base:
|
||
|
|
enable_shared_from_this<thread_data_base>
|
||
|
|
{
|
||
|
|
thread_data_ptr self;
|
||
|
|
pthread_t thread_handle;
|
||
|
|
boost::mutex data_mutex;
|
||
|
|
boost::condition_variable done_condition;
|
||
|
|
boost::mutex sleep_mutex;
|
||
|
|
boost::condition_variable sleep_condition;
|
||
|
|
bool done;
|
||
|
|
bool join_started;
|
||
|
|
bool joined;
|
||
|
|
boost::detail::thread_exit_callback_node* thread_exit_callbacks;
|
||
|
|
std::map<void const*,boost::detail::tss_data_node> tss_data;
|
||
|
|
|
||
|
|
//#if defined BOOST_THREAD_PROVIDES_INTERRUPTIONS
|
||
|
|
// These data must be at the end so that the access to the other fields doesn't change
|
||
|
|
// when BOOST_THREAD_PROVIDES_INTERRUPTIONS is defined.
|
||
|
|
// Another option is to have them always
|
||
|
|
pthread_mutex_t* cond_mutex;
|
||
|
|
pthread_cond_t* current_cond;
|
||
|
|
//#endif
|
||
|
|
typedef std::vector<std::pair<condition_variable*, mutex*>
|
||
|
|
//, hidden_allocator<std::pair<condition_variable*, mutex*> >
|
||
|
|
> notify_list_t;
|
||
|
|
notify_list_t notify;
|
||
|
|
|
||
|
|
typedef std::vector<shared_ptr<shared_state_base> > async_states_t;
|
||
|
|
async_states_t async_states_;
|
||
|
|
|
||
|
|
//#if defined BOOST_THREAD_PROVIDES_INTERRUPTIONS
|
||
|
|
// These data must be at the end so that the access to the other fields doesn't change
|
||
|
|
// when BOOST_THREAD_PROVIDES_INTERRUPTIONS is defined.
|
||
|
|
// Another option is to have them always
|
||
|
|
bool interrupt_enabled;
|
||
|
|
bool interrupt_requested;
|
||
|
|
//#endif
|
||
|
|
thread_data_base():
|
||
|
|
thread_handle(0),
|
||
|
|
done(false),join_started(false),joined(false),
|
||
|
|
thread_exit_callbacks(0),
|
||
|
|
//#if defined BOOST_THREAD_PROVIDES_INTERRUPTIONS
|
||
|
|
cond_mutex(0),
|
||
|
|
current_cond(0),
|
||
|
|
//#endif
|
||
|
|
notify(),
|
||
|
|
async_states_()
|
||
|
|
//#if defined BOOST_THREAD_PROVIDES_INTERRUPTIONS
|
||
|
|
, interrupt_enabled(true)
|
||
|
|
, interrupt_requested(false)
|
||
|
|
//#endif
|
||
|
|
{}
|
||
|
|
virtual ~thread_data_base();
|
||
|
|
|
||
|
|
typedef pthread_t native_handle_type;
|
||
|
|
|
||
|
|
virtual void run()=0;
|
||
|
|
virtual void notify_all_at_thread_exit(condition_variable* cv, mutex* m)
|
||
|
|
{
|
||
|
|
notify.push_back(std::pair<condition_variable*, mutex*>(cv, m));
|
||
|
|
}
|
||
|
|
|
||
|
|
void make_ready_at_thread_exit(shared_ptr<shared_state_base> as)
|
||
|
|
{
|
||
|
|
async_states_.push_back(as);
|
||
|
|
}
|
||
|
|
|
||
|
|
};
|
||
|
|
|
||
|
|
BOOST_THREAD_DECL thread_data_base* get_current_thread_data();
|
||
|
|
|
||
|
|
#if defined BOOST_THREAD_PROVIDES_INTERRUPTIONS
|
||
|
|
class interruption_checker
|
||
|
|
{
|
||
|
|
thread_data_base* const thread_info;
|
||
|
|
pthread_mutex_t* m;
|
||
|
|
bool set;
|
||
|
|
|
||
|
|
void check_for_interruption()
|
||
|
|
{
|
||
|
|
#ifndef BOOST_NO_EXCEPTIONS
|
||
|
|
if(thread_info->interrupt_requested)
|
||
|
|
{
|
||
|
|
thread_info->interrupt_requested=false;
|
||
|
|
throw thread_interrupted(); // BOOST_NO_EXCEPTIONS protected
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
|
||
|
|
void operator=(interruption_checker&);
|
||
|
|
public:
|
||
|
|
explicit interruption_checker(pthread_mutex_t* cond_mutex,pthread_cond_t* cond):
|
||
|
|
thread_info(detail::get_current_thread_data()),m(cond_mutex),
|
||
|
|
set(thread_info && thread_info->interrupt_enabled)
|
||
|
|
{
|
||
|
|
if(set)
|
||
|
|
{
|
||
|
|
lock_guard<mutex> guard(thread_info->data_mutex);
|
||
|
|
check_for_interruption();
|
||
|
|
thread_info->cond_mutex=cond_mutex;
|
||
|
|
thread_info->current_cond=cond;
|
||
|
|
BOOST_VERIFY(!pthread_mutex_lock(m));
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
BOOST_VERIFY(!pthread_mutex_lock(m));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
~interruption_checker()
|
||
|
|
{
|
||
|
|
if(set)
|
||
|
|
{
|
||
|
|
BOOST_VERIFY(!pthread_mutex_unlock(m));
|
||
|
|
lock_guard<mutex> guard(thread_info->data_mutex);
|
||
|
|
thread_info->cond_mutex=NULL;
|
||
|
|
thread_info->current_cond=NULL;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
BOOST_VERIFY(!pthread_mutex_unlock(m));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
};
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
|
||
|
|
namespace this_thread
|
||
|
|
{
|
||
|
|
namespace hidden
|
||
|
|
{
|
||
|
|
void BOOST_THREAD_DECL sleep_for(const timespec& ts);
|
||
|
|
void BOOST_THREAD_DECL sleep_until(const timespec& ts);
|
||
|
|
}
|
||
|
|
|
||
|
|
#ifdef BOOST_THREAD_USES_CHRONO
|
||
|
|
#ifdef BOOST_THREAD_SLEEP_FOR_IS_STEADY
|
||
|
|
|
||
|
|
inline
|
||
|
|
void BOOST_SYMBOL_VISIBLE sleep_for(const chrono::nanoseconds& ns)
|
||
|
|
{
|
||
|
|
return boost::this_thread::hidden::sleep_for(boost::detail::to_timespec(ns));
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
#endif // BOOST_THREAD_USES_CHRONO
|
||
|
|
|
||
|
|
namespace no_interruption_point
|
||
|
|
{
|
||
|
|
namespace hidden
|
||
|
|
{
|
||
|
|
void BOOST_THREAD_DECL sleep_for(const timespec& ts);
|
||
|
|
void BOOST_THREAD_DECL sleep_until(const timespec& ts);
|
||
|
|
}
|
||
|
|
|
||
|
|
#ifdef BOOST_THREAD_USES_CHRONO
|
||
|
|
#ifdef BOOST_THREAD_SLEEP_FOR_IS_STEADY
|
||
|
|
|
||
|
|
inline
|
||
|
|
void BOOST_SYMBOL_VISIBLE sleep_for(const chrono::nanoseconds& ns)
|
||
|
|
{
|
||
|
|
return boost::this_thread::no_interruption_point::hidden::sleep_for(boost::detail::to_timespec(ns));
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
#endif // BOOST_THREAD_USES_CHRONO
|
||
|
|
|
||
|
|
} // no_interruption_point
|
||
|
|
|
||
|
|
void BOOST_THREAD_DECL yield() BOOST_NOEXCEPT;
|
||
|
|
|
||
|
|
#if defined BOOST_THREAD_USES_DATETIME
|
||
|
|
#ifdef __DECXXX
|
||
|
|
/// Workaround of DECCXX issue of incorrect template substitution
|
||
|
|
template<>
|
||
|
|
#endif
|
||
|
|
inline void sleep(system_time const& abs_time)
|
||
|
|
{
|
||
|
|
return boost::this_thread::hidden::sleep_until(boost::detail::to_timespec(abs_time));
|
||
|
|
}
|
||
|
|
|
||
|
|
template<typename TimeDuration>
|
||
|
|
inline BOOST_SYMBOL_VISIBLE void sleep(TimeDuration const& rel_time)
|
||
|
|
{
|
||
|
|
this_thread::sleep(get_system_time()+rel_time);
|
||
|
|
}
|
||
|
|
#endif // BOOST_THREAD_USES_DATETIME
|
||
|
|
} // this_thread
|
||
|
|
}
|
||
|
|
|
||
|
|
#include <boost/config/abi_suffix.hpp>
|
||
|
|
|
||
|
|
#endif
|