dbf9e800
 Hu Chunming
提交_GLIBCXX_USE_CX...
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#ifndef BOOST_THREAD_TSS_HPP
#define BOOST_THREAD_TSS_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 2007-8 Anthony Williams
#include <boost/thread/detail/config.hpp>
#include <boost/type_traits/add_reference.hpp>
#include <boost/config/abi_prefix.hpp>
namespace boost
{
namespace detail
{
namespace thread
{
typedef void(*cleanup_func_t)(void*);
typedef void(*cleanup_caller_t)(cleanup_func_t, void*);
}
BOOST_THREAD_DECL void set_tss_data(void const* key,detail::thread::cleanup_caller_t caller,detail::thread::cleanup_func_t func,void* tss_data,bool cleanup_existing);
BOOST_THREAD_DECL void* get_tss_data(void const* key);
}
template <typename T>
class thread_specific_ptr
{
private:
thread_specific_ptr(thread_specific_ptr&);
thread_specific_ptr& operator=(thread_specific_ptr&);
typedef void(*original_cleanup_func_t)(T*);
static void default_deleter(T* data)
{
delete data;
}
static void cleanup_caller(detail::thread::cleanup_func_t cleanup_function,void* data)
{
reinterpret_cast<original_cleanup_func_t>(cleanup_function)(static_cast<T*>(data));
}
detail::thread::cleanup_func_t cleanup;
public:
typedef T element_type;
thread_specific_ptr():
cleanup(reinterpret_cast<detail::thread::cleanup_func_t>(&default_deleter))
{}
explicit thread_specific_ptr(void (*func_)(T*))
: cleanup(reinterpret_cast<detail::thread::cleanup_func_t>(func_))
{}
~thread_specific_ptr()
{
detail::set_tss_data(this,0,0,0,true);
}
T* get() const
{
return static_cast<T*>(detail::get_tss_data(this));
}
T* operator->() const
{
return get();
}
typename add_reference<T>::type operator*() const
{
return *get();
}
T* release()
{
T* const temp=get();
detail::set_tss_data(this,0,0,0,false);
return temp;
}
void reset(T* new_value=0)
{
T* const current_value=get();
if(current_value!=new_value)
{
detail::set_tss_data(this,&cleanup_caller,cleanup,new_value,true);
}
}
};
}
#include <boost/config/abi_suffix.hpp>
#endif
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