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author | hiddenpath <hiddenpath@yandex-team.com> | 2024-02-21 23:16:42 +0300 |
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committer | hiddenpath <hiddenpath@yandex-team.com> | 2024-02-21 23:33:25 +0300 |
commit | 9052eb5cc304b8da8885fc4e3364ebddc16945f3 (patch) | |
tree | 3c252f6161dd0745c7732d74c9304c000645ab47 /contrib/libs/cxxsupp/libcxx/include/thread | |
parent | f5eb715f103692e7c7536e13bef3f281fd78e5e7 (diff) | |
download | ydb-9052eb5cc304b8da8885fc4e3364ebddc16945f3.tar.gz |
Update libcxx to llvmorg-17.0.6
Update libcxx to llvmorg-17.0.6
c871ef572c71b4fef22d4a9e65bcebc57e625aea
Diffstat (limited to 'contrib/libs/cxxsupp/libcxx/include/thread')
-rw-r--r-- | contrib/libs/cxxsupp/libcxx/include/thread | 323 |
1 files changed, 16 insertions, 307 deletions
diff --git a/contrib/libs/cxxsupp/libcxx/include/thread b/contrib/libs/cxxsupp/libcxx/include/thread index 7a1117f555..4ddcf3ec79 100644 --- a/contrib/libs/cxxsupp/libcxx/include/thread +++ b/contrib/libs/cxxsupp/libcxx/include/thread @@ -64,6 +64,9 @@ template<class charT, class traits> basic_ostream<charT, traits>& operator<<(basic_ostream<charT, traits>& out, thread::id id); +template<class charT> +struct formatter<thread::id, charT>; + namespace this_thread { @@ -84,19 +87,12 @@ void sleep_for(const chrono::duration<Rep, Period>& rel_time); */ #include <__assert> // all public C++ headers provide the assertion handler +#include <__availability> #include <__config> -#include <__functional/hash.h> -#include <__memory/unique_ptr.h> -#include <__mutex_base> -#include <__thread/poll_with_backoff.h> -#include <__thread/timed_backoff_policy.h> +#include <__thread/formatter.h> +#include <__thread/this_thread.h> +#include <__thread/thread.h> #include <__threading_support> -#include <__utility/forward.h> -#include <cstddef> -#include <iosfwd> -#include <system_error> -#include <tuple> -#include <type_traits> #include <version> // standard-mandated includes @@ -108,314 +104,27 @@ void sleep_for(const chrono::duration<Rep, Period>& rel_time); # pragma GCC system_header #endif -_LIBCPP_PUSH_MACROS -#include <__undef_macros> - #ifdef _LIBCPP_HAS_NO_THREADS # error "<thread> is not supported since libc++ has been configured without support for threads." #endif -_LIBCPP_BEGIN_NAMESPACE_STD - -template <class _Tp> class __thread_specific_ptr; -class _LIBCPP_TYPE_VIS __thread_struct; -class _LIBCPP_HIDDEN __thread_struct_imp; -class __assoc_sub_state; - -_LIBCPP_FUNC_VIS __thread_specific_ptr<__thread_struct>& __thread_local_data(); - -class _LIBCPP_TYPE_VIS __thread_struct -{ - __thread_struct_imp* __p_; - - __thread_struct(const __thread_struct&); - __thread_struct& operator=(const __thread_struct&); -public: - __thread_struct(); - ~__thread_struct(); - - void notify_all_at_thread_exit(condition_variable*, mutex*); - void __make_ready_at_thread_exit(__assoc_sub_state*); -}; - -template <class _Tp> -class __thread_specific_ptr -{ - __libcpp_tls_key __key_; - - // Only __thread_local_data() may construct a __thread_specific_ptr - // and only with _Tp == __thread_struct. - static_assert((is_same<_Tp, __thread_struct>::value), ""); - __thread_specific_ptr(); - friend _LIBCPP_FUNC_VIS __thread_specific_ptr<__thread_struct>& __thread_local_data(); - - __thread_specific_ptr(const __thread_specific_ptr&); - __thread_specific_ptr& operator=(const __thread_specific_ptr&); - - _LIBCPP_HIDDEN static void _LIBCPP_TLS_DESTRUCTOR_CC __at_thread_exit(void*); - -public: - typedef _Tp* pointer; - - ~__thread_specific_ptr(); - - _LIBCPP_INLINE_VISIBILITY - pointer get() const {return static_cast<_Tp*>(__libcpp_tls_get(__key_));} - _LIBCPP_INLINE_VISIBILITY - pointer operator*() const {return *get();} - _LIBCPP_INLINE_VISIBILITY - pointer operator->() const {return get();} - void set_pointer(pointer __p); -}; - -template <class _Tp> -void _LIBCPP_TLS_DESTRUCTOR_CC -__thread_specific_ptr<_Tp>::__at_thread_exit(void* __p) -{ - delete static_cast<pointer>(__p); -} - -template <class _Tp> -__thread_specific_ptr<_Tp>::__thread_specific_ptr() -{ - int __ec = - __libcpp_tls_create(&__key_, &__thread_specific_ptr::__at_thread_exit); - if (__ec) - __throw_system_error(__ec, "__thread_specific_ptr construction failed"); -} - -template <class _Tp> -__thread_specific_ptr<_Tp>::~__thread_specific_ptr() -{ - // __thread_specific_ptr is only created with a static storage duration - // so this destructor is only invoked during program termination. Invoking - // pthread_key_delete(__key_) may prevent other threads from deleting their - // thread local data. For this reason we leak the key. -} - -template <class _Tp> -void -__thread_specific_ptr<_Tp>::set_pointer(pointer __p) -{ - _LIBCPP_ASSERT(get() == nullptr, - "Attempting to overwrite thread local data"); - std::__libcpp_tls_set(__key_, __p); -} - -template<> -struct _LIBCPP_TEMPLATE_VIS hash<__thread_id> - : public __unary_function<__thread_id, size_t> -{ - _LIBCPP_INLINE_VISIBILITY - size_t operator()(__thread_id __v) const _NOEXCEPT - { - return hash<__libcpp_thread_id>()(__v.__id_); - } -}; - -template<class _CharT, class _Traits> -_LIBCPP_INLINE_VISIBILITY -basic_ostream<_CharT, _Traits>& -operator<<(basic_ostream<_CharT, _Traits>& __os, __thread_id __id) -{return __os << __id.__id_;} - -class _LIBCPP_TYPE_VIS thread -{ - __libcpp_thread_t __t_; - - thread(const thread&); - thread& operator=(const thread&); -public: - typedef __thread_id id; - typedef __libcpp_thread_t native_handle_type; - - _LIBCPP_INLINE_VISIBILITY - thread() _NOEXCEPT : __t_(_LIBCPP_NULL_THREAD) {} -#ifndef _LIBCPP_CXX03_LANG - template <class _Fp, class ..._Args, - class = __enable_if_t<!is_same<__remove_cvref_t<_Fp>, thread>::value> > - _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS - explicit thread(_Fp&& __f, _Args&&... __args); -#else // _LIBCPP_CXX03_LANG - template <class _Fp> - _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS - explicit thread(_Fp __f); +#if !defined(_LIBCPP_REMOVE_TRANSITIVE_INCLUDES) +# include <cstddef> +# include <ctime> +# include <iosfwd> +# include <ratio> #endif - ~thread(); - - _LIBCPP_INLINE_VISIBILITY - thread(thread&& __t) _NOEXCEPT : __t_(__t.__t_) { - __t.__t_ = _LIBCPP_NULL_THREAD; - } - - _LIBCPP_INLINE_VISIBILITY - thread& operator=(thread&& __t) _NOEXCEPT { - if (!__libcpp_thread_isnull(&__t_)) - terminate(); - __t_ = __t.__t_; - __t.__t_ = _LIBCPP_NULL_THREAD; - return *this; - } - - _LIBCPP_INLINE_VISIBILITY - void swap(thread& __t) _NOEXCEPT {_VSTD::swap(__t_, __t.__t_);} - - _LIBCPP_INLINE_VISIBILITY - bool joinable() const _NOEXCEPT {return !__libcpp_thread_isnull(&__t_);} - void join(); - void detach(); - _LIBCPP_INLINE_VISIBILITY - id get_id() const _NOEXCEPT {return __libcpp_thread_get_id(&__t_);} - _LIBCPP_INLINE_VISIBILITY - native_handle_type native_handle() _NOEXCEPT {return __t_;} - - static unsigned hardware_concurrency() _NOEXCEPT; -}; - -#ifndef _LIBCPP_CXX03_LANG - -template <class _TSp, class _Fp, class ..._Args, size_t ..._Indices> -inline _LIBCPP_INLINE_VISIBILITY -void -__thread_execute(tuple<_TSp, _Fp, _Args...>& __t, __tuple_indices<_Indices...>) -{ - _VSTD::__invoke(_VSTD::move(_VSTD::get<1>(__t)), _VSTD::move(_VSTD::get<_Indices>(__t))...); -} - -template <class _Fp> -_LIBCPP_INLINE_VISIBILITY -void* __thread_proxy(void* __vp) -{ - // _Fp = tuple< unique_ptr<__thread_struct>, Functor, Args...> - unique_ptr<_Fp> __p(static_cast<_Fp*>(__vp)); - __thread_local_data().set_pointer(_VSTD::get<0>(*__p.get()).release()); - typedef typename __make_tuple_indices<tuple_size<_Fp>::value, 2>::type _Index; - _VSTD::__thread_execute(*__p.get(), _Index()); - return nullptr; -} - -template <class _Fp, class ..._Args, - class - > -thread::thread(_Fp&& __f, _Args&&... __args) -{ - typedef unique_ptr<__thread_struct> _TSPtr; - _TSPtr __tsp(new __thread_struct); - typedef tuple<_TSPtr, typename decay<_Fp>::type, typename decay<_Args>::type...> _Gp; - unique_ptr<_Gp> __p( - new _Gp(_VSTD::move(__tsp), - _VSTD::forward<_Fp>(__f), - _VSTD::forward<_Args>(__args)...)); - int __ec = _VSTD::__libcpp_thread_create(&__t_, &__thread_proxy<_Gp>, __p.get()); - if (__ec == 0) - __p.release(); - else - __throw_system_error(__ec, "thread constructor failed"); -} - -#else // _LIBCPP_CXX03_LANG - -template <class _Fp> -struct __thread_invoke_pair { - // This type is used to pass memory for thread local storage and a functor - // to a newly created thread because std::pair doesn't work with - // std::unique_ptr in C++03. - __thread_invoke_pair(_Fp& __f) : __tsp_(new __thread_struct), __fn_(__f) {} - unique_ptr<__thread_struct> __tsp_; - _Fp __fn_; -}; - -template <class _Fp> -_LIBCPP_HIDE_FROM_ABI void* __thread_proxy_cxx03(void* __vp) -{ - unique_ptr<_Fp> __p(static_cast<_Fp*>(__vp)); - __thread_local_data().set_pointer(__p->__tsp_.release()); - (__p->__fn_)(); - return nullptr; -} - -template <class _Fp> -thread::thread(_Fp __f) -{ - - typedef __thread_invoke_pair<_Fp> _InvokePair; - typedef unique_ptr<_InvokePair> _PairPtr; - _PairPtr __pp(new _InvokePair(__f)); - int __ec = _VSTD::__libcpp_thread_create(&__t_, &__thread_proxy_cxx03<_InvokePair>, __pp.get()); - if (__ec == 0) - __pp.release(); - else - __throw_system_error(__ec, "thread constructor failed"); -} - -#endif // _LIBCPP_CXX03_LANG - -inline _LIBCPP_INLINE_VISIBILITY -void swap(thread& __x, thread& __y) _NOEXCEPT {__x.swap(__y);} - -namespace this_thread -{ - -_LIBCPP_FUNC_VIS void sleep_for(const chrono::nanoseconds& __ns); - -template <class _Rep, class _Period> -_LIBCPP_HIDE_FROM_ABI void -sleep_for(const chrono::duration<_Rep, _Period>& __d) -{ - if (__d > chrono::duration<_Rep, _Period>::zero()) - { - // The standard guarantees a 64bit signed integer resolution for nanoseconds, - // so use INT64_MAX / 1e9 as cut-off point. Use a constant to avoid <climits> - // and issues with long double folding on PowerPC with GCC. - _LIBCPP_CONSTEXPR chrono::duration<long double> _Max = - chrono::duration<long double>(9223372036.0L); - chrono::nanoseconds __ns; - if (__d < _Max) - { - __ns = chrono::duration_cast<chrono::nanoseconds>(__d); - if (__ns < __d) - ++__ns; - } - else - __ns = chrono::nanoseconds::max(); - this_thread::sleep_for(__ns); - } -} - -template <class _Clock, class _Duration> -_LIBCPP_HIDE_FROM_ABI void -sleep_until(const chrono::time_point<_Clock, _Duration>& __t) -{ - mutex __mut; - condition_variable __cv; - unique_lock<mutex> __lk(__mut); - while (_Clock::now() < __t) - __cv.wait_until(__lk, __t); -} - -template <class _Duration> -inline _LIBCPP_INLINE_VISIBILITY -void -sleep_until(const chrono::time_point<chrono::steady_clock, _Duration>& __t) -{ - this_thread::sleep_for(__t - chrono::steady_clock::now()); -} - -inline _LIBCPP_INLINE_VISIBILITY -void yield() _NOEXCEPT {__libcpp_thread_yield();} - -} // namespace this_thread - -_LIBCPP_END_NAMESPACE_STD - -_LIBCPP_POP_MACROS #if !defined(_LIBCPP_REMOVE_TRANSITIVE_INCLUDES) && _LIBCPP_STD_VER <= 17 # include <chrono> #endif #if !defined(_LIBCPP_REMOVE_TRANSITIVE_INCLUDES) && _LIBCPP_STD_VER <= 20 +# include <cstring> # include <functional> +# include <new> +# include <system_error> +# include <type_traits> #endif #endif // _LIBCPP_THREAD |