Date: Tue, 20 Aug 2019 21:35:47 +0000 (UTC) From: Dimitry Andric <dim@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-vendor@freebsd.org Subject: svn commit: r351309 - in vendor/libc++/dist-release_90: include src Message-ID: <201908202135.x7KLZlHC005978@repo.freebsd.org>
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Author: dim Date: Tue Aug 20 21:35:46 2019 New Revision: 351309 URL: https://svnweb.freebsd.org/changeset/base/351309 Log: Vendor import of libc++ release_90 branch r369369: https://llvm.org/svn/llvm-project/libcxx/branches/release_90@369369 Modified: vendor/libc++/dist-release_90/include/__threading_support vendor/libc++/dist-release_90/include/mutex vendor/libc++/dist-release_90/include/thread vendor/libc++/dist-release_90/src/mutex.cpp Modified: vendor/libc++/dist-release_90/include/__threading_support ============================================================================== --- vendor/libc++/dist-release_90/include/__threading_support Tue Aug 20 21:35:44 2019 (r351308) +++ vendor/libc++/dist-release_90/include/__threading_support Tue Aug 20 21:35:46 2019 (r351309) @@ -12,6 +12,7 @@ #include <__config> #include <chrono> +#include <iosfwd> #include <errno.h> #ifndef _LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER @@ -393,6 +394,86 @@ int __libcpp_tls_set(__libcpp_tls_key __key, void *__p } #endif // !_LIBCPP_HAS_THREAD_LIBRARY_EXTERNAL || _LIBCPP_BUILDING_THREAD_LIBRARY_EXTERNAL + +class _LIBCPP_TYPE_VIS thread; +class _LIBCPP_TYPE_VIS __thread_id; + +namespace this_thread +{ + +_LIBCPP_INLINE_VISIBILITY __thread_id get_id() _NOEXCEPT; + +} // this_thread + +template<> struct hash<__thread_id>; + +class _LIBCPP_TEMPLATE_VIS __thread_id +{ + // FIXME: pthread_t is a pointer on Darwin but a long on Linux. + // NULL is the no-thread value on Darwin. Someone needs to check + // on other platforms. We assume 0 works everywhere for now. + __libcpp_thread_id __id_; + +public: + _LIBCPP_INLINE_VISIBILITY + __thread_id() _NOEXCEPT : __id_(0) {} + + friend _LIBCPP_INLINE_VISIBILITY + bool operator==(__thread_id __x, __thread_id __y) _NOEXCEPT + { // don't pass id==0 to underlying routines + if (__x.__id_ == 0) return __y.__id_ == 0; + if (__y.__id_ == 0) return false; + return __libcpp_thread_id_equal(__x.__id_, __y.__id_); + } + friend _LIBCPP_INLINE_VISIBILITY + bool operator!=(__thread_id __x, __thread_id __y) _NOEXCEPT + {return !(__x == __y);} + friend _LIBCPP_INLINE_VISIBILITY + bool operator< (__thread_id __x, __thread_id __y) _NOEXCEPT + { // id==0 is always less than any other thread_id + if (__x.__id_ == 0) return __y.__id_ != 0; + if (__y.__id_ == 0) return false; + return __libcpp_thread_id_less(__x.__id_, __y.__id_); + } + friend _LIBCPP_INLINE_VISIBILITY + bool operator<=(__thread_id __x, __thread_id __y) _NOEXCEPT + {return !(__y < __x);} + friend _LIBCPP_INLINE_VISIBILITY + bool operator> (__thread_id __x, __thread_id __y) _NOEXCEPT + {return __y < __x ;} + friend _LIBCPP_INLINE_VISIBILITY + bool operator>=(__thread_id __x, __thread_id __y) _NOEXCEPT + {return !(__x < __y);} + + _LIBCPP_INLINE_VISIBILITY + void __reset() { __id_ = 0; } + + template<class _CharT, class _Traits> + friend + _LIBCPP_INLINE_VISIBILITY + basic_ostream<_CharT, _Traits>& + operator<<(basic_ostream<_CharT, _Traits>& __os, __thread_id __id); + +private: + _LIBCPP_INLINE_VISIBILITY + __thread_id(__libcpp_thread_id __id) : __id_(__id) {} + + friend __thread_id this_thread::get_id() _NOEXCEPT; + friend class _LIBCPP_TYPE_VIS thread; + friend struct _LIBCPP_TEMPLATE_VIS hash<__thread_id>; +}; + +namespace this_thread +{ + +inline _LIBCPP_INLINE_VISIBILITY +__thread_id +get_id() _NOEXCEPT +{ + return __libcpp_thread_get_current_id(); +} + +} // this_thread _LIBCPP_END_NAMESPACE_STD Modified: vendor/libc++/dist-release_90/include/mutex ============================================================================== --- vendor/libc++/dist-release_90/include/mutex Tue Aug 20 21:35:44 2019 (r351308) +++ vendor/libc++/dist-release_90/include/mutex Tue Aug 20 21:35:46 2019 (r351309) @@ -280,7 +280,7 @@ class _LIBCPP_TYPE_VIS recursive_timed_mutex mutex __m_; condition_variable __cv_; size_t __count_; - __libcpp_thread_id __id_; + __thread_id __id_; public: recursive_timed_mutex(); ~recursive_timed_mutex(); @@ -307,9 +307,9 @@ bool recursive_timed_mutex::try_lock_until(const chrono::time_point<_Clock, _Duration>& __t) { using namespace chrono; - __libcpp_thread_id __id = __libcpp_thread_get_current_id(); + __thread_id __id = this_thread::get_id(); unique_lock<mutex> lk(__m_); - if (__libcpp_thread_id_equal(__id, __id_)) + if (__id == __id_) { if (__count_ == numeric_limits<size_t>::max()) return false; Modified: vendor/libc++/dist-release_90/include/thread ============================================================================== --- vendor/libc++/dist-release_90/include/thread Tue Aug 20 21:35:44 2019 (r351308) +++ vendor/libc++/dist-release_90/include/thread Tue Aug 20 21:35:46 2019 (r351309) @@ -200,64 +200,6 @@ __thread_specific_ptr<_Tp>::set_pointer(pointer __p) __libcpp_tls_set(__key_, __p); } -class _LIBCPP_TYPE_VIS thread; -class _LIBCPP_TYPE_VIS __thread_id; - -namespace this_thread -{ - -_LIBCPP_INLINE_VISIBILITY __thread_id get_id() _NOEXCEPT; - -} // this_thread - -template<> struct hash<__thread_id>; - -class _LIBCPP_TEMPLATE_VIS __thread_id -{ - // FIXME: pthread_t is a pointer on Darwin but a long on Linux. - // NULL is the no-thread value on Darwin. Someone needs to check - // on other platforms. We assume 0 works everywhere for now. - __libcpp_thread_id __id_; - -public: - _LIBCPP_INLINE_VISIBILITY - __thread_id() _NOEXCEPT : __id_(0) {} - - friend _LIBCPP_INLINE_VISIBILITY - bool operator==(__thread_id __x, __thread_id __y) _NOEXCEPT - {return __libcpp_thread_id_equal(__x.__id_, __y.__id_);} - friend _LIBCPP_INLINE_VISIBILITY - bool operator!=(__thread_id __x, __thread_id __y) _NOEXCEPT - {return !(__x == __y);} - friend _LIBCPP_INLINE_VISIBILITY - bool operator< (__thread_id __x, __thread_id __y) _NOEXCEPT - {return __libcpp_thread_id_less(__x.__id_, __y.__id_);} - friend _LIBCPP_INLINE_VISIBILITY - bool operator<=(__thread_id __x, __thread_id __y) _NOEXCEPT - {return !(__y < __x);} - friend _LIBCPP_INLINE_VISIBILITY - bool operator> (__thread_id __x, __thread_id __y) _NOEXCEPT - {return __y < __x ;} - friend _LIBCPP_INLINE_VISIBILITY - bool operator>=(__thread_id __x, __thread_id __y) _NOEXCEPT - {return !(__x < __y);} - - template<class _CharT, class _Traits> - friend - _LIBCPP_INLINE_VISIBILITY - basic_ostream<_CharT, _Traits>& - operator<<(basic_ostream<_CharT, _Traits>& __os, __thread_id __id) - {return __os << __id.__id_;} - -private: - _LIBCPP_INLINE_VISIBILITY - __thread_id(__libcpp_thread_id __id) : __id_(__id) {} - - friend __thread_id this_thread::get_id() _NOEXCEPT; - friend class _LIBCPP_TYPE_VIS thread; - friend struct _LIBCPP_TEMPLATE_VIS hash<__thread_id>; -}; - template<> struct _LIBCPP_TEMPLATE_VIS hash<__thread_id> : public unary_function<__thread_id, size_t> @@ -269,17 +211,11 @@ struct _LIBCPP_TEMPLATE_VIS hash<__thread_id> } }; -namespace this_thread -{ - -inline _LIBCPP_INLINE_VISIBILITY -__thread_id -get_id() _NOEXCEPT -{ - return __libcpp_thread_get_current_id(); -} - -} // this_thread +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 { Modified: vendor/libc++/dist-release_90/src/mutex.cpp ============================================================================== --- vendor/libc++/dist-release_90/src/mutex.cpp Tue Aug 20 21:35:44 2019 (r351308) +++ vendor/libc++/dist-release_90/src/mutex.cpp Tue Aug 20 21:35:46 2019 (r351309) @@ -132,7 +132,7 @@ timed_mutex::unlock() _NOEXCEPT recursive_timed_mutex::recursive_timed_mutex() : __count_(0), - __id_(0) + __id_{} { } @@ -144,9 +144,9 @@ recursive_timed_mutex::~recursive_timed_mutex() void recursive_timed_mutex::lock() { - __libcpp_thread_id id = __libcpp_thread_get_current_id(); + __thread_id id = this_thread::get_id(); unique_lock<mutex> lk(__m_); - if (__libcpp_thread_id_equal(id, __id_)) + if (id ==__id_) { if (__count_ == numeric_limits<size_t>::max()) __throw_system_error(EAGAIN, "recursive_timed_mutex lock limit reached"); @@ -162,9 +162,9 @@ recursive_timed_mutex::lock() bool recursive_timed_mutex::try_lock() _NOEXCEPT { - __libcpp_thread_id id = __libcpp_thread_get_current_id(); + __thread_id id = this_thread::get_id(); unique_lock<mutex> lk(__m_, try_to_lock); - if (lk.owns_lock() && (__count_ == 0 || __libcpp_thread_id_equal(id, __id_))) + if (lk.owns_lock() && (__count_ == 0 || id == __id_)) { if (__count_ == numeric_limits<size_t>::max()) return false; @@ -181,7 +181,7 @@ recursive_timed_mutex::unlock() _NOEXCEPT unique_lock<mutex> lk(__m_); if (--__count_ == 0) { - __id_ = 0; + __id_.__reset(); lk.unlock(); __cv_.notify_one(); }
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