Restoring authorship annotation for Andrey Khalyavin <halyavin@gmail.com>. Commit 1 of 2.

1 files changed, 240 insertions, 240 deletions

diff --git a/contrib/libs/cxxsupp/libcxx/include/semaphore b/contrib/libs/cxxsupp/libcxx/include/semaphore
index 4f9ecd0461..e49af03e42 100644
--- a/contrib/libs/cxxsupp/libcxx/include/semaphore
+++ b/contrib/libs/cxxsupp/libcxx/include/semaphore
@@ -1,240 +1,240 @@
-// -*- C++ -*-
-//===--------------------------- semaphore --------------------------------===//
-//
-// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
-// See https://llvm.org/LICENSE.txt for license information.
-// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
-//
-//===----------------------------------------------------------------------===//
-
-#ifndef _LIBCPP_SEMAPHORE
-#define _LIBCPP_SEMAPHORE
-
-/*
-    semaphore synopsis
-
-namespace std {
-
-template<ptrdiff_t least_max_value = implementation-defined>
-class counting_semaphore
-{
-public:
-static constexpr ptrdiff_t max() noexcept;
-
-constexpr explicit counting_semaphore(ptrdiff_t desired);
-~counting_semaphore();
-
-counting_semaphore(const counting_semaphore&) = delete;
-counting_semaphore& operator=(const counting_semaphore&) = delete;
-
-void release(ptrdiff_t update = 1);
-void acquire();
-bool try_acquire() noexcept;
-template<class Rep, class Period>
-    bool try_acquire_for(const chrono::duration<Rep, Period>& rel_time);
-template<class Clock, class Duration>
-    bool try_acquire_until(const chrono::time_point<Clock, Duration>& abs_time);
-
-private:
-ptrdiff_t counter; // exposition only
-};
-
-using binary_semaphore = counting_semaphore<1>;
-
-}
-
-*/
-
-#include <__availability>
-#include <__config>
-#include <__threading_support>
-#include <atomic>
-
-#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
-#pragma GCC system_header
-#endif
-
-#ifdef _LIBCPP_HAS_NO_THREADS
-# error <semaphore> is not supported on this single threaded system
-#endif
-
-_LIBCPP_PUSH_MACROS
-#include <__undef_macros>
-
-#if _LIBCPP_STD_VER >= 14
-
-_LIBCPP_BEGIN_NAMESPACE_STD
-
-/*
-
-__atomic_semaphore_base is the general-case implementation, to be used for
-user-requested least-max values that exceed the OS implementation support
-(incl. when the OS has no support of its own) and for binary semaphores.
-
-It is a typical Dijkstra semaphore algorithm over atomics, wait and notify
-functions. It avoids contention against users' own use of those facilities.
-
-*/
-
-class __atomic_semaphore_base
-{
-    __atomic_base<ptrdiff_t> __a;
-
-public:
-    _LIBCPP_INLINE_VISIBILITY
-    constexpr explicit __atomic_semaphore_base(ptrdiff_t __count) : __a(__count)
-    {
-    }
-    _LIBCPP_AVAILABILITY_SYNC _LIBCPP_INLINE_VISIBILITY
-    void release(ptrdiff_t __update = 1)
-    {
-        if(0 < __a.fetch_add(__update, memory_order_release))
-            ;
-        else if(__update > 1)
-            __a.notify_all();
-        else
-            __a.notify_one();
-    }
-    _LIBCPP_AVAILABILITY_SYNC _LIBCPP_INLINE_VISIBILITY
-    void acquire()
-    {
-        auto const __test_fn = [this]() -> bool {
-            auto __old = __a.load(memory_order_relaxed);
-            return (__old != 0) && __a.compare_exchange_strong(__old, __old - 1, memory_order_acquire, memory_order_relaxed);
-        };
-        __cxx_atomic_wait(&__a.__a_, __test_fn);
-    }
-    template <class Rep, class Period>
-    _LIBCPP_AVAILABILITY_SYNC _LIBCPP_INLINE_VISIBILITY
-    bool try_acquire_for(chrono::duration<Rep, Period> const& __rel_time)
-    {
-        auto const __test_fn = [this]() -> bool {
-            auto __old = __a.load(memory_order_acquire);
-            while(1) {
-                if (__old == 0)
-                    return false;
-                if(__a.compare_exchange_strong(__old, __old - 1, memory_order_acquire, memory_order_relaxed))
-                    return true;
-            }
-        };
-        return __libcpp_thread_poll_with_backoff(__test_fn, __libcpp_timed_backoff_policy(), __rel_time);
-    }
-};
-
-#ifndef _LIBCPP_NO_NATIVE_SEMAPHORES
-
-/*
-
-__platform_semaphore_base a simple wrapper for the OS semaphore type. That
-is, every call is routed to the OS in the most direct manner possible.
-
-*/
-
-class __platform_semaphore_base
-{
-    __libcpp_semaphore_t __semaphore;
-
-public:
-    _LIBCPP_INLINE_VISIBILITY
-    explicit __platform_semaphore_base(ptrdiff_t __count) :
-        __semaphore()
-    {
-        __libcpp_semaphore_init(&__semaphore, __count);
-    }
-    _LIBCPP_INLINE_VISIBILITY
-    ~__platform_semaphore_base() {
-        __libcpp_semaphore_destroy(&__semaphore);
-    }
-    _LIBCPP_INLINE_VISIBILITY
-    void release(ptrdiff_t __update)
-    {
-        for(; __update; --__update)
-            __libcpp_semaphore_post(&__semaphore);
-    }
-    _LIBCPP_INLINE_VISIBILITY
-    void acquire()
-    {
-        __libcpp_semaphore_wait(&__semaphore);
-    }
-    _LIBCPP_INLINE_VISIBILITY
-    bool try_acquire_for(chrono::nanoseconds __rel_time)
-    {
-        return __libcpp_semaphore_wait_timed(&__semaphore, __rel_time);
-    }
-};
-
-template<ptrdiff_t __least_max_value>
-using __semaphore_base =
-    typename conditional<(__least_max_value > 1 && __least_max_value <= _LIBCPP_SEMAPHORE_MAX),
-                         __platform_semaphore_base,
-                         __atomic_semaphore_base>::type;
-
-#else
-
-template<ptrdiff_t __least_max_value>
-using __semaphore_base =
-    __atomic_semaphore_base;
-
-#define _LIBCPP_SEMAPHORE_MAX (numeric_limits<ptrdiff_t>::max())
-
-#endif //_LIBCPP_NO_NATIVE_SEMAPHORES
-
-template<ptrdiff_t __least_max_value = _LIBCPP_SEMAPHORE_MAX>
-class counting_semaphore
-{
-    __semaphore_base<__least_max_value> __semaphore;
-
-public:
-    static constexpr ptrdiff_t max() noexcept {
-        return __least_max_value;
-    }
-
-    _LIBCPP_INLINE_VISIBILITY
-    constexpr explicit counting_semaphore(ptrdiff_t __count) : __semaphore(__count) { }
-    ~counting_semaphore() = default;
-
-    counting_semaphore(const counting_semaphore&) = delete;
-    counting_semaphore& operator=(const counting_semaphore&) = delete;
-
-    _LIBCPP_AVAILABILITY_SYNC _LIBCPP_INLINE_VISIBILITY
-    void release(ptrdiff_t __update = 1)
-    {
-        __semaphore.release(__update);
-    }
-    _LIBCPP_AVAILABILITY_SYNC _LIBCPP_INLINE_VISIBILITY
-    void acquire()
-    {
-        __semaphore.acquire();
-    }
-    template<class Rep, class Period>
-    _LIBCPP_AVAILABILITY_SYNC _LIBCPP_INLINE_VISIBILITY
-    bool try_acquire_for(chrono::duration<Rep, Period> const& __rel_time)
-    {
-        return __semaphore.try_acquire_for(chrono::duration_cast<chrono::nanoseconds>(__rel_time));
-    }
-    _LIBCPP_AVAILABILITY_SYNC _LIBCPP_INLINE_VISIBILITY
-    bool try_acquire()
-    {
-        return try_acquire_for(chrono::nanoseconds::zero());
-    }
-    template <class Clock, class Duration>
-    _LIBCPP_AVAILABILITY_SYNC _LIBCPP_INLINE_VISIBILITY
-    bool try_acquire_until(chrono::time_point<Clock, Duration> const& __abs_time)
-    {
-        auto const current = Clock::now();
-        if(current >= __abs_time)
-            return try_acquire();
-        else
-            return try_acquire_for(__abs_time - current);
-    }
-};
-
-using binary_semaphore = counting_semaphore<1>;
-
-_LIBCPP_END_NAMESPACE_STD
-
-#endif // _LIBCPP_STD_VER >= 14
-
-_LIBCPP_POP_MACROS
-
-#endif //_LIBCPP_SEMAPHORE
+// -*- C++ -*- 
+//===--------------------------- semaphore --------------------------------===// 
+// 
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 
+// See https://llvm.org/LICENSE.txt for license information. 
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 
+// 
+//===----------------------------------------------------------------------===// 
+ 
+#ifndef _LIBCPP_SEMAPHORE 
+#define _LIBCPP_SEMAPHORE 
+ 
+/* 
+    semaphore synopsis 
+ 
+namespace std { 
+ 
+template<ptrdiff_t least_max_value = implementation-defined> 
+class counting_semaphore 
+{ 
+public: 
+static constexpr ptrdiff_t max() noexcept; 
+ 
+constexpr explicit counting_semaphore(ptrdiff_t desired); 
+~counting_semaphore(); 
+ 
+counting_semaphore(const counting_semaphore&) = delete; 
+counting_semaphore& operator=(const counting_semaphore&) = delete; 
+ 
+void release(ptrdiff_t update = 1); 
+void acquire(); 
+bool try_acquire() noexcept; 
+template<class Rep, class Period> 
+    bool try_acquire_for(const chrono::duration<Rep, Period>& rel_time); 
+template<class Clock, class Duration> 
+    bool try_acquire_until(const chrono::time_point<Clock, Duration>& abs_time); 
+ 
+private: 
+ptrdiff_t counter; // exposition only 
+}; 
+ 
+using binary_semaphore = counting_semaphore<1>; 
+ 
+} 
+ 
+*/ 
+ 
+#include <__availability> 
+#include <__config> 
+#include <__threading_support> 
+#include <atomic> 
+ 
+#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) 
+#pragma GCC system_header 
+#endif 
+ 
+#ifdef _LIBCPP_HAS_NO_THREADS 
+# error <semaphore> is not supported on this single threaded system 
+#endif 
+ 
+_LIBCPP_PUSH_MACROS 
+#include <__undef_macros> 
+ 
+#if _LIBCPP_STD_VER >= 14 
+ 
+_LIBCPP_BEGIN_NAMESPACE_STD 
+ 
+/* 
+ 
+__atomic_semaphore_base is the general-case implementation, to be used for 
+user-requested least-max values that exceed the OS implementation support 
+(incl. when the OS has no support of its own) and for binary semaphores. 
+ 
+It is a typical Dijkstra semaphore algorithm over atomics, wait and notify 
+functions. It avoids contention against users' own use of those facilities. 
+ 
+*/ 
+ 
+class __atomic_semaphore_base 
+{ 
+    __atomic_base<ptrdiff_t> __a; 
+ 
+public: 
+    _LIBCPP_INLINE_VISIBILITY 
+    constexpr explicit __atomic_semaphore_base(ptrdiff_t __count) : __a(__count) 
+    { 
+    } 
+    _LIBCPP_AVAILABILITY_SYNC _LIBCPP_INLINE_VISIBILITY 
+    void release(ptrdiff_t __update = 1) 
+    { 
+        if(0 < __a.fetch_add(__update, memory_order_release)) 
+            ; 
+        else if(__update > 1) 
+            __a.notify_all(); 
+        else 
+            __a.notify_one(); 
+    } 
+    _LIBCPP_AVAILABILITY_SYNC _LIBCPP_INLINE_VISIBILITY 
+    void acquire() 
+    { 
+        auto const __test_fn = [this]() -> bool { 
+            auto __old = __a.load(memory_order_relaxed); 
+            return (__old != 0) && __a.compare_exchange_strong(__old, __old - 1, memory_order_acquire, memory_order_relaxed); 
+        }; 
+        __cxx_atomic_wait(&__a.__a_, __test_fn); 
+    } 
+    template <class Rep, class Period> 
+    _LIBCPP_AVAILABILITY_SYNC _LIBCPP_INLINE_VISIBILITY 
+    bool try_acquire_for(chrono::duration<Rep, Period> const& __rel_time) 
+    { 
+        auto const __test_fn = [this]() -> bool { 
+            auto __old = __a.load(memory_order_acquire); 
+            while(1) { 
+                if (__old == 0) 
+                    return false; 
+                if(__a.compare_exchange_strong(__old, __old - 1, memory_order_acquire, memory_order_relaxed)) 
+                    return true; 
+            } 
+        }; 
+        return __libcpp_thread_poll_with_backoff(__test_fn, __libcpp_timed_backoff_policy(), __rel_time); 
+    } 
+}; 
+ 
+#ifndef _LIBCPP_NO_NATIVE_SEMAPHORES 
+ 
+/* 
+ 
+__platform_semaphore_base a simple wrapper for the OS semaphore type. That 
+is, every call is routed to the OS in the most direct manner possible. 
+ 
+*/ 
+ 
+class __platform_semaphore_base 
+{ 
+    __libcpp_semaphore_t __semaphore; 
+ 
+public: 
+    _LIBCPP_INLINE_VISIBILITY 
+    explicit __platform_semaphore_base(ptrdiff_t __count) : 
+        __semaphore() 
+    { 
+        __libcpp_semaphore_init(&__semaphore, __count); 
+    } 
+    _LIBCPP_INLINE_VISIBILITY 
+    ~__platform_semaphore_base() { 
+        __libcpp_semaphore_destroy(&__semaphore); 
+    } 
+    _LIBCPP_INLINE_VISIBILITY 
+    void release(ptrdiff_t __update) 
+    { 
+        for(; __update; --__update) 
+            __libcpp_semaphore_post(&__semaphore); 
+    } 
+    _LIBCPP_INLINE_VISIBILITY 
+    void acquire() 
+    { 
+        __libcpp_semaphore_wait(&__semaphore); 
+    } 
+    _LIBCPP_INLINE_VISIBILITY 
+    bool try_acquire_for(chrono::nanoseconds __rel_time) 
+    { 
+        return __libcpp_semaphore_wait_timed(&__semaphore, __rel_time); 
+    } 
+}; 
+ 
+template<ptrdiff_t __least_max_value> 
+using __semaphore_base = 
+    typename conditional<(__least_max_value > 1 && __least_max_value <= _LIBCPP_SEMAPHORE_MAX), 
+                         __platform_semaphore_base, 
+                         __atomic_semaphore_base>::type; 
+ 
+#else 
+ 
+template<ptrdiff_t __least_max_value> 
+using __semaphore_base = 
+    __atomic_semaphore_base; 
+ 
+#define _LIBCPP_SEMAPHORE_MAX (numeric_limits<ptrdiff_t>::max()) 
+ 
+#endif //_LIBCPP_NO_NATIVE_SEMAPHORES 
+ 
+template<ptrdiff_t __least_max_value = _LIBCPP_SEMAPHORE_MAX> 
+class counting_semaphore 
+{ 
+    __semaphore_base<__least_max_value> __semaphore; 
+ 
+public: 
+    static constexpr ptrdiff_t max() noexcept { 
+        return __least_max_value; 
+    } 
+ 
+    _LIBCPP_INLINE_VISIBILITY 
+    constexpr explicit counting_semaphore(ptrdiff_t __count) : __semaphore(__count) { } 
+    ~counting_semaphore() = default; 
+ 
+    counting_semaphore(const counting_semaphore&) = delete; 
+    counting_semaphore& operator=(const counting_semaphore&) = delete; 
+ 
+    _LIBCPP_AVAILABILITY_SYNC _LIBCPP_INLINE_VISIBILITY 
+    void release(ptrdiff_t __update = 1) 
+    { 
+        __semaphore.release(__update); 
+    } 
+    _LIBCPP_AVAILABILITY_SYNC _LIBCPP_INLINE_VISIBILITY 
+    void acquire() 
+    { 
+        __semaphore.acquire(); 
+    } 
+    template<class Rep, class Period> 
+    _LIBCPP_AVAILABILITY_SYNC _LIBCPP_INLINE_VISIBILITY 
+    bool try_acquire_for(chrono::duration<Rep, Period> const& __rel_time) 
+    { 
+        return __semaphore.try_acquire_for(chrono::duration_cast<chrono::nanoseconds>(__rel_time)); 
+    } 
+    _LIBCPP_AVAILABILITY_SYNC _LIBCPP_INLINE_VISIBILITY 
+    bool try_acquire() 
+    { 
+        return try_acquire_for(chrono::nanoseconds::zero()); 
+    } 
+    template <class Clock, class Duration> 
+    _LIBCPP_AVAILABILITY_SYNC _LIBCPP_INLINE_VISIBILITY 
+    bool try_acquire_until(chrono::time_point<Clock, Duration> const& __abs_time) 
+    { 
+        auto const current = Clock::now(); 
+        if(current >= __abs_time) 
+            return try_acquire(); 
+        else 
+            return try_acquire_for(__abs_time - current); 
+    } 
+}; 
+ 
+using binary_semaphore = counting_semaphore<1>; 
+ 
+_LIBCPP_END_NAMESPACE_STD 
+ 
+#endif // _LIBCPP_STD_VER >= 14 
+ 
+_LIBCPP_POP_MACROS 
+ 
+#endif //_LIBCPP_SEMAPHORE