From 16ff81ed8b1ed9aa06fb1a731a2446b66cc49bef Mon Sep 17 00:00:00 2001
From: patrick <patrick@openbsd.org>
Date: Mon, 11 Jan 2021 15:31:56 +0000
Subject: Remove libc++ and libc++abi 8.0.0 now that we switched to version
 10.0.1 in the gnu/ directory.

---
 lib/libcxx/src/shared_mutex.cpp | 116 ----------------------------------------
 1 file changed, 116 deletions(-)
 delete mode 100644 lib/libcxx/src/shared_mutex.cpp

(limited to 'lib/libcxx/src/shared_mutex.cpp')

diff --git a/lib/libcxx/src/shared_mutex.cpp b/lib/libcxx/src/shared_mutex.cpp
deleted file mode 100644
index 6185f15deab..00000000000
--- a/lib/libcxx/src/shared_mutex.cpp
+++ /dev/null
@@ -1,116 +0,0 @@
-//===---------------------- shared_mutex.cpp ------------------------------===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-
-#include "__config"
-#ifndef _LIBCPP_HAS_NO_THREADS
-
-#include "shared_mutex"
-
-_LIBCPP_BEGIN_NAMESPACE_STD
-
-// Shared Mutex Base
-__shared_mutex_base::__shared_mutex_base()
-    : __state_(0)
-{
-}
-
-// Exclusive ownership
-
-void
-__shared_mutex_base::lock()
-{
-    unique_lock<mutex> lk(__mut_);
-    while (__state_ & __write_entered_)
-        __gate1_.wait(lk);
-    __state_ |= __write_entered_;
-    while (__state_ & __n_readers_)
-        __gate2_.wait(lk);
-}
-
-bool
-__shared_mutex_base::try_lock()
-{
-    unique_lock<mutex> lk(__mut_);
-    if (__state_ == 0)
-    {
-        __state_ = __write_entered_;
-        return true;
-    }
-    return false;
-}
-
-void
-__shared_mutex_base::unlock()
-{
-    lock_guard<mutex> _(__mut_);
-    __state_ = 0;
-    __gate1_.notify_all();
-}
-
-// Shared ownership
-
-void
-__shared_mutex_base::lock_shared()
-{
-    unique_lock<mutex> lk(__mut_);
-    while ((__state_ & __write_entered_) || (__state_ & __n_readers_) == __n_readers_)
-        __gate1_.wait(lk);
-    unsigned num_readers = (__state_ & __n_readers_) + 1;
-    __state_ &= ~__n_readers_;
-    __state_ |= num_readers;
-}
-
-bool
-__shared_mutex_base::try_lock_shared()
-{
-    unique_lock<mutex> lk(__mut_);
-    unsigned num_readers = __state_ & __n_readers_;
-    if (!(__state_ & __write_entered_) && num_readers != __n_readers_)
-    {
-        ++num_readers;
-        __state_ &= ~__n_readers_;
-        __state_ |= num_readers;
-        return true;
-    }
-    return false;
-}
-
-void
-__shared_mutex_base::unlock_shared()
-{
-    lock_guard<mutex> _(__mut_);
-    unsigned num_readers = (__state_ & __n_readers_) - 1;
-    __state_ &= ~__n_readers_;
-    __state_ |= num_readers;
-    if (__state_ & __write_entered_)
-    {
-        if (num_readers == 0)
-            __gate2_.notify_one();
-    }
-    else
-    {
-        if (num_readers == __n_readers_ - 1)
-            __gate1_.notify_one();
-    }
-}
-
-
-// Shared Timed Mutex
-// These routines are here for ABI stability
-shared_timed_mutex::shared_timed_mutex() : __base() {}
-void shared_timed_mutex::lock()     { return __base.lock(); }
-bool shared_timed_mutex::try_lock() { return __base.try_lock(); }
-void shared_timed_mutex::unlock()   { return __base.unlock(); }
-void shared_timed_mutex::lock_shared() { return __base.lock_shared(); }
-bool shared_timed_mutex::try_lock_shared() { return __base.try_lock_shared(); }
-void shared_timed_mutex::unlock_shared() { return __base.unlock_shared(); }
-
-_LIBCPP_END_NAMESPACE_STD
-
-#endif // !_LIBCPP_HAS_NO_THREADS
-- 
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