8d86b2e686
If you're crazy enough to want this sort of thing, then add -D_LIBCPP_HAS_NO_THREADS to your CXXFLAGS and --param=additiona_features=libcpp-has-no-threads to your lit commnad line. http://reviews.llvm.org/D3969 git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@217271 91177308-0d34-0410-b5e6-96231b3b80d8
59 lines
1.1 KiB
C++
59 lines
1.1 KiB
C++
//===----------------------------------------------------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is dual licensed under the MIT and the University of Illinois Open
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// Source Licenses. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// UNSUPPORTED: libcpp-has-no-threads
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// <condition_variable>
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// class condition_variable;
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// ~condition_variable();
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#include <condition_variable>
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#include <mutex>
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#include <thread>
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#include <cassert>
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std::condition_variable* cv;
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std::mutex m;
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typedef std::unique_lock<std::mutex> Lock;
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bool f_ready = false;
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bool g_ready = false;
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void f()
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{
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Lock lk(m);
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f_ready = true;
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cv->notify_one();
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delete cv;
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}
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void g()
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{
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Lock lk(m);
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g_ready = true;
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cv->notify_one();
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while (!f_ready)
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cv->wait(lk);
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}
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int main()
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{
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cv = new std::condition_variable;
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std::thread th2(g);
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Lock lk(m);
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while (!g_ready)
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cv->wait(lk);
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lk.unlock();
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std::thread th1(f);
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th1.join();
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th2.join();
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}
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