tree 32797621f7fabf42c9853369a24e15b0e8230af6
parent b2dd7690abdcb5173a757e18970199840636e037
author Louis Dionne <ldionne@apple.com> 1535119259 +0000
committer Louis Dionne <ldionne@apple.com> 1535119259 +0000

[libc++] Remove race condition in std::async

Summary:
The state associated to the future was set in one thread (with synchronization)
but read in another thread without synchronization, which led to a data race.

https://bugs.llvm.org/show_bug.cgi?id=38181
rdar://problem/42548261

Reviewers: mclow.lists, EricWF

Subscribers: christof, dexonsmith, cfe-commits

Differential Revision: https://reviews.llvm.org/D51170

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@340608 91177308-0d34-0410-b5e6-96231b3b80d8