Prior to MSVC 2015 we had to manually include this header any
time we were going to include <thread> or <future> due to a
bug in MSVC's STL implementation. This has been fixed in MSVC
for some time now, and we require VS 2015 minimum, so we can
remove this across all subprojects.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@296906 91177308-0d34-0410-b5e6-96231b3b80d8
This is a very simple implementation of a thread pool using C++11
thread. It accepts any std::function<void()> for asynchronous
execution. Individual task can be synchronize using the returned
future, or the client can block on the full queue completion.
In case LLVM is configured with Threading disabled, it falls back
to sequential execution using std::async with launch:deferred.
This is intended to support parallelism for ThinLTO processing in
linker plugin, but is generic enough for any other uses.
This is a recommit of r255444 ; trying to workaround a bug in the
MSVC 2013 standard library. I think I was hit by:
http://connect.microsoft.com/VisualStudio/feedbackdetail/view/791185/std-packaged-task-t-where-t-is-void-or-a-reference-class-are-not-movable
Recommit of r255589, trying to please g++ as well.
Differential Revision: http://reviews.llvm.org/D15464
From: mehdi_amini <mehdi_amini@91177308-0d34-0410-b5e6-96231b3b80d8>
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255593 91177308-0d34-0410-b5e6-96231b3b80d8
This is a very simple implementation of a thread pool using C++11
thread. It accepts any std::function<void()> for asynchronous
execution. Individual task can be synchronize using the returned
future, or the client can block on the full queue completion.
In case LLVM is configured with Threading disabled, it falls back
to sequential execution using std::async with launch:deferred.
This is intended to support parallelism for ThinLTO processing in
linker plugin, but is generic enough for any other uses.
Differential Revision: http://reviews.llvm.org/D15464
From: Mehdi Amini <mehdi.amini@apple.com>
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255444 91177308-0d34-0410-b5e6-96231b3b80d8
Specifically, the header now provides llvm::thread, which is either a
typedef of std::thread or a replacement that calls the function synchronously
depending on the value of LLVM_ENABLE_THREADS.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246402 91177308-0d34-0410-b5e6-96231b3b80d8
This header is a wrapper for <thread> that works around problems with the
MSVC headers when exceptions are disabled.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246218 91177308-0d34-0410-b5e6-96231b3b80d8
