This update changes the way hcsshim invokes Windows DLLs to avoid races
with the garbage collector. It also now uses go-winio to access the
pipes used for communication with processes running in the container;
this reduces the number of threads used by docker.exe, improving
scalability.
Signed-off-by: John Starks <jostarks@microsoft.com>
Upstream-commit: 7ccc0e2101a66e0621faf1f043bf7cd5515501d5
Component: engine
