This allows attach of existing fifos to be done without any information
stored on the client side.
Signed-off-by: Michael Crosby <crosbymichael@gmail.com>
This adds both container and task loading of running tasks as well as
reattaching to the IO of the task after load.
Signed-off-by: Michael Crosby <crosbymichael@gmail.com>
This also fixes a deadlock in the shim's reaper where execs would lockup
and/or miss a quick exiting exec process's exit status.
Signed-off-by: Michael Crosby <crosbymichael@gmail.com>
