This changes the copyIO in the shim to support logging to files from
client requests in addition to fifos.
Signed-off-by: Michael Crosby <crosbymichael@gmail.com>
To avoid buffer bloat in long running processes, we try to use buffer
pools where possible. This is meant to address shim memory usage issues,
but may not be the root cause.
Signed-off-by: Stephen J Day <stephen.day@docker.com>
