Use the mock wrappers to override pthread_self(), enabling the
unit tests to switch emulation between different threads
from the context of a single unit test thread.
Add this into the io_channel unit tests with some very basic
testing of allocating and freeing multiple threads.
Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: I8742f16c39e92e82065dc5b8f2e5b2e79273a4f8
Reviewed-on: https://review.gerrithub.io/377992
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
