Use time() instead of clock() for timeouts.

The clock() function returns the processor time used by the process. This
is not a good timeout mechanism since the code is suspended most of the
time waiting for the forked process to finish. Replace with the time()
function.

Bug: 17154069
Change-Id: Ib383329f9db269445d71a100553b08e71fddda3f
1 file changed