tree 28d1b377360a08e0fb4d7f3355e232f8c55681be
parent 8fb82b391930ddb51d3a6f8582e2633d2eef1aa0
author Zhuoyao Zhang <zhuoyao@google.com> 1509748285 -0700
committer Zhuoyao Zhang <zhuoyao@google.com> 1511904795 -0800

Handle large protobuf transfer with vts shell driver

* Before this chagne, the vts shell driver run the given command and
  send back the stdout and stderr in protobuf, this cause problems
  for large stdout or stderr content.
* Now, depends on the size of stdout and stderr, if size <= 1MB, send
  back the out back directly same as before, if size > 1Mb, stores
  the output in files and vts host side shell mirror pull the file to
  host and read the content as the command results.

Bug:68678681

Test: make vts.
      vts-tradefed run vts -m VtsHalKeymasterV3_0TargetReplay
      vts-tradefed run vts -m VtsKernelLtpTest
      vts-tradefed run vts -m VtsHalVibratorV1_0Target
      vts-tradefed run vts -m ShellBinaryCrashTest

Change-Id: I3e99c405de5ad4e47614dcc0f11f2fe512a63f74