# Copyright 2016 The Chromium OS Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.

description   "Run ureadahead for ARC++"
author        "chromium-os-dev@chromium.org"

# Run this job in parallel with arc_setup_wrapper.sh run_oci hook. The job
# shouldn't be started until 'ureadahead' (which may be in tracing mode)
# is stopped, otherwise ureadahead may corrupt the $PACK file. Depending
# on start-arc-instance ensures that.
start on start-arc-instance

script
  {
    PACK=/opt/google/containers/android/ureadahead.pack

    echo "Start arc-ureadahead"
    set -x

    # Read-ahead files in the image.
    if [ -f "${PACK}" ]; then
      ureadahead --pack-file="${PACK}" || \
          echo "Failed to start ureadahead pack for ${PACK}"
    else
      echo "ureadahead pack is not available at ${PACK}"
    fi
  } 2>&1 | logger -t "${UPSTART_JOB}"
end script