# Copyright 2017 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     "Chrome OS MIDI server"
author          "chromium-os-dev@chromium.org"

stop on stopping ui
respawn
expect fork

# Allow the MIDI server real time priority.
limit rtprio 20 20

pre-start script
  # Check if ui is still running before starting MIDI server.
  # This is to prevent new dbus-activated instances from getting started once
  # the system is beginning to shut down.
  if ! initctl status ui | grep -q running; then
    stop
    exit 0
  fi
end script

# Needs access to /dev to perform device enumeration.
# Needs access to /run/dbus to connect to D-Bus.
# Needs access to /run/systemd/journal for logging (crbug.com/932761)
exec minijail0 -i -l -p -N -n -v -P /mnt/empty -b / -b /dev -b /proc \
  -k 'tmpfs,/run,tmpfs,MS_NOSUID|MS_NODEV|MS_NOEXEC' -b /run/dbus \
  -b /run/systemd/journal -t -r \
  -S /usr/share/policy/midis-seccomp.policy \
  -c 0 -u midis -g midis -G -- /usr/bin/midis

# Wait for daemon to claim its D-Bus name before transitioning to started.
post-start exec minijail0 -u midis -g midis /usr/bin/gdbus \
    wait --system --timeout 15 org.chromium.Midis