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Commit d20d5398 authored by Jiakai Zhang's avatar Jiakai Zhang
Browse files

Create a pipe between otapreopt_script and Pre-reboot Dexopt. 

Pre-reboot Dexopt uses this pipe to check if otapreopt_script is alive,
and cancels itself when otapreopt_script dies.

Bug: 311377497
Test: -
  1. system/update_engine/scripts/update_device.py out/dist/aosp_cf_x86_64_phone-ota-*.zip
  2. Wait for update_engine to enter the postinstall stage.
  3. adb shell update_engine_client --cancel
Change-Id: I9ef4525f4d0b3b8344604166a044c9e3e1bf18a0
parent 9fa9da81

cmds/installd/otapreopt_script.sh

+21 −1
Original line number Diff line number Diff line
@@ -50,7 +50,27 @@ else 
  exit 1

fi



if pm art on-ota-staged --slot "$TARGET_SLOT_SUFFIX"; then

# A source that infinitely emits arbitrary lines.

# When connected to STDIN of another process, this source keeps STDIN open until

# the consumer process closes STDIN or this script dies.

function infinite_source {

  while echo .; do

    sleep 1

  done

}



# Delegate to Pre-reboot Dexopt, a feature of ART Service.

# ART Service decides what to do with this request:

# - If Pre-reboot Dexopt is disabled or unsupported, the command returns

#   non-zero. This is always the case if the current system is Android 14 or

#   earlier.

# - If Pre-reboot Dexopt is enabled in synchronous mode, the command blocks

#   until Pre-reboot Dexopt finishes, and returns zero no matter it succeeds or

#   not. This is the default behavior if the current system is Android 15.

# - If Pre-reboot Dexopt is enabled in asynchronous mode, the command schedules

#   an asynchronous job and returns 0 immediately. The job will then run by the

#   job scheduler when the device is idle and charging.

if infinite_source | pm art on-ota-staged --slot "$TARGET_SLOT_SUFFIX"; then

  # Handled by Pre-reboot Dexopt.

  exit 0

fi