rootdir/init-mmd-prop.rc

on property:sys.boot_completed=1
    # When mmd package is not included in the image, we need to initialize
    # `mmd.enabled_aconfig` sysprop instead of `mmd --set-property`.
    #
    # This is because of the consideration for devices in Trunkfood and Nextfood
    # under mmd being launched via AConfig flag. The devices set up zram with
    # mmd if `mmd_enabled` AConfig flag is enabled, otherwise set up zram with
    # swapon_all init command. Since AConfig does not support any init script
    # integration, we use `mmd.enabled_aconfig` copied by `mmd --set-property`
    # instead of AConfig flag itself and we need mmd.enabled_aconfig to be empty
    # by default, to let swapon_all command wait until aconfig flag value is
    # loaded to the system property.
    # Devices in Trunkfood and Nextfood needs to execute swapon_all command on
    # `on property:mmd.enabled_aconfig=*` trigger. So initializing
    # `mmd.enabled_aconfig` sysprop is required on images without mmd package.
    #
    # Note that this init file must not be in the image if mmd is built into the
    # image.
    setprop mmd.enabled_aconfig false