| Armelle Laine | 4c9d64a | 2024-11-20 04:42:35 +0000 | [diff] [blame^] | 1 | #!/bin/bash |
| 2 | set -euo pipefail |
| 3 | |
| 4 | function get_cid { |
| 5 | local max_cid |
| 6 | max_cid=$(/apex/com.android.virt/bin/vm list | awk 'BEGIN { FS="[:,]" } /cid/ { print $2; }' | sort -n | tail -1) |
| 7 | |
| 8 | # return the value trimmed from whitespaces |
| 9 | echo "${max_cid}" | xargs |
| 10 | } |
| 11 | |
| 12 | function wait_for_cid { |
| 13 | TIMES=${1:-20} |
| 14 | X=0 |
| 15 | local init_cid |
| 16 | init_cid=$(get_cid) |
| 17 | while [ "$TIMES" -eq 0 ] || [ "$TIMES" -gt "$X" ] |
| 18 | do |
| 19 | local cid |
| 20 | cid=$(get_cid) |
| 21 | echo "wait_for_cid: retry $(( X++ )) / $TIMES : init_cid=$init_cid cid=$cid"; |
| 22 | if [ "$cid" -gt "$init_cid" ] |
| 23 | then |
| 24 | break |
| 25 | else |
| 26 | sleep 2 |
| 27 | fi |
| 28 | done |
| 29 | setprop trusty.test_vm.vm_cid "$cid" |
| 30 | } |
| 31 | |
| 32 | # This script is expected to be started before the trusty_test_vm is started |
| 33 | # wait_for_cid gets the max cid and wait for it to be updated as an indication |
| 34 | # that the trusty_test_vm has properly started. |
| 35 | # wait_for_cid polls for the CID change at 2 seconds intervals |
| 36 | # the input argument is the max number of retries (20 by default) |
| 37 | wait_for_cid "$@" |
| 38 | |
| 39 | echo trusty.test_vm.vm_cid="$(getprop trusty.test_vm.vm_cid)" |