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Wait until we can initiate contact with the update engine before starting update.

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Change-Id: I2f741d7866192300946299f9050717721c2a644d

BUG=chromium-os:12605
TEST=Changed impl of check_status to return 1 and made sure timeout got inc'd
correctly and aborted.  Also checked to make sure if status returned 0 i.e.
update_engine_client --status returned 0, we would continue.

Review URL: http://codereview.chromium.org/6594089
This commit is contained in:
Chris Sosa 2011-03-01 15:16:16 -08:00
parent e1b78a7efd
commit d39057d242
1 changed files with 18 additions and 0 deletions
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18
image_to_live.sh
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@ -307,12 +307,30 @@ function status_thread {
done
}
# Pings the update_engine to see if it responds or a max timeout is reached.
# Returns 1 if max timeout is reached.
function wait_until_update_engine_is_ready {
local wait_timeout=1
local max_timeout=60
local time_elapsed=0
while ! get_update_var CURRENT_OP > /dev/null; do
sleep ${wait_timeout}
time_elapsed=$(( time_elapsed + wait_timeout ))
echo -n "."
if [ ${time_elapsed} -gt ${max_timeout} ]; then
return 1
fi
done
}
function run_auto_update {
# Truncate the update log so our log file is clean.
truncate_update_log
local update_args="$(get_update_args "$(get_devserver_url)")"
info "Waiting to initiate contact with the update_engine."
wait_until_update_engine_is_ready || die "Could not contact update engine."
info "Starting update using args ${update_args}"
# Sets up a secondary thread to track the update progress.