diff options
Diffstat (limited to 'meta-google/recipes-google/networking/files/gbmc-ip-monitor.sh')
| -rwxr-xr-x | meta-google/recipes-google/networking/files/gbmc-ip-monitor.sh | 23 |
1 files changed, 21 insertions, 2 deletions
diff --git a/meta-google/recipes-google/networking/files/gbmc-ip-monitor.sh b/meta-google/recipes-google/networking/files/gbmc-ip-monitor.sh index e64c8675e..9da090f47 100755 --- a/meta-google/recipes-google/networking/files/gbmc-ip-monitor.sh +++ b/meta-google/recipes-google/networking/files/gbmc-ip-monitor.sh @@ -44,6 +44,17 @@ gbmc_ip_monitor_generate_init() { echo '[INIT]' } +GBMC_IP_MONITOR_DEFER_OUTSTANDING= +gbmc_ip_monitor_defer_() { + sleep 1 + printf '[DEFER]\n' >&$GBMC_IP_MONITOR_DEFER +} +gbmc_ip_monitor_defer() { + [ -z "$GBMC_IP_MONITOR_DEFER_OUTSTANDING" ] || return 0 + gbmc_ip_monitor_defer_ & + GBMC_IP_MONITOR_DEFER_OUTSTANDING=1 +} + gbmc_ip_monitor_parse_line() { local line="$1" if [[ "$line" == '[INIT]'* ]]; then @@ -98,11 +109,16 @@ gbmc_ip_monitor_parse_line() { read line || break data=($line) mac="${data[1]}" + elif [[ "$line" == '[DEFER]'* ]]; then + GBMC_IP_MONITOR_DEFER_OUTSTANDING= + change=defer else return 2 fi } +return 0 2>/dev/null + cleanup() { local st="$?" trap - HUP INT QUIT ABRT TERM EXIT @@ -111,7 +127,10 @@ cleanup() { } trap cleanup HUP INT QUIT ABRT TERM EXIT -return 0 2>/dev/null +FIFODIR="$(mktemp -d)" +mkfifo "$FIFODIR"/fifo +exec {GBMC_IP_MONITOR_DEFER}<>"$FIFODIR"/fifo +rm -rf "$FIFODIR" while read line; do gbmc_ip_monitor_parse_line "$line" || continue @@ -119,4 +138,4 @@ while read line; do if [ "$change" = 'init' ]; then systemd-notify --ready fi -done < <(gbmc_ip_monitor_generate_init; exec ip monitor link addr route label) +done < <(gbmc_ip_monitor_generate_init; ip monitor link addr route label & cat <&$GBMC_IP_MONITOR_DEFER) |