AT_BANNER([ovs-vswitchd])

dnl The OVS initscripts never make an empty database (one without even an
dnl Open_vSwitch record) visible to ovs-vswitchd, but hand-rolled scripts
dnl sometimes do.  At one point, "ovs-vswitchd --detach" would never detach
dnl and use 100% CPU if this happened, so this test checks for regression.
AT_SETUP([ovs-vswitchd detaches correctly with empty db])
OVS_RUNDIR=`pwd`; export OVS_RUNDIR
OVS_LOGDIR=`pwd`; export OVS_LOGDIR
OVS_DBDIR=`pwd`; export OVS_DBDIR
OVS_SYSCONFDIR=`pwd`; export OVS_SYSCONFDIR
ON_EXIT([kill `cat ovsdb-server.pid ovs-vswitchd.pid`])

dnl Create database.
touch .conf.db.~lock~
AT_CHECK([ovsdb-tool create conf.db $abs_top_srcdir/vswitchd/vswitch.ovsschema])

dnl Start ovsdb-server.  *Don't* initialize database.
AT_CHECK([ovsdb-server --detach --no-chdir --pidfile --log-file --remote=punix:$OVS_RUNDIR/db.sock], [0], [ignore], [ignore])
AT_CAPTURE_FILE([ovsdb-server.log])

dnl Start ovs-vswitchd.
AT_CHECK([ovs-vswitchd --detach --no-chdir --pidfile --enable-dummy --disable-system --log-file], [0], [], [stderr])
AT_CAPTURE_FILE([ovs-vswitchd.log])

dnl ovs-vswitchd detached OK or we wouldn't have made it this far.  Success.
AT_CLEANUP


dnl ----------------------------------------------------------------------
m4_define([OVS_VSCTL_CHECK_RX_PKT], [
AT_CHECK([ovs-vsctl list int $1 | grep statistics | sed -n 's/^.*\(rx_packets=[[0-9]]\+\).*$/\1/p'],[0],
[dnl
rx_packets=$2
])
])

AT_SETUP([ovs-vswitchd -- stats-update-interval])
OVS_VSWITCHD_START([add-port br0 p1 -- set int p1 type=internal])
ovs-appctl time/stop

dnl at the beginning, the udpate of rx_packets should happen every 5 seconds.
for i in `seq 0 10`; do ovs-appctl time/warp 1000; done
OVS_VSCTL_CHECK_RX_PKT([p1], [0])
AT_CHECK([ovs-appctl netdev-dummy/receive p1 'eth(src=50:54:00:00:00:09,dst=50:54:00:00:00:0a),eth_type(0x0800),ipv4(src=10.0.0.2,dst=10.0.0.1,proto=1,tos=0,ttl=64,frag=no),icmp(type=8,code=0)'])
for i in `seq 0 10`; do ovs-appctl time/warp 1000; done
OVS_VSCTL_CHECK_RX_PKT([p1], [1])

dnl set the stats update interval to 100K ms, the following 'recv' should not be updated.
AT_CHECK([ovs-vsctl set O . other_config:stats-update-interval=100000])
for i in `seq 0 50`; do ovs-appctl time/warp 1000; done
for i in `seq 1 5`; do
    AT_CHECK([ovs-appctl netdev-dummy/receive p1 'eth(src=50:54:00:00:00:09,dst=50:54:00:00:00:0a),eth_type(0x0800),ipv4(src=10.0.0.2,dst=10.0.0.1,proto=1,tos=0,ttl=64,frag=no),icmp(type=8,code=0)'])
done

OVS_VSCTL_CHECK_RX_PKT([p1], [1])
dnl advance the clock by 100K ms, the previous 'recv' should be updated.
for i in `seq 0 99`; do ovs-appctl time/warp 1000; done
OVS_VSCTL_CHECK_RX_PKT([p1], [6])

dnl now remove the configuration. 'recv' one packet.  there should be an update after 5000 ms.
AT_CHECK([ovs-vsctl clear O . other_config])
AT_CHECK([ovs-appctl netdev-dummy/receive p1 'eth(src=50:54:00:00:00:09,dst=50:54:00:00:00:0a),eth_type(0x0800),ipv4(src=10.0.0.2,dst=10.0.0.1,proto=1,tos=0,ttl=64,frag=no),icmp(type=8,code=0)'])
for i in `seq 0 10`; do ovs-appctl time/warp 1000; done
OVS_VSCTL_CHECK_RX_PKT([p1], [7])

OVS_VSWITCHD_STOP
AT_CLEANUP