The semantics are read operation are generally to return 0 bytes and
STATUS_SUCCESS when there are no events.
Also, added a fix to assign the PID to the synthetic OVS_MESSAGE formed
for the command validation.
Signed-off-by: Nithin Raju <nithin@vmware.com>
Acked-by: Eitan Eliahu <eliahue@vmware.com>
Acked-by: Alin Gabriel Serdean <aserdean@cloudbasesolutions.com>
Signed-off-by: Ben Pfaff <blp@nicira.com>
ovsMsg = &ovsMsgReadOp;
ovsMsg->nlMsg.nlmsgType = OVS_WIN_NL_CTRL_FAMILY_ID;
+ ovsMsg->nlMsg.nlmsgPid = instance->pid;
/* An "artificial" command so we can use NL family function table*/
ovsMsg->genlMsg.cmd = (code == OVS_IOCTL_READ_EVENT) ?
OVS_CTRL_CMD_EVENT_NOTIFY :
/* remove an event entry from the event queue */
status = OvsRemoveEventEntry(usrParamsCtx->ovsInstance, &eventEntry);
if (status != STATUS_SUCCESS) {
+ /* If there were not elements, read should return no data. */
+ status = STATUS_SUCCESS;
+ *replyLen = 0;
goto cleanup;
}