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;;; pipe-skel.el - pipelined graph node skeleton
(require 'skeleton)
(define-skeleton skel-periodic
"Insert a skeleton periodic process node"
nil
'(setq node-name (skeleton-read "Name: "))
'(setq uc-node-name (upcase node-name))
'(setq poll-period (skeleton-read "Poll period (f64 seconds, e.g. 10.0): "))
"
#define " uc-node-name "_POLL_PERIOD " poll-period "
static uword
" node-name "_process (vlib_main_t * vm,
vlib_node_runtime_t * rt,
vlib_frame_t * f)
{
f64 poll_time_remaining;
uword event_type, * event_data = 0;
poll_time_remaining = " uc-node-name "_POLL_PERIOD;
while (1) {
int i;
/*
* Sleep until next periodic call due, or until we receive event(s)
*/
poll_time_remaining =
vlib_process_wait_for_event_or_clock (vm, poll_time_remaining);
event_type = vlib_process_get_events (vm, &event_data);
switch (event_type) {
case ~0: /* no events => timeout */
break;
/*
* $$$$ FIXME: add cases / handlers for each event type
*/
case EVENT1:
for (i = 0; i < vec_len (event_data); i++)
handle_event1 (mm, event_data[i]);
break;
case EVENT2:
for (i = 0; i < vec_len (event_data); i++)
handle_event2 (vm, event_data[i]);
break;
/* ... and so forth for each event type */
default:
/* This should never happen... */
clib_warning (\"BUG: unhandled event type %d\", event_type);
break;
}
if (event_data)
_vec_len (event_data) = 0;
/* Timer expired, call periodic function */
if (vlib_process_suspend_time_is_zero (poll_time_remaining)) {
" node-name "_periodic (vm);
poll_time_remaining = " uc-node-name "_POLL_PERIOD;
}
}
return 0;
}
/*
* " node-name " periodic node declaration
*/
static VLIB_REGISTER_NODE (" node-name "_node) = {
.function = " node-name "_process,
.type = VLIB_NODE_TYPE_PROCESS,
.name = \"" node-name "-process\",
};
/*
* To signal an event:
*
* vlib_process_signal_event (vm, " node-name "_node.index, EVENTn, datum);
*
*/
")
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