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resources: Add poll metaparameter

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This allows a resource to use polling instead of the event based
mechanism. This isn't recommended, but it could be useful, and it was
certainly fun to code!
This commit is contained in:
James Shubin
2016-12-23 23:48:33 -05:00
parent 6ad8ac0b6b
commit b921aabbed
5 changed files with 129 additions and 7 deletions
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10
resources/sendrecv.go
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@@ -62,8 +62,6 @@ func (obj *BaseRes) ReadEvent(ev *event.Event) (exit, send bool) {
if ev.GetActivity() { // if previous node did work, and we were notified...
//obj.StateOK(false) // not necessarily
poke = true // poke!
// XXX: this should be elsewhere in case Watch isn't used (eg: Polling instead...)
// XXX: unless this is used in our "fallback" polling implementation???
//obj.SetRefresh(true) // TODO: is this redundant?
}
@@ -111,10 +109,10 @@ func (obj *BaseRes) ReadEvent(ev *event.Event) (exit, send bool) {
// Running is called by the Watch method of the resource once it has started up.
// This signals to the engine to kick off the initial CheckApply resource check.
func (obj *BaseRes) Running(processChan chan event.Event) error {
obj.StateOK(false) // assume we're initially dirty
cuid := obj.ConvergerUID() // get the converger uid used to report status
cuid.SetConverged(false) // a reasonable initial assumption
close(obj.started) // send started signal
obj.StateOK(false) // assume we're initially dirty
cuid := obj.ConvergerUID() // get the converger uid used to report status
cuid.SetConverged(false) // a reasonable initial assumption
close(obj.started) // send started signal
// FIXME: exit return value is unused atm, so ignore it for now...
//if exit, err := obj.DoSend(processChan, ""); exit || err != nil {