mirror of https://github.com/poanetwork/gecko.git
56 lines
1.5 KiB
Go
56 lines
1.5 KiB
Go
// (c) 2019-2020, Ava Labs, Inc. All rights reserved.
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// See the file LICENSE for licensing terms.
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package poll
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import (
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"fmt"
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"github.com/ava-labs/gecko/ids"
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)
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type noEarlyTermFactory struct{}
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// NewNoEarlyTermFactory returns a factory that returns polls with no early
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// termination
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func NewNoEarlyTermFactory() Factory { return noEarlyTermFactory{} }
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func (noEarlyTermFactory) New(vdrs ids.ShortSet) Poll {
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return &noEarlyTermPoll{polled: vdrs}
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}
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// noEarlyTermPoll finishes when all polled validators either respond to the
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// query or a timeout occurs
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type noEarlyTermPoll struct {
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votes ids.Bag
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polled ids.ShortSet
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}
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// Vote registers a response for this poll
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func (p *noEarlyTermPoll) Vote(vdr ids.ShortID, vote ids.ID) {
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if !p.polled.Contains(vdr) {
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// if the validator wasn't polled or already responded to this poll, we
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// should just drop the vote
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return
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}
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// make sure that a validator can't respond multiple times
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p.polled.Remove(vdr)
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// track the votes the validator responded with
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p.votes.Add(vote)
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}
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// Drop any future response for this poll
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func (p *noEarlyTermPoll) Drop(vdr ids.ShortID) { p.polled.Remove(vdr) }
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// Finished returns true when all validators have voted
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func (p *noEarlyTermPoll) Finished() bool { return p.polled.Len() == 0 }
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// Result returns the result of this poll
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func (p *noEarlyTermPoll) Result() ids.Bag { return p.votes }
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func (p *noEarlyTermPoll) String() string {
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return fmt.Sprintf("waiting on %s", p.polled)
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}
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