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clientv3/concurrency: Document Election API context parameter

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fixes #9377
This commit is contained in:
Vimal K 2018-08-12 21:29:57 +05:30
parent 484f622034
commit 35fa6e13b9
1 changed files with 10 additions and 2 deletions
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12
clientv3/concurrency/election.go
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@ -55,8 +55,16 @@ func ResumeElection(s *Session, pfx string, leaderKey string, leaderRev int64) *
}
}
// Campaign puts a value as eligible for the election. It blocks until
// it is elected, an error occurs, or the context is cancelled.
// Campaign puts a value as eligible for the election on the prefix
// key.
// Multiple sessions can participate in the election for the
// same prefix, but only one can be the leader at a time.
//
// If the context is 'context.TODO()/context.Background()', the Campaign
// will continue to be blocked for other keys to be deleted, unless server
// returns a non-recoverable error (e.g. ErrCompacted).
// Otherwise, until the context is not cancelled or timed-out, Campaign will
// continue to be blocked until it becomes the leader.
func (e *Election) Campaign(ctx context.Context, val string) error {
s := e.session
client := e.session.Client()