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pkg/storage: make Watch returns receive only channel (#1211)

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So the caller can not write to the channel, and insist that the channel
is for notifying only.
This commit is contained in:
Cuong Manh Le 2020-08-05 23:49:28 +07:00 • committed by GitHub
parent f4cb5ea6e9
commit ec52412d79
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4 changed files with 5 additions and 5 deletions
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pkg/storage/redis/redis.go
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@ -324,7 +324,7 @@ func (db *DB) subscribeRedisChannel(psc *redis.PubSubConn) error {
// Watch returns a channel to the caller, when there is a change to the version set,
// sending message to the channel to notify the caller.
func (db *DB) Watch(ctx context.Context) chan struct{} {
func (db *DB) Watch(ctx context.Context) <-chan struct{} {
ch := make(chan struct{})
go func() {
c := db.pool.Get()