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keep index in the store

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This commit is contained in:
Xiang Li 2013-06-29 13:13:51 -07:00
parent 5681e1a9d0
commit cff78e2e5e
1 changed files with 12 additions and 3 deletions
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15
store/store.go
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@ -27,6 +27,9 @@ type Store struct {
// the string channel to send messages to the outside world
// now we use it to send changes to the hub of the web service
messager *chan string
// current Index
index uint64
}
type Node struct {
@ -80,6 +83,9 @@ func (s *Store) SetMessager(messager *chan string) {
// set the key to value, return the old value if the key exists
func Set(key string, value string, expireTime time.Time, index uint64) ([]byte, error) {
//update index
s.index = index
key = path.Clean(key)
var isExpire bool = false
@ -172,7 +178,7 @@ func expire(key string, update chan time.Time, expireTime time.Time) {
delete(s.Nodes, key)
resp := Response{DELETE, key, node.Value, "", true, node.ExpireTime, 0}
resp := Response{DELETE, key, node.Value, "", true, node.ExpireTime, s.index}
msg, err := json.Marshal(resp)
@ -209,14 +215,17 @@ func Get(key string) Response {
node, ok := s.Nodes[key]
if ok {
return Response{GET, key, node.Value, node.Value, true, node.ExpireTime, 0}
return Response{GET, key, node.Value, node.Value, true, node.ExpireTime, s.index}
} else {
return Response{GET, key, "", "", false, time.Unix(0, 0), 0}
return Response{GET, key, "", "", false, time.Unix(0, 0), s.index}
}
}
// delete the key
func Delete(key string, index uint64) ([]byte, error) {
//update index
s.index = index
key = path.Clean(key)
node, ok := s.Nodes[key]