| 64 | } |
| 65 | |
| 66 | func (c Client) SDIFF(key string, subtractKeys ...string) (members []string, err error) { |
| 67 | memberSet := make(map[string]struct{}) |
| 68 | startingList, err := c.SMEMBERS(key) |
| 69 | |
| 70 | if err != nil { |
| 71 | return |
| 72 | } |
| 73 | |
| 74 | for _, member := range startingList { |
| 75 | memberSet[member] = struct{}{} |
| 76 | } |
| 77 | |
| 78 | for _, otherKey := range subtractKeys { |
| 79 | otherList, err := c.SMEMBERS(otherKey) |
| 80 | if err != nil { |
| 81 | return members, err |
| 82 | } |
| 83 | |
| 84 | for _, member := range otherList { |
| 85 | delete(memberSet, member) |
| 86 | } |
| 87 | } |
| 88 | |
| 89 | for member := range memberSet { |
| 90 | members = append(members, member) |
| 91 | } |
| 92 | |
| 93 | return |
| 94 | } |
| 95 | |
| 96 | func (c Client) SDIFFSTORE(destinationKey string, sourceKey string, subtractKeys ...string) (count int64, err error) { |
| 97 | members, err := c.SDIFF(sourceKey, subtractKeys...) |