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author | Christopher Speller <crspeller@gmail.com> | 2017-07-31 08:15:23 -0700 |
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committer | GitHub <noreply@github.com> | 2017-07-31 08:15:23 -0700 |
commit | 09b49c26ddfdb20ced61e7dfd4192e750ce40449 (patch) | |
tree | 1288d069cc8a199b8eb3b858935dffd377ee3d2d /vendor/github.com/go-redis/redis/script.go | |
parent | 6f4e38d129ffaf469d40fc8596d3957ee94d21e9 (diff) | |
download | chat-09b49c26ddfdb20ced61e7dfd4192e750ce40449.tar.gz chat-09b49c26ddfdb20ced61e7dfd4192e750ce40449.tar.bz2 chat-09b49c26ddfdb20ced61e7dfd4192e750ce40449.zip |
PLT-5308 Caching layer part 2 (#6973)
* Adding Reaction store cache layer example
* Implementing reaction store in new caching system.
* Redis for reaction store
* Adding redis library
* Adding invalidation for DeleteAllWithEmojiName and other minor enhancements
Diffstat (limited to 'vendor/github.com/go-redis/redis/script.go')
-rw-r--r-- | vendor/github.com/go-redis/redis/script.go | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/vendor/github.com/go-redis/redis/script.go b/vendor/github.com/go-redis/redis/script.go new file mode 100644 index 000000000..74135f5a5 --- /dev/null +++ b/vendor/github.com/go-redis/redis/script.go @@ -0,0 +1,62 @@ +package redis + +import ( + "crypto/sha1" + "encoding/hex" + "io" + "strings" +) + +type scripter interface { + Eval(script string, keys []string, args ...interface{}) *Cmd + EvalSha(sha1 string, keys []string, args ...interface{}) *Cmd + ScriptExists(scripts ...string) *BoolSliceCmd + ScriptLoad(script string) *StringCmd +} + +var _ scripter = (*Client)(nil) +var _ scripter = (*Ring)(nil) +var _ scripter = (*ClusterClient)(nil) + +type Script struct { + src, hash string +} + +func NewScript(src string) *Script { + h := sha1.New() + io.WriteString(h, src) + return &Script{ + src: src, + hash: hex.EncodeToString(h.Sum(nil)), + } +} + +func (s *Script) Hash() string { + return s.hash +} + +func (s *Script) Load(c scripter) *StringCmd { + return c.ScriptLoad(s.src) +} + +func (s *Script) Exists(c scripter) *BoolSliceCmd { + return c.ScriptExists(s.src) +} + +func (s *Script) Eval(c scripter, keys []string, args ...interface{}) *Cmd { + return c.Eval(s.src, keys, args...) +} + +func (s *Script) EvalSha(c scripter, keys []string, args ...interface{}) *Cmd { + return c.EvalSha(s.hash, keys, args...) +} + +// Run optimistically uses EVALSHA to run the script. If script does not exist +// it is retried using EVAL. +func (s *Script) Run(c scripter, keys []string, args ...interface{}) *Cmd { + r := s.EvalSha(c, keys, args...) + if err := r.Err(); err != nil && strings.HasPrefix(err.Error(), "NOSCRIPT ") { + return s.Eval(c, keys, args...) + } + return r +} |