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Code Issues Releases Activity

improve cache modules. support mulit instances

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This commit is contained in:
astaxie
2016-01-04 10:50:04 +08:00
parent 92d157736b
commit a03fa0fb73
5 changed files with 18 additions and 15 deletions
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11
cache/cache.go vendored
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@ -37,7 +37,7 @@ import (
// Cache interface contains all behaviors for cache adapter.
// usage:
// cache.Register("file",cache.NewFileCache()) // this operation is run in init method of file.go.
// cache.Register("file",cache.NewFileCache) // this operation is run in init method of file.go.
// c,err := cache.NewCache("file","{....}")
// c.Put("key",value,3600)
// v := c.Get("key")
@ -66,12 +66,14 @@ type Cache interface {
StartAndGC(config string) error
}
var adapters = make(map[string]Cache)
type CacheInstance func() Cache
var adapters = make(map[string]CacheInstance)
// Register makes a cache adapter available by the adapter name.
// If Register is called twice with the same name or if driver is nil,
// it panics.
func Register(name string, adapter Cache) {
func Register(name string, adapter CacheInstance) {
if adapter == nil {
panic("cache: Register adapter is nil")
}
@ -85,11 +87,12 @@ func Register(name string, adapter Cache) {
// config need to be correct JSON as string: {"interval":360}.
// it will start gc automatically.
func NewCache(adapterName, config string) (adapter Cache, err error) {
adapter, ok := adapters[adapterName]
instanceFunc, ok := adapters[adapterName]
if !ok {
err = fmt.Errorf("cache: unknown adapter name %q (forgot to import?)", adapterName)
return
}
adapter = instanceFunc()
err = adapter.StartAndGC(config)
if err != nil {
adapter = nil