ceph-csi/vendor/github.com/josharian/intern/intern.go
Madhu Rajanna c4f79d455f rebase: update kubernetes dep to 1.24.0
As kubernetes 1.24.0 is released, updating
kubernetes dependencies to 1.24.0

updates: #3086

Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>
2022-05-09 09:16:12 +00:00

45 lines
790 B
Go

// Package intern interns strings.
// Interning is best effort only.
// Interned strings may be removed automatically
// at any time without notification.
// All functions may be called concurrently
// with themselves and each other.
package intern
import "sync"
var (
pool sync.Pool = sync.Pool{
New: func() interface{} {
return make(map[string]string)
},
}
)
// String returns s, interned.
func String(s string) string {
m := pool.Get().(map[string]string)
c, ok := m[s]
if ok {
pool.Put(m)
return c
}
m[s] = s
pool.Put(m)
return s
}
// Bytes returns b converted to a string, interned.
func Bytes(b []byte) string {
m := pool.Get().(map[string]string)
c, ok := m[string(b)]
if ok {
pool.Put(m)
return c
}
s := string(b)
m[s] = s
pool.Put(m)
return s
}