137 lines
2.5 KiB
Go
137 lines
2.5 KiB
Go
package hashenc
|
|
|
|
import (
|
|
"crypto/md5"
|
|
"crypto/sha1"
|
|
"crypto/sha256"
|
|
"crypto/sha512"
|
|
"hash"
|
|
"sync"
|
|
)
|
|
|
|
// Hash defines a pooled hash.Hash implementation
|
|
type Hash interface {
|
|
// Hash ensures we implement the base hash.Hash implementation
|
|
hash.Hash
|
|
|
|
// Release resets the Hash and places it back in the pool
|
|
Release()
|
|
}
|
|
|
|
// poolHash is our Hash implementation, providing a hash.Hash and a pool to return to
|
|
type poolHash struct {
|
|
hash.Hash
|
|
pool *sync.Pool
|
|
}
|
|
|
|
func (h *poolHash) Release() {
|
|
h.Reset()
|
|
h.pool.Put(h)
|
|
}
|
|
|
|
// SHA512Pool defines a pool of SHA512 hashes
|
|
type SHA512Pool interface {
|
|
// SHA512 returns a Hash implementing the SHA512 hashing algorithm
|
|
SHA512() Hash
|
|
}
|
|
|
|
// NewSHA512Pool returns a new SHA512Pool implementation
|
|
func NewSHA512Pool() SHA512Pool {
|
|
p := &sha512Pool{}
|
|
p.New = func() interface{} {
|
|
return &poolHash{
|
|
Hash: sha512.New(),
|
|
pool: &p.Pool,
|
|
}
|
|
}
|
|
return p
|
|
}
|
|
|
|
// sha512Pool is our SHA512Pool implementation, simply wrapping sync.Pool
|
|
type sha512Pool struct {
|
|
sync.Pool
|
|
}
|
|
|
|
func (p *sha512Pool) SHA512() Hash {
|
|
return p.Get().(Hash)
|
|
}
|
|
|
|
// SHA256Pool defines a pool of SHA256 hashes
|
|
type SHA256Pool interface {
|
|
// SHA256 returns a Hash implementing the SHA256 hashing algorithm
|
|
SHA256() Hash
|
|
}
|
|
|
|
// NewSHA256Pool returns a new SHA256Pool implementation
|
|
func NewSHA256Pool() SHA256Pool {
|
|
p := &sha256Pool{}
|
|
p.New = func() interface{} {
|
|
return &poolHash{
|
|
Hash: sha256.New(),
|
|
pool: &p.Pool,
|
|
}
|
|
}
|
|
return p
|
|
}
|
|
|
|
// sha256Pool is our SHA256Pool implementation, simply wrapping sync.Pool
|
|
type sha256Pool struct {
|
|
sync.Pool
|
|
}
|
|
|
|
func (p *sha256Pool) SHA256() Hash {
|
|
return p.Get().(Hash)
|
|
}
|
|
|
|
// SHA1Pool defines a pool of SHA1 hashes
|
|
type SHA1Pool interface {
|
|
SHA1() Hash
|
|
}
|
|
|
|
// NewSHA1Pool returns a new SHA1Pool implementation
|
|
func NewSHA1Pool() SHA1Pool {
|
|
p := &sha1Pool{}
|
|
p.New = func() interface{} {
|
|
return &poolHash{
|
|
Hash: sha1.New(),
|
|
pool: &p.Pool,
|
|
}
|
|
}
|
|
return p
|
|
}
|
|
|
|
// sha1Pool is our SHA1Pool implementation, simply wrapping sync.Pool
|
|
type sha1Pool struct {
|
|
sync.Pool
|
|
}
|
|
|
|
func (p *sha1Pool) SHA1() Hash {
|
|
return p.Get().(Hash)
|
|
}
|
|
|
|
// MD5Pool defines a pool of MD5 hashes
|
|
type MD5Pool interface {
|
|
MD5() Hash
|
|
}
|
|
|
|
// NewMD5Pool returns a new MD5 implementation
|
|
func NewMD5Pool() MD5Pool {
|
|
p := &md5Pool{}
|
|
p.New = func() interface{} {
|
|
return &poolHash{
|
|
Hash: md5.New(),
|
|
pool: &p.Pool,
|
|
}
|
|
}
|
|
return p
|
|
}
|
|
|
|
// md5Pool is our MD5Pool implementation, simply wrapping sync.Pool
|
|
type md5Pool struct {
|
|
sync.Pool
|
|
}
|
|
|
|
func (p *md5Pool) MD5() Hash {
|
|
return p.Get().(Hash)
|
|
}
|