crc32.MakeTable

本文整理汇总了Golang中hash/crc32.MakeTable函数的典型用法代码示例。如果您正苦于以下问题：Golang MakeTable函数的具体用法？Golang MakeTable怎么用？Golang MakeTable使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。

在下文中一共展示了MakeTable函数的20个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于我们的系统推荐出更棒的Golang代码示例。

示例1: GetHash

func GetHash(a string) (hash.Hash, error) {
    var h hash.Hash
    switch a {
    case "adler32":
        h = adler32.New()
    case "crc32", "crc32ieee":
        h = crc32.New(crc32.MakeTable(crc32.IEEE))
    case "crc32castagnoli":
        h = crc32.New(crc32.MakeTable(crc32.Castagnoli))
    case "crc32koopman":
        h = crc32.New(crc32.MakeTable(crc32.Koopman))
    case "crc64", "crc64iso":
        h = crc64.New(crc64.MakeTable(crc64.ISO))
    case "crc64ecma":
        h = crc64.New(crc64.MakeTable(crc64.ECMA))
    case "fnv", "fnv32":
        h = fnv.New32()
    case "fnv32a":
        h = fnv.New32a()
    case "fnv64":
        h = fnv.New64()
    case "fnv64a":
        h = fnv.New64a()
    case "hmac", "hmacsha256":
        h = hmac.New(sha256.New, []byte(key))
    case "hmacmd5":
        h = hmac.New(md5.New, []byte(key))
    case "hmacsha1":
        h = hmac.New(sha1.New, []byte(key))
    case "hmacsha512":
        h = hmac.New(sha512.New, []byte(key))
    case "md4":
        h = md4.New()
    case "md5":
        h = md5.New()
    case "ripemd160":
        h = ripemd160.New()
    case "sha1":
        h = sha1.New()
    case "sha224":
        h = sha256.New224()
    case "sha256":
        h = sha256.New()
    case "sha384":
        h = sha512.New384()
    case "sha512":
        h = sha512.New()
    default:
        return nil, errors.New("Invalid algorithm")
    }
    return h, nil
}

开发者ID:patrickmn，项目名称:picugen，代码行数:52，代码来源:picugen.go

示例2: LockPartition

func LockPartition(pg *sql.DB, ns string, max uint64) (uint64, error) {
    tab := crc32.MakeTable(crc32.IEEE)
    for {
        var p uint64
        for p = 0; p < max; p++ {
            pId := fmt.Sprintf("%s.%d", ns, p)
            check := crc32.Checksum([]byte(pId), tab)
            rows, err := pg.Query("select pg_try_advisory_lock($1)", check)
            if err != nil {
                continue
            }
            for rows.Next() {
                var result sql.NullBool
                rows.Scan(&result)
                if result.Valid && result.Bool {
                    fmt.Printf("at=%q partition=%d max=%d\n",
                        "acquired-lock", p, max)
                    rows.Close()
                    return p, nil
                }
            }
            rows.Close()
        }
        fmt.Printf("at=%q\n", "waiting-for-partition-lock")
        time.Sleep(time.Second * 10)
    }
    return 0, errors.New("Unable to lock partition.")
}

开发者ID:ericfode，项目名称:l2met，代码行数:28，代码来源:utils.go

示例3: Hash

func (b *backend) Hash(ignores map[IgnoreKey]struct{}) (uint32, error) {
    h := crc32.New(crc32.MakeTable(crc32.Castagnoli))

    b.mu.RLock()
    defer b.mu.RUnlock()
    err := b.db.View(func(tx *bolt.Tx) error {
        c := tx.Cursor()
        for next, _ := c.First(); next != nil; next, _ = c.Next() {
            b := tx.Bucket(next)
            if b == nil {
                return fmt.Errorf("cannot get hash of bucket %s", string(next))
            }
            h.Write(next)
            b.ForEach(func(k, v []byte) error {
                bk := IgnoreKey{Bucket: string(next), Key: string(k)}
                if _, ok := ignores[bk]; !ok {
                    h.Write(k)
                    h.Write(v)
                }
                return nil
            })
        }
        return nil
    })

    if err != nil {
        return 0, err
    }

    return h.Sum32(), nil
}

开发者ID:CliffYuan，项目名称:etcd，代码行数:31，代码来源:backend.go

示例4: crc32_castagnoli

func (e *Engine) crc32_castagnoli() error {
    data, err := computeHash(crc32.New(crc32.MakeTable(crc32.Castagnoli)), e.stack.Pop())
    if err == nil {
        e.stack.Push(data)
    }
    return err
}

开发者ID:ancientlore，项目名称:hashsrv，代码行数:7，代码来源:hash.go

示例5: crc32_koopman

func (e *Engine) crc32_koopman() error {
    data, err := computeHash(crc32.New(crc32.MakeTable(crc32.Koopman)), e.stack.Pop())
    if err == nil {
        e.stack.Push(data)
    }
    return err
}

开发者ID:ancientlore，项目名称:hashsrv，代码行数:7，代码来源:hash.go