forked from apache/beam
/
int.go
71 lines (62 loc) · 2.06 KB
/
int.go
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// Licensed to the Apache Software Foundation (ASF) under one or more
// contributor license agreements. See the NOTICE file distributed with
// this work for additional information regarding copyright ownership.
// The ASF licenses this file to You under the Apache License, Version 2.0
// (the "License"); you may not use this file except in compliance with
// the License. You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package coder
import (
"encoding/binary"
"io"
"github.com/apache/beam/sdks/go/pkg/beam/core/util/ioutilx"
)
// EncodeUint64 encodes an uint64 in big endian format.
func EncodeUint64(value uint64, w io.Writer) error {
ret := make([]byte, 8)
binary.BigEndian.PutUint64(ret, value)
_, err := w.Write(ret)
return err
}
// DecodeUint64 decodes an uint64 in big endian format.
func DecodeUint64(r io.Reader) (uint64, error) {
data, err := ioutilx.ReadN(r, 8)
if err != nil {
return 0, err
}
return binary.BigEndian.Uint64(data), nil
}
// EncodeUint32 encodes an uint32 in big endian format.
func EncodeUint32(value uint32, w io.Writer) error {
ret := make([]byte, 4)
binary.BigEndian.PutUint32(ret, value)
_, err := w.Write(ret)
return err
}
// DecodeUint32 decodes an uint32 in big endian format.
func DecodeUint32(r io.Reader) (uint32, error) {
data, err := ioutilx.ReadN(r, 4)
if err != nil {
return 0, err
}
return binary.BigEndian.Uint32(data), nil
}
// EncodeInt32 encodes an int32 in big endian format.
func EncodeInt32(value int32, w io.Writer) error {
return EncodeUint32(uint32(value), w)
}
// DecodeInt32 decodes an int32 in big endian format.
func DecodeInt32(r io.Reader) (int32, error) {
ret, err := DecodeUint32(r)
if err != nil {
return 0, err
}
return int32(ret), nil
}