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buffer_util.go
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/
buffer_util.go
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/*
* Copyright (c) 2008-2021, Hazelcast, Inc. All Rights Reserved.
*
* Licensed 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 serialization
import (
"encoding/binary"
"math"
)
func WriteInt32(buf []byte, pos int32, v int32, isBigEndian bool) {
s := buf[pos:]
if isBigEndian {
binary.BigEndian.PutUint32(s, uint32(v))
} else {
binary.LittleEndian.PutUint32(s, uint32(v))
}
}
func ReadInt32(buf []byte, pos int32, isBigEndian bool) int32 {
if isBigEndian {
return int32(binary.BigEndian.Uint32(buf[pos:]))
}
return int32(binary.LittleEndian.Uint32(buf[pos:]))
}
func WriteFloat32(buf []byte, pos int32, v float32, isBigEndian bool) {
s := buf[pos:]
if isBigEndian {
binary.BigEndian.PutUint32(s, math.Float32bits(v))
} else {
binary.LittleEndian.PutUint32(s, math.Float32bits(v))
}
}
func ReadFloat32(buf []byte, pos int32, isBigEndian bool) float32 {
if isBigEndian {
return math.Float32frombits(binary.BigEndian.Uint32(buf[pos:]))
}
return math.Float32frombits(binary.LittleEndian.Uint32(buf[pos:]))
}
func WriteFloat64(buf []byte, pos int32, v float64, isBigEndian bool) {
s := buf[pos:]
if isBigEndian {
binary.BigEndian.PutUint64(s, math.Float64bits(v))
} else {
binary.LittleEndian.PutUint64(s, math.Float64bits(v))
}
}
func ReadFloat64(buf []byte, pos int32, isBigEndian bool) float64 {
if isBigEndian {
return math.Float64frombits(binary.BigEndian.Uint64(buf[pos:]))
}
return math.Float64frombits(binary.LittleEndian.Uint64(buf[pos:]))
}
func WriteBool(buf []byte, pos int32, v bool) {
var b byte = 1
if v {
buf[pos] = b
} else {
b = 0
buf[pos] = b
}
}
func ReadBool(buf []byte, pos int32) bool {
return buf[pos] == 1
}
func WriteUInt8(buf []byte, pos int32, v uint8) {
buf[pos] = v
}
func ReadUInt8(buf []byte, pos int32) uint8 {
return buf[pos]
}
func WriteUInt16(buf []byte, pos int32, v uint16, isBigEndian bool) {
s := buf[pos:]
if isBigEndian {
binary.BigEndian.PutUint16(s, v)
} else {
binary.LittleEndian.PutUint16(s, v)
}
}
func ReadUInt16(buf []byte, pos int32, isBigEndian bool) uint16 {
if isBigEndian {
return binary.BigEndian.Uint16(buf[pos:])
}
return binary.LittleEndian.Uint16(buf[pos:])
}
func WriteInt16(buf []byte, pos int32, v int16, isBigEndian bool) {
s := buf[pos:]
if isBigEndian {
binary.BigEndian.PutUint16(s, uint16(v))
} else {
binary.LittleEndian.PutUint16(s, uint16(v))
}
}
func ReadInt16(buf []byte, pos int32, isBigEndian bool) int16 {
if isBigEndian {
return int16(binary.BigEndian.Uint16(buf[pos:]))
}
return int16(binary.LittleEndian.Uint16(buf[pos:]))
}
func WriteInt64(buf []byte, pos int32, v int64, isBigEndian bool) {
s := buf[pos:]
if isBigEndian {
binary.BigEndian.PutUint64(s, uint64(v))
} else {
binary.LittleEndian.PutUint64(s, uint64(v))
}
}
func ReadInt64(buf []byte, pos int32, isBigEndian bool) int64 {
if isBigEndian {
return int64(binary.BigEndian.Uint64(buf[pos:]))
}
return int64(binary.LittleEndian.Uint64(buf[pos:]))
}