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// Protocol Buffers for Go with Gadgets
//
// Copyright (c) 2013, The GoGo Authors. All rights reserved.
// http://github.com/gogo/protobuf
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
package test
import (
"bytes"
"encoding/hex"
"encoding/json"
)
func PutLittleEndianUint64(b []byte, offset int, v uint64) {
b[offset] = byte(v)
b[offset+1] = byte(v >> 8)
b[offset+2] = byte(v >> 16)
b[offset+3] = byte(v >> 24)
b[offset+4] = byte(v >> 32)
b[offset+5] = byte(v >> 40)
b[offset+6] = byte(v >> 48)
b[offset+7] = byte(v >> 56)
}
type Uuid []byte
func (uuid Uuid) Bytes() []byte {
return uuid
}
func (uuid Uuid) Marshal() ([]byte, error) {
if len(uuid) == 0 {
return nil, nil
}
return []byte(uuid), nil
}
func (uuid Uuid) MarshalTo(data []byte) (n int, err error) {
if len(uuid) == 0 {
return 0, nil
}
copy(data, uuid)
return 16, nil
}
func (uuid *Uuid) Unmarshal(data []byte) error {
if len(data) == 0 {
uuid = nil
return nil
}
id := Uuid(make([]byte, 16))
copy(id, data)
*uuid = id
return nil
}
func (uuid *Uuid) Size() int {
if uuid == nil {
return 0
}
if len(*uuid) == 0 {
return 0
}
return 16
}
func (uuid Uuid) MarshalJSON() ([]byte, error) {
s := hex.EncodeToString([]byte(uuid))
return json.Marshal(s)
}
func (uuid *Uuid) UnmarshalJSON(data []byte) error {
var s string
err := json.Unmarshal(data, &s)
if err != nil {
return err
}
d, err := hex.DecodeString(s)
if err != nil {
return err
}
*uuid = Uuid(d)
return nil
}
func (uuid Uuid) Equal(other Uuid) bool {
return bytes.Equal(uuid[0:], other[0:])
}
func (uuid Uuid) Compare(other Uuid) int {
return bytes.Compare(uuid[0:], other[0:])
}
type int63 interface {
Int63() int64
}
func NewPopulatedUuid(r int63) *Uuid {
u := RandV4(r)
return &u
}
func RandV4(r int63) Uuid {
uuid := make(Uuid, 16)
uuid.RandV4(r)
return uuid
}
func (uuid Uuid) RandV4(r int63) {
PutLittleEndianUint64(uuid, 0, uint64(r.Int63()))
PutLittleEndianUint64(uuid, 8, uint64(r.Int63()))
uuid[6] = (uuid[6] & 0xf) | 0x40
uuid[8] = (uuid[8] & 0x3f) | 0x80
}