frostfs-api-go/container/v2/marshal.go

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package v2
import (
"encoding/binary"
"math/bits"
"github.com/pkg/errors"
)
// StableMarshal marshals auto-generated container structure into
// protobuf-compatible stable byte sequence.
func (m *Container) StableMarshal(buf []byte) ([]byte, error) {
if m == nil {
return []byte{}, nil
}
if buf == nil {
buf = make([]byte, m.StableSize())
}
var (
i, n, offset int
)
// Write owner id field.
if m.OwnerId != nil {
buf[i] = 0x0A // id:0x1 << 3 | wiretype:0x2
n = m.OwnerId.StableSize()
offset = binary.PutUvarint(buf[i+1:], uint64(n))
_, err := m.OwnerId.StableMarshal(buf[i+1+offset:])
if err != nil {
return nil, errors.Wrapf(err, "can't marshal owner id")
}
i += 1 + offset + n
}
// Write salt field.
buf[i] = 0x12 // id:0x2 << 3 | wiretype:0x2
offset = binary.PutUvarint(buf[i+1:], uint64(len(m.Nonce)))
n = copy(buf[i+1+offset:], m.Nonce)
i += 1 + offset + n
// Write basic acl field.
buf[i] = 0x18 // id:0x3 << 3 | wiretype:0x0
offset = binary.PutUvarint(buf[i+1:], uint64(m.BasicAcl))
i += 1 + offset
// Write attributes field.
for j := range m.Attributes {
buf[i] = 0x22 // id:0x4 << 3 | wiretype:0x2
n = m.Attributes[j].StableSize()
offset = binary.PutUvarint(buf[i+1:], uint64(n))
_, err := m.Attributes[j].StableMarshal(buf[i+1+offset:])
if err != nil {
return nil, errors.Wrapf(err, "can't marshal attribute %v",
m.Attributes[i].Key)
}
i += 1 + offset + n
}
// Write placement rule field.
if m.Rules != nil {
buf[i] = 0x2A // id:0x5 << 3 | wiretype:0x2
n = m.Rules.StableSize()
offset = binary.PutUvarint(buf[i+1:], uint64(n))
_, err := m.Rules.StableMarshal(buf[i+1+offset:])
if err != nil {
return nil, errors.Wrapf(err, "can't marshal attribute %v",
m.Attributes[i].Key)
}
}
return buf, nil
}
func (m *Container) StableSize() int {
if m == nil {
return 0
}
var (
ln, size int
)
if m.OwnerId != nil {
ln = m.OwnerId.StableSize()
}
size += 1 + uvarIntSize(uint64(ln)) + ln // wiretype + bytes length + bytes
ln = len(m.Nonce) // size of salt field
size += 1 + uvarIntSize(uint64(ln)) + ln // wiretype + bytes length + bytes
// size of basic acl field
size += 1 + uvarIntSize(uint64(m.BasicAcl)) // wiretype + varint
// size of attributes
for i := range m.Attributes {
ln = m.Attributes[i].StableSize()
size += 1 + uvarIntSize(uint64(ln)) + ln // wiretype + size of struct + struct
}
// size of placement rule
if m.Rules != nil {
ln = m.Rules.StableSize()
size += 1 + uvarIntSize(uint64(ln)) + ln // wiretype + size of struct + struct
}
return size
}
func (m *Container_Attribute) StableMarshal(buf []byte) ([]byte, error) {
if m == nil {
return []byte{}, nil
}
if buf == nil {
buf = make([]byte, m.StableSize())
}
var (
i, n, offset int
)
// Write key field.
buf[i] = 0x0A // id:0x1 << 3 | wiretype:0x2
offset = binary.PutUvarint(buf[i+1:], uint64(len(m.Key)))
n = copy(buf[i+1+offset:], m.Key)
i += 1 + offset + n
// Write value field.
buf[i] = 0x12 // id:0x2 << 3 | wiretype:0x2
offset = binary.PutUvarint(buf[i+1:], uint64(len(m.Value)))
copy(buf[i+1+offset:], m.Value)
return buf, nil
}
func (m *Container_Attribute) StableSize() int {
if m == nil {
return 0
}
var (
ln, size int
)
ln = len(m.Key) // size of key field
size += 1 + uvarIntSize(uint64(ln)) + ln // wiretype + size of string + string
ln = len(m.Value) // size of value field
size += 1 + uvarIntSize(uint64(ln)) + ln // wiretype + size of string + string
return size
}
func (m *PutRequest_Body) StableMarshal(buf []byte) ([]byte, error) {
if m == nil {
return []byte{}, nil
}
if buf == nil {
buf = make([]byte, m.StableSize())
}
var (
i, n, offset int
)
// Write container field.
if m.Container != nil {
buf[i] = 0x0A // id:0x1 << 3 | wiretype:0x2
n = m.Container.StableSize()
offset = binary.PutUvarint(buf[i+1:], uint64(n))
_, err := m.Container.StableMarshal(buf[i+1+offset:])
if err != nil {
return nil, errors.Wrapf(err, "can't marshal container")
}
i += 1 + offset + n
}
// Write public key field.
buf[i] = 0x12 // id:0x2 << 3 | wiretype:0x2
offset = binary.PutUvarint(buf[i+1:], uint64(len(m.PublicKey)))
n = copy(buf[i+1+offset:], m.PublicKey)
i += 1 + offset + n
// Write signature field.
buf[i] = 0x1A // id:0x3 << 3 | wiretype:0x2
offset = binary.PutUvarint(buf[i+1:], uint64(len(m.Signature)))
copy(buf[i+1+offset:], m.Signature)
return buf, nil
}
func (m *PutRequest_Body) StableSize() int {
if m == nil {
return 0
}
var (
ln, size int
)
if m.Container != nil {
ln = m.Container.StableSize()
size += 1 + uvarIntSize(uint64(ln)) + ln // wiretype + size of string + string
}
ln = len(m.PublicKey)
size += 1 + uvarIntSize(uint64(ln)) + ln // wiretype + size of string + string
ln = len(m.Signature)
size += 1 + uvarIntSize(uint64(ln)) + ln // wiretype + size of string + string
return size
}
// uvarIntSize returns length of varint byte sequence for uint64 value 'x'.
func uvarIntSize(x uint64) int {
return (bits.Len64(x|1) + 6) / 7
}