1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
|
// 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 arrow
import (
"unsafe"
"github.com/apache/arrow-go/v18/arrow/endian"
)
var TimestampTraits timestampTraits
const (
// TimestampSizeBytes specifies the number of bytes required to store a single Timestamp in memory
TimestampSizeBytes = int(unsafe.Sizeof(Timestamp(0)))
)
type timestampTraits struct{}
// BytesRequired returns the number of bytes required to store n elements in memory.
func (timestampTraits) BytesRequired(n int) int { return TimestampSizeBytes * n }
func (timestampTraits) PutValue(b []byte, v Timestamp) {
endian.Native.PutUint64(b, uint64(v))
}
// CastFromBytes reinterprets the slice b to a slice of type Timestamp.
//
// NOTE: len(b) must be a multiple of TimestampSizeBytes.
func (timestampTraits) CastFromBytes(b []byte) []Timestamp {
return GetData[Timestamp](b)
}
// CastToBytes reinterprets the slice b to a slice of bytes.
func (timestampTraits) CastToBytes(b []Timestamp) []byte {
return GetBytes(b)
}
// Copy copies src to dst.
func (timestampTraits) Copy(dst, src []Timestamp) { copy(dst, src) }
|
