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
|
package htcat
import (
"fmt"
"net/http"
)
type httpFragGen struct {
curPos int64
totalSize int64
targetFragSize int64
}
type httpFrag struct {
*fragment
header http.Header
size int64
}
func (fg *httpFragGen) hasNext() bool {
return fg.curPos < fg.totalSize
}
func (fg *httpFragGen) nextFragment(f *fragment) *httpFrag {
// Determine fragment size.
var fragSize int64
remaining := fg.totalSize - fg.curPos
if remaining < fg.targetFragSize {
fragSize = remaining
} else {
fragSize = fg.targetFragSize
}
hf := httpFrag{
fragment: f,
header: http.Header{
"Range": {fmt.Sprintf("bytes=%d-%d",
fg.curPos, fg.curPos+fragSize-1)},
},
size: fragSize,
}
fg.curPos += fragSize
return &hf
}
|
