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extract VolumeFileScanner for ScanVolumeFile

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This commit is contained in:
bingoohuang
2019-01-16 17:48:59 +08:00
parent 27093bc2e5
commit 6ddfaf33cb
6 changed files with 190 additions and 130 deletions
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32
unmaintained/see_dat/see_dat.go
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@@ -12,21 +12,31 @@ var (
volumeId = flag.Int("volumeId", -1, "a volume id. The volume should already exist in the dir. The volume index file should not exist.")
)
type VolumeFileScanner4SeeDat struct {
version storage.Version
}
func (scanner *VolumeFileScanner4SeeDat) VisitSuperBlock(superBlock storage.SuperBlock) error {
scanner.version = superBlock.Version()
return nil
}
func (scanner *VolumeFileScanner4SeeDat) ReadNeedleBody() bool {
return false
}
func (scanner *VolumeFileScanner4SeeDat) VisitNeedle(n *storage.Needle, offset int64) error {
glog.V(0).Infof("%d,%s%x offset %d size %d cookie %x", *volumeId, n.Id, n.Cookie, offset, n.Size, n.Cookie)
return nil
}
func main() {
flag.Parse()
var version storage.Version
vid := storage.VolumeId(*volumeId)
err := storage.ScanVolumeFile(*volumePath, *volumeCollection, vid,
storage.NeedleMapInMemory,
func(superBlock storage.SuperBlock) error {
version = superBlock.Version()
return nil
}, false, func(n *storage.Needle, offset int64) error {
glog.V(0).Infof("%d,%s%x offset %d size %d cookie %x",
*volumeId, n.Id, n.Cookie, offset, n.Size, n.Cookie)
return nil
})
scanner := &VolumeFileScanner4SeeDat{}
err := storage.ScanVolumeFile(*volumePath, *volumeCollection, vid, storage.NeedleMapInMemory, scanner)
if err != nil {
glog.Fatalf("Reading Volume File [ERROR] %s\n", err)
}