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add TTL support

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The volume TTL and file TTL are not necessarily the same. as long as
file TTL is smaller than volume TTL, it'll be fine.

volume TTL is used when assigning file id, e.g.
http://.../dir/assign?ttl=3h

file TTL is used when uploading
This commit is contained in:
Chris Lu
2014-09-20 12:38:59 -07:00
parent a092794804
commit b9aee2defb
31 changed files with 416 additions and 105 deletions
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9
go/storage/needle.go
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@@ -38,12 +38,13 @@ type Needle struct {
MimeSize uint8 //version2
Mime []byte `comment:"maximum 256 characters"` //version2
LastModified uint64 //only store LastModifiedBytesLength bytes, which is 5 bytes to disk
Ttl *TTL
Checksum CRC `comment:"CRC32 to check integrity"`
Padding []byte `comment:"Aligned to 8 bytes"`
}
func ParseUpload(r *http.Request) (fileName string, data []byte, mimeType string, isGzipped bool, modifiedTime uint64, e error) {
func ParseUpload(r *http.Request) (fileName string, data []byte, mimeType string, isGzipped bool, modifiedTime uint64, ttl *TTL, e error) {
form, fe := r.MultipartReader()
if fe != nil {
glog.V(0).Infoln("MultipartReader [ERROR]", fe)
@@ -92,12 +93,13 @@ func ParseUpload(r *http.Request) (fileName string, data []byte, mimeType string
fileName = fileName[:len(fileName)-3]
}
modifiedTime, _ = strconv.ParseUint(r.FormValue("ts"), 10, 64)
ttl, _ = ReadTTL(r.FormValue("ttl"))
return
}
func NewNeedle(r *http.Request, fixJpgOrientation bool) (n *Needle, e error) {
fname, mimeType, isGzipped := "", "", false
n = new(Needle)
fname, n.Data, mimeType, isGzipped, n.LastModified, e = ParseUpload(r)
fname, n.Data, mimeType, isGzipped, n.LastModified, n.Ttl, e = ParseUpload(r)
if e != nil {
return
}
@@ -116,6 +118,9 @@ func NewNeedle(r *http.Request, fixJpgOrientation bool) (n *Needle, e error) {
n.LastModified = uint64(time.Now().Unix())
}
n.SetHasLastModifiedDate()
if n.Ttl != nil {
n.SetHasTtl()
}
if fixJpgOrientation {
loweredName := strings.ToLower(fname)