func (c *KvHaveCache) NoteBlobExists(br blob.Ref, size uint32) {
if !br.Valid() {
return
}
if size < 0 {
log.Fatalf("Got a negative blob size to note in have cache for %v", br)
}
binBr, _ := br.MarshalBinary()
binVal := []byte(strconv.Itoa(int(size)))
cachelog.Printf("Adding to have cache %v: %q", br, binVal)
if err := c.db.Put(binBr, binVal, nil); err != nil {
log.Fatalf("Could not write %v in have cache: %v", br, err)
}
}
func (c *KvHaveCache) StatBlobCache(br blob.Ref) (size int64, ok bool) {
if !br.Valid() {
return
}
binBr, _ := br.MarshalBinary()
binVal, err := c.db.Get(nil, binBr)
if err != nil {
log.Fatalf("Could not query have cache %v for %v: %v", c.filename, br, err)
}
if binVal == nil {
cachelog.Printf("have cache MISS on %v", br)
return
}
val, err := strconv.Atoi(string(binVal))
if err != nil {
log.Fatalf("Could not decode have cache binary value for %v: %v", br, err)
}
cachelog.Printf("have cache HIT on %v", br)
return int64(val), true
}
func (c *KvHaveCache) NoteBlobExists(br blob.Ref, size int64) {
if !br.Valid() {
return
}
if size < 0 {
log.Fatalf("Got a negative blob size to note in have cache for %v", br)
}
binBr, _ := br.MarshalBinary()
binVal := []byte(strconv.Itoa(int(size)))
cachelog.Printf("Adding to have cache %v: %q", br, binVal)
_, _, err := c.db.Put(nil, binBr,
func(binBr, old []byte) ([]byte, bool, error) {
// We do not overwrite dups
if old != nil {
return nil, false, nil
}
return binVal, true, nil
})
if err != nil {
log.Fatalf("Could not write %v in have cache: %v", br, err)
}
}
func (c *KvHaveCache) StatBlobCache(br blob.Ref) (size uint32, ok bool) {
if !br.Valid() {
return
}
binBr, _ := br.MarshalBinary()
binVal, err := c.db.Get(binBr, nil)
if err != nil {
if err == leveldb.ErrNotFound {
cachelog.Printf("have cache MISS on %v", br)
return
}
log.Fatalf("Could not query have cache %v for %v: %v", c.filename, br, err)
}
val, err := strconv.ParseUint(string(binVal), 10, 32)
if err != nil {
log.Fatalf("Could not decode have cache binary value for %v: %v", br, err)
}
if val < 0 {
log.Fatalf("Error decoding have cache binary value for %v: size=%d", br, val)
}
cachelog.Printf("have cache HIT on %v", br)
return uint32(val), true
}