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use constant NeedleIndexSize instead of the number 16

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This commit is contained in:
Chris Lu
2018-07-07 00:50:14 -07:00
parent defcd4edc5
commit aba1fe01b3
1 changed files with 3 additions and 3 deletions
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6
weed/storage/needle_map_memory.go
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@@ -74,7 +74,7 @@ func doLoading(file *os.File, nm *NeedleMap) (*NeedleMap, error) {
// stops with the error returned by the fn function // stops with the error returned by the fn function
func WalkIndexFile(r *os.File, fn func(key uint64, offset, size uint32) error) error { func WalkIndexFile(r *os.File, fn func(key uint64, offset, size uint32) error) error {
var readerOffset int64 var readerOffset int64
bytes := make([]byte, 16*RowsToRead) bytes := make([]byte, NeedleIndexSize*RowsToRead)
count, e := r.ReadAt(bytes, readerOffset) count, e := r.ReadAt(bytes, readerOffset)
glog.V(3).Infoln("file", r.Name(), "readerOffset", readerOffset, "count", count, "e", e) glog.V(3).Infoln("file", r.Name(), "readerOffset", readerOffset, "count", count, "e", e)
readerOffset += int64(count) readerOffset += int64(count)
@@ -85,8 +85,8 @@ func WalkIndexFile(r *os.File, fn func(key uint64, offset, size uint32) error) e
) )
for count > 0 && e == nil || e == io.EOF { for count > 0 && e == nil || e == io.EOF {
for i = 0; i+16 <= count; i += 16 { for i = 0; i+NeedleIndexSize <= count; i += NeedleIndexSize {
key, offset, size = idxFileEntry(bytes[i : i+16]) key, offset, size = idxFileEntry(bytes[i: i+NeedleIndexSize])
if e = fn(key, offset, size); e != nil { if e = fn(key, offset, size); e != nil {
return e return e
} }