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Merge pull request #2320 from karalabe/update-goleveldb 

Godeps: update goleveldb to fix a compaction data race
This commit is contained in:
Jeffrey Wilcke 2016-03-10 12:24:34 +01:00
parent edd7aa054c ea19e61fba
commit 6d3cd03a03
27 changed files with 194 additions and 2184 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

24
Godeps/Godeps.json generated
View File

@ -140,51 +140,51 @@
},
{
"ImportPath": "github.com/syndtr/goleveldb/leveldb",
"Rev": "e7e6f5b5ef25adb580feac515f9ccec514d0bda8"
"Rev": "ad0d8b2ab58a55ed5c58073aa46451d5e1ca1280"
},
{
"ImportPath": "github.com/syndtr/goleveldb/leveldb/cache",
"Rev": "e7e6f5b5ef25adb580feac515f9ccec514d0bda8"
"Rev": "ad0d8b2ab58a55ed5c58073aa46451d5e1ca1280"
},
{
"ImportPath": "github.com/syndtr/goleveldb/leveldb/comparer",
"Rev": "e7e6f5b5ef25adb580feac515f9ccec514d0bda8"
"Rev": "ad0d8b2ab58a55ed5c58073aa46451d5e1ca1280"
},
{
"ImportPath": "github.com/syndtr/goleveldb/leveldb/errors",
"Rev": "e7e6f5b5ef25adb580feac515f9ccec514d0bda8"
"Rev": "ad0d8b2ab58a55ed5c58073aa46451d5e1ca1280"
},
{
"ImportPath": "github.com/syndtr/goleveldb/leveldb/filter",
"Rev": "e7e6f5b5ef25adb580feac515f9ccec514d0bda8"
"Rev": "ad0d8b2ab58a55ed5c58073aa46451d5e1ca1280"
},
{
"ImportPath": "github.com/syndtr/goleveldb/leveldb/iterator",
"Rev": "e7e6f5b5ef25adb580feac515f9ccec514d0bda8"
"Rev": "ad0d8b2ab58a55ed5c58073aa46451d5e1ca1280"
},
{
"ImportPath": "github.com/syndtr/goleveldb/leveldb/journal",
"Rev": "e7e6f5b5ef25adb580feac515f9ccec514d0bda8"
"Rev": "ad0d8b2ab58a55ed5c58073aa46451d5e1ca1280"
},
{
"ImportPath": "github.com/syndtr/goleveldb/leveldb/memdb",
"Rev": "e7e6f5b5ef25adb580feac515f9ccec514d0bda8"
"Rev": "ad0d8b2ab58a55ed5c58073aa46451d5e1ca1280"
},
{
"ImportPath": "github.com/syndtr/goleveldb/leveldb/opt",
"Rev": "e7e6f5b5ef25adb580feac515f9ccec514d0bda8"
"Rev": "ad0d8b2ab58a55ed5c58073aa46451d5e1ca1280"
},
{
"ImportPath": "github.com/syndtr/goleveldb/leveldb/storage",
"Rev": "e7e6f5b5ef25adb580feac515f9ccec514d0bda8"
"Rev": "ad0d8b2ab58a55ed5c58073aa46451d5e1ca1280"
},
{
"ImportPath": "github.com/syndtr/goleveldb/leveldb/table",
"Rev": "e7e6f5b5ef25adb580feac515f9ccec514d0bda8"
"Rev": "ad0d8b2ab58a55ed5c58073aa46451d5e1ca1280"
},
{
"ImportPath": "github.com/syndtr/goleveldb/leveldb/util",
"Rev": "e7e6f5b5ef25adb580feac515f9ccec514d0bda8"
"Rev": "ad0d8b2ab58a55ed5c58073aa46451d5e1ca1280"
},
{
"ImportPath": "golang.org/x/crypto/pbkdf2",

39
Godeps/_workspace/src/github.com/syndtr/goleveldb/leveldb/batch.go generated vendored
View File

@ -15,6 +15,7 @@ import (
"github.com/syndtr/goleveldb/leveldb/storage"
)
// ErrBatchCorrupted records reason of batch corruption.
type ErrBatchCorrupted struct {
Reason string
}
@ -32,6 +33,7 @@ const (
batchGrowRec = 3000
)
// BatchReplay wraps basic batch operations.
type BatchReplay interface {
Put(key, value []byte)
Delete(key []byte)
@ -68,20 +70,20 @@ func (b *Batch) grow(n int) {
}
}
func (b *Batch) appendRec(kt kType, key, value []byte) {
func (b *Batch) appendRec(kt keyType, key, value []byte) {
n := 1 + binary.MaxVarintLen32 + len(key)
if kt == ktVal {
if kt == keyTypeVal {
n += binary.MaxVarintLen32 + len(value)
}
b.grow(n)
off := len(b.data)
data := b.data[:off+n]
data[off] = byte(kt)
off += 1
off++
off += binary.PutUvarint(data[off:], uint64(len(key)))
copy(data[off:], key)
off += len(key)
if kt == ktVal {
if kt == keyTypeVal {
off += binary.PutUvarint(data[off:], uint64(len(value)))
copy(data[off:], value)
off += len(value)
@ -95,13 +97,13 @@ func (b *Batch) appendRec(kt kType, key, value []byte) {
// Put appends 'put operation' of the given key/value pair to the batch.
// It is safe to modify the contents of the argument after Put returns.
func (b *Batch) Put(key, value []byte) {
b.appendRec(ktVal, key, value)
b.appendRec(keyTypeVal, key, value)
}
// Delete appends 'delete operation' of the given key to the batch.
// It is safe to modify the contents of the argument after Delete returns.
func (b *Batch) Delete(key []byte) {
b.appendRec(ktDel, key, nil)
b.appendRec(keyTypeDel, key, nil)
}
// Dump dumps batch contents. The returned slice can be loaded into the
@ -122,11 +124,11 @@ func (b *Batch) Load(data []byte) error {
// Replay replays batch contents.
func (b *Batch) Replay(r BatchReplay) error {
return b.decodeRec(func(i int, kt kType, key, value []byte) error {
return b.decodeRec(func(i int, kt keyType, key, value []byte) error {
switch kt {
case ktVal:
case keyTypeVal:
r.Put(key, value)
case ktDel:
case keyTypeDel:
r.Delete(key)
}
return nil
@ -195,18 +197,19 @@ func (b *Batch) decode(prevSeq uint64, data []byte) error {
return nil
}
func (b *Batch) decodeRec(f func(i int, kt kType, key, value []byte) error) error {
func (b *Batch) decodeRec(f func(i int, kt keyType, key, value []byte) error) error {
off := batchHdrLen
for i := 0; i < b.rLen; i++ {
if off >= len(b.data) {
return newErrBatchCorrupted("invalid records length")
}
kt := kType(b.data[off])
if kt > ktVal {
kt := keyType(b.data[off])
if kt > keyTypeVal {
panic(kt)
return newErrBatchCorrupted("bad record: invalid type")
}
off += 1
off++
x, n := binary.Uvarint(b.data[off:])
off += n
@ -216,7 +219,7 @@ func (b *Batch) decodeRec(f func(i int, kt kType, key, value []byte) error) erro
key := b.data[off : off+int(x)]
off += int(x)
var value []byte
if kt == ktVal {
if kt == keyTypeVal {
x, n := binary.Uvarint(b.data[off:])
off += n
if n <= 0 || off+int(x) > len(b.data) {
@ -236,8 +239,8 @@ func (b *Batch) decodeRec(f func(i int, kt kType, key, value []byte) error) erro
func (b *Batch) memReplay(to *memdb.DB) error {
var ikScratch []byte
return b.decodeRec(func(i int, kt kType, key, value []byte) error {
ikScratch = makeIkey(ikScratch, key, b.seq+uint64(i), kt)
return b.decodeRec(func(i int, kt keyType, key, value []byte) error {
ikScratch = makeInternalKey(ikScratch, key, b.seq+uint64(i), kt)
return to.Put(ikScratch, value)
})
}
@ -251,8 +254,8 @@ func (b *Batch) memDecodeAndReplay(prevSeq uint64, data []byte, to *memdb.DB) er
func (b *Batch) revertMemReplay(to *memdb.DB) error {
var ikScratch []byte
return b.decodeRec(func(i int, kt kType, key, value []byte) error {
ikScratch := makeIkey(ikScratch, key, b.seq+uint64(i), kt)
return b.decodeRec(func(i int, kt keyType, key, value []byte) error {
ikScratch := makeInternalKey(ikScratch, key, b.seq+uint64(i), kt)
return to.Delete(ikScratch)
})
}

14
Godeps/_workspace/src/github.com/syndtr/goleveldb/leveldb/cache/cache.go generated vendored
View File

@ -47,17 +47,21 @@ type Cacher interface {
// so the the Release method will be called once object is released.
type Value interface{}
type CacheGetter struct {
// NamespaceGetter provides convenient wrapper for namespace.
type NamespaceGetter struct {
Cache *Cache
NS uint64
}
func (g *CacheGetter) Get(key uint64, setFunc func() (size int, value Value)) *Handle {
// Get simply calls Cache.Get() method.
func (g *NamespaceGetter) Get(key uint64, setFunc func() (size int, value Value)) *Handle {
return g.Cache.Get(g.NS, key, setFunc)
}
// The hash tables implementation is based on:
// "Dynamic-Sized Nonblocking Hash Tables", by Yujie Liu, Kunlong Zhang, and Michael Spear. ACM Symposium on Principles of Distributed Computing, Jul 2014.
// "Dynamic-Sized Nonblocking Hash Tables", by Yujie Liu,
// Kunlong Zhang, and Michael Spear.
// ACM Symposium on Principles of Distributed Computing, Jul 2014.
const (
mInitialSize = 1 << 4
@ -610,10 +614,12 @@ func (n *Node) unrefLocked() {
}
}
// Handle is a 'cache handle' of a 'cache node'.
type Handle struct {
n unsafe.Pointer // *Node
}
// Value returns the value of the 'cache node'.
func (h *Handle) Value() Value {
n := (*Node)(atomic.LoadPointer(&h.n))
if n != nil {
@ -622,6 +628,8 @@ func (h *Handle) Value() Value {
return nil
}
// Release releases this 'cache handle'.
// It is safe to call release multiple times.
func (h *Handle) Release() {
nPtr := atomic.LoadPointer(&h.n)
if nPtr != nil && atomic.CompareAndSwapPointer(&h.n, nPtr, nil) {

12
Godeps/_workspace/src/github.com/syndtr/goleveldb/leveldb/comparer.go generated vendored
View File

@ -33,9 +33,9 @@ func (icmp *iComparer) Name() string {
}
func (icmp *iComparer) Compare(a, b []byte) int {
x := icmp.ucmp.Compare(iKey(a).ukey(), iKey(b).ukey())
x := icmp.ucmp.Compare(internalKey(a).ukey(), internalKey(b).ukey())
if x == 0 {
if m, n := iKey(a).num(), iKey(b).num(); m > n {
if m, n := internalKey(a).num(), internalKey(b).num(); m > n {
x = -1
} else if m < n {
x = 1
@ -45,13 +45,13 @@ func (icmp *iComparer) Compare(a, b []byte) int {
}
func (icmp *iComparer) Separator(dst, a, b []byte) []byte {
ua, ub := iKey(a).ukey(), iKey(b).ukey()
ua, ub := internalKey(a).ukey(), internalKey(b).ukey()
dst = icmp.ucmp.Separator(dst, ua, ub)
if dst == nil {
return nil
}
if len(dst) < len(ua) && icmp.uCompare(ua, dst) < 0 {
dst = append(dst, kMaxNumBytes...)
dst = append(dst, keyMaxNumBytes...)
} else {
// Did not close possibilities that n maybe longer than len(ub).
dst = append(dst, a[len(a)-8:]...)
@ -60,13 +60,13 @@ func (icmp *iComparer) Separator(dst, a, b []byte) []byte {
}
func (icmp *iComparer) Successor(dst, b []byte) []byte {
ub := iKey(b).ukey()
ub := internalKey(b).ukey()
dst = icmp.ucmp.Successor(dst, ub)
if dst == nil {
return nil
}
if len(dst) < len(ub) && icmp.uCompare(ub, dst) < 0 {
dst = append(dst, kMaxNumBytes...)
dst = append(dst, keyMaxNumBytes...)
} else {
// Did not close possibilities that n maybe longer than len(ub).
dst = append(dst, b[len(b)-8:]...)

32
Godeps/_workspace/src/github.com/syndtr/goleveldb/leveldb/db.go generated vendored
View File

@ -315,7 +315,7 @@ func recoverTable(s *session, o *opt.Options) error {
tw := table.NewWriter(writer, o)
for iter.Next() {
key := iter.Key()
if validIkey(key) {
if validInternalKey(key) {
err = tw.Append(key, iter.Value())
if err != nil {
return
@ -380,7 +380,7 @@ func recoverTable(s *session, o *opt.Options) error {
// Scan the table.
for iter.Next() {
key := iter.Key()
_, seq, _, kerr := parseIkey(key)
_, seq, _, kerr := parseInternalKey(key)
if kerr != nil {
tcorruptedKey++
continue
@ -472,15 +472,15 @@ func recoverTable(s *session, o *opt.Options) error {
func (db *DB) recoverJournal() error {
// Get all journals and sort it by file number.
fds_, err := db.s.stor.List(storage.TypeJournal)
rawFds, err := db.s.stor.List(storage.TypeJournal)
if err != nil {
return err
}
sortFds(fds_)
sortFds(rawFds)
// Journals that will be recovered.
var fds []storage.FileDesc
for _, fd := range fds_ {
for _, fd := range rawFds {
if fd.Num >= db.s.stJournalNum || fd.Num == db.s.stPrevJournalNum {
fds = append(fds, fd)
}
@ -633,15 +633,15 @@ func (db *DB) recoverJournal() error {
func (db *DB) recoverJournalRO() error {
// Get all journals and sort it by file number.
fds_, err := db.s.stor.List(storage.TypeJournal)
rawFds, err := db.s.stor.List(storage.TypeJournal)
if err != nil {
return err
}
sortFds(fds_)
sortFds(rawFds)
// Journals that will be recovered.
var fds []storage.FileDesc
for _, fd := range fds_ {
for _, fd := range rawFds {
if fd.Num >= db.s.stJournalNum || fd.Num == db.s.stPrevJournalNum {
fds = append(fds, fd)
}
@ -728,16 +728,16 @@ func (db *DB) recoverJournalRO() error {
return nil
}
func memGet(mdb *memdb.DB, ikey iKey, icmp *iComparer) (ok bool, mv []byte, err error) {
func memGet(mdb *memdb.DB, ikey internalKey, icmp *iComparer) (ok bool, mv []byte, err error) {
mk, mv, err := mdb.Find(ikey)
if err == nil {
ukey, _, kt, kerr := parseIkey(mk)
ukey, _, kt, kerr := parseInternalKey(mk)
if kerr != nil {
// Shouldn't have had happen.
panic(kerr)
}
if icmp.uCompare(ukey, ikey.ukey()) == 0 {
if kt == ktDel {
if kt == keyTypeDel {
return true, nil, ErrNotFound
}
return true, mv, nil
@ -750,7 +750,7 @@ func memGet(mdb *memdb.DB, ikey iKey, icmp *iComparer) (ok bool, mv []byte, err
}
func (db *DB) get(auxm *memdb.DB, auxt tFiles, key []byte, seq uint64, ro *opt.ReadOptions) (value []byte, err error) {
ikey := makeIkey(nil, key, seq, ktSeek)
ikey := makeInternalKey(nil, key, seq, keyTypeSeek)
if auxm != nil {
if ok, mv, me := memGet(auxm, ikey, db.s.icmp); ok {
@ -788,7 +788,7 @@ func nilIfNotFound(err error) error {
}
func (db *DB) has(auxm *memdb.DB, auxt tFiles, key []byte, seq uint64, ro *opt.ReadOptions) (ret bool, err error) {
ikey := makeIkey(nil, key, seq, ktSeek)
ikey := makeInternalKey(nil, key, seq, keyTypeSeek)
if auxm != nil {
if ok, _, me := memGet(auxm, ikey, db.s.icmp); ok {
@ -997,8 +997,8 @@ func (db *DB) SizeOf(ranges []util.Range) (Sizes, error) {
sizes := make(Sizes, 0, len(ranges))
for _, r := range ranges {
imin := makeIkey(nil, r.Start, kMaxSeq, ktSeek)
imax := makeIkey(nil, r.Limit, kMaxSeq, ktSeek)
imin := makeInternalKey(nil, r.Start, keyMaxSeq, keyTypeSeek)
imax := makeInternalKey(nil, r.Limit, keyMaxSeq, keyTypeSeek)
start, err := v.offsetOf(imin)
if err != nil {
return nil, err
@ -1007,7 +1007,7 @@ func (db *DB) SizeOf(ranges []util.Range) (Sizes, error) {
if err != nil {
return nil, err
}
var size uint64
var size int64
if limit >= start {
size = limit - start
}

12
Godeps/_workspace/src/github.com/syndtr/goleveldb/leveldb/db_compaction.go generated vendored
View File

@ -452,7 +452,7 @@ func (b *tableCompactionBuilder) run(cnt *compactionTransactCounter) error {
}
ikey := iter.Key()
ukey, seq, kt, kerr := parseIkey(ikey)
ukey, seq, kt, kerr := parseInternalKey(ikey)
if kerr == nil {
shouldStop := !resumed && b.c.shouldStopBefore(ikey)
@ -478,14 +478,14 @@ func (b *tableCompactionBuilder) run(cnt *compactionTransactCounter) error {
hasLastUkey = true
lastUkey = append(lastUkey[:0], ukey...)
lastSeq = kMaxSeq
lastSeq = keyMaxSeq
}
switch {
case lastSeq <= b.minSeq:
// Dropped because newer entry for same user key exist
fallthrough // (A)
case kt == ktDel && seq <= b.minSeq && b.c.baseLevelForKey(lastUkey):
case kt == keyTypeDel && seq <= b.minSeq && b.c.baseLevelForKey(lastUkey):
// For this user key:
// (1) there is no data in higher levels
// (2) data in lower levels will have larger seq numbers
@ -507,7 +507,7 @@ func (b *tableCompactionBuilder) run(cnt *compactionTransactCounter) error {
// Don't drop corrupted keys.
hasLastUkey = false
lastUkey = lastUkey[:0]
lastSeq = kMaxSeq
lastSeq = keyMaxSeq
b.kerrCnt++
}
@ -548,9 +548,7 @@ func (db *DB) tableCompaction(c *compaction, noTrivial bool) {
db.logf("table@move L%d@%d -> L%d", c.sourceLevel, t.fd.Num, c.sourceLevel+1)
rec.delTable(c.sourceLevel, t.fd.Num)
rec.addTableFile(c.sourceLevel+1, t)
db.compactionTransactFunc("table@move", func(cnt *compactionTransactCounter) (err error) {
return db.s.commit(rec)
}, nil)
db.compactionCommit("table-move", rec)
return
}

20
Godeps/_workspace/src/github.com/syndtr/goleveldb/leveldb/db_iter.go generated vendored
View File

@ -19,7 +19,7 @@ import (
)
var (
errInvalidIkey = errors.New("leveldb: Iterator: invalid internal key")
errInvalidInternalKey = errors.New("leveldb: Iterator: invalid internal key")
)
type memdbReleaser struct {
@ -70,10 +70,10 @@ func (db *DB) newIterator(auxm *memDB, auxt tFiles, seq uint64, slice *util.Rang
if slice != nil {
islice = &util.Range{}
if slice.Start != nil {
islice.Start = makeIkey(nil, slice.Start, kMaxSeq, ktSeek)
islice.Start = makeInternalKey(nil, slice.Start, keyMaxSeq, keyTypeSeek)
}
if slice.Limit != nil {
islice.Limit = makeIkey(nil, slice.Limit, kMaxSeq, ktSeek)
islice.Limit = makeInternalKey(nil, slice.Limit, keyMaxSeq, keyTypeSeek)
}
}
rawIter := db.newRawIterator(auxm, auxt, islice, ro)
@ -187,7 +187,7 @@ func (i *dbIter) Seek(key []byte) bool {
return false
}
ikey := makeIkey(nil, key, i.seq, ktSeek)
ikey := makeInternalKey(nil, key, i.seq, keyTypeSeek)
if i.iter.Seek(ikey) {
i.dir = dirSOI
return i.next()
@ -199,15 +199,15 @@ func (i *dbIter) Seek(key []byte) bool {
func (i *dbIter) next() bool {
for {
if ukey, seq, kt, kerr := parseIkey(i.iter.Key()); kerr == nil {
if ukey, seq, kt, kerr := parseInternalKey(i.iter.Key()); kerr == nil {
i.sampleSeek()
if seq <= i.seq {
switch kt {
case ktDel:
case keyTypeDel:
// Skip deleted key.
i.key = append(i.key[:0], ukey...)
i.dir = dirForward
case ktVal:
case keyTypeVal:
if i.dir == dirSOI || i.icmp.uCompare(ukey, i.key) > 0 {
i.key = append(i.key[:0], ukey...)
i.value = append(i.value[:0], i.iter.Value()...)
@ -250,13 +250,13 @@ func (i *dbIter) prev() bool {
del := true
if i.iter.Valid() {
for {
if ukey, seq, kt, kerr := parseIkey(i.iter.Key()); kerr == nil {
if ukey, seq, kt, kerr := parseInternalKey(i.iter.Key()); kerr == nil {
i.sampleSeek()
if seq <= i.seq {
if !del && i.icmp.uCompare(ukey, i.key) < 0 {
return true
}
del = (kt == ktDel)
del = (kt == keyTypeDel)
if !del {
i.key = append(i.key[:0], ukey...)
i.value = append(i.value[:0], i.iter.Value()...)
@ -292,7 +292,7 @@ func (i *dbIter) Prev() bool {
return i.Last()
case dirForward:
for i.iter.Prev() {
if ukey, _, _, kerr := parseIkey(i.iter.Key()); kerr == nil {
if ukey, _, _, kerr := parseInternalKey(i.iter.Key()); kerr == nil {
i.sampleSeek()
if i.icmp.uCompare(ukey, i.key) < 0 {
goto cont

2
Godeps/_workspace/src/github.com/syndtr/goleveldb/leveldb/db_state.go generated vendored
View File

@ -57,7 +57,7 @@ func (db *DB) setSeq(seq uint64) {
atomic.StoreUint64(&db.seq, seq)
}
func (db *DB) sampleSeek(ikey iKey) {
func (db *DB) sampleSeek(ikey internalKey) {
v := db.s.version()
if v.sampleSeek(ikey) {
// Trigger table compaction.

10
Godeps/_workspace/src/github.com/syndtr/goleveldb/leveldb/db_transaction.go generated vendored
View File

@ -108,8 +108,8 @@ func (tr *Transaction) flush() error {
return nil
}
func (tr *Transaction) put(kt kType, key, value []byte) error {
tr.ikScratch = makeIkey(tr.ikScratch, key, tr.seq+1, kt)
func (tr *Transaction) put(kt keyType, key, value []byte) error {
tr.ikScratch = makeInternalKey(tr.ikScratch, key, tr.seq+1, kt)
if tr.mem.Free() < len(tr.ikScratch)+len(value) {
if err := tr.flush(); err != nil {
return err
@ -134,7 +134,7 @@ func (tr *Transaction) Put(key, value []byte, wo *opt.WriteOptions) error {
if tr.closed {
return errTransactionDone
}
return tr.put(ktVal, key, value)
return tr.put(keyTypeVal, key, value)
}
// Delete deletes the value for the given key.
@ -148,7 +148,7 @@ func (tr *Transaction) Delete(key []byte, wo *opt.WriteOptions) error {
if tr.closed {
return errTransactionDone
}
return tr.put(ktDel, key, nil)
return tr.put(keyTypeDel, key, nil)
}
// Write apply the given batch to the transaction. The batch will be applied
@ -167,7 +167,7 @@ func (tr *Transaction) Write(b *Batch, wo *opt.WriteOptions) error {
if tr.closed {
return errTransactionDone
}
return b.decodeRec(func(i int, kt kType, key, value []byte) error {
return b.decodeRec(func(i int, kt keyType, key, value []byte) error {
return tr.put(kt, key, value)
})
}

12
Godeps/_workspace/src/github.com/syndtr/goleveldb/leveldb/db_util.go generated vendored
View File

@ -21,14 +21,16 @@ type Reader interface {
NewIterator(slice *util.Range, ro *opt.ReadOptions) iterator.Iterator
}
type Sizes []uint64
// Sizes is list of size.
type Sizes []int64
// Sum returns sum of the sizes.
func (p Sizes) Sum() (n uint64) {
for _, s := range p {
n += s
func (sizes Sizes) Sum() int64 {
var sum int64
for _, size := range sizes {
sum += size
}
return n
return sum
}
// Logging.

4
Godeps/_workspace/src/github.com/syndtr/goleveldb/leveldb/db_write.go generated vendored
View File

@ -281,8 +281,8 @@ func (db *DB) Delete(key []byte, wo *opt.WriteOptions) error {
func isMemOverlaps(icmp *iComparer, mem *memdb.DB, min, max []byte) bool {
iter := mem.NewIterator(nil)
defer iter.Release()
return (max == nil || (iter.First() && icmp.uCompare(max, iKey(iter.Key()).ukey()) >= 0)) &&
(min == nil || (iter.Last() && icmp.uCompare(min, iKey(iter.Key()).ukey()) <= 0))
return (max == nil || (iter.First() && icmp.uCompare(max, internalKey(iter.Key()).ukey()) >= 0)) &&
(min == nil || (iter.Last() && icmp.uCompare(min, internalKey(iter.Key()).ukey()) <= 0))
}
// CompactRange compacts the underlying DB for the given key range.

4
Godeps/_workspace/src/github.com/syndtr/goleveldb/leveldb/filter.go generated vendored
View File

@ -15,7 +15,7 @@ type iFilter struct {
}
func (f iFilter) Contains(filter, key []byte) bool {
return f.Filter.Contains(filter, iKey(key).ukey())
return f.Filter.Contains(filter, internalKey(key).ukey())
}
func (f iFilter) NewGenerator() filter.FilterGenerator {
@ -27,5 +27,5 @@ type iFilterGenerator struct {
}
func (g iFilterGenerator) Add(key []byte) {
g.FilterGenerator.Add(iKey(key).ukey())
g.FilterGenerator.Add(internalKey(key).ukey())
}

84
Godeps/_workspace/src/github.com/syndtr/goleveldb/leveldb/key.go generated vendored
View File

@ -14,26 +14,27 @@ import (
"github.com/syndtr/goleveldb/leveldb/storage"
)
type ErrIkeyCorrupted struct {
// ErrInternalKeyCorrupted records internal key corruption.
type ErrInternalKeyCorrupted struct {
Ikey []byte
Reason string
}
func (e *ErrIkeyCorrupted) Error() string {
return fmt.Sprintf("leveldb: iKey %q corrupted: %s", e.Ikey, e.Reason)
func (e *ErrInternalKeyCorrupted) Error() string {
return fmt.Sprintf("leveldb: internal key %q corrupted: %s", e.Ikey, e.Reason)
}
func newErrIkeyCorrupted(ikey []byte, reason string) error {
return errors.NewErrCorrupted(storage.FileDesc{}, &ErrIkeyCorrupted{append([]byte{}, ikey...), reason})
func newErrInternalKeyCorrupted(ikey []byte, reason string) error {
return errors.NewErrCorrupted(storage.FileDesc{}, &ErrInternalKeyCorrupted{append([]byte{}, ikey...), reason})
}
type kType int
type keyType uint
func (kt kType) String() string {
func (kt keyType) String() string {
switch kt {
case ktDel:
case keyTypeDel:
return "d"
case ktVal:
case keyTypeVal:
return "v"
}
return "x"
@ -42,39 +43,39 @@ func (kt kType) String() string {
// Value types encoded as the last component of internal keys.
// Don't modify; this value are saved to disk.
const (
ktDel kType = iota
ktVal
keyTypeDel keyType = iota
keyTypeVal
)
// ktSeek defines the kType that should be passed when constructing an
// keyTypeSeek defines the keyType that should be passed when constructing an
// internal key for seeking to a particular sequence number (since we
// sort sequence numbers in decreasing order and the value type is
// embedded as the low 8 bits in the sequence number in internal keys,
// we need to use the highest-numbered ValueType, not the lowest).
const ktSeek = ktVal
const keyTypeSeek = keyTypeVal
const (
// Maximum value possible for sequence number; the 8-bits are
// used by value type, so its can packed together in single
// 64-bit integer.
kMaxSeq uint64 = (uint64(1) << 56) - 1
keyMaxSeq = (uint64(1) << 56) - 1
// Maximum value possible for packed sequence number and type.
kMaxNum uint64 = (kMaxSeq << 8) | uint64(ktSeek)
keyMaxNum = (keyMaxSeq << 8) | uint64(keyTypeSeek)
)
// Maximum number encoded in bytes.
var kMaxNumBytes = make([]byte, 8)
var keyMaxNumBytes = make([]byte, 8)
func init() {
binary.LittleEndian.PutUint64(kMaxNumBytes, kMaxNum)
binary.LittleEndian.PutUint64(keyMaxNumBytes, keyMaxNum)
}
type iKey []byte
type internalKey []byte
func makeIkey(dst, ukey []byte, seq uint64, kt kType) iKey {
if seq > kMaxSeq {
func makeInternalKey(dst, ukey []byte, seq uint64, kt keyType) internalKey {
if seq > keyMaxSeq {
panic("leveldb: invalid sequence number")
} else if kt > ktVal {
} else if kt > keyTypeVal {
panic("leveldb: invalid type")
}
@ -85,63 +86,62 @@ func makeIkey(dst, ukey []byte, seq uint64, kt kType) iKey {
}
copy(dst, ukey)
binary.LittleEndian.PutUint64(dst[len(ukey):], (seq<<8)|uint64(kt))
return iKey(dst)
return internalKey(dst)
}
func parseIkey(ik []byte) (ukey []byte, seq uint64, kt kType, err error) {
func parseInternalKey(ik []byte) (ukey []byte, seq uint64, kt keyType, err error) {
if len(ik) < 8 {
return nil, 0, 0, newErrIkeyCorrupted(ik, "invalid length")
return nil, 0, 0, newErrInternalKeyCorrupted(ik, "invalid length")
}
num := binary.LittleEndian.Uint64(ik[len(ik)-8:])
seq, kt = uint64(num>>8), kType(num&0xff)
if kt > ktVal {
return nil, 0, 0, newErrIkeyCorrupted(ik, "invalid type")
seq, kt = uint64(num>>8), keyType(num&0xff)
if kt > keyTypeVal {
return nil, 0, 0, newErrInternalKeyCorrupted(ik, "invalid type")
}
ukey = ik[:len(ik)-8]
return
}
func validIkey(ik []byte) bool {
_, _, _, err := parseIkey(ik)
func validInternalKey(ik []byte) bool {
_, _, _, err := parseInternalKey(ik)
return err == nil
}
func (ik iKey) assert() {
func (ik internalKey) assert() {
if ik == nil {
panic("leveldb: nil iKey")
panic("leveldb: nil internalKey")
}
if len(ik) < 8 {
panic(fmt.Sprintf("leveldb: iKey %q, len=%d: invalid length", []byte(ik), len(ik)))
panic(fmt.Sprintf("leveldb: internal key %q, len=%d: invalid length", []byte(ik), len(ik)))
}
}
func (ik iKey) ukey() []byte {
func (ik internalKey) ukey() []byte {
ik.assert()
return ik[:len(ik)-8]
}
func (ik iKey) num() uint64 {
func (ik internalKey) num() uint64 {
ik.assert()
return binary.LittleEndian.Uint64(ik[len(ik)-8:])
}
func (ik iKey) parseNum() (seq uint64, kt kType) {
func (ik internalKey) parseNum() (seq uint64, kt keyType) {
num := ik.num()
seq, kt = uint64(num>>8), kType(num&0xff)
if kt > ktVal {
panic(fmt.Sprintf("leveldb: iKey %q, len=%d: invalid type %#x", []byte(ik), len(ik), kt))
seq, kt = uint64(num>>8), keyType(num&0xff)
if kt > keyTypeVal {
panic(fmt.Sprintf("leveldb: internal key %q, len=%d: invalid type %#x", []byte(ik), len(ik), kt))
}
return
}
func (ik iKey) String() string {
func (ik internalKey) String() string {
if ik == nil {
return "<nil>"
}
if ukey, seq, kt, err := parseIkey(ik); err == nil {
if ukey, seq, kt, err := parseInternalKey(ik); err == nil {
return fmt.Sprintf("%s,%s%d", shorten(string(ukey)), kt, seq)
} else {
return "<invalid>"
}
return "<invalid>"
}

10
Godeps/_workspace/src/github.com/syndtr/goleveldb/leveldb/session.go generated vendored
View File

@ -18,6 +18,7 @@ import (
"github.com/syndtr/goleveldb/leveldb/storage"
)
// ErrManifestCorrupted records manifest corruption.
type ErrManifestCorrupted struct {
Field string
Reason string
@ -50,8 +51,8 @@ type session struct {
manifestWriter storage.Writer
manifestFd storage.FileDesc
stCompPtrs []iKey // compaction pointers; need external synchronization
stVersion *version // current version
stCompPtrs []internalKey // compaction pointers; need external synchronization
stVersion *version // current version
vmu sync.Mutex
}
@ -146,7 +147,7 @@ func (s *session) recover() (err error) {
if err == nil {
// save compact pointers
for _, r := range rec.compPtrs {
s.setCompPtr(r.level, iKey(r.ikey))
s.setCompPtr(r.level, internalKey(r.ikey))
}
// commit record to version staging
staging.commit(rec)
@ -154,9 +155,8 @@ func (s *session) recover() (err error) {
err = errors.SetFd(err, fd)
if strict || !errors.IsCorrupted(err) {
return
} else {
s.logf("manifest error: %v (skipped)", errors.SetFd(err, fd))
}
s.logf("manifest error: %v (skipped)", errors.SetFd(err, fd))
}
rec.resetCompPtrs()
rec.resetAddedTables()

4
Godeps/_workspace/src/github.com/syndtr/goleveldb/leveldb/session_compaction.go generated vendored
View File

@ -139,7 +139,7 @@ type compaction struct {
gpi int
seenKey bool
gpOverlappedBytes int64
imin, imax iKey
imin, imax internalKey
tPtrs []int
released bool
@ -242,7 +242,7 @@ func (c *compaction) baseLevelForKey(ukey []byte) bool {
return true
}
func (c *compaction) shouldStopBefore(ikey iKey) bool {
func (c *compaction) shouldStopBefore(ikey internalKey) bool {
for ; c.gpi < len(c.gp); c.gpi++ {
gp := c.gp[c.gpi]
if c.s.icmp.Compare(ikey, gp.imax) <= 0 {

12
Godeps/_workspace/src/github.com/syndtr/goleveldb/leveldb/session_record.go generated vendored
View File

@ -36,15 +36,15 @@ const (
type cpRecord struct {
level int
ikey iKey
ikey internalKey
}
type atRecord struct {
level int
num int64
size int64
imin iKey
imax iKey
imin internalKey
imax internalKey
}
type dtRecord struct {
@ -96,7 +96,7 @@ func (p *sessionRecord) setSeqNum(num uint64) {
p.seqNum = num
}
func (p *sessionRecord) addCompPtr(level int, ikey iKey) {
func (p *sessionRecord) addCompPtr(level int, ikey internalKey) {
p.hasRec |= 1 << recCompPtr
p.compPtrs = append(p.compPtrs, cpRecord{level, ikey})
}
@ -106,7 +106,7 @@ func (p *sessionRecord) resetCompPtrs() {
p.compPtrs = p.compPtrs[:0]
}
func (p *sessionRecord) addTable(level int, num, size int64, imin, imax iKey) {
func (p *sessionRecord) addTable(level int, num, size int64, imin, imax internalKey) {
p.hasRec |= 1 << recAddTable
p.addedTables = append(p.addedTables, atRecord{level, num, size, imin, imax})
}
@ -299,7 +299,7 @@ func (p *sessionRecord) decode(r io.Reader) error {
level := p.readLevel("comp-ptr.level", br)
ikey := p.readBytes("comp-ptr.ikey", br)
if p.err == nil {
p.addCompPtr(level, iKey(ikey))
p.addCompPtr(level, internalKey(ikey))
}
case recAddTable:
level := p.readLevel("add-table.level", br)

10
Godeps/_workspace/src/github.com/syndtr/goleveldb/leveldb/session_util.go generated vendored
View File

@ -106,17 +106,17 @@ func (s *session) reuseFileNum(num int64) {
}
// Set compaction ptr at given level; need external synchronization.
func (s *session) setCompPtr(level int, ik iKey) {
func (s *session) setCompPtr(level int, ik internalKey) {
if level >= len(s.stCompPtrs) {
newCompPtrs := make([]iKey, level+1)
newCompPtrs := make([]internalKey, level+1)
copy(newCompPtrs, s.stCompPtrs)
s.stCompPtrs = newCompPtrs
}
s.stCompPtrs[level] = append(iKey{}, ik...)
s.stCompPtrs[level] = append(internalKey{}, ik...)
}
// Get compaction ptr at given level; need external synchronization.
func (s *session) getCompPtr(level int) iKey {
func (s *session) getCompPtr(level int) internalKey {
if level >= len(s.stCompPtrs) {
return nil
}
@ -165,7 +165,7 @@ func (s *session) recordCommited(rec *sessionRecord) {
}
for _, r := range rec.compPtrs {
s.setCompPtr(r.level, iKey(r.ikey))
s.setCompPtr(r.level, internalKey(r.ikey))
}
}

29
Godeps/_workspace/src/github.com/syndtr/goleveldb/leveldb/table.go generated vendored
View File

@ -24,7 +24,7 @@ type tFile struct {
fd storage.FileDesc
seekLeft int32
size int64
imin, imax iKey
imin, imax internalKey
}
// Returns true if given key is after largest key of this table.
@ -48,7 +48,7 @@ func (t *tFile) consumeSeek() int32 {
}
// Creates new tFile.
func newTableFile(fd storage.FileDesc, size int64, imin, imax iKey) *tFile {
func newTableFile(fd storage.FileDesc, size int64, imin, imax internalKey) *tFile {
f := &tFile{
fd: fd,
size: size,
@ -136,7 +136,7 @@ func (tf tFiles) size() (sum int64) {
// Searches smallest index of tables whose its smallest
// key is after or equal with given key.
func (tf tFiles) searchMin(icmp *iComparer, ikey iKey) int {
func (tf tFiles) searchMin(icmp *iComparer, ikey internalKey) int {
return sort.Search(len(tf), func(i int) bool {
return icmp.Compare(tf[i].imin, ikey) >= 0
})
@ -144,7 +144,7 @@ func (tf tFiles) searchMin(icmp *iComparer, ikey iKey) int {
// Searches smallest index of tables whose its largest
// key is after or equal with given key.
func (tf tFiles) searchMax(icmp *iComparer, ikey iKey) int {
func (tf tFiles) searchMax(icmp *iComparer, ikey internalKey) int {
return sort.Search(len(tf), func(i int) bool {
return icmp.Compare(tf[i].imax, ikey) >= 0
})
@ -166,7 +166,7 @@ func (tf tFiles) overlaps(icmp *iComparer, umin, umax []byte, unsorted bool) boo
i := 0
if len(umin) > 0 {
// Find the earliest possible internal key for min.
i = tf.searchMax(icmp, makeIkey(nil, umin, kMaxSeq, ktSeek))
i = tf.searchMax(icmp, makeInternalKey(nil, umin, keyMaxSeq, keyTypeSeek))
}
if i >= len(tf) {
// Beginning of range is after all files, so no overlap.
@ -209,7 +209,7 @@ func (tf tFiles) getOverlaps(dst tFiles, icmp *iComparer, umin, umax []byte, ove
}
// Returns tables key range.
func (tf tFiles) getRange(icmp *iComparer) (imin, imax iKey) {
func (tf tFiles) getRange(icmp *iComparer) (imin, imax internalKey) {
for i, t := range tf {
if i == 0 {
imin, imax = t.imin, t.imax
@ -231,10 +231,10 @@ func (tf tFiles) newIndexIterator(tops *tOps, icmp *iComparer, slice *util.Range
if slice != nil {
var start, limit int
if slice.Start != nil {
start = tf.searchMax(icmp, iKey(slice.Start))
start = tf.searchMax(icmp, internalKey(slice.Start))
}
if slice.Limit != nil {
limit = tf.searchMin(icmp, iKey(slice.Limit))
limit = tf.searchMin(icmp, internalKey(slice.Limit))
} else {
limit = tf.Len()
}
@ -259,7 +259,7 @@ type tFilesArrayIndexer struct {
}
func (a *tFilesArrayIndexer) Search(key []byte) int {
return a.searchMax(a.icmp, iKey(key))
return a.searchMax(a.icmp, internalKey(key))
}
func (a *tFilesArrayIndexer) Get(i int) iterator.Iterator {
@ -351,9 +351,9 @@ func (t *tOps) open(f *tFile) (ch *cache.Handle, err error) {
return 0, nil
}
var bcache *cache.CacheGetter
var bcache *cache.NamespaceGetter
if t.bcache != nil {
bcache = &cache.CacheGetter{Cache: t.bcache, NS: uint64(f.fd.Num)}
bcache = &cache.NamespaceGetter{Cache: t.bcache, NS: uint64(f.fd.Num)}
}
var tr *table.Reader
@ -393,14 +393,13 @@ func (t *tOps) findKey(f *tFile, key []byte, ro *opt.ReadOptions) (rkey []byte,
}
// Returns approximate offset of the given key.
func (t *tOps) offsetOf(f *tFile, key []byte) (offset uint64, err error) {
func (t *tOps) offsetOf(f *tFile, key []byte) (offset int64, err error) {
ch, err := t.open(f)
if err != nil {
return
}
defer ch.Release()
offset_, err := ch.Value().(*table.Reader).OffsetOf(key)
return uint64(offset_), err
return ch.Value().(*table.Reader).OffsetOf(key)
}
// Creates an iterator from the given table.
@ -515,7 +514,7 @@ func (w *tWriter) finish() (f *tFile, err error) {
return
}
}
f = newTableFile(w.fd, int64(w.tw.BytesLen()), iKey(w.first), iKey(w.last))
f = newTableFile(w.fd, int64(w.tw.BytesLen()), internalKey(w.first), internalKey(w.last))
return
}

4
Godeps/_workspace/src/github.com/syndtr/goleveldb/leveldb/table/reader.go generated vendored
View File

@ -509,7 +509,7 @@ type Reader struct {
mu sync.RWMutex
fd storage.FileDesc
reader io.ReaderAt
cache *cache.CacheGetter
cache *cache.NamespaceGetter
err error
bpool *util.BufferPool
// Options
@ -988,7 +988,7 @@ func (r *Reader) Release() {
// The fi, cache and bpool is optional and can be nil.
//
// The returned table reader instance is goroutine-safe.
func NewReader(f io.ReaderAt, size int64, fd storage.FileDesc, cache *cache.CacheGetter, bpool *util.BufferPool, o *opt.Options) (*Reader, error) {
func NewReader(f io.ReaderAt, size int64, fd storage.FileDesc, cache *cache.NamespaceGetter, bpool *util.BufferPool, o *opt.Options) (*Reader, error) {
if f == nil {
return nil, errors.New("leveldb/table: nil file")
}

222
Godeps/_workspace/src/github.com/syndtr/goleveldb/leveldb/testutil/db.go generated vendored
View File

@ -1,222 +0,0 @@
// Copyright (c) 2014, Suryandaru Triandana <syndtr@gmail.com>
// All rights reserved.
//
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
package testutil
import (
"fmt"
"math/rand"
. "github.com/onsi/gomega"
"github.com/syndtr/goleveldb/leveldb/errors"
"github.com/syndtr/goleveldb/leveldb/iterator"
"github.com/syndtr/goleveldb/leveldb/util"
)
type DB interface{}
type Put interface {
TestPut(key []byte, value []byte) error
}
type Delete interface {
TestDelete(key []byte) error
}
type Find interface {
TestFind(key []byte) (rkey, rvalue []byte, err error)
}
type Get interface {
TestGet(key []byte) (value []byte, err error)
}
type Has interface {
TestHas(key []byte) (ret bool, err error)
}
type NewIterator interface {
TestNewIterator(slice *util.Range) iterator.Iterator
}
type DBAct int
func (a DBAct) String() string {
switch a {
case DBNone:
return "none"
case DBPut:
return "put"
case DBOverwrite:
return "overwrite"
case DBDelete:
return "delete"
case DBDeleteNA:
return "delete_na"
}
return "unknown"
}
const (
DBNone DBAct = iota
DBPut
DBOverwrite
DBDelete
DBDeleteNA
)
type DBTesting struct {
Rand *rand.Rand
DB interface {
Get
Put
Delete
}
PostFn func(t *DBTesting)
Deleted, Present KeyValue
Act, LastAct DBAct
ActKey, LastActKey []byte
}
func (t *DBTesting) post() {
if t.PostFn != nil {
t.PostFn(t)
}
}
func (t *DBTesting) setAct(act DBAct, key []byte) {
t.LastAct, t.Act = t.Act, act
t.LastActKey, t.ActKey = t.ActKey, key
}
func (t *DBTesting) text() string {
return fmt.Sprintf("last action was <%v> %q, <%v> %q", t.LastAct, t.LastActKey, t.Act, t.ActKey)
}
func (t *DBTesting) Text() string {
return "DBTesting " + t.text()
}
func (t *DBTesting) TestPresentKV(key, value []byte) {
rvalue, err := t.DB.TestGet(key)
Expect(err).ShouldNot(HaveOccurred(), "Get on key %q, %s", key, t.text())
Expect(rvalue).Should(Equal(value), "Value for key %q, %s", key, t.text())
}
func (t *DBTesting) TestAllPresent() {
t.Present.IterateShuffled(t.Rand, func(i int, key, value []byte) {
t.TestPresentKV(key, value)
})
}
func (t *DBTesting) TestDeletedKey(key []byte) {
_, err := t.DB.TestGet(key)
Expect(err).Should(Equal(errors.ErrNotFound), "Get on deleted key %q, %s", key, t.text())
}
func (t *DBTesting) TestAllDeleted() {
t.Deleted.IterateShuffled(t.Rand, func(i int, key, value []byte) {
t.TestDeletedKey(key)
})
}
func (t *DBTesting) TestAll() {
dn := t.Deleted.Len()
pn := t.Present.Len()
ShuffledIndex(t.Rand, dn+pn, 1, func(i int) {
if i >= dn {
key, value := t.Present.Index(i - dn)
t.TestPresentKV(key, value)
} else {
t.TestDeletedKey(t.Deleted.KeyAt(i))
}
})
}
func (t *DBTesting) Put(key, value []byte) {
if new := t.Present.PutU(key, value); new {
t.setAct(DBPut, key)
} else {
t.setAct(DBOverwrite, key)
}
t.Deleted.Delete(key)
err := t.DB.TestPut(key, value)
Expect(err).ShouldNot(HaveOccurred(), t.Text())
t.TestPresentKV(key, value)
t.post()
}
func (t *DBTesting) PutRandom() bool {
if t.Deleted.Len() > 0 {
i := t.Rand.Intn(t.Deleted.Len())
key, value := t.Deleted.Index(i)
t.Put(key, value)
return true
}
return false
}
func (t *DBTesting) Delete(key []byte) {
if exist, value := t.Present.Delete(key); exist {
t.setAct(DBDelete, key)
t.Deleted.PutU(key, value)
} else {
t.setAct(DBDeleteNA, key)
}
err := t.DB.TestDelete(key)
Expect(err).ShouldNot(HaveOccurred(), t.Text())
t.TestDeletedKey(key)
t.post()
}
func (t *DBTesting) DeleteRandom() bool {
if t.Present.Len() > 0 {
i := t.Rand.Intn(t.Present.Len())
t.Delete(t.Present.KeyAt(i))
return true
}
return false
}
func (t *DBTesting) RandomAct(round int) {
for i := 0; i < round; i++ {
if t.Rand.Int()%2 == 0 {
t.PutRandom()
} else {
t.DeleteRandom()
}
}
}
func DoDBTesting(t *DBTesting) {
if t.Rand == nil {
t.Rand = NewRand()
}
t.DeleteRandom()
t.PutRandom()
t.DeleteRandom()
t.DeleteRandom()
for i := t.Deleted.Len() / 2; i >= 0; i-- {
t.PutRandom()
}
t.RandomAct((t.Deleted.Len() + t.Present.Len()) * 10)
// Additional iterator testing
if db, ok := t.DB.(NewIterator); ok {
iter := db.TestNewIterator(nil)
Expect(iter.Error()).NotTo(HaveOccurred())
it := IteratorTesting{
KeyValue: t.Present,
Iter: iter,
}
DoIteratorTesting(&it)
iter.Release()
}
}

21
Godeps/_workspace/src/github.com/syndtr/goleveldb/leveldb/testutil/ginkgo.go generated vendored
View File

@ -1,21 +0,0 @@
package testutil
import (
. "github.com/onsi/ginkgo"
. "github.com/onsi/gomega"
)
func RunSuite(t GinkgoTestingT, name string) {
RunDefer()
SynchronizedBeforeSuite(func() []byte {
RunDefer("setup")
return nil
}, func(data []byte) {})
SynchronizedAfterSuite(func() {
RunDefer("teardown")
}, func() {})
RegisterFailHandler(Fail)
RunSpecs(t, name)
}

327
Godeps/_workspace/src/github.com/syndtr/goleveldb/leveldb/testutil/iter.go generated vendored
View File

@ -1,327 +0,0 @@
// Copyright (c) 2014, Suryandaru Triandana <syndtr@gmail.com>
// All rights reserved.
//
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
package testutil
import (
"fmt"
"math/rand"
. "github.com/onsi/gomega"
"github.com/syndtr/goleveldb/leveldb/iterator"
)
type IterAct int
func (a IterAct) String() string {
switch a {
case IterNone:
return "none"
case IterFirst:
return "first"
case IterLast:
return "last"
case IterPrev:
return "prev"
case IterNext:
return "next"
case IterSeek:
return "seek"
case IterSOI:
return "soi"
case IterEOI:
return "eoi"
}
return "unknown"
}
const (
IterNone IterAct = iota
IterFirst
IterLast
IterPrev
IterNext
IterSeek
IterSOI
IterEOI
)
type IteratorTesting struct {
KeyValue
Iter iterator.Iterator
Rand *rand.Rand
PostFn func(t *IteratorTesting)
Pos int
Act, LastAct IterAct
once bool
}
func (t *IteratorTesting) init() {
if !t.once {
t.Pos = -1
t.once = true
}
}
func (t *IteratorTesting) post() {
if t.PostFn != nil {
t.PostFn(t)
}
}
func (t *IteratorTesting) setAct(act IterAct) {
t.LastAct, t.Act = t.Act, act
}
func (t *IteratorTesting) text() string {
return fmt.Sprintf("at pos %d and last action was <%v> -> <%v>", t.Pos, t.LastAct, t.Act)
}
func (t *IteratorTesting) Text() string {
return "IteratorTesting is " + t.text()
}
func (t *IteratorTesting) IsFirst() bool {
t.init()
return t.Len() > 0 && t.Pos == 0
}
func (t *IteratorTesting) IsLast() bool {
t.init()
return t.Len() > 0 && t.Pos == t.Len()-1
}
func (t *IteratorTesting) TestKV() {
t.init()
key, value := t.Index(t.Pos)
Expect(t.Iter.Key()).NotTo(BeNil())
Expect(t.Iter.Key()).Should(Equal(key), "Key is invalid, %s", t.text())
Expect(t.Iter.Value()).Should(Equal(value), "Value for key %q, %s", key, t.text())
}
func (t *IteratorTesting) First() {
t.init()
t.setAct(IterFirst)
ok := t.Iter.First()
Expect(t.Iter.Error()).ShouldNot(HaveOccurred())
if t.Len() > 0 {
t.Pos = 0
Expect(ok).Should(BeTrue(), t.Text())
t.TestKV()
} else {
t.Pos = -1
Expect(ok).ShouldNot(BeTrue(), t.Text())
}
t.post()
}
func (t *IteratorTesting) Last() {
t.init()
t.setAct(IterLast)
ok := t.Iter.Last()
Expect(t.Iter.Error()).ShouldNot(HaveOccurred())
if t.Len() > 0 {
t.Pos = t.Len() - 1
Expect(ok).Should(BeTrue(), t.Text())
t.TestKV()
} else {
t.Pos = 0
Expect(ok).ShouldNot(BeTrue(), t.Text())
}
t.post()
}
func (t *IteratorTesting) Next() {
t.init()
t.setAct(IterNext)
ok := t.Iter.Next()
Expect(t.Iter.Error()).ShouldNot(HaveOccurred())
if t.Pos < t.Len()-1 {
t.Pos++
Expect(ok).Should(BeTrue(), t.Text())
t.TestKV()
} else {
t.Pos = t.Len()
Expect(ok).ShouldNot(BeTrue(), t.Text())
}
t.post()
}
func (t *IteratorTesting) Prev() {
t.init()
t.setAct(IterPrev)
ok := t.Iter.Prev()
Expect(t.Iter.Error()).ShouldNot(HaveOccurred())
if t.Pos > 0 {
t.Pos--
Expect(ok).Should(BeTrue(), t.Text())
t.TestKV()
} else {
t.Pos = -1
Expect(ok).ShouldNot(BeTrue(), t.Text())
}
t.post()
}
func (t *IteratorTesting) Seek(i int) {
t.init()
t.setAct(IterSeek)
key, _ := t.Index(i)
oldKey, _ := t.IndexOrNil(t.Pos)
ok := t.Iter.Seek(key)
Expect(t.Iter.Error()).ShouldNot(HaveOccurred())
Expect(ok).Should(BeTrue(), fmt.Sprintf("Seek from key %q to %q, to pos %d, %s", oldKey, key, i, t.text()))
t.Pos = i
t.TestKV()
t.post()
}
func (t *IteratorTesting) SeekInexact(i int) {
t.init()
t.setAct(IterSeek)
var key0 []byte
key1, _ := t.Index(i)
if i > 0 {
key0, _ = t.Index(i - 1)
}
key := BytesSeparator(key0, key1)
oldKey, _ := t.IndexOrNil(t.Pos)
ok := t.Iter.Seek(key)
Expect(t.Iter.Error()).ShouldNot(HaveOccurred())
Expect(ok).Should(BeTrue(), fmt.Sprintf("Seek from key %q to %q (%q), to pos %d, %s", oldKey, key, key1, i, t.text()))
t.Pos = i
t.TestKV()
t.post()
}
func (t *IteratorTesting) SeekKey(key []byte) {
t.init()
t.setAct(IterSeek)
oldKey, _ := t.IndexOrNil(t.Pos)
i := t.Search(key)
ok := t.Iter.Seek(key)
Expect(t.Iter.Error()).ShouldNot(HaveOccurred())
if i < t.Len() {
key_, _ := t.Index(i)
Expect(ok).Should(BeTrue(), fmt.Sprintf("Seek from key %q to %q (%q), to pos %d, %s", oldKey, key, key_, i, t.text()))
t.Pos = i
t.TestKV()
} else {
Expect(ok).ShouldNot(BeTrue(), fmt.Sprintf("Seek from key %q to %q, %s", oldKey, key, t.text()))
}
t.Pos = i
t.post()
}
func (t *IteratorTesting) SOI() {
t.init()
t.setAct(IterSOI)
Expect(t.Pos).Should(BeNumerically("<=", 0), t.Text())
for i := 0; i < 3; i++ {
t.Prev()
}
t.post()
}
func (t *IteratorTesting) EOI() {
t.init()
t.setAct(IterEOI)
Expect(t.Pos).Should(BeNumerically(">=", t.Len()-1), t.Text())
for i := 0; i < 3; i++ {
t.Next()
}
t.post()
}
func (t *IteratorTesting) WalkPrev(fn func(t *IteratorTesting)) {
t.init()
for old := t.Pos; t.Pos > 0; old = t.Pos {
fn(t)
Expect(t.Pos).Should(BeNumerically("<", old), t.Text())
}
}
func (t *IteratorTesting) WalkNext(fn func(t *IteratorTesting)) {
t.init()
for old := t.Pos; t.Pos < t.Len()-1; old = t.Pos {
fn(t)
Expect(t.Pos).Should(BeNumerically(">", old), t.Text())
}
}
func (t *IteratorTesting) PrevAll() {
t.WalkPrev(func(t *IteratorTesting) {
t.Prev()
})
}
func (t *IteratorTesting) NextAll() {
t.WalkNext(func(t *IteratorTesting) {
t.Next()
})
}
func DoIteratorTesting(t *IteratorTesting) {
if t.Rand == nil {
t.Rand = NewRand()
}
t.SOI()
t.NextAll()
t.First()
t.SOI()
t.NextAll()
t.EOI()
t.PrevAll()
t.Last()
t.EOI()
t.PrevAll()
t.SOI()
t.NextAll()
t.PrevAll()
t.NextAll()
t.Last()
t.PrevAll()
t.First()
t.NextAll()
t.EOI()
ShuffledIndex(t.Rand, t.Len(), 1, func(i int) {
t.Seek(i)
})
ShuffledIndex(t.Rand, t.Len(), 1, func(i int) {
t.SeekInexact(i)
})
ShuffledIndex(t.Rand, t.Len(), 1, func(i int) {
t.Seek(i)
if i%2 != 0 {
t.PrevAll()
t.SOI()
} else {
t.NextAll()
t.EOI()
}
})
for _, key := range []string{"", "foo", "bar", "\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff"} {
t.SeekKey([]byte(key))
}
}

352
Godeps/_workspace/src/github.com/syndtr/goleveldb/leveldb/testutil/kv.go generated vendored
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@ -1,352 +0,0 @@
// Copyright (c) 2014, Suryandaru Triandana <syndtr@gmail.com>
// All rights reserved.
//
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
package testutil
import (
"fmt"
"math/rand"
"sort"
"strings"
"github.com/syndtr/goleveldb/leveldb/util"
)
type KeyValueEntry struct {
key, value []byte
}
type KeyValue struct {
entries []KeyValueEntry
nbytes int
}
func (kv *KeyValue) Put(key, value []byte) {
if n := len(kv.entries); n > 0 && cmp.Compare(kv.entries[n-1].key, key) >= 0 {
panic(fmt.Sprintf("Put: keys are not in increasing order: %q, %q", kv.entries[n-1].key, key))
}
kv.entries = append(kv.entries, KeyValueEntry{key, value})
kv.nbytes += len(key) + len(value)
}
func (kv *KeyValue) PutString(key, value string) {
kv.Put([]byte(key), []byte(value))
}
func (kv *KeyValue) PutU(key, value []byte) bool {
if i, exist := kv.Get(key); !exist {
if i < kv.Len() {
kv.entries = append(kv.entries[:i+1], kv.entries[i:]...)
kv.entries[i] = KeyValueEntry{key, value}
} else {
kv.entries = append(kv.entries, KeyValueEntry{key, value})
}
kv.nbytes += len(key) + len(value)
return true
} else {
kv.nbytes += len(value) - len(kv.ValueAt(i))
kv.entries[i].value = value
}
return false
}
func (kv *KeyValue) PutUString(key, value string) bool {
return kv.PutU([]byte(key), []byte(value))
}
func (kv *KeyValue) Delete(key []byte) (exist bool, value []byte) {
i, exist := kv.Get(key)
if exist {
value = kv.entries[i].value
kv.DeleteIndex(i)
}
return
}
func (kv *KeyValue) DeleteIndex(i int) bool {
if i < kv.Len() {
kv.nbytes -= len(kv.KeyAt(i)) + len(kv.ValueAt(i))
kv.entries = append(kv.entries[:i], kv.entries[i+1:]...)
return true
}
return false
}
func (kv KeyValue) Len() int {
return len(kv.entries)
}
func (kv *KeyValue) Size() int {
return kv.nbytes
}
func (kv KeyValue) KeyAt(i int) []byte {
return kv.entries[i].key
}
func (kv KeyValue) ValueAt(i int) []byte {
return kv.entries[i].value
}
func (kv KeyValue) Index(i int) (key, value []byte) {
if i < 0 || i >= len(kv.entries) {
panic(fmt.Sprintf("Index #%d: out of range", i))
}
return kv.entries[i].key, kv.entries[i].value
}
func (kv KeyValue) IndexInexact(i int) (key_, key, value []byte) {
key, value = kv.Index(i)
var key0 []byte
var key1 = kv.KeyAt(i)
if i > 0 {
key0 = kv.KeyAt(i - 1)
}
key_ = BytesSeparator(key0, key1)
return
}
func (kv KeyValue) IndexOrNil(i int) (key, value []byte) {
if i >= 0 && i < len(kv.entries) {
return kv.entries[i].key, kv.entries[i].value
}
return nil, nil
}
func (kv KeyValue) IndexString(i int) (key, value string) {
key_, _value := kv.Index(i)
return string(key_), string(_value)
}
func (kv KeyValue) Search(key []byte) int {
return sort.Search(kv.Len(), func(i int) bool {
return cmp.Compare(kv.KeyAt(i), key) >= 0
})
}
func (kv KeyValue) SearchString(key string) int {
return kv.Search([]byte(key))
}
func (kv KeyValue) Get(key []byte) (i int, exist bool) {
i = kv.Search(key)
if i < kv.Len() && cmp.Compare(kv.KeyAt(i), key) == 0 {
exist = true
}
return
}
func (kv KeyValue) GetString(key string) (i int, exist bool) {
return kv.Get([]byte(key))
}
func (kv KeyValue) Iterate(fn func(i int, key, value []byte)) {
for i, x := range kv.entries {
fn(i, x.key, x.value)
}
}
func (kv KeyValue) IterateString(fn func(i int, key, value string)) {
kv.Iterate(func(i int, key, value []byte) {
fn(i, string(key), string(value))
})
}
func (kv KeyValue) IterateShuffled(rnd *rand.Rand, fn func(i int, key, value []byte)) {
ShuffledIndex(rnd, kv.Len(), 1, func(i int) {
fn(i, kv.entries[i].key, kv.entries[i].value)
})
}
func (kv KeyValue) IterateShuffledString(rnd *rand.Rand, fn func(i int, key, value string)) {
kv.IterateShuffled(rnd, func(i int, key, value []byte) {
fn(i, string(key), string(value))
})
}
func (kv KeyValue) IterateInexact(fn func(i int, key_, key, value []byte)) {
for i := range kv.entries {
key_, key, value := kv.IndexInexact(i)
fn(i, key_, key, value)
}
}
func (kv KeyValue) IterateInexactString(fn func(i int, key_, key, value string)) {
kv.IterateInexact(func(i int, key_, key, value []byte) {
fn(i, string(key_), string(key), string(value))
})
}
func (kv KeyValue) Clone() KeyValue {
return KeyValue{append([]KeyValueEntry{}, kv.entries...), kv.nbytes}
}
func (kv KeyValue) Slice(start, limit int) KeyValue {
if start < 0 || limit > kv.Len() {
panic(fmt.Sprintf("Slice %d .. %d: out of range", start, limit))
} else if limit < start {
panic(fmt.Sprintf("Slice %d .. %d: invalid range", start, limit))
}
return KeyValue{append([]KeyValueEntry{}, kv.entries[start:limit]...), kv.nbytes}
}
func (kv KeyValue) SliceKey(start, limit []byte) KeyValue {
start_ := 0
limit_ := kv.Len()
if start != nil {
start_ = kv.Search(start)
}
if limit != nil {
limit_ = kv.Search(limit)
}
return kv.Slice(start_, limit_)
}
func (kv KeyValue) SliceKeyString(start, limit string) KeyValue {
return kv.SliceKey([]byte(start), []byte(limit))
}
func (kv KeyValue) SliceRange(r *util.Range) KeyValue {
if r != nil {
return kv.SliceKey(r.Start, r.Limit)
}
return kv.Clone()
}
func (kv KeyValue) Range(start, limit int) (r util.Range) {
if kv.Len() > 0 {
if start == kv.Len() {
r.Start = BytesAfter(kv.KeyAt(start - 1))
} else {
r.Start = kv.KeyAt(start)
}
}
if limit < kv.Len() {
r.Limit = kv.KeyAt(limit)
}
return
}
func KeyValue_EmptyKey() *KeyValue {
kv := &KeyValue{}
kv.PutString("", "v")
return kv
}
func KeyValue_EmptyValue() *KeyValue {
kv := &KeyValue{}
kv.PutString("abc", "")
kv.PutString("abcd", "")
return kv
}
func KeyValue_OneKeyValue() *KeyValue {
kv := &KeyValue{}
kv.PutString("abc", "v")
return kv
}
func KeyValue_BigValue() *KeyValue {
kv := &KeyValue{}
kv.PutString("big1", strings.Repeat("1", 200000))
return kv
}
func KeyValue_SpecialKey() *KeyValue {
kv := &KeyValue{}
kv.PutString("\xff\xff", "v3")
return kv
}
func KeyValue_MultipleKeyValue() *KeyValue {
kv := &KeyValue{}
kv.PutString("a", "v")
kv.PutString("aa", "v1")
kv.PutString("aaa", "v2")
kv.PutString("aaacccccccccc", "v2")
kv.PutString("aaaccccccccccd", "v3")
kv.PutString("aaaccccccccccf", "v4")
kv.PutString("aaaccccccccccfg", "v5")
kv.PutString("ab", "v6")
kv.PutString("abc", "v7")
kv.PutString("abcd", "v8")
kv.PutString("accccccccccccccc", "v9")
kv.PutString("b", "v10")
kv.PutString("bb", "v11")
kv.PutString("bc", "v12")
kv.PutString("c", "v13")
kv.PutString("c1", "v13")
kv.PutString("czzzzzzzzzzzzzz", "v14")
kv.PutString("fffffffffffffff", "v15")
kv.PutString("g11", "v15")
kv.PutString("g111", "v15")
kv.PutString("g111\xff", "v15")
kv.PutString("zz", "v16")
kv.PutString("zzzzzzz", "v16")
kv.PutString("zzzzzzzzzzzzzzzz", "v16")
return kv
}
var keymap = []byte("012345678ABCDEFGHIJKLMNOPQRSTUVWXYabcdefghijklmnopqrstuvwxy")
func KeyValue_Generate(rnd *rand.Rand, n, minlen, maxlen, vminlen, vmaxlen int) *KeyValue {
if rnd == nil {
rnd = NewRand()
}
if maxlen < minlen {
panic("max len should >= min len")
}
rrand := func(min, max int) int {
if min == max {
return max
}
return rnd.Intn(max-min) + min
}
kv := &KeyValue{}
endC := byte(len(keymap) - 1)
gen := make([]byte, 0, maxlen)
for i := 0; i < n; i++ {
m := rrand(minlen, maxlen)
last := gen
retry:
gen = last[:m]
if k := len(last); m > k {
for j := k; j < m; j++ {
gen[j] = 0
}
} else {
for j := m - 1; j >= 0; j-- {
c := last[j]
if c == endC {
continue
}
gen[j] = c + 1
for j += 1; j < m; j++ {
gen[j] = 0
}
goto ok
}
if m < maxlen {
m++
goto retry
}
panic(fmt.Sprintf("only able to generate %d keys out of %d keys, try increasing max len", kv.Len(), n))
ok:
}
key := make([]byte, m)
for j := 0; j < m; j++ {
key[j] = keymap[gen[j]]
}
value := make([]byte, rrand(vminlen, vmaxlen))
for n := copy(value, []byte(fmt.Sprintf("v%d", i))); n < len(value); n++ {
value[n] = 'x'
}
kv.Put(key, value)
}
return kv
}

211
Godeps/_workspace/src/github.com/syndtr/goleveldb/leveldb/testutil/kvtest.go generated vendored
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@ -1,211 +0,0 @@
// Copyright (c) 2014, Suryandaru Triandana <syndtr@gmail.com>
// All rights reserved.
//
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
package testutil
import (
"fmt"
"math/rand"
. "github.com/onsi/ginkgo"
. "github.com/onsi/gomega"
"github.com/syndtr/goleveldb/leveldb/errors"
"github.com/syndtr/goleveldb/leveldb/util"
)
func TestFind(db Find, kv KeyValue) {
ShuffledIndex(nil, kv.Len(), 1, func(i int) {
key_, key, value := kv.IndexInexact(i)
// Using exact key.
rkey, rvalue, err := db.TestFind(key)
Expect(err).ShouldNot(HaveOccurred(), "Error for key %q", key)
Expect(rkey).Should(Equal(key), "Key")
Expect(rvalue).Should(Equal(value), "Value for key %q", key)
// Using inexact key.
rkey, rvalue, err = db.TestFind(key_)
Expect(err).ShouldNot(HaveOccurred(), "Error for key %q (%q)", key_, key)
Expect(rkey).Should(Equal(key))
Expect(rvalue).Should(Equal(value), "Value for key %q (%q)", key_, key)
})
}
func TestFindAfterLast(db Find, kv KeyValue) {
var key []byte
if kv.Len() > 0 {
key_, _ := kv.Index(kv.Len() - 1)
key = BytesAfter(key_)
}
rkey, _, err := db.TestFind(key)
Expect(err).Should(HaveOccurred(), "Find for key %q yield key %q", key, rkey)
Expect(err).Should(Equal(errors.ErrNotFound))
}
func TestGet(db Get, kv KeyValue) {
ShuffledIndex(nil, kv.Len(), 1, func(i int) {
key_, key, value := kv.IndexInexact(i)
// Using exact key.
rvalue, err := db.TestGet(key)
Expect(err).ShouldNot(HaveOccurred(), "Error for key %q", key)
Expect(rvalue).Should(Equal(value), "Value for key %q", key)
// Using inexact key.
if len(key_) > 0 {
_, err = db.TestGet(key_)
Expect(err).Should(HaveOccurred(), "Error for key %q", key_)
Expect(err).Should(Equal(errors.ErrNotFound))
}
})
}
func TestHas(db Has, kv KeyValue) {
ShuffledIndex(nil, kv.Len(), 1, func(i int) {
key_, key, _ := kv.IndexInexact(i)
// Using exact key.
ret, err := db.TestHas(key)
Expect(err).ShouldNot(HaveOccurred(), "Error for key %q", key)
Expect(ret).Should(BeTrue(), "False for key %q", key)
// Using inexact key.
if len(key_) > 0 {
ret, err = db.TestHas(key_)
Expect(err).ShouldNot(HaveOccurred(), "Error for key %q", key_)
Expect(ret).ShouldNot(BeTrue(), "True for key %q", key)
}
})
}
func TestIter(db NewIterator, r *util.Range, kv KeyValue) {
iter := db.TestNewIterator(r)
Expect(iter.Error()).ShouldNot(HaveOccurred())
t := IteratorTesting{
KeyValue: kv,
Iter: iter,
}
DoIteratorTesting(&t)
iter.Release()
}
func KeyValueTesting(rnd *rand.Rand, kv KeyValue, p DB, setup func(KeyValue) DB, teardown func(DB)) {
if rnd == nil {
rnd = NewRand()
}
if p == nil {
BeforeEach(func() {
p = setup(kv)
})
if teardown != nil {
AfterEach(func() {
teardown(p)
})
}
}
It("Should find all keys with Find", func() {
if db, ok := p.(Find); ok {
TestFind(db, kv)
}
})
It("Should return error if Find on key after the last", func() {
if db, ok := p.(Find); ok {
TestFindAfterLast(db, kv)
}
})
It("Should only find exact key with Get", func() {
if db, ok := p.(Get); ok {
TestGet(db, kv)
}
})
It("Should only find present key with Has", func() {
if db, ok := p.(Has); ok {
TestHas(db, kv)
}
})
It("Should iterates and seeks correctly", func(done Done) {
if db, ok := p.(NewIterator); ok {
TestIter(db, nil, kv.Clone())
}
done <- true
}, 3.0)
It("Should iterates and seeks slice correctly", func(done Done) {
if db, ok := p.(NewIterator); ok {
RandomIndex(rnd, kv.Len(), Min(kv.Len(), 50), func(i int) {
type slice struct {
r *util.Range
start, limit int
}
key_, _, _ := kv.IndexInexact(i)
for _, x := range []slice{
{&util.Range{Start: key_, Limit: nil}, i, kv.Len()},
{&util.Range{Start: nil, Limit: key_}, 0, i},
} {
By(fmt.Sprintf("Random index of %d .. %d", x.start, x.limit), func() {
TestIter(db, x.r, kv.Slice(x.start, x.limit))
})
}
})
}
done <- true
}, 50.0)
It("Should iterates and seeks slice correctly", func(done Done) {
if db, ok := p.(NewIterator); ok {
RandomRange(rnd, kv.Len(), Min(kv.Len(), 50), func(start, limit int) {
By(fmt.Sprintf("Random range of %d .. %d", start, limit), func() {
r := kv.Range(start, limit)
TestIter(db, &r, kv.Slice(start, limit))
})
})
}
done <- true
}, 50.0)
}
func AllKeyValueTesting(rnd *rand.Rand, body, setup func(KeyValue) DB, teardown func(DB)) {
Test := func(kv *KeyValue) func() {
return func() {
var p DB
if setup != nil {
Defer("setup", func() {
p = setup(*kv)
})
}
if teardown != nil {
Defer("teardown", func() {
teardown(p)
})
}
if body != nil {
p = body(*kv)
}
KeyValueTesting(rnd, *kv, p, func(KeyValue) DB {
return p
}, nil)
}
}
Describe("with no key/value (empty)", Test(&KeyValue{}))
Describe("with empty key", Test(KeyValue_EmptyKey()))
Describe("with empty value", Test(KeyValue_EmptyValue()))
Describe("with one key/value", Test(KeyValue_OneKeyValue()))
Describe("with big value", Test(KeyValue_BigValue()))
Describe("with special key", Test(KeyValue_SpecialKey()))
Describe("with multiple key/value", Test(KeyValue_MultipleKeyValue()))
Describe("with generated key/value", Test(KeyValue_Generate(nil, 120, 1, 50, 10, 120)))
}

694
Godeps/_workspace/src/github.com/syndtr/goleveldb/leveldb/testutil/storage.go generated vendored
View File

@ -1,694 +0,0 @@
// Copyright (c) 2014, Suryandaru Triandana <syndtr@gmail.com>
// All rights reserved.
//
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
package testutil
import (
"bytes"
"fmt"
"io"
"math/rand"
"os"
"path/filepath"
"runtime"
"strings"
"sync"
. "github.com/onsi/gomega"
"github.com/syndtr/goleveldb/leveldb/storage"
"github.com/syndtr/goleveldb/leveldb/util"
)
var (
storageMu sync.Mutex
storageUseFS = true
storageKeepFS = false
storageNum int
)
type StorageMode int
const (
ModeOpen StorageMode = 1 << iota
ModeCreate
ModeRemove
ModeRename
ModeRead
ModeWrite
ModeSync
ModeClose
)
const (
modeOpen = iota
modeCreate
modeRemove
modeRename
modeRead
modeWrite
modeSync
modeClose
modeCount
)
const (
typeManifest = iota
typeJournal
typeTable
typeTemp
typeCount
)
const flattenCount = modeCount * typeCount
func flattenType(m StorageMode, t storage.FileType) int {
var x int
switch m {
case ModeOpen:
x = modeOpen
case ModeCreate:
x = modeCreate
case ModeRemove:
x = modeRemove
case ModeRename:
x = modeRename
case ModeRead:
x = modeRead
case ModeWrite:
x = modeWrite
case ModeSync:
x = modeSync
case ModeClose:
x = modeClose
default:
panic("invalid storage mode")
}
x *= typeCount
switch t {
case storage.TypeManifest:
return x + typeManifest
case storage.TypeJournal:
return x + typeJournal
case storage.TypeTable:
return x + typeTable
case storage.TypeTemp:
return x + typeTemp
default:
panic("invalid file type")
}
}
func listFlattenType(m StorageMode, t storage.FileType) []int {
ret := make([]int, 0, flattenCount)
add := func(x int) {
x *= typeCount
switch {
case t&storage.TypeManifest != 0:
ret = append(ret, x+typeManifest)
case t&storage.TypeJournal != 0:
ret = append(ret, x+typeJournal)
case t&storage.TypeTable != 0:
ret = append(ret, x+typeTable)
case t&storage.TypeTemp != 0:
ret = append(ret, x+typeTemp)
}
}
switch {
case m&ModeOpen != 0:
add(modeOpen)
case m&ModeCreate != 0:
add(modeCreate)
case m&ModeRemove != 0:
add(modeRemove)
case m&ModeRename != 0:
add(modeRename)
case m&ModeRead != 0:
add(modeRead)
case m&ModeWrite != 0:
add(modeWrite)
case m&ModeSync != 0:
add(modeSync)
case m&ModeClose != 0:
add(modeClose)
}
return ret
}
func packFile(fd storage.FileDesc) uint64 {
if fd.Num>>(63-typeCount) != 0 {
panic("overflow")
}
return uint64(fd.Num<<typeCount) | uint64(fd.Type)
}
func unpackFile(x uint64) storage.FileDesc {
return storage.FileDesc{storage.FileType(x) & storage.TypeAll, int64(x >> typeCount)}
}
type emulatedError struct {
err error
}
func (err emulatedError) Error() string {
return fmt.Sprintf("emulated storage error: %v", err.err)
}
type storageLock struct {
s *Storage
r util.Releaser
}
func (l storageLock) Release() {
l.r.Release()
l.s.logI("storage lock released")
}
type reader struct {
s *Storage
fd storage.FileDesc
storage.Reader
}
func (r *reader) Read(p []byte) (n int, err error) {
err = r.s.emulateError(ModeRead, r.fd.Type)
if err == nil {
r.s.stall(ModeRead, r.fd.Type)
n, err = r.Reader.Read(p)
}
r.s.count(ModeRead, r.fd.Type, n)
if err != nil && err != io.EOF {
r.s.logI("read error, fd=%s n=%d err=%v", r.fd, n, err)
}
return
}
func (r *reader) ReadAt(p []byte, off int64) (n int, err error) {
err = r.s.emulateError(ModeRead, r.fd.Type)
if err == nil {
r.s.stall(ModeRead, r.fd.Type)
n, err = r.Reader.ReadAt(p, off)
}
r.s.count(ModeRead, r.fd.Type, n)
if err != nil && err != io.EOF {
r.s.logI("readAt error, fd=%s offset=%d n=%d err=%v", r.fd, off, n, err)
}
return
}
func (r *reader) Close() (err error) {
return r.s.fileClose(r.fd, r.Reader)
}
type writer struct {
s *Storage
fd storage.FileDesc
storage.Writer
}
func (w *writer) Write(p []byte) (n int, err error) {
err = w.s.emulateError(ModeWrite, w.fd.Type)
if err == nil {
w.s.stall(ModeWrite, w.fd.Type)
n, err = w.Writer.Write(p)
}
w.s.count(ModeWrite, w.fd.Type, n)
if err != nil && err != io.EOF {
w.s.logI("write error, fd=%s n=%d err=%v", w.fd, n, err)
}
return
}
func (w *writer) Sync() (err error) {
err = w.s.emulateError(ModeSync, w.fd.Type)
if err == nil {
w.s.stall(ModeSync, w.fd.Type)
err = w.Writer.Sync()
}
w.s.count(ModeSync, w.fd.Type, 0)
if err != nil {
w.s.logI("sync error, fd=%s err=%v", w.fd, err)
}
return
}
func (w *writer) Close() (err error) {
return w.s.fileClose(w.fd, w.Writer)
}
type Storage struct {
storage.Storage
path string
onClose func() (preserve bool, err error)
onLog func(str string)
lmu sync.Mutex
lb bytes.Buffer
mu sync.Mutex
rand *rand.Rand
// Open files, true=writer, false=reader
opens map[uint64]bool
counters [flattenCount]int
bytesCounter [flattenCount]int64
emulatedError [flattenCount]error
emulatedErrorOnce [flattenCount]bool
emulatedRandomError [flattenCount]error
emulatedRandomErrorProb [flattenCount]float64
stallCond sync.Cond
stalled [flattenCount]bool
}
func (s *Storage) log(skip int, str string) {
s.lmu.Lock()
defer s.lmu.Unlock()
_, file, line, ok := runtime.Caller(skip + 2)
if ok {
// Truncate file name at last file name separator.
if index := strings.LastIndex(file, "/"); index >= 0 {
file = file[index+1:]
} else if index = strings.LastIndex(file, "\\"); index >= 0 {
file = file[index+1:]
}
} else {
file = "???"
line = 1
}
fmt.Fprintf(&s.lb, "%s:%d: ", file, line)
lines := strings.Split(str, "\n")
if l := len(lines); l > 1 && lines[l-1] == "" {
lines = lines[:l-1]
}
for i, line := range lines {
if i > 0 {
s.lb.WriteString("\n\t")
}
s.lb.WriteString(line)
}
if s.onLog != nil {
s.onLog(s.lb.String())
s.lb.Reset()
} else {
s.lb.WriteByte('\n')
}
}
func (s *Storage) logISkip(skip int, format string, args ...interface{}) {
pc, _, _, ok := runtime.Caller(skip + 1)
if ok {
if f := runtime.FuncForPC(pc); f != nil {
fname := f.Name()
if index := strings.LastIndex(fname, "."); index >= 0 {
fname = fname[index+1:]
}
format = fname + ": " + format
}
}
s.log(skip+1, fmt.Sprintf(format, args...))
}
func (s *Storage) logI(format string, args ...interface{}) {
s.logISkip(1, format, args...)
}
func (s *Storage) OnLog(onLog func(log string)) {
s.lmu.Lock()
s.onLog = onLog
if s.lb.Len() != 0 {
log := s.lb.String()
s.onLog(log[:len(log)-1])
s.lb.Reset()
}
s.lmu.Unlock()
}
func (s *Storage) Log(str string) {
s.log(1, "Log: "+str)
s.Storage.Log(str)
}
func (s *Storage) Lock() (l storage.Lock, err error) {
l, err = s.Storage.Lock()
if err != nil {
s.logI("storage locking failed, err=%v", err)
} else {
s.logI("storage locked")
l = storageLock{s, l}
}
return
}
func (s *Storage) List(t storage.FileType) (fds []storage.FileDesc, err error) {
fds, err = s.Storage.List(t)
if err != nil {
s.logI("list failed, err=%v", err)
return
}
s.logI("list, type=0x%x count=%d", int(t), len(fds))
return
}
func (s *Storage) GetMeta() (fd storage.FileDesc, err error) {
fd, err = s.Storage.GetMeta()
if err != nil {
if !os.IsNotExist(err) {
s.logI("get meta failed, err=%v", err)
}
return
}
s.logI("get meta, fd=%s", fd)
return
}
func (s *Storage) SetMeta(fd storage.FileDesc) error {
ExpectWithOffset(1, fd.Type).To(Equal(storage.TypeManifest))
err := s.Storage.SetMeta(fd)
if err != nil {
s.logI("set meta failed, fd=%s err=%v", fd, err)
} else {
s.logI("set meta, fd=%s", fd)
}
return err
}
func (s *Storage) fileClose(fd storage.FileDesc, closer io.Closer) (err error) {
err = s.emulateError(ModeClose, fd.Type)
if err == nil {
s.stall(ModeClose, fd.Type)
}
x := packFile(fd)
s.mu.Lock()
defer s.mu.Unlock()
if err == nil {
ExpectWithOffset(2, s.opens).To(HaveKey(x), "File closed, fd=%s", fd)
err = closer.Close()
}
s.countNB(ModeClose, fd.Type, 0)
writer := s.opens[x]
if err != nil {
s.logISkip(1, "file close failed, fd=%s writer=%v err=%v", fd, writer, err)
} else {
s.logISkip(1, "file closed, fd=%s writer=%v", fd, writer)
delete(s.opens, x)
}
return
}
func (s *Storage) assertOpen(fd storage.FileDesc) {
x := packFile(fd)
ExpectWithOffset(2, s.opens).NotTo(HaveKey(x), "File open, fd=%s writer=%v", fd, s.opens[x])
}
func (s *Storage) Open(fd storage.FileDesc) (r storage.Reader, err error) {
err = s.emulateError(ModeOpen, fd.Type)
if err == nil {
s.stall(ModeOpen, fd.Type)
}
s.mu.Lock()
defer s.mu.Unlock()
if err == nil {
s.assertOpen(fd)
s.countNB(ModeOpen, fd.Type, 0)
r, err = s.Storage.Open(fd)
}
if err != nil {
s.logI("file open failed, fd=%s err=%v", fd, err)
} else {
s.logI("file opened, fd=%s", fd)
s.opens[packFile(fd)] = false
r = &reader{s, fd, r}
}
return
}
func (s *Storage) Create(fd storage.FileDesc) (w storage.Writer, err error) {
err = s.emulateError(ModeCreate, fd.Type)
if err == nil {
s.stall(ModeCreate, fd.Type)
}
s.mu.Lock()
defer s.mu.Unlock()
if err == nil {
s.assertOpen(fd)
s.countNB(ModeCreate, fd.Type, 0)
w, err = s.Storage.Create(fd)
}
if err != nil {
s.logI("file create failed, fd=%s err=%v", fd, err)
} else {
s.logI("file created, fd=%s", fd)
s.opens[packFile(fd)] = true
w = &writer{s, fd, w}
}
return
}
func (s *Storage) Remove(fd storage.FileDesc) (err error) {
err = s.emulateError(ModeRemove, fd.Type)
if err == nil {
s.stall(ModeRemove, fd.Type)
}
s.mu.Lock()
defer s.mu.Unlock()
if err == nil {
s.assertOpen(fd)
s.countNB(ModeRemove, fd.Type, 0)
err = s.Storage.Remove(fd)
}
if err != nil {
s.logI("file remove failed, fd=%s err=%v", fd, err)
} else {
s.logI("file removed, fd=%s", fd)
}
return
}
func (s *Storage) ForceRemove(fd storage.FileDesc) (err error) {
s.countNB(ModeRemove, fd.Type, 0)
if err = s.Storage.Remove(fd); err != nil {
s.logI("file remove failed (forced), fd=%s err=%v", fd, err)
} else {
s.logI("file removed (forced), fd=%s", fd)
}
return
}
func (s *Storage) Rename(oldfd, newfd storage.FileDesc) (err error) {
err = s.emulateError(ModeRename, oldfd.Type)
if err == nil {
s.stall(ModeRename, oldfd.Type)
}
s.mu.Lock()
defer s.mu.Unlock()
if err == nil {
s.assertOpen(oldfd)
s.assertOpen(newfd)
s.countNB(ModeRename, oldfd.Type, 0)
err = s.Storage.Rename(oldfd, newfd)
}
if err != nil {
s.logI("file rename failed, oldfd=%s newfd=%s err=%v", oldfd, newfd, err)
} else {
s.logI("file renamed, oldfd=%s newfd=%s", oldfd, newfd)
}
return
}
func (s *Storage) ForceRename(oldfd, newfd storage.FileDesc) (err error) {
s.countNB(ModeRename, oldfd.Type, 0)
if err = s.Storage.Rename(oldfd, newfd); err != nil {
s.logI("file rename failed (forced), oldfd=%s newfd=%s err=%v", oldfd, newfd, err)
} else {
s.logI("file renamed (forced), oldfd=%s newfd=%s", oldfd, newfd)
}
return
}
func (s *Storage) openFiles() string {
out := "Open files:"
for x, writer := range s.opens {
fd := unpackFile(x)
out += fmt.Sprintf("\n · fd=%s writer=%v", fd, writer)
}
return out
}
func (s *Storage) CloseCheck() {
s.mu.Lock()
defer s.mu.Unlock()
ExpectWithOffset(1, s.opens).To(BeEmpty(), s.openFiles())
}
func (s *Storage) OnClose(onClose func() (preserve bool, err error)) {
s.mu.Lock()
s.onClose = onClose
s.mu.Unlock()
}
func (s *Storage) Close() error {
s.mu.Lock()
defer s.mu.Unlock()
ExpectWithOffset(1, s.opens).To(BeEmpty(), s.openFiles())
err := s.Storage.Close()
if err != nil {
s.logI("storage closing failed, err=%v", err)
} else {
s.logI("storage closed")
}
var preserve bool
if s.onClose != nil {
var err0 error
if preserve, err0 = s.onClose(); err0 != nil {
s.logI("onClose error, err=%v", err0)
}
}
if s.path != "" {
if storageKeepFS || preserve {
s.logI("storage is preserved, path=%v", s.path)
} else {
if err1 := os.RemoveAll(s.path); err1 != nil {
s.logI("cannot remove storage, err=%v", err1)
} else {
s.logI("storage has been removed")
}
}
}
return err
}
func (s *Storage) countNB(m StorageMode, t storage.FileType, n int) {
s.counters[flattenType(m, t)]++
s.bytesCounter[flattenType(m, t)] += int64(n)
}
func (s *Storage) count(m StorageMode, t storage.FileType, n int) {
s.mu.Lock()
defer s.mu.Unlock()
s.countNB(m, t, n)
}
func (s *Storage) ResetCounter(m StorageMode, t storage.FileType) {
for _, x := range listFlattenType(m, t) {
s.counters[x] = 0
s.bytesCounter[x] = 0
}
}
func (s *Storage) Counter(m StorageMode, t storage.FileType) (count int, bytes int64) {
for _, x := range listFlattenType(m, t) {
count += s.counters[x]
bytes += s.bytesCounter[x]
}
return
}
func (s *Storage) emulateError(m StorageMode, t storage.FileType) error {
s.mu.Lock()
defer s.mu.Unlock()
x := flattenType(m, t)
if err := s.emulatedError[x]; err != nil {
if s.emulatedErrorOnce[x] {
s.emulatedError[x] = nil
}
return emulatedError{err}
}
if err := s.emulatedRandomError[x]; err != nil && s.rand.Float64() < s.emulatedRandomErrorProb[x] {
return emulatedError{err}
}
return nil
}
func (s *Storage) EmulateError(m StorageMode, t storage.FileType, err error) {
s.mu.Lock()
defer s.mu.Unlock()
for _, x := range listFlattenType(m, t) {
s.emulatedError[x] = err
s.emulatedErrorOnce[x] = false
}
}
func (s *Storage) EmulateErrorOnce(m StorageMode, t storage.FileType, err error) {
s.mu.Lock()
defer s.mu.Unlock()
for _, x := range listFlattenType(m, t) {
s.emulatedError[x] = err
s.emulatedErrorOnce[x] = true
}
}
func (s *Storage) EmulateRandomError(m StorageMode, t storage.FileType, prob float64, err error) {
s.mu.Lock()
defer s.mu.Unlock()
for _, x := range listFlattenType(m, t) {
s.emulatedRandomError[x] = err
s.emulatedRandomErrorProb[x] = prob
}
}
func (s *Storage) stall(m StorageMode, t storage.FileType) {
x := flattenType(m, t)
s.mu.Lock()
defer s.mu.Unlock()
for s.stalled[x] {
s.stallCond.Wait()
}
}
func (s *Storage) Stall(m StorageMode, t storage.FileType) {
s.mu.Lock()
defer s.mu.Unlock()
for _, x := range listFlattenType(m, t) {
s.stalled[x] = true
}
}
func (s *Storage) Release(m StorageMode, t storage.FileType) {
s.mu.Lock()
defer s.mu.Unlock()
for _, x := range listFlattenType(m, t) {
s.stalled[x] = false
}
s.stallCond.Broadcast()
}
func NewStorage() *Storage {
var (
stor storage.Storage
path string
)
if storageUseFS {
for {
storageMu.Lock()
num := storageNum
storageNum++
storageMu.Unlock()
path = filepath.Join(os.TempDir(), fmt.Sprintf("goleveldb-test%d0%d0%d", os.Getuid(), os.Getpid(), num))
if _, err := os.Stat(path); os.IsNotExist(err) {
stor, err = storage.OpenFile(path, false)
ExpectWithOffset(1, err).NotTo(HaveOccurred(), "creating storage at %s", path)
break
}
}
} else {
stor = storage.NewMemStorage()
}
s := &Storage{
Storage: stor,
path: path,
rand: NewRand(),
opens: make(map[uint64]bool),
}
s.stallCond.L = &s.mu
if s.path != "" {
s.logI("using FS storage")
s.logI("storage path: %s", s.path)
} else {
s.logI("using MEM storage")
}
return s
}

171
Godeps/_workspace/src/github.com/syndtr/goleveldb/leveldb/testutil/util.go generated vendored
View File

@ -1,171 +0,0 @@
// Copyright (c) 2014, Suryandaru Triandana <syndtr@gmail.com>
// All rights reserved.
//
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
package testutil
import (
"bytes"
"flag"
"math/rand"
"reflect"
"sync"
"github.com/onsi/ginkgo/config"
"github.com/syndtr/goleveldb/leveldb/comparer"
)
var (
runfn = make(map[string][]func())
runmu sync.Mutex
)
func Defer(args ...interface{}) bool {
var (
group string
fn func()
)
for _, arg := range args {
v := reflect.ValueOf(arg)
switch v.Kind() {
case reflect.String:
group = v.String()
case reflect.Func:
r := reflect.ValueOf(&fn).Elem()
r.Set(v)
}
}
if fn != nil {
runmu.Lock()
runfn[group] = append(runfn[group], fn)
runmu.Unlock()
}
return true
}
func RunDefer(groups ...string) bool {
if len(groups) == 0 {
groups = append(groups, "")
}
runmu.Lock()
var runfn_ []func()
for _, group := range groups {
runfn_ = append(runfn_, runfn[group]...)
delete(runfn, group)
}
runmu.Unlock()
for _, fn := range runfn_ {
fn()
}
return runfn_ != nil
}
func RandomSeed() int64 {
if !flag.Parsed() {
panic("random seed not initialized")
}
return config.GinkgoConfig.RandomSeed
}
func NewRand() *rand.Rand {
return rand.New(rand.NewSource(RandomSeed()))
}
var cmp = comparer.DefaultComparer
func BytesSeparator(a, b []byte) []byte {
if bytes.Equal(a, b) {
return b
}
i, n := 0, len(a)
if n > len(b) {
n = len(b)
}
for ; i < n && (a[i] == b[i]); i++ {
}
x := append([]byte{}, a[:i]...)
if i < n {
if c := a[i] + 1; c < b[i] {
return append(x, c)
}
x = append(x, a[i])
i++
}
for ; i < len(a); i++ {
if c := a[i]; c < 0xff {
return append(x, c+1)
} else {
x = append(x, c)
}
}
if len(b) > i && b[i] > 0 {
return append(x, b[i]-1)
}
return append(x, 'x')
}
func BytesAfter(b []byte) []byte {
var x []byte
for _, c := range b {
if c < 0xff {
return append(x, c+1)
} else {
x = append(x, c)
}
}
return append(x, 'x')
}
func RandomIndex(rnd *rand.Rand, n, round int, fn func(i int)) {
if rnd == nil {
rnd = NewRand()
}
for x := 0; x < round; x++ {
fn(rnd.Intn(n))
}
return
}
func ShuffledIndex(rnd *rand.Rand, n, round int, fn func(i int)) {
if rnd == nil {
rnd = NewRand()
}
for x := 0; x < round; x++ {
for _, i := range rnd.Perm(n) {
fn(i)
}
}
return
}
func RandomRange(rnd *rand.Rand, n, round int, fn func(start, limit int)) {
if rnd == nil {
rnd = NewRand()
}
for x := 0; x < round; x++ {
start := rnd.Intn(n)
length := 0
if j := n - start; j > 0 {
length = rnd.Intn(j)
}
fn(start, start+length)
}
return
}
func Max(x, y int) int {
if x > y {
return x
}
return y
}
func Min(x, y int) int {
if x < y {
return x
}
return y
}

42
Godeps/_workspace/src/github.com/syndtr/goleveldb/leveldb/version.go generated vendored
View File

@ -79,7 +79,7 @@ func (v *version) release() {
v.s.vmu.Unlock()
}
func (v *version) walkOverlapping(aux tFiles, ikey iKey, f func(level int, t *tFile) bool, lf func(level int) bool) {
func (v *version) walkOverlapping(aux tFiles, ikey internalKey, f func(level int, t *tFile) bool, lf func(level int) bool) {
ukey := ikey.ukey()
// Aux level.
@ -130,7 +130,7 @@ func (v *version) walkOverlapping(aux tFiles, ikey iKey, f func(level int, t *tF
}
}
func (v *version) get(aux tFiles, ikey iKey, ro *opt.ReadOptions, noValue bool) (value []byte, tcomp bool, err error) {
func (v *version) get(aux tFiles, ikey internalKey, ro *opt.ReadOptions, noValue bool) (value []byte, tcomp bool, err error) {
ukey := ikey.ukey()
var (
@ -140,7 +140,7 @@ func (v *version) get(aux tFiles, ikey iKey, ro *opt.ReadOptions, noValue bool)
// Level-0.
zfound bool
zseq uint64
zkt kType
zkt keyType
zval []byte
)
@ -176,7 +176,7 @@ func (v *version) get(aux tFiles, ikey iKey, ro *opt.ReadOptions, noValue bool)
return false
}
if fukey, fseq, fkt, fkerr := parseIkey(fikey); fkerr == nil {
if fukey, fseq, fkt, fkerr := parseInternalKey(fikey); fkerr == nil {
if v.s.icmp.uCompare(ukey, fukey) == 0 {
// Level <= 0 may overlaps each-other.
if level <= 0 {
@ -188,12 +188,12 @@ func (v *version) get(aux tFiles, ikey iKey, ro *opt.ReadOptions, noValue bool)
}
} else {
switch fkt {
case ktVal:
case keyTypeVal:
value = fval
err = nil
case ktDel:
case keyTypeDel:
default:
panic("leveldb: invalid iKey type")
panic("leveldb: invalid internalKey type")
}
return false
}
@ -207,12 +207,12 @@ func (v *version) get(aux tFiles, ikey iKey, ro *opt.ReadOptions, noValue bool)
}, func(level int) bool {
if zfound {
switch zkt {
case ktVal:
case keyTypeVal:
value = zval
err = nil
case ktDel:
case keyTypeDel:
default:
panic("leveldb: invalid iKey type")
panic("leveldb: invalid internalKey type")
}
return false
}
@ -227,19 +227,18 @@ func (v *version) get(aux tFiles, ikey iKey, ro *opt.ReadOptions, noValue bool)
return
}
func (v *version) sampleSeek(ikey iKey) (tcomp bool) {
func (v *version) sampleSeek(ikey internalKey) (tcomp bool) {
var tset *tSet
v.walkOverlapping(nil, ikey, func(level int, t *tFile) bool {
if tset == nil {
tset = &tSet{level, t}
return true
} else {
if tset.table.consumeSeek() <= 0 {
tcomp = atomic.CompareAndSwapPointer(&v.cSeek, nil, unsafe.Pointer(tset))
}
return false
}
if tset.table.consumeSeek() <= 0 {
tcomp = atomic.CompareAndSwapPointer(&v.cSeek, nil, unsafe.Pointer(tset))
}
return false
}, nil)
return
@ -286,12 +285,12 @@ func (v *version) tLen(level int) int {
return 0
}
func (v *version) offsetOf(ikey iKey) (n uint64, err error) {
func (v *version) offsetOf(ikey internalKey) (n int64, err error) {
for level, tables := range v.levels {
for _, t := range tables {
if v.s.icmp.Compare(t.imax, ikey) <= 0 {
// Entire file is before "ikey", so just add the file size
n += uint64(t.size)
n += t.size
} else if v.s.icmp.Compare(t.imin, ikey) > 0 {
// Entire file is after "ikey", so ignore
if level > 0 {
@ -303,12 +302,11 @@ func (v *version) offsetOf(ikey iKey) (n uint64, err error) {
} else {
// "ikey" falls in the range for this table. Add the
// approximate offset of "ikey" within the table.
var nn uint64
nn, err = v.s.tops.offsetOf(t, ikey)
if err != nil {
if m, err := v.s.tops.offsetOf(t, ikey); err == nil {
n += m
} else {
return 0, err
}
n += nn
}
}
}