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张蕾
Geth-Modification
Commits
def1b0d7
Commit
def1b0d7
authored
Mar 18, 2019
by
gary rong
Committed by
Péter Szilágyi
Mar 18, 2019
Browse files
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Browse Files
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Plain Diff
vendor: udpate leveldb upstream (#19284)
parent
acebccc3
Changes
6
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Inline
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Showing
6 changed files
with
362 additions
and
55 deletions
+362
-55
session.go
vendor/github.com/syndtr/goleveldb/leveldb/session.go
+40
-11
session_compaction.go
...github.com/syndtr/goleveldb/leveldb/session_compaction.go
+8
-4
session_util.go
vendor/github.com/syndtr/goleveldb/leveldb/session_util.go
+224
-12
table.go
vendor/github.com/syndtr/goleveldb/leveldb/table.go
+70
-11
version.go
vendor/github.com/syndtr/goleveldb/leveldb/version.go
+17
-14
vendor.json
vendor/vendor.json
+3
-3
No files found.
vendor/github.com/syndtr/goleveldb/leveldb/session.go
View file @
def1b0d7
...
...
@@ -47,15 +47,24 @@ type session struct {
o
*
cachedOptions
icmp
*
iComparer
tops
*
tOps
fileRef
map
[
int64
]
int
manifest
*
journal
.
Writer
manifestWriter
storage
.
Writer
manifestFd
storage
.
FileDesc
stCompPtrs
[]
internalKey
// compaction pointers; need external synchronization
stVersion
*
version
// current version
vmu
sync
.
Mutex
stCompPtrs
[]
internalKey
// compaction pointers; need external synchronization
stVersion
*
version
// current version
ntVersionId
int64
// next version id to assign
refCh
chan
*
vTask
relCh
chan
*
vTask
deltaCh
chan
*
vDelta
abandon
chan
int64
closeC
chan
struct
{}
closeW
sync
.
WaitGroup
vmu
sync
.
Mutex
// Testing fields
fileRefCh
chan
chan
map
[
int64
]
int
// channel used to pass current reference stat
}
// Creates new initialized session instance.
...
...
@@ -68,13 +77,21 @@ func newSession(stor storage.Storage, o *opt.Options) (s *session, err error) {
return
}
s
=
&
session
{
stor
:
newIStorage
(
stor
),
storLock
:
storLock
,
fileRef
:
make
(
map
[
int64
]
int
),
stor
:
newIStorage
(
stor
),
storLock
:
storLock
,
refCh
:
make
(
chan
*
vTask
),
relCh
:
make
(
chan
*
vTask
),
deltaCh
:
make
(
chan
*
vDelta
),
abandon
:
make
(
chan
int64
),
fileRefCh
:
make
(
chan
chan
map
[
int64
]
int
),
closeC
:
make
(
chan
struct
{}),
}
s
.
setOptions
(
o
)
s
.
tops
=
newTableOps
(
s
)
s
.
setVersion
(
newVersion
(
s
))
s
.
closeW
.
Add
(
1
)
go
s
.
refLoop
()
s
.
setVersion
(
nil
,
newVersion
(
s
))
s
.
log
(
"log@legend F·NumFile S·FileSize N·Entry C·BadEntry B·BadBlock Ke·KeyError D·DroppedEntry L·Level Q·SeqNum T·TimeElapsed"
)
return
}
...
...
@@ -90,7 +107,11 @@ func (s *session) close() {
}
s
.
manifest
=
nil
s
.
manifestWriter
=
nil
s
.
setVersion
(
&
version
{
s
:
s
,
closing
:
true
})
s
.
setVersion
(
nil
,
&
version
{
s
:
s
,
closing
:
true
,
id
:
s
.
ntVersionId
})
// Close all background goroutines
close
(
s
.
closeC
)
s
.
closeW
.
Wait
()
}
// Release session lock.
...
...
@@ -180,7 +201,7 @@ func (s *session) recover() (err error) {
}
s
.
manifestFd
=
fd
s
.
setVersion
(
staging
.
finish
(
false
))
s
.
setVersion
(
rec
,
staging
.
finish
(
false
))
s
.
setNextFileNum
(
rec
.
nextFileNum
)
s
.
recordCommited
(
rec
)
return
nil
...
...
@@ -194,6 +215,14 @@ func (s *session) commit(r *sessionRecord, trivial bool) (err error) {
// spawn new version based on current version
nv
:=
v
.
spawn
(
r
,
trivial
)
// abandon useless version id to prevent blocking version processing loop.
defer
func
()
{
if
err
!=
nil
{
s
.
abandon
<-
nv
.
id
s
.
logf
(
"commit@abandon useless vid D%d"
,
nv
.
id
)
}
}()
if
s
.
manifest
==
nil
{
// manifest journal writer not yet created, create one
err
=
s
.
newManifest
(
r
,
nv
)
...
...
@@ -203,7 +232,7 @@ func (s *session) commit(r *sessionRecord, trivial bool) (err error) {
// finally, apply new version if no error rise
if
err
==
nil
{
s
.
setVersion
(
nv
)
s
.
setVersion
(
r
,
nv
)
}
return
...
...
vendor/github.com/syndtr/goleveldb/leveldb/session_compaction.go
View file @
def1b0d7
...
...
@@ -181,10 +181,14 @@ func (c *compaction) expand() {
t0
,
t1
:=
c
.
levels
[
0
],
c
.
levels
[
1
]
imin
,
imax
:=
t0
.
getRange
(
c
.
s
.
icmp
)
// We expand t0 here just incase ukey hop across tables.
t0
=
vt0
.
getOverlaps
(
t0
,
c
.
s
.
icmp
,
imin
.
ukey
(),
imax
.
ukey
(),
c
.
sourceLevel
==
0
)
if
len
(
t0
)
!=
len
(
c
.
levels
[
0
])
{
imin
,
imax
=
t0
.
getRange
(
c
.
s
.
icmp
)
// For non-zero levels, the ukey can't hop across tables at all.
if
c
.
sourceLevel
==
0
{
// We expand t0 here just incase ukey hop across tables.
t0
=
vt0
.
getOverlaps
(
t0
,
c
.
s
.
icmp
,
imin
.
ukey
(),
imax
.
ukey
(),
c
.
sourceLevel
==
0
)
if
len
(
t0
)
!=
len
(
c
.
levels
[
0
])
{
imin
,
imax
=
t0
.
getRange
(
c
.
s
.
icmp
)
}
}
t1
=
vt1
.
getOverlaps
(
t1
,
c
.
s
.
icmp
,
imin
.
ukey
(),
imax
.
ukey
(),
false
)
// Get entire range covered by compaction.
...
...
vendor/github.com/syndtr/goleveldb/leveldb/session_util.go
View file @
def1b0d7
...
...
@@ -9,6 +9,7 @@ package leveldb
import
(
"fmt"
"sync/atomic"
"time"
"github.com/syndtr/goleveldb/leveldb/journal"
"github.com/syndtr/goleveldb/leveldb/storage"
...
...
@@ -39,19 +40,213 @@ func (s *session) newTemp() storage.FileDesc {
return
storage
.
FileDesc
{
Type
:
storage
.
TypeTemp
,
Num
:
num
}
}
func
(
s
*
session
)
addFileRef
(
fd
storage
.
FileDesc
,
ref
int
)
int
{
ref
+=
s
.
fileRef
[
fd
.
Num
]
if
ref
>
0
{
s
.
fileRef
[
fd
.
Num
]
=
ref
}
else
if
ref
==
0
{
delete
(
s
.
fileRef
,
fd
.
Num
)
}
else
{
panic
(
fmt
.
Sprintf
(
"negative ref: %v"
,
fd
))
}
return
ref
// Session state.
const
(
// maxCachedNumber represents the maximum number of version tasks
// that can be cached in the ref loop.
maxCachedNumber
=
256
// maxCachedTime represents the maximum time for ref loop to cache
// a version task.
maxCachedTime
=
5
*
time
.
Minute
)
// vDelta indicates the change information between the next version
// and the currently specified version
type
vDelta
struct
{
vid
int64
added
[]
int64
deleted
[]
int64
}
// Session state.
// vTask defines a version task for either reference or release.
type
vTask
struct
{
vid
int64
files
[]
tFiles
created
time
.
Time
}
func
(
s
*
session
)
refLoop
()
{
var
(
fileRef
=
make
(
map
[
int64
]
int
)
// Table file reference counter
ref
=
make
(
map
[
int64
]
*
vTask
)
// Current referencing version store
deltas
=
make
(
map
[
int64
]
*
vDelta
)
referenced
=
make
(
map
[
int64
]
struct
{})
released
=
make
(
map
[
int64
]
*
vDelta
)
// Released version that waiting for processing
abandoned
=
make
(
map
[
int64
]
struct
{})
// Abandoned version id
next
,
last
int64
)
// addFileRef adds file reference counter with specified file number and
// reference value
addFileRef
:=
func
(
fnum
int64
,
ref
int
)
int
{
ref
+=
fileRef
[
fnum
]
if
ref
>
0
{
fileRef
[
fnum
]
=
ref
}
else
if
ref
==
0
{
delete
(
fileRef
,
fnum
)
}
else
{
panic
(
fmt
.
Sprintf
(
"negative ref: %v"
,
fnum
))
}
return
ref
}
// skipAbandoned skips useless abandoned version id.
skipAbandoned
:=
func
()
bool
{
if
_
,
exist
:=
abandoned
[
next
];
exist
{
delete
(
abandoned
,
next
)
return
true
}
return
false
}
// applyDelta applies version change to current file reference.
applyDelta
:=
func
(
d
*
vDelta
)
{
for
_
,
t
:=
range
d
.
added
{
addFileRef
(
t
,
1
)
}
for
_
,
t
:=
range
d
.
deleted
{
if
addFileRef
(
t
,
-
1
)
==
0
{
s
.
tops
.
remove
(
storage
.
FileDesc
{
Type
:
storage
.
TypeTable
,
Num
:
t
})
}
}
}
timer
:=
time
.
NewTimer
(
0
)
<-
timer
.
C
// discard the initial tick
defer
timer
.
Stop
()
// processTasks processes version tasks in strict order.
//
// If we want to use delta to reduce the cost of file references and dereferences,
// we must strictly follow the id of the version, otherwise some files that are
// being referenced will be deleted.
//
// In addition, some db operations (such as iterators) may cause a version to be
// referenced for a long time. In order to prevent such operations from blocking
// the entire processing queue, we will properly convert some of the version tasks
// into full file references and releases.
processTasks
:=
func
()
{
timer
.
Reset
(
maxCachedTime
)
// Make sure we don't cache too many version tasks.
for
{
// Skip any abandoned version number to prevent blocking processing.
if
skipAbandoned
()
{
next
+=
1
continue
}
// Don't bother the version that has been released.
if
_
,
exist
:=
released
[
next
];
exist
{
break
}
// Ensure the specified version has been referenced.
if
_
,
exist
:=
ref
[
next
];
!
exist
{
break
}
if
last
-
next
<
maxCachedNumber
&&
time
.
Since
(
ref
[
next
]
.
created
)
<
maxCachedTime
{
break
}
// Convert version task into full file references and releases mode.
// Reference version(i+1) first and wait version(i) to release.
// FileRef(i+1) = FileRef(i) + Delta(i)
for
_
,
tt
:=
range
ref
[
next
]
.
files
{
for
_
,
t
:=
range
tt
{
addFileRef
(
t
.
fd
.
Num
,
1
)
}
}
// Note, if some compactions take a long time, even more than 5 minutes,
// we may miss the corresponding delta information here.
// Fortunately it will not affect the correctness of the file reference,
// and we can apply the delta once we receive it.
if
d
:=
deltas
[
next
];
d
!=
nil
{
applyDelta
(
d
)
}
referenced
[
next
]
=
struct
{}{}
delete
(
ref
,
next
)
delete
(
deltas
,
next
)
next
+=
1
}
// Use delta information to process all released versions.
for
{
if
skipAbandoned
()
{
next
+=
1
continue
}
if
d
,
exist
:=
released
[
next
];
exist
{
if
d
!=
nil
{
applyDelta
(
d
)
}
delete
(
released
,
next
)
next
+=
1
continue
}
return
}
}
for
{
processTasks
()
select
{
case
t
:=
<-
s
.
refCh
:
if
_
,
exist
:=
ref
[
t
.
vid
];
exist
{
panic
(
"duplicate reference request"
)
}
ref
[
t
.
vid
]
=
t
if
t
.
vid
>
last
{
last
=
t
.
vid
}
case
d
:=
<-
s
.
deltaCh
:
if
_
,
exist
:=
ref
[
d
.
vid
];
!
exist
{
if
_
,
exist2
:=
referenced
[
d
.
vid
];
!
exist2
{
panic
(
"invalid release request"
)
}
// The reference opt is already expired, apply
// delta here.
applyDelta
(
d
)
continue
}
deltas
[
d
.
vid
]
=
d
case
t
:=
<-
s
.
relCh
:
if
_
,
exist
:=
referenced
[
t
.
vid
];
exist
{
for
_
,
tt
:=
range
t
.
files
{
for
_
,
t
:=
range
tt
{
if
addFileRef
(
t
.
fd
.
Num
,
-
1
)
==
0
{
s
.
tops
.
remove
(
t
.
fd
)
}
}
}
delete
(
referenced
,
t
.
vid
)
continue
}
if
_
,
exist
:=
ref
[
t
.
vid
];
!
exist
{
panic
(
"invalid release request"
)
}
released
[
t
.
vid
]
=
deltas
[
t
.
vid
]
delete
(
deltas
,
t
.
vid
)
delete
(
ref
,
t
.
vid
)
case
id
:=
<-
s
.
abandon
:
if
id
>=
next
{
abandoned
[
id
]
=
struct
{}{}
}
case
<-
timer
.
C
:
case
r
:=
<-
s
.
fileRefCh
:
ref
:=
make
(
map
[
int64
]
int
)
for
f
,
c
:=
range
fileRef
{
ref
[
f
]
=
c
}
r
<-
ref
case
<-
s
.
closeC
:
s
.
closeW
.
Done
()
return
}
}
}
// Get current version. This will incr version ref, must call
// version.release (exactly once) after use.
...
...
@@ -69,13 +264,30 @@ func (s *session) tLen(level int) int {
}
// Set current version to v.
func
(
s
*
session
)
setVersion
(
v
*
version
)
{
func
(
s
*
session
)
setVersion
(
r
*
sessionRecord
,
v
*
version
)
{
s
.
vmu
.
Lock
()
defer
s
.
vmu
.
Unlock
()
// Hold by session. It is important to call this first before releasing
// current version, otherwise the still used files might get released.
v
.
incref
()
if
s
.
stVersion
!=
nil
{
if
r
!=
nil
{
var
(
added
=
make
([]
int64
,
0
,
len
(
r
.
addedTables
))
deleted
=
make
([]
int64
,
0
,
len
(
r
.
deletedTables
))
)
for
_
,
t
:=
range
r
.
addedTables
{
added
=
append
(
added
,
t
.
num
)
}
for
_
,
t
:=
range
r
.
deletedTables
{
deleted
=
append
(
deleted
,
t
.
num
)
}
select
{
case
s
.
deltaCh
<-
&
vDelta
{
vid
:
s
.
stVersion
.
id
,
added
:
added
,
deleted
:
deleted
}
:
case
<-
v
.
s
.
closeC
:
s
.
log
(
"reference loop already exist"
)
}
}
// Release current version.
s
.
stVersion
.
releaseNB
()
}
...
...
vendor/github.com/syndtr/goleveldb/leveldb/table.go
View file @
def1b0d7
...
...
@@ -7,6 +7,7 @@
package
leveldb
import
(
"bytes"
"fmt"
"sort"
"sync/atomic"
...
...
@@ -158,6 +159,22 @@ func (tf tFiles) searchNumLess(num int64) int {
})
}
// Searches smallest index of tables whose its smallest
// key is after the given key.
func
(
tf
tFiles
)
searchMinUkey
(
icmp
*
iComparer
,
umin
[]
byte
)
int
{
return
sort
.
Search
(
len
(
tf
),
func
(
i
int
)
bool
{
return
icmp
.
ucmp
.
Compare
(
tf
[
i
]
.
imin
.
ukey
(),
umin
)
>
0
})
}
// Searches smallest index of tables whose its largest
// key is after the given key.
func
(
tf
tFiles
)
searchMaxUkey
(
icmp
*
iComparer
,
umax
[]
byte
)
int
{
return
sort
.
Search
(
len
(
tf
),
func
(
i
int
)
bool
{
return
icmp
.
ucmp
.
Compare
(
tf
[
i
]
.
imax
.
ukey
(),
umax
)
>
0
})
}
// Returns true if given key range overlaps with one or more
// tables key range. If unsorted is true then binary search will not be used.
func
(
tf
tFiles
)
overlaps
(
icmp
*
iComparer
,
umin
,
umax
[]
byte
,
unsorted
bool
)
bool
{
...
...
@@ -189,6 +206,50 @@ func (tf tFiles) overlaps(icmp *iComparer, umin, umax []byte, unsorted bool) boo
// expanded.
// The dst content will be overwritten.
func
(
tf
tFiles
)
getOverlaps
(
dst
tFiles
,
icmp
*
iComparer
,
umin
,
umax
[]
byte
,
overlapped
bool
)
tFiles
{
// Short circuit if tf is empty
if
len
(
tf
)
==
0
{
return
nil
}
// For non-zero levels, there is no ukey hop across at all.
// And what's more, the files in these levels are strictly sorted,
// so use binary search instead of heavy traverse.
if
!
overlapped
{
var
begin
,
end
int
// Determine the begin index of the overlapped file
if
umin
!=
nil
{
index
:=
tf
.
searchMinUkey
(
icmp
,
umin
)
if
index
==
0
{
begin
=
0
}
else
if
bytes
.
Compare
(
tf
[
index
-
1
]
.
imax
.
ukey
(),
umin
)
>=
0
{
// The min ukey overlaps with the index-1 file, expand it.
begin
=
index
-
1
}
else
{
begin
=
index
}
}
// Determine the end index of the overlapped file
if
umax
!=
nil
{
index
:=
tf
.
searchMaxUkey
(
icmp
,
umax
)
if
index
==
len
(
tf
)
{
end
=
len
(
tf
)
}
else
if
bytes
.
Compare
(
tf
[
index
]
.
imin
.
ukey
(),
umax
)
<=
0
{
// The max ukey overlaps with the index file, expand it.
end
=
index
+
1
}
else
{
end
=
index
}
}
else
{
end
=
len
(
tf
)
}
// Ensure the overlapped file indexes are valid.
if
begin
>=
end
{
return
nil
}
dst
=
make
([]
*
tFile
,
end
-
begin
)
copy
(
dst
,
tf
[
begin
:
end
])
return
dst
}
dst
=
dst
[
:
0
]
for
i
:=
0
;
i
<
len
(
tf
);
{
t
:=
tf
[
i
]
...
...
@@ -201,11 +262,9 @@ func (tf tFiles) getOverlaps(dst tFiles, icmp *iComparer, umin, umax []byte, ove
}
else
if
umax
!=
nil
&&
icmp
.
uCompare
(
t
.
imax
.
ukey
(),
umax
)
>
0
{
umax
=
t
.
imax
.
ukey
()
// Restart search if it is overlapped.
if
overlapped
{
dst
=
dst
[
:
0
]
i
=
0
continue
}
dst
=
dst
[
:
0
]
i
=
0
continue
}
dst
=
append
(
dst
,
t
)
...
...
@@ -424,15 +483,15 @@ func (t *tOps) newIterator(f *tFile, slice *util.Range, ro *opt.ReadOptions) ite
// Removes table from persistent storage. It waits until
// no one use the the table.
func
(
t
*
tOps
)
remove
(
f
*
tFile
)
{
t
.
cache
.
Delete
(
0
,
uint64
(
f
.
f
d
.
Num
),
func
()
{
if
err
:=
t
.
s
.
stor
.
Remove
(
f
.
f
d
);
err
!=
nil
{
t
.
s
.
logf
(
"table@remove removing @%d %q"
,
f
.
f
d
.
Num
,
err
)
func
(
t
*
tOps
)
remove
(
f
d
storage
.
FileDesc
)
{
t
.
cache
.
Delete
(
0
,
uint64
(
fd
.
Num
),
func
()
{
if
err
:=
t
.
s
.
stor
.
Remove
(
fd
);
err
!=
nil
{
t
.
s
.
logf
(
"table@remove removing @%d %q"
,
fd
.
Num
,
err
)
}
else
{
t
.
s
.
logf
(
"table@remove removed @%d"
,
f
.
f
d
.
Num
)
t
.
s
.
logf
(
"table@remove removed @%d"
,
fd
.
Num
)
}
if
t
.
evictRemoved
&&
t
.
bcache
!=
nil
{
t
.
bcache
.
EvictNS
(
uint64
(
f
.
f
d
.
Num
))
t
.
bcache
.
EvictNS
(
uint64
(
fd
.
Num
))
}
})
}
...
...
vendor/github.com/syndtr/goleveldb/leveldb/version.go
View file @
def1b0d7
...
...
@@ -9,6 +9,7 @@ package leveldb
import
(
"fmt"
"sync/atomic"
"time"
"unsafe"
"github.com/syndtr/goleveldb/leveldb/iterator"
...
...
@@ -22,7 +23,8 @@ type tSet struct {
}
type
version
struct
{
s
*
session
id
int64
// unique monotonous increasing version id
s
*
session
levels
[]
tFiles
...
...
@@ -39,8 +41,11 @@ type version struct {
released
bool
}
// newVersion creates a new version with an unique monotonous increasing id.
func
newVersion
(
s
*
session
)
*
version
{
return
&
version
{
s
:
s
}
id
:=
atomic
.
AddInt64
(
&
s
.
ntVersionId
,
1
)
nv
:=
&
version
{
s
:
s
,
id
:
id
-
1
}
return
nv
}
func
(
v
*
version
)
incref
()
{
...
...
@@ -50,11 +55,11 @@ func (v *version) incref() {
v
.
ref
++
if
v
.
ref
==
1
{
// Incr file ref.
for
_
,
tt
:=
range
v
.
levels
{
for
_
,
t
:=
range
tt
{
v
.
s
.
addFileRef
(
t
.
fd
,
1
)
}
select
{
case
v
.
s
.
refCh
<-
&
vTask
{
vid
:
v
.
id
,
files
:
v
.
levels
,
created
:
time
.
Now
()}
:
// We can use v.levels directly here since it is immutable.
case
<-
v
.
s
.
closeC
:
v
.
s
.
log
(
"reference loop already exist"
)
}
}
}
...
...
@@ -66,13 +71,11 @@ func (v *version) releaseNB() {
}
else
if
v
.
ref
<
0
{
panic
(
"negative version ref"
)
}
for
_
,
tt
:=
range
v
.
levels
{
for
_
,
t
:=
range
tt
{
if
v
.
s
.
addFileRef
(
t
.
fd
,
-
1
)
==
0
{
v
.
s
.
tops
.
remove
(
t
)
}
}
select
{
case
v
.
s
.
relCh
<-
&
vTask
{
vid
:
v
.
id
,
files
:
v
.
levels
,
created
:
time
.
Now
()}
:
// We can use v.levels directly here since it is immutable.
case
<-
v
.
s
.
closeC
:
v
.
s
.
log
(
"reference loop already exist"
)
}
v
.
released
=
true
...
...
vendor/vendor.json
View file @
def1b0d7
...
...
@@ -478,10 +478,10 @@
"revisionTime"
:
"2017-07-05T02:17:15Z"
},
{
"checksumSHA1"
:
"4
vxle8JfbPDO0ndiBUjMmRXGBQM
="
,
"checksumSHA1"
:
"4
NTmfUj7H5J59M2wCnp3/8FWt1I
="
,
"path"
:
"github.com/syndtr/goleveldb/leveldb"
,
"revision"
:
"
3a907f965fc16db5f7787e18d4434bbe46d47f6e
"
,
"revisionTime"
:
"2019-03-
04T06:08:05
Z"
"revision"
:
"
c3a204f8e96543bb0cc090385c001078f184fc46
"
,
"revisionTime"
:
"2019-03-
18T03:00:20
Z"
},
{
"checksumSHA1"
:
"mPNraL2edpk/2FYq26rSXfMHbJg="
,
...
...
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