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dms3
go-ds-leveldb
Commits
87475fd1
Commit
87475fd1
authored
Jul 26, 2016
by
Jeromy
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implement batching for leveldb
parent
fa5ecb98
Changes
2
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2 changed files
with
64 additions
and
5 deletions
+64
-5
datastore.go
datastore.go
+31
-5
ds_test.go
ds_test.go
+33
-0
No files found.
datastore.go
View file @
87475fd1
...
@@ -147,14 +147,40 @@ func (d *datastore) runQuery(worker goprocess.Process, qrb *dsq.ResultBuilder) {
...
@@ -147,14 +147,40 @@ func (d *datastore) runQuery(worker goprocess.Process, qrb *dsq.ResultBuilder) {
}
}
}
}
func
(
d
*
datastore
)
Batch
()
(
ds
.
Batch
,
error
)
{
// TODO: implement batch on leveldb
return
nil
,
ds
.
ErrBatchUnsupported
}
// LevelDB needs to be closed.
// LevelDB needs to be closed.
func
(
d
*
datastore
)
Close
()
(
err
error
)
{
func
(
d
*
datastore
)
Close
()
(
err
error
)
{
return
d
.
DB
.
Close
()
return
d
.
DB
.
Close
()
}
}
func
(
d
*
datastore
)
IsThreadSafe
()
{}
func
(
d
*
datastore
)
IsThreadSafe
()
{}
type
leveldbBatch
struct
{
b
*
leveldb
.
Batch
db
*
leveldb
.
DB
}
func
(
d
*
datastore
)
Batch
()
(
ds
.
Batch
,
error
)
{
return
&
leveldbBatch
{
b
:
new
(
leveldb
.
Batch
),
db
:
d
.
DB
,
},
nil
}
func
(
b
*
leveldbBatch
)
Put
(
key
ds
.
Key
,
value
interface
{})
error
{
val
,
ok
:=
value
.
([]
byte
)
if
!
ok
{
return
ds
.
ErrInvalidType
}
b
.
b
.
Put
(
key
.
Bytes
(),
val
)
return
nil
}
func
(
b
*
leveldbBatch
)
Commit
()
error
{
return
b
.
db
.
Write
(
b
.
b
,
nil
)
}
func
(
b
*
leveldbBatch
)
Delete
(
key
ds
.
Key
)
error
{
b
.
b
.
Delete
(
key
.
Bytes
())
return
nil
}
ds_test.go
View file @
87475fd1
...
@@ -122,3 +122,36 @@ func expectMatches(t *testing.T, expect []string, actualR dsq.Results) {
...
@@ -122,3 +122,36 @@ func expectMatches(t *testing.T, expect []string, actualR dsq.Results) {
}
}
}
}
}
}
func
TestBatching
(
t
*
testing
.
T
)
{
d
,
done
:=
newDS
(
t
)
defer
done
()
b
,
err
:=
d
.
Batch
()
if
err
!=
nil
{
t
.
Fatal
(
err
)
}
for
k
,
v
:=
range
testcases
{
err
:=
b
.
Put
(
ds
.
NewKey
(
k
),
[]
byte
(
v
))
if
err
!=
nil
{
t
.
Fatal
(
err
)
}
}
err
=
b
.
Commit
()
if
err
!=
nil
{
t
.
Fatal
(
err
)
}
for
k
,
v
:=
range
testcases
{
val
,
err
:=
d
.
Get
(
ds
.
NewKey
(
k
))
if
err
!=
nil
{
t
.
Fatal
(
err
)
}
if
v
!=
string
(
val
.
([]
byte
))
{
t
.
Fatal
(
"got wrong data!"
)
}
}
}
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