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6f01687a
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rocksdb
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rocksdb
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体验新版 GitCode,发现更多精彩内容 >>
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6f01687a
编写于
4月 22, 2016
作者:
N
Naitik Shah
提交者:
Siying Dong
4月 22, 2016
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差异文件
C rocksdb_create_iterators to expose NewIterators (#1069)
上级
644f978c
变更
3
隐藏空白更改
内联
并排
Showing
3 changed file
with
54 addition
and
0 deletion
+54
-0
db/c.cc
db/c.cc
+25
-0
db/c_test.c
db/c_test.c
+24
-0
include/rocksdb/c.h
include/rocksdb/c.h
+5
-0
未找到文件。
db/c.cc
浏览文件 @
6f01687a
...
...
@@ -825,6 +825,31 @@ rocksdb_iterator_t* rocksdb_create_iterator_cf(
return
result
;
}
void
rocksdb_create_iterators
(
rocksdb_t
*
db
,
rocksdb_readoptions_t
*
opts
,
rocksdb_column_family_handle_t
**
column_families
,
rocksdb_iterator_t
**
iterators
,
size_t
size
,
char
**
errptr
)
{
std
::
vector
<
ColumnFamilyHandle
*>
column_families_vec
;
for
(
size_t
i
=
0
;
i
<
size
;
i
++
)
{
column_families_vec
.
push_back
(
column_families
[
i
]
->
rep
);
}
std
::
vector
<
Iterator
*>
res
;
Status
status
=
db
->
rep
->
NewIterators
(
opts
->
rep
,
column_families_vec
,
&
res
);
assert
(
res
.
size
()
==
size
);
if
(
SaveError
(
errptr
,
status
))
{
return
;
}
for
(
size_t
i
=
0
;
i
<
size
;
i
++
)
{
iterators
[
i
]
=
new
rocksdb_iterator_t
;
iterators
[
i
]
->
rep
=
res
[
i
];
}
}
const
rocksdb_snapshot_t
*
rocksdb_create_snapshot
(
rocksdb_t
*
db
)
{
rocksdb_snapshot_t
*
result
=
new
rocksdb_snapshot_t
;
...
...
db/c_test.c
浏览文件 @
6f01687a
...
...
@@ -768,6 +768,30 @@ int main(int argc, char** argv) {
CheckNoError
(
err
);
rocksdb_iter_destroy
(
iter
);
rocksdb_column_family_handle_t
*
iters_cf_handles
[
2
]
=
{
handles
[
0
],
handles
[
1
]
};
rocksdb_iterator_t
*
iters_handles
[
2
];
rocksdb_create_iterators
(
db
,
roptions
,
iters_cf_handles
,
iters_handles
,
2
,
&
err
);
CheckNoError
(
err
);
iter
=
iters_handles
[
0
];
CheckCondition
(
!
rocksdb_iter_valid
(
iter
));
rocksdb_iter_seek_to_first
(
iter
);
CheckCondition
(
!
rocksdb_iter_valid
(
iter
));
rocksdb_iter_destroy
(
iter
);
iter
=
iters_handles
[
1
];
CheckCondition
(
!
rocksdb_iter_valid
(
iter
));
rocksdb_iter_seek_to_first
(
iter
);
CheckCondition
(
rocksdb_iter_valid
(
iter
));
for
(
i
=
0
;
rocksdb_iter_valid
(
iter
)
!=
0
;
rocksdb_iter_next
(
iter
))
{
i
++
;
}
CheckCondition
(
i
==
1
);
rocksdb_iter_get_error
(
iter
,
&
err
);
CheckNoError
(
err
);
rocksdb_iter_destroy
(
iter
);
rocksdb_drop_column_family
(
db
,
handles
[
1
],
&
err
);
CheckNoError
(
err
);
for
(
i
=
0
;
i
<
2
;
i
++
)
{
...
...
include/rocksdb/c.h
浏览文件 @
6f01687a
...
...
@@ -266,6 +266,11 @@ extern ROCKSDB_LIBRARY_API rocksdb_iterator_t* rocksdb_create_iterator_cf(
rocksdb_t
*
db
,
const
rocksdb_readoptions_t
*
options
,
rocksdb_column_family_handle_t
*
column_family
);
extern
ROCKSDB_LIBRARY_API
void
rocksdb_create_iterators
(
rocksdb_t
*
db
,
rocksdb_readoptions_t
*
opts
,
rocksdb_column_family_handle_t
**
column_families
,
rocksdb_iterator_t
**
iterators
,
size_t
size
,
char
**
errptr
);
extern
ROCKSDB_LIBRARY_API
const
rocksdb_snapshot_t
*
rocksdb_create_snapshot
(
rocksdb_t
*
db
);
...
...
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