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Fix memorty leak in rocksdb_wal_iter_get_batch function (#5515)

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Summary:
`wal_batch.writeBatchPtr.release()` gives up the ownership of the original `WriteBatch`, but there is no new owner, which causes memory leak.

The patch is simple. Removing `release()` prevent ownership change. `std::move` is for speed.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/5515

Differential Revision: D16264281

Pulled By: riversand963

fbshipit-source-id: 51c556b7a1c977325c3aa24acb636303847151fa
This commit is contained in:
Jim Lin 2019-07-15 12:55:37 -07:00 committed by Facebook Github Bot
parent 6e8a1354a7
commit cd2520361d
1 changed files with 1 additions and 1 deletions
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2
db/c.cc
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@ -1034,7 +1034,7 @@ void rocksdb_wal_iter_destroy (const rocksdb_wal_iterator_t* iter) {
rocksdb_writebatch_t* rocksdb_wal_iter_get_batch (const rocksdb_wal_iterator_t* iter, uint64_t* seq) {
rocksdb_writebatch_t* result = rocksdb_writebatch_create();
BatchResult wal_batch = iter->rep->GetBatch();
result->rep = * wal_batch.writeBatchPtr.release();
result->rep = std::move(*wal_batch.writeBatchPtr);
if (seq != nullptr) {
*seq = wal_batch.sequence;
}