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Write batch for `TransactionDB` in C API 

Summary: Closes https://github.com/facebook/rocksdb/pull/2655

Differential Revision: D5600858

Pulled By: yiwu-arbug

fbshipit-source-id: cf52f9104e348438bf168dc6bf7af3837faf12ef
This commit is contained in:
Oleksandr Anyshchenko 2017-08-10 11:39:32 -07:00 committed by Facebook Github Bot
parent 6a9de43477
commit 0cecf8155b
3 changed files with 25 additions and 0 deletions
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10
db/c.cc
View File

@ -3363,6 +3363,16 @@ void rocksdb_transactiondb_put(rocksdb_transactiondb_t* txn_db,
txn_db->rep->Put(options->rep, Slice(key, klen), Slice(val, vlen)));
}
//Write batch into transaction db
void rocksdb_transactiondb_write(
rocksdb_transactiondb_t* db,
const rocksdb_writeoptions_t* options,
rocksdb_writebatch_t* batch,
char** errptr) {
SaveError(errptr, db->rep->Write(options->rep, &batch->rep));
}
// Delete a key inside a transaction
void rocksdb_transaction_delete(rocksdb_transaction_t* txn, const char* key,
size_t klen, char** errptr) {

11
db/c_test.c
View File

@ -1365,6 +1365,17 @@ int main(int argc, char** argv) {
CheckNoError(err);
CheckTxnDBGet(txn_db, roptions, "foo", NULL);
// write batch into TransactionDB
rocksdb_writebatch_t* wb = rocksdb_writebatch_create();
rocksdb_writebatch_put(wb, "foo", 3, "a", 1);
rocksdb_writebatch_clear(wb);
rocksdb_writebatch_put(wb, "bar", 3, "b", 1);
rocksdb_writebatch_put(wb, "box", 3, "c", 1);
rocksdb_writebatch_delete(wb, "bar", 3);
rocksdb_transactiondb_write(txn_db, woptions, wb, &err);
CheckTxnDBGet(txn_db, roptions, "box", "c");
CheckNoError(err);
// begin a transaction
txn = rocksdb_transaction_begin(txn_db, woptions, txn_options, NULL);
// put

4
include/rocksdb/c.h
View File

@ -1298,6 +1298,10 @@ extern ROCKSDB_LIBRARY_API void rocksdb_transactiondb_put(
rocksdb_transactiondb_t* txn_db, const rocksdb_writeoptions_t* options,
const char* key, size_t klen, const char* val, size_t vlen, char** errptr);
extern ROCKSDB_LIBRARY_API void rocksdb_transactiondb_write(
rocksdb_transactiondb_t* txn_db, const rocksdb_writeoptions_t* options,
rocksdb_writebatch_t *batch, char** errptr);
extern ROCKSDB_LIBRARY_API void rocksdb_transaction_delete(
rocksdb_transaction_t* txn, const char* key, size_t klen, char** errptr);