add C api for set wal_recovery_mode (#1327)

* add C api for set wal recovery mode

* add test

db/c.cc

@@ -43,6 +43,7 @@ using rocksdb::CompactionFilterContext;
 using rocksdb::CompactionOptionsFIFO;
 using rocksdb::Comparator;
 using rocksdb::CompressionType;
+using rocksdb::WALRecoveryMode;
 using rocksdb::DB;
 using rocksdb::DBOptions;
 using rocksdb::Env;
@@ -1554,6 +1555,10 @@ void rocksdb_options_set_level0_stop_writes_trigger(
 void rocksdb_options_set_max_mem_compaction_level(rocksdb_options_t* opt,
                                                   int n) {}
 
+void rocksdb_options_set_wal_recovery_mode(rocksdb_options_t* opt,int mode) {
+  opt->rep.wal_recovery_mode = static_cast<WALRecoveryMode>(mode);
+}
+
 void rocksdb_options_set_compression(rocksdb_options_t* opt, int t) {
   opt->rep.compression = static_cast<CompressionType>(t);
 }

db/c_test.c

@@ -575,6 +575,7 @@ int main(int argc, char** argv) {
     rocksdb_close(db);
     rocksdb_options_set_create_if_missing(options, 0);
     rocksdb_options_set_error_if_exists(options, 0);
+    rocksdb_options_set_wal_recovery_mode(options, 2);
     rocksdb_repair_db(options, dbname, &err);
     CheckNoError(err);
     db = rocksdb_open(options, dbname, &err);

include/rocksdb/c.h

@@ -690,6 +690,15 @@ extern ROCKSDB_LIBRARY_API void rocksdb_options_set_inplace_update_num_locks(
 extern ROCKSDB_LIBRARY_API void rocksdb_options_set_report_bg_io_stats(
     rocksdb_options_t*, int);
 
+enum {
+  rocksdb_tolerate_corrupted_tail_records_recovery = 0,
+  rocksdb_absolute_consistency_recovery = 1,
+  rocksdb_point_in_time_recovery = 2,
+  rocksdb_skip_any_corrupted_records_recovery = 3
+};
+extern ROCKSDB_LIBRARY_API void rocksdb_options_set_wal_recovery_mode(
+    rocksdb_options_t*, int);
+
 enum {
   rocksdb_no_compression = 0,
   rocksdb_snappy_compression = 1,