improving the C wrapper
Summary: - rocksdb_property_int (so that we don't have to parse strings) - and rocksdb_set_options (to allow controlling options via strings) - a few other missing options exposed - a documentation comment fix Closes https://github.com/facebook/rocksdb/pull/1793 Differential Revision: D4456569 Pulled By: yiwu-arbug fbshipit-source-id: 9f1fac1
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04c4ec41d1
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31
db/c.cc
31
db/c.cc
@ -901,6 +901,17 @@ char* rocksdb_property_value(
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}
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}
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int rocksdb_property_int(
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rocksdb_t* db,
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const char* propname,
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uint64_t *out_val) {
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if (db->rep->GetIntProperty(Slice(propname), out_val)) {
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return 0;
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} else {
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return -1;
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}
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}
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char* rocksdb_property_value_cf(
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rocksdb_t* db,
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rocksdb_column_family_handle_t* column_family,
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@ -1487,6 +1498,14 @@ void rocksdb_options_set_cuckoo_table_factory(
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}
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}
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void rocksdb_set_options(
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rocksdb_t* db, int count, const char* const keys[], const char* const values[], char** errptr) {
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std::unordered_map<std::string, std::string> options_map;
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for (int i=0; i<count; i++)
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options_map[keys[i]] = values[i];
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SaveError(errptr,
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db->rep->SetOptions(options_map));
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}
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rocksdb_options_t* rocksdb_options_create() {
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return new rocksdb_options_t;
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@ -1871,6 +1890,14 @@ void rocksdb_options_set_hard_rate_limit(rocksdb_options_t* opt, double v) {
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opt->rep.hard_rate_limit = v;
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}
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void rocksdb_options_set_soft_pending_compaction_bytes_limit(rocksdb_options_t* opt, size_t v) {
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opt->rep.soft_pending_compaction_bytes_limit = v;
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}
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void rocksdb_options_set_hard_pending_compaction_bytes_limit(rocksdb_options_t* opt, size_t v) {
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opt->rep.hard_pending_compaction_bytes_limit = v;
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}
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void rocksdb_options_set_rate_limit_delay_max_milliseconds(
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rocksdb_options_t* opt, unsigned int v) {
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opt->rep.rate_limit_delay_max_milliseconds = v;
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@ -1900,6 +1927,10 @@ void rocksdb_options_set_disable_auto_compactions(rocksdb_options_t* opt, int di
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opt->rep.disable_auto_compactions = disable;
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}
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void rocksdb_options_set_optimize_filters_for_hits(rocksdb_options_t* opt, int v) {
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opt->rep.optimize_filters_for_hits = v;
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}
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void rocksdb_options_set_delete_obsolete_files_period_micros(
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rocksdb_options_t* opt, uint64_t v) {
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opt->rep.delete_obsolete_files_period_micros = v;
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@ -289,6 +289,10 @@ extern ROCKSDB_LIBRARY_API void rocksdb_release_snapshot(
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Else returns a pointer to a malloc()-ed null-terminated value. */
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extern ROCKSDB_LIBRARY_API char* rocksdb_property_value(rocksdb_t* db,
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const char* propname);
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/* returns 0 on success, -1 otherwise */
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int rocksdb_property_int(
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rocksdb_t* db,
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const char* propname, uint64_t *out_val);
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extern ROCKSDB_LIBRARY_API char* rocksdb_property_value_cf(
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rocksdb_t* db, rocksdb_column_family_handle_t* column_family,
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@ -525,6 +529,8 @@ extern ROCKSDB_LIBRARY_API void rocksdb_options_set_cuckoo_table_factory(
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rocksdb_options_t* opt, rocksdb_cuckoo_table_options_t* table_options);
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/* Options */
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extern ROCKSDB_LIBRARY_API void rocksdb_set_options(
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rocksdb_t* db, int count, const char* const keys[], const char* const values[], char** errptr);
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extern ROCKSDB_LIBRARY_API rocksdb_options_t* rocksdb_options_create();
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extern ROCKSDB_LIBRARY_API void rocksdb_options_destroy(rocksdb_options_t*);
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@ -634,6 +640,10 @@ extern ROCKSDB_LIBRARY_API void rocksdb_options_set_soft_rate_limit(
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rocksdb_options_t*, double);
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extern ROCKSDB_LIBRARY_API void rocksdb_options_set_hard_rate_limit(
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rocksdb_options_t*, double);
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extern ROCKSDB_LIBRARY_API void rocksdb_options_set_soft_pending_compaction_bytes_limit(
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rocksdb_options_t* opt, size_t v);
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extern ROCKSDB_LIBRARY_API void rocksdb_options_set_hard_pending_compaction_bytes_limit(
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rocksdb_options_t* opt, size_t v);
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extern ROCKSDB_LIBRARY_API void
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rocksdb_options_set_rate_limit_delay_max_milliseconds(rocksdb_options_t*,
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unsigned int);
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@ -699,6 +709,8 @@ extern ROCKSDB_LIBRARY_API void rocksdb_options_set_disable_data_sync(
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rocksdb_options_t*, int);
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extern ROCKSDB_LIBRARY_API void rocksdb_options_set_disable_auto_compactions(
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rocksdb_options_t*, int);
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extern ROCKSDB_LIBRARY_API void rocksdb_options_set_optimize_filters_for_hits(
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rocksdb_options_t*, int);
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extern ROCKSDB_LIBRARY_API void
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rocksdb_options_set_delete_obsolete_files_period_micros(rocksdb_options_t*,
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uint64_t);
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@ -464,7 +464,7 @@ class DB {
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static const std::string kNumDeletesImmMemTables;
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// "rocksdb.estimate-num-keys" - returns estimated number of total keys in
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// the active and unflushed immutable memtables.
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// the active and unflushed immutable memtables and storage.
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static const std::string kEstimateNumKeys;
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// "rocksdb.estimate-table-readers-mem" - returns estimated memory used for
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