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C API: support total_order_mode

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Summary: Closes https://github.com/facebook/rocksdb/pull/1687

Differential Revision: D4349210

Pulled By: IslamAbdelRahman

fbshipit-source-id: 32d0fbd
This commit is contained in:
siddontang 2017-01-03 18:21:55 -08:00 committed by Facebook Github Bot
parent 85ac1a320a
commit 653ac1f9c6
3 changed files with 20 additions and 0 deletions
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5
db/c.cc
View File

@ -2256,6 +2256,11 @@ void rocksdb_readoptions_set_pin_data(rocksdb_readoptions_t* opt,
opt->rep.pin_data = v; opt->rep.pin_data = v;
} }
void rocksdb_readoptions_set_total_order_seek(rocksdb_readoptions_t* opt,
unsigned char v) {
opt->rep.total_order_seek = v;
}
rocksdb_writeoptions_t* rocksdb_writeoptions_create() { rocksdb_writeoptions_t* rocksdb_writeoptions_create() {
return new rocksdb_writeoptions_t; return new rocksdb_writeoptions_t;
} }

13
db/c_test.c
View File

@ -989,6 +989,19 @@ int main(int argc, char** argv) {
CheckNoError(err); CheckNoError(err);
rocksdb_iter_destroy(iter); rocksdb_iter_destroy(iter);
rocksdb_readoptions_set_total_order_seek(roptions, 1);
iter = rocksdb_create_iterator(db, roptions);
CheckCondition(!rocksdb_iter_valid(iter));
rocksdb_iter_seek(iter, "ba", 2);
rocksdb_iter_get_error(iter, &err);
CheckNoError(err);
CheckCondition(rocksdb_iter_valid(iter));
CheckIter(iter, "bar1", "bar");
rocksdb_iter_destroy(iter);
rocksdb_readoptions_set_total_order_seek(roptions, 0);
rocksdb_close(db); rocksdb_close(db);
rocksdb_destroy_db(options, dbname, &err); rocksdb_destroy_db(options, dbname, &err);
} }

2
include/rocksdb/c.h
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@ -879,6 +879,8 @@ extern ROCKSDB_LIBRARY_API void rocksdb_readoptions_set_readahead_size(
rocksdb_readoptions_t*, size_t); rocksdb_readoptions_t*, size_t);
extern ROCKSDB_LIBRARY_API void rocksdb_readoptions_set_pin_data( extern ROCKSDB_LIBRARY_API void rocksdb_readoptions_set_pin_data(
rocksdb_readoptions_t*, unsigned char); rocksdb_readoptions_t*, unsigned char);
extern ROCKSDB_LIBRARY_API void rocksdb_readoptions_set_total_order_seek(
rocksdb_readoptions_t*, unsigned char);
/* Write options */ /* Write options */