addresses #821

Implement db->keyrange64
there is no transaction argument at the moment
there is no *is_exact argument

git-svn-id: file:///svn/tokudb@3938 c7de825b-a66e-492c-adef-691d508d4ae1

src/ydb.c

@@ -2605,6 +2605,22 @@ static int toku_db_fd(DB *db, int *fdp) {
     return toku_brt_get_fd(db->i->brt, fdp);
 }
 
+static int toku_db_keyrange64(DB* db, DB_TXN* txn __attribute__((__unused__)), DBT* key, u_int64_t* less, u_int64_t* equal, u_int64_t* greater, int* is_exact) {
+    HANDLE_PANICKED_DB(db);
+
+    // note that toku_brt_keyrange does not have a txn param
+    // this will be fixed later
+    // temporarily, because the caller, locked_db_keyrange, 
+    // has the ydb lock, we are ok
+    int r = toku_brt_keyrange(db->i->brt, key, less, equal, greater);
+    if (r != 0) { goto cleanup; }
+    // temporarily set is_exact to 0 because brt_keyrange does not have this parameter
+    *is_exact = 0;
+cleanup:
+    return r;
+}
+
+
 //TODO: DB_AUTO_COMMIT.
 //TODO: Nowait only conditionally?
 //TODO: NOSYNC change to SYNC if DB_ENV has something in set_flags
@@ -2761,6 +2777,11 @@ static int locked_db_fd(DB *db, int *fdp) {
     toku_ydb_lock(); int r = toku_db_fd(db, fdp); toku_ydb_unlock(); return r;
 }
 
+
+static int locked_db_keyrange64(DB* db, DB_TXN* txn, DBT* dbt, u_int64_t* less, u_int64_t* equal, u_int64_t* greater, int* is_exact) {
+    toku_ydb_lock(); int r = toku_db_keyrange64(db, txn, dbt, less, equal, greater, is_exact); toku_ydb_unlock(); return r;
+}
+
 static int toku_db_create(DB ** db, DB_ENV * env, u_int32_t flags) {
     int r;
 
@@ -2790,6 +2811,7 @@ static int toku_db_create(DB ** db, DB_ENV * env, u_int32_t flags) {
         return ENOMEM;
     }
     memset(result, 0, sizeof *result);
+    result->key_range64 = locked_db_keyrange64;
     result->dbenv = env;
     result->associate = locked_db_associate;
     result->close = locked_db_close;