C++ (Cpp) mdb_cursor_dbi Examples

Example #1

File: 2014-10-18-cursor-pfx.c Project: andreydelpozo2/stronglink

int db_cursor_seek(MDB_cursor *const cursor, MDB_val *const key, MDB_val *const data, int const dir) {
	if(!key) return EINVAL;
	MDB_val const orig = *key;
	MDB_cursor_op const op = 0 == dir ? MDB_SET : MDB_SET_RANGE;
	int rc = mdb_cursor_get(cursor, key, data, op);
	if(dir >= 0) return rc;
	if(MDB_SUCCESS == rc) {
		MDB_txn *const txn = mdb_cursor_txn(cursor);
		MDB_dbi const dbi = mdb_cursor_dbi(cursor);
		if(0 == mdb_cmp(txn, dbi, &orig, key)) return rc;
	} else if(MDB_NOTFOUND != rc) return rc;
	return mdb_cursor_get(cursor, key, data, MDB_PREV);
}

Example #2

File: jmdb.c Project: cirnoworks/jmdb

/*
 * Class:     jmdb_DatabaseWrapper
 * Method:    cursorDbi
 * Signature: (J)I
 */
JNIEXPORT jint JNICALL Java_jmdb_DatabaseWrapper_cursorDbi(JNIEnv *vm,
		jclass clazz, jlong cursorL) {
	MDB_cursor *cursorC = (MDB_cursor*) cursorL;
	return (jint) mdb_cursor_dbi(cursorC);
}