Method rename

core/src/main/java/io/questdb/std/FdCache.java:225–236

Renames file in the filesystem and updates cache. @param oldName Old file name @param newName New file name @return 0 on success, -1 on failure

(LPSZ oldName, LPSZ newName)

     * @return 0 on success, -1 on failure
     */
    public synchronized int rename(LPSZ oldName, LPSZ newName) {
        int keyIndex = openFdMapByPath.keyIndex(oldName);
        int result = Files.rename(oldName.ptr(), newName.ptr());
        if (result == 0 && keyIndex < 0) {
            FdCacheRecord record = openFdMapByPath.valueAt(keyIndex);
            openFdMapByPath.removeAt(keyIndex);
            Utf8String path = Utf8String.newInstance(newName);
            openFdMapByPath.put(path, record);
            record.path = path;
        }
        return result;
    }

    /**
     * Retrieves memory map cache key for given file descriptor.