C code - Nginx: add support to Nginx upload progress to track multiple files upload

Hello, I need you to add support for tracking multiple files to my Nginx webserver + Nginx progress upload module. Actual output by this Nginx progress module is { "state" : "uploading", "received" : 14283604, "size" : 106103097 } The problem is, that it throws just one size, size is sum of all your files you try to upload, but I need instead of that some output like { File[0] => ("state" : "uploading", "received" : 14283604, "size" : 106103097), File[1] => ("state" : "uploading", "received" : 1930032, "size" : 34671132), } or something like this, the output structure does not matter at all, I just need to be able to trace several files, not just all files together as sum of 1 file. Here is the source code of the Nginx upload progress module [login to view URL]