Does not support sending very large files

[aswinshenoy]

Chunking takes some while and fails while trying to send very large files.

[aswinshenoy]

One of the cause can be #14 due to memory limit caused due to flawed chunking algorithm.

[aswinshenoy]

One of the cause can be #14 due to memory limit caused due to flawed chunking algorithm.

The chunking algorithm on the sender's side seems to have been fixed (check #14 for stress test done by @MidhunSureshR) with the introduction of new chunking algorithm that only produces the next chunk and stores instead of creating and storing whole file at the beginning.

New algorithm

        const slice = this._file.slice(
            this._offset,
            this._offset + this._chunkSize
        );
        return await new Blob([slice]).arrayBuffer().then((buffer) => buffer);
    };

The following script is now obsolete and should be removed. https://github.com/aswinshenoy/BayJDO/blob/master/functions/getChunksFromFile.js

export default async function getChunksFromFile(file, chunkSize = 6 * 1024 * 1024) {
    if(file) {
        return await file.arrayBuffer().then((buffer) => {
            let chunks = [];
            while(buffer.byteLength) {
                chunks.push(buffer.slice(0, chunkSize));
                buffer = buffer.slice(chunkSize, buffer.byteLength);
            }
            return chunks;
        });
    }
    return [];
};

[aswinshenoy]

Now there is another critical issue causing trouble in sending very large files as pointed out by @MidhunSureshR on the receiver's client, and a new issue has been opened #18.

[aswinshenoy]

Also #19 can be a potential issue faced while sending large files.