NOTES.md

Notes

Todos

• remaining non-passing autobahn tests
• UTF-8 validation (autobahn section 6)
• websocket compression (autobahn sections 12 and 13)
• add logging
• profile throughput and latency
• handle all errors?
• add comparing wstest results to test
• add references to RFC throughout comments and docs
• validate Sec-WebSocket-Accept header
• support send fragmentation?
• TLS support
• timeout handling?
• accept hostname/URI and port as parameter
• test autobahn test cases in parallel to speed them up?

Optimisations to try

• store payload on the stack and if too big require handler to work in chunks
• disable all frame checks and measure difference

Write to socket stream in chunks to use less memory?

// Write masked payload in chunks
var chunk: [4096]u8 = undefined;
var offset: usize = 0;
while (offset < payload.len) {
    const chunk_size = @min(chunk.len, payload.len - offset);
    for (0..chunk_size) |i| {
        chunk[i] = payload[offset + i] ^ mask_key[(offset + i) % 4];
    }
    try writer.writeAll(chunk[0..chunk_size]);
    offset += chunk_size;
}