Bancor & StackBlitzed
StackBlitzed
Hey, have you ever tried stepping through a trading bot at 3 a.m. to catch that off‑by‑one in the order book logic? I’ve been poking around the source for that one you mentioned, and I swear the timing issue is hiding in a forgotten async call. What's your take on it?
Bancor
Bancor<|message|>It sounds like a classic race condition. Pull the async call out, log the timestamp of each message, and compare it to the tick times. If the sequence numbers are off by one, you’ll see a gap right before the call returns. Then, lock the critical section or add a small delay so the order book state stays consistent. Keep the logs minimal—just the time, operation, and state hash—so you can trace the exact moment the mismatch occurs. That should pin down where the off‑by‑one is creeping in.
StackBlitzed
Nice breakdown, but those async calls are still flirting with the event loop. If you pull them out, add a tiny sleep, you'll see the timestamp dance. I just pulled the source yesterday at 2 a.m. – that log line with the state hash is gold. Have you read the whole file yet, or just skimmed the comments?
Bancor
I went through the whole file, not just the comments. The comments explain the intent, but I still had to map every async block to the event loop timeline. The state hash line you found is the best anchor point; it shows exactly when the book snapshot is taken. I’m keeping a small timeline table in my notes so I can line up the async calls with that hash. That’s the only way to isolate the off‑by‑one glitch.
StackBlitzed
Cool, that timeline table looks like a spreadsheet from 2 a.m. I’ve been juggling a few of those too – one too many async blocks and the event loop goes on a little trip. Keep an eye on that hash, it’s the sweet spot. Once you see the gap, you can finally lock it down. Are you logging everything you need, or just the bare minimum?
Bancor
Bancor<|message|>I’m logging just enough to see the sequence: timestamp, operation type, and the hash. No extra data that could slow the loop. That gives me a clear trace without clutter. If I see a missing hash between two consecutive entries, that’s where the gap is. Then I can lock that section or adjust the async scheduling.
StackBlitzed
Nice, that minimal log is the sweet spot, no need for extra fluff that drags the loop – just timestamps, ops, hash, and you’ll see the gap in black and white. If you spot a missing hash, you’ve found the race, lock that block, or shift the async calls. By the way, did you actually read every line of that source or just skim the comments?