TOtosh·Apr 4, 2021Submission
123 points · Open discussionliuliu
dflat
Swift2020–2021
liuliu / dflat
dflat
Structured Data Store for Mobile
2Distinct people
5Mentions
0Explicit recommenders
307GitHub stars
What to know before exploring
What it is
Structured Data Store for Mobile
GitHub
Where it is used
No documented product use has been verified yet.
What people are saying
No recommendation phrase was found in the indexed comments.
No classified warning is attached to this page. Read the discussions before treating silence as approval.
Also in these discussions
No other repository is repeatedly linked in the same discussions.
This week on Hacker News
Nov 7–Nov 14 UTC · Direct repository links and separately labeled related project stories. Indexed through 11/14/2026, 1:49:46 PM UTC.
No direct repository links were found in the indexed HN discussions over the past seven days. Older discussions are available below.
Mentions over time
HN mentions by month5 dated mentions
Observed mentions: 2020-07-01 04:07:11 UTC to 2021-04-04 08:46:59 UTC.
Counts come from the repository’s dated source evidence. Index cutoff: 2026-11-02 08:16:59 UTC.
View mention counts and date ranges
| Period | Start (UTC) | End (exclusive, UTC) | Mentions | Submissions | Comments |
|---|---|---|---|---|---|
| Jul 2020 | 2020-07-01 00:00:00 UTC | 2020-08-01 00:00:00 UTC | 1 | 1 | 0 |
| Aug 2020 | 2020-08-01 00:00:00 UTC | 2020-09-01 00:00:00 UTC | 0 | 0 | 0 |
| Sep 2020 | 2020-09-01 00:00:00 UTC | 2020-10-01 00:00:00 UTC | 0 | 0 | 0 |
| Oct 2020 | 2020-10-01 00:00:00 UTC | 2020-11-01 00:00:00 UTC | 1 | 0 | 1 |
| Nov 2020 | 2020-11-01 00:00:00 UTC | 2020-12-01 00:00:00 UTC | 0 | 0 | 0 |
| Dec 2020 | 2020-12-01 00:00:00 UTC | 2021-01-01 00:00:00 UTC | 0 | 0 | 0 |
| Jan 2021 | 2021-01-01 00:00:00 UTC | 2021-02-01 00:00:00 UTC | 0 | 0 | 0 |
| Feb 2021 | 2021-02-01 00:00:00 UTC | 2021-03-01 00:00:00 UTC | 1 | 0 | 1 |
| Mar 2021 | 2021-03-01 00:00:00 UTC | 2021-04-01 00:00:00 UTC | 0 | 0 | 0 |
| Apr 2021 | 2021-04-01 00:00:00 UTC | 2021-05-01 00:00:00 UTC | 2 | 1 | 1 |
What Hacker News says
5 sourcesFlatbuffers would be better as it doesn't need to deserialize at all (I think protobuf supports to partially deserialization nowadays?). I did something similar with https://github.com/liuliu/dflat too!
In SQLite Plus: Missing SQLite functionsThat doesn't sound right. SQLite's lock for writes is not the best, but it is still pthread mutex under the hood. Are you sure your compilation options for SQLite is right? One common pitfall is compiling without `-DHAVE_USLEEP`. In absence of that flag, SQLite will use sleep in case of conflict, and that will have time resolution of 1 second, causing 1s delay on every lock contention. That flag tells SQLite to use usleep instead, and it is substantially faster on busy timeout.
Here is my SQLite compilation flags: https://github.com/liuliu/dflat/blob/unstable/external/sqlit...
Here is where the flag used: https://github.com/sqlite/sqlite/blob/d46beb06aab941bf165a9d...
In Why I Built LitestreamJust updated https://github.com/liuliu/dflat/ with Apple's atomics. Seems to be just some naming changes from glessard ones (when doing the change), otherwise a pretty smooth transition.
In Swift AtomicsDflat: SQLite \heart FlatBuffers
2 points · Open discussion