Am Thu, 28 Dec 2023 20:06:42 +0100 schrieb Christoph Berg <c...@df7cb.de>:
> Re: Thomas Beierlein > > Two points here: > > > > - Journaling is easy, but to be honest TLF provides quite some > > robustness in that sense too. I have not heard any complies about > > lost data in all the years. > > Some time last year, I was auditing (well, reading) the tlf source to > check that. There are sync() and fsync() calls in there, so it's > probably mostly safe, but since calls that write to disk are spread > over the code, data safety looks quite ad-hoc. If power goes out while > the log is just being written, I'd bet there will be problems. > > Switching to sqlite would get us crash safety for free since that's a > library specifically written for that. Sure, bad things can happen anytime. I just said 'quite robust' and not 'problem free'. Besides the sync() calls there are some more points to make data losses unlikely: - The log is always kept on disk. Only a copy of it is in memory. - The file is kept closed most of the times and opened only when adding a contact or correcting an entry. - Actual file systems are often using journaling which helps also to some degree. But I agree with you that using a database would make the situation better. 73, de Tom DL1JBE -- "Do what is needful!" Ursula LeGuin: Earthsea --
