Request add: FlushWithoutDispose

[huangjinshe]

I need to read the log file, but continue logging to file, could we add something like FlushWithoutDispose?

Another problem I have is : does it using shared lock? I set WriteTo.Async(a => a.File(Common.Instance.Configs.LogPath, rollingInterval: RollingInterval.Day, shared: true)) but when I use

Log.Warning("testtesttesttesttesttesttesttesttesttesttest");
await Task.Delay(3000);

File.Open(path, FileMode.Open, FileAccess.Read, FileShare.Read)

it will still throw exception:

The process cannot access the file 'C:\log.txt' because it is being used by another process.

[nblumhardt]

Hi! The problem in your example is that you need to try reopening the file with a very permissive FileShare value (at least read and write). May be a good one to debug over on Stack Overflow, if you need some more info. HTH!

[huangjinshe]

Hi! The problem in your example is that you need to try reopening the file with a very permissive FileShare value (at least read and write). May be a good one to debug over on Stack Overflow, if you need some more info. HTH!

You right, I could open the file without exception by using FileShare.ReadWrite, but I don't need to write anything, I just need to read it, could you please explain it?? thanks.

Also I still think we should add something like FlushWithoutDispose, which may let some async content write to log before we using the log file and no affact to continue logging.

[nblumhardt]

👍 FileShare specifies what other users of the file can do with it while you have it open.

[nblumhardt]

I don't think FlushWithoutDispose stands a good chance of being implemented at this point; if you're really keen on this, you can use ReloadableLogger from Serilog.Extensions.Hosting:

https://github.com/serilog/serilog-extensions-hosting/blob/dev/src/Serilog.Extensions.Hosting/Extensions/Hosting/ReloadableLogger.cs

You can flush the logger by calling Reload() on it. There could be some subtleties to it, but it's pretty close to what you want.

HTH!