Re: Disk write in a "for" loop with RwMutex never happens

[Gavin Ray via Digitalmars-d-learn]

On Monday, 29 August 2022 at 07:04:49 UTC, bauss wrote:
Does anyone know what is happening here? It's really puzzling.

You probably need to flush the output.

That's a good idea. I gave it a shot, and the following doesn't 
seem to change anything unfortunately:

```d
void writePage(PageId pageId, ubyte[PAGE_SIZE] pageData)
{
    synchronized (dbIOMutex.writer)
    {
        dbFile.seek(pageId * PAGE_SIZE);
        dbFile.rawWrite(pageData);
        dbFile.flush();
        dbFile.sync();
    }
}
```