On 03/01/2013 09:14 AM, Max Vlasov wrote: > Hi, > > Working with lazarus on Linux Mint I noticed that when I mount a windows > shared with "Connect to server", everything works fine (Nautilus, > Midnight Commander, Lazarus file operations). But meeting that .gvfs > folder is hidden, I tried to mount "mount -t cifs" directly in the shell. > > After such mapping Nautilus and mc worked the same, but Lazarus stopped > seeing some of files (for example 3 from the folder containing 76). > > I tried to run lazarus in the debugger and narrowed it to findFirst/Next > that calls fpReadDir and this one calls linux' getdents64 to list > directoty entries (since it's fpc rtl, I'm posting here). Querying for > mentioning this at the web, I found that there were reports in the > bugtracker that attributed this to a samba bug > (https://bugzilla.samba.org/show_bug.cgi?id=8044 ). > > The question is what is different in nautilus and midnight commander > comparing to fpc directoy-listing functions that allows them to list > directories correctly in the bug's case? >
The difference with other tools is that FPC gives a very small buffer to getdents64. The strace for ls in the bug report http://bugs.freepascal.org/view.php?id=23732 shows that only one getdents is needed to get the full dir because the buffer size is much bigger. I don't know why getdents64 gets a buffer of only 280 bytes from FPC. This seems to me ridiculously low in modern systems and it has also an impact on the speed of findFirst/findNext. Ludo _______________________________________________ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
