[fpc-pascal] SocketError

[Marco van de Voort]

[ Charset ISO-8859-1 unsupported, converting... ]
> > Ask your OS vendor. These are OS errors.
> > But:
> > 11 is iirc EAGAIN, which means "try again", which is due to a potential
> > deadlock in the kernel not being handled properly. 
> 
> You say that SocketErrors are OS errors but some influence the FPC 
> compiler must have. 

You don't happen to fall for the trap where you use syscalls (e.g. a write)
before you query the error ?

Try to rework you code as follows

if fpxxxx<>0 then
   begin
     aninteger:=fpgeterrno;
     writeln(aninteger);
   end;

and not

writeln(fpgeterrno); // the write prologue might destroy the contents.