Re: Lack of Documentation about SA_RESTART...

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Sat, Jul 23, 2005 at 05:30:42PM -0700, Linus Torvalds wrote:
> On Mon, 11 Jul 2005, Theodore Ts'o wrote:
> > 
> > According to the Single Unix Specification V3, all functions that
> > return EINTR are supposed to restart if a process receives a signal
> > where signal handler has been installed with the SA_RESTART flag.  
> 
> That can't be right.
> 
> Some operations, like "select()" and "pause()" always return EINTR, and 
> indeed, real applications will break if you always restart. Restarting a 
> pause() would be nonsensical.

The spect says "unless otherwise specified".  The description for
pause() states that the process will sleep until receiving a signal
that terminates the process or causes it to call signal-handling
function.  That would presumably count as an "otherwise specified".

						- Ted
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

[Index of Archives]     [Kernel Newbies]     [Netfilter]     [Bugtraq]     [Photo]     [Gimp]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Video 4 Linux]     [Linux for the blind]
  Powered by Linux