This is the mail archive of the mailing list for the glibc project.

Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]
Other format: [Raw text]

Re: User-settable FD_SETSIZE and select()

On Tue, May 20, wrote:

> > Use poll().  
> This does make it harder to port applications using select() from other 
> implementations which allow higher limits for FD_SETSIZE.  E.g., HP/UX
> has a limit of 2048, and Tru64 has 4096.  And while the default limit os
> 1024
> on Solaris, I seem to recall it can be raised.
> > FD_SETSIZE will not be changed,  it's not binary compatible.
> I'm not sure what you are meaning here -- "not binary compatible" with what?

With existing binaries.

> As I noted, manually editing the current glibc header files allows an
> application
> to use higher FD_SETSIZE values without the need for either a Linux kernel
> rebuild or a glibc rebuild.

Change FD_SETSIZE, recompile glibc or an application using RPC
and use excessive RPC applications and portmap. You will get a lot
of mysterious errors.


Thorsten Kukuk
SuSE Linux AG        Deutschherrnstr. 15-19        D-90429 Nuernberg
Key fingerprint = A368 676B 5E1B 3E46 CFCE  2D97 F8FD 4E23 56C6 FB4B

Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]