[Bug libc/1995] fprintf() + fmemopen() error (?)

["rsa at us dot ibm dot com" <sourceware-bugzilla at sourceware dot org>]

------- Additional Comments From rsa at us dot ibm dot com  2006-04-19 20:05 -------
Hi Michael,

In my tests I also found that setting stream buffering to the size of buf works
just as well as no-buffering and is probably a better method because it reduces
turnaround, albeit slightly, i.e. 

setbuffer(fp, buf, sizeof(buf));

I actually sent a patch to libc-alpha that got lost in the ether somewhere
(probably sitting in limbo on an ibm relay server again) that calls
_IO_setbuffer() on the _IO_FILE * stream pointer in fmemopen() after the
_IO_fopencookie() call in case it was deemed acceptable to change the buffering
implicitly.  I'll resend for comment tomorrow if the patch doesn't show up.

I suggest mentioning setbuffer(fp, buf, sizeof(buf)) in the man page as the
recommended method for getting around the problem.  I believe the libc info page
needs to be updated as well.

-- 


http://sourceware.org/bugzilla/show_bug.cgi?id=1995

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