A trick with perl

[Tom Anderson]

On Mon, 2004-01-05 at 11:12, David Relson wrote:
> On 12/24 a patch from Henning Makholm was added to 0.15.12 to help with
> that situation - letting bogofilter run via pipe instead of
> stdin/stdout.  If you're interested, look for function
> bogoreader_close_ifeof(), how it is used, and how feof() is used.  I
> don't know enough about pipes to evaluate the patch, test it, or debug

feof() just returns a boolean regarding whether the EOF indicator is
found on a given stream, and bogoreader_close_ifeof() calls
bogoreader_close() when feof(fpin) is true.

The question is, how do you set the EOF indicator without closing the
stream?  Autoflush?  I don't recall that working before, but it was
probably an earlier version than 0.15.12.  

Autoflush in perl can be set as follows "select((select(W), $| =
1)[0]);".  I'll test if bogofilter returns output after a syswrite or
still requires a close() when I get some free time.

Tom

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