Date: Tue, 27 May 2003 22:38:55 +0400 (MSD) From: Igor Sysoev <is@rambler-co.ru> To: Terry Lambert <tlambert2@mindspring.com> Cc: arch@freebsd.org Subject: Re: sendfile(2) SF_NOPUSH flag proposal Message-ID: <Pine.BSF.4.21.0305272237140.49544-100000@is> In-Reply-To: <3ED39260.27639328@mindspring.com>
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On Tue, 27 May 2003, Terry Lambert wrote: > Why? Why not just fix the broken sendfile(2) implementation, > instead? Well, how ? > So there's no barrier to you fixing this by either breaking > up tcp_output() into two functions, or lazy-calling tcp_output(), > instead of aggreesively calling it between headers and file > data and file data and trailers in sendfile(2). Right? No > API change necessary? Did you look inside sendfile() implementation ? There'are no tcp_output() calls at all. Header and trailer are written by writev() and file pages are written by so->so_proto->pr_usrreqs->pru_send(). Igor Sysoev http://sysoev.ru/en/
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