From owner-freebsd-stable Thu Mar 29 11:52:41 2001 Delivered-To: freebsd-stable@freebsd.org Received: from flounder.jimking.net (flounder.jimking.net [209.205.176.18]) by hub.freebsd.org (Postfix) with ESMTP id 6727837B71A for ; Thu, 29 Mar 2001 11:52:36 -0800 (PST) (envelope-from jim@jimking.net) Received: from jking (jking.lgc.com [134.132.76.82]) (authenticated) by flounder.jimking.net (8.11.2/8.11.2) with ESMTP id f2TJqGO67482 (using TLSv1/SSLv3 with cipher RC4-MD5 (128 bits) verified NO); Thu, 29 Mar 2001 13:52:22 -0600 (CST) (envelope-from jim@jimking.net) Message-ID: <00f201c0b889$c4ff4d30$524c8486@jking> From: "Jim King" To: "Paul Marquis" Cc: "Nate Williams" , "Brian Matthews" , "Allen Landsidel" , References: <15043.35980.669828.971544@nomad.yogotech.com> <00dd01c0b886$d8510250$524c8486@jking> <3AC390FD.6C03BF8F@pobox.com> Subject: Re: Threads vs. blocking sockets Date: Thu, 29 Mar 2001 13:52:15 -0600 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.50.4133.2400 X-MimeOLE: Produced By Microsoft MimeOLE V5.50.4133.2400 Sender: owner-freebsd-stable@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG None of the documented values for errno as set by send(2) indicate "only part of the data was sent", at least by my reading. Which value of errno indicates that I need to resend part of the data? How do I tell how many bytes were sent? Still sounds broken to me. Jim "Paul Marquis" wrote: > Under the manual entry for send(2), the RETURN VALUES section states: > > The call returns the number of characters sent, or -1 if an > error occured. > > So if you request to send 100 bytes, the OS may only be able to sent > half those and you need to check how many you sent an resend the part > that wasn't sent. > > Nate is right. > > Jim King wrote: > > Nate Williams wrote: > > > Again, all threading libraries I've used (not just on FreeBSD) *require* > > > the user to check that when sending/receiving data, the caller must make > > > sure that all the expected data has been sent/received. > > > > The man page for send(2) doesn't mention this. It sounds broken to me. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message