Date: Thu, 15 Mar 2001 12:42:44 +0200 From: Peter Pentchev <roam@orbitel.bg> To: Duncan Barclay <dmlb@dmlb.org> Cc: Kris Kennaway <kris@obsecurity.org>, hackers@FreeBSD.org, fs@FreeBSD.org Subject: Re: httpfs Message-ID: <20010315124244.A442@ringworld.oblivion.bg> In-Reply-To: <000d01c0ad3c$0ed83fb0$d26020c2@Cadence.COM>; from dmlb@dmlb.org on Thu, Mar 15, 2001 at 10:38:21AM -0000 References: <20010310031515.A8998@mollari.cthul.hu> <20010315095533.C12432@ringworld.oblivion.bg> <000d01c0ad3c$0ed83fb0$d26020c2@Cadence.COM>
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On Thu, Mar 15, 2001 at 10:38:21AM -0000, Duncan Barclay wrote: > Hi > > A thing to keep in mind about the portal file system is that it > designed to provide a means of getting a file handle to an object that > could be obtained by a call to open(2). It does not then provide > a means of reading/writing etc. to that object. > > If you take a look at the example portal.conf then you can see how > this can be used to open a socket via a pathname. Operations on the > socket are then make using write(2) etc. > > I don't really think that portalfs is the right thing to use to build > an httpfs with, but I would like to see how you managed to get your example > to work. Are you using stdout to create an anonymous file handle? What happens > if two processes concurrently read from /p/http/*? What I did was implement an 'exec' portal method, which executes a program with given arguments, obtained from the path components and portal.conf rules, and returns a - basically read-only - descriptor connected to its stdout and stderr. Kind of simple, pipe(), fork(), dup2(), exec().. the main trouble was with parsing the argument rules :) I'll clean it up in a few hours, and post it somewhere.. G'luck, Peter -- If there were no counterfactuals, this sentence would not have been paradoxical. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-fs" in the body of the message
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