From mboxrd@z Thu Jan 1 00:00:00 1970 MIME-version: 1.0 Content-transfer-encoding: 7BIT Content-type: text/plain; charset=US-ASCII; format=flowed; delsp=yes Message-id: From: dave.l@mac.com To: Fans of the OS Plan 9 from Bell Labs <9fans@9fans.net> In-reply-to: <1225730768.4781.14.camel@goose.sun.com> Date: Mon, 3 Nov 2008 17:41:45 +0000 References: <298b7f07cdca5b40775e874c8d21694a@quanstro.net> <1225730768.4781.14.camel@goose.sun.com> Subject: Re: [9fans] Questions on notes Topicbox-Message-UUID: 2e3d3a64-ead4-11e9-9d60-3106f5b1d025 > Frankly, I was trying to see whether an external process reading > on somebody else's /proc/n/note would make any sense. One thing > that I wanted to implement was a "note thief" process that would > constantly read on a target's /proc/n/note and handle the notes > externally using a different kind of IPC to communicate with > the target. Why? If you want the target process to receive a different kind of IPC, then why don't you send your different kind of IPC directly to the process? > Would this be completely impossible > to implement using /proc/n/note ? I think so, simply because you can't "constantly read": you need to read, process, read, ... and while you're processing, the target process can get hit with a note.