Date: Sat, 17 Jul 1999 14:57:45 -0400 From: "David E. Cross" <crossd@cs.rpi.edu> To: freebsd-hackers@freebsd.org Subject: USFS (User Space File System) Message-ID: <199907171857.OAA81681@cs.rpi.edu>
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I am looking at a project that will require a user based process to interact with the system as if it were a filesystem. The traditional way I have seen this done is as the system NFS mounting itself (ala AMD). I would really like a more clean approach to this. What I am interested in is a 'User Space File System' that would interact with a user process in a similiar manor to how nfsd's do. A process would issue a mount (ok, this is different than NFSDs), then it would make a special system call with a structure, that call would return whenever a request was pending with the structure filled in with the appropriate information. The user process would fulfill the request, pack the return data into the structure and call kernel again. I have a number of questions on more specific ideas (like caching, inode/vnode interaction, etc). But I am just feeling arround for what people think about this. Any ideas/comments? -- David Cross | email: crossd@cs.rpi.edu Systems Administrator/Research Programmer | Web: http://www.cs.rpi.edu/~crossd Rensselaer Polytechnic Institute, | Ph: 518.276.2860 Department of Computer Science | Fax: 518.276.4033 I speak only for myself. | WinNT:Linux::Linux:FreeBSD To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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