From: Russ Cox <russcox@gmail.com>
To: Sergey Reva <rs_rlab@mail.ru>,
Fans of the OS Plan 9 from Bell Labs <9fans@cse.psu.edu>
Subject: Re: [9fans] How it work?
Date: Wed, 23 Mar 2005 12:34:16 -0500 [thread overview]
Message-ID: <ee9e417a050323093455887f9d@mail.gmail.com> (raw)
In-Reply-To: <538092562.20050323085756@mail.ru>
The rendezvous system call is the only synchronization
method the kernel provides to user space. QLocks,
RWLocks, and Rendezes all use rendezvous() to make
a process go to sleep or to wake it up.
You asked why the rendezvous system needed to be in
the kernel. Where else would it be? How else could a
process arrange to go to sleep?
Russ
next prev parent reply other threads:[~2005-03-23 17:34 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-03-22 19:00 Sergey Reva
2005-03-23 0:40 ` Tim Newsham
2005-03-23 6:57 ` Sergey Reva
2005-03-23 17:34 ` Russ Cox [this message]
2005-03-24 8:46 ` Sergey Reva
2005-03-24 8:55 ` noselasd
[not found] ` <4439b95e268ad4987f174271ac554f28@smtp.songnetworks.no>
2005-03-25 10:33 ` Sergey Reva
2005-03-25 17:08 ` Russ Cox
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